Desarrollo Backend Jobs

Busco formar un equipo multidisciplinario de élite para lanzar una fintech capaz de competir cara a cara con Mercado Pago y Naranja X en el mercado argentino. La solución debe nacer escalable, segura y 100 % alineada a la normativa del BCRA y de la UIF. Alcance inicial (MVP de alto nivel): • Módulos transaccionales: transferencia inmediata de dinero (CVU-alias), pagos con QR y pago de servicios básicos. • Recargas: carga de celular, recarga de SUBE y futuros verticales similares. • Wallet digital: administración de saldo, historial en tiempo real, alertas push y gestión de tarjetas. • Cumplimiento legal: políticas KYC/KYB, prevención de lavado, términos y condiciones y contrato de usuario. • Ba...

Tengo un SaaS en producción construido con Angular (frontend) y Laravel (backend) que está sufriendo problemas de rendimiento: tiempos de carga altos, consultas lentas y picos de consumo de recursos que impactan a los usuarios. Necesito que te integres al repositorio existente, localices la causa raíz y apliques mejoras que permitan volver a una respuesta fluida antes de que continuemos con el roadmap de nuevas funcionalidades. El trabajo comienza con un análisis detallado del código actual, bases de datos, llamadas a servicios y configuración del servidor. Una vez identificados los cuellos de botella, espero refactorizaciones, optimización de queries, lazy-loading en el front o la solución técnica que consideres adecuada. Ent...

Estoy creando una aplicación web y necesito a alguien que domine Firebase Studio para acelerar el desarrollo. El objetivo principal es montar toda la capa de backend en Firebase: • Configurar desde cero la base de datos y definir una estructura clara y escalable. • Integrar Firebase con servicios externos que ya uso en el proyecto. • Implementar la autenticación de usuarios (correo, Google, etc.). • Habilitar notificaciones en tiempo real para eventos clave dentro de la aplicación. • Gestionar el almacenamiento de archivos de forma segura y eficiente. Trabajo con un stack moderno (React + TypeScript) y agradeceré buenas prácticas, documentación breve de lo realizado y sugerencias para futuras optimizaciones. Si t...

Busco desarrollar el backend de un sistema empresarial centrado en el seguimiento de procesos, específicamente el seguimiento de tareas diarias. Qué necesito: • Arquitectura robusta con API REST bien documentada. • Modelo de datos que permita crear, asignar, actualizar y cerrar tareas; registrar tiempos y responsables; generar estados de avance. • Autenticación y control de roles (admin, supervisor, operario). • Endpoints optimizados para reportes en tiempo real y paneles de KPI. • Entorno listo para escalar (idealmente Node.js + Express o Java Spring; estoy abierto a otros stacks si justificas ventajas). • Pruebas unitarias y de integración básicas, así como guía breve de despliegue en cloud (AWS, A...

Quero lançar um portal imobiliário focado na minha região, inspirado no modelo do ZapImóveis, onde proprietários possam anunciar imóveis para venda ou locação e interessados encontrem oportunidades rapidamente. O site precisará: • Duas áreas de usuários bem definidas. Vendedores / locatários poderão publicar imóveis e visualizar os planos disponíveis; compradores / inquilinos terão acesso aos anúncios e filtros de busca. • Modelos de cobrança por assinatura mensal e também pacotes avulsos de anúncios. Todo o fluxo de contratação deve ocorrer dentro da plataforma, com renovação automática e controle de val...

I have a production-level backend built in Python that uses Krackend. A blocking bug surfaced and I need it fixed on a strict, one-off, fixed-price basis. I will share my screen and grant console access through TeamViewer; no direct server credentials or repository checkout will be provided, so you must be comfortable debugging live on my machine. We can connect tomorrow and start immediately. During that session I will reproduce the issue for you, walk you through the current code structure, and stay available to answer questions while you diagnose, patch, and test. Once the problem is resolved I need a brief write-up of the root cause and the exact changes you made so I can commit them to the main repo afterwards. Deliverables • Working fix applied and demonstrated via TeamViewer ...

I’m putting together a modern web application and I want it engineered end-to-end with React on the front and Node.js on the back. Real-time updates are central to the experience, so you should be comfortable wiring WebSockets or a layer that keeps every client instantly in sync without page refreshes. Here’s the flow I have in mind: • Design a clean, reusable component architecture in React (hooks, context, or Redux—whichever you know will scale). • Stand up a lightweight Node.js/Express API that pushes and receives real-time events efficiently. • Connect the two, secure the traffic, and deploy to a cloud host so I can test live. I’ll supply wireframes and the basic data model; you translate that into working code, commit to Git regularly, a...

I run a product stack built entirely on Cosmol 5.5 and need an experienced hand to stay on board for the long haul. Day-to-day work ranges from squeezing every bit of performance out of the current setup, through rolling out brand-new modules, to jumping on unexpected bugs before they disrupt users. Because the platform touches both front-end and back-end layers, a solid grasp of user-facing polish, data-processing logic, and third-party system hooks will serve you well. The codebase lives in Git; regular commits, concise pull-request notes, and clear change logs are non-negotiable. Whenever a feature ships, I’ll expect matching inline comments and a quick markdown brief that explains configuration steps or edge-case behaviour so future maintenance stays painless. Communication happ...

I'm looking for a skilled developer to create a personal finance management website. The site should primarily focus on future value calculations and also include a feature for calculating the present value of past cash flows. Key features required: - Future Value Calculations - Single lump sum - Regular annuity - Growing annuity - Present Value Calculations of Past Cash Flows Ideal skills and experience: - Proficiency in web development (HTML, CSS, JavaScript) - Experience with financial calculation algorithms - Strong UI/UX design skills to ensure user-friendly navigation - Backend development skills to manage data securely and efficiently Please provide examples of similar projects you've completed.

We are building an ad monetization platform similar to Freestar and AdPushup. The platform helps website and app publishers maximize their ad revenue. We are a Google Partner with access to Google Ad Exchange (AdX) demand and have accounts with multiple SSP/Prebid partners. Note: We are not currently an MCM (Multiple Customer Management) partner, so AdX demand is served through our own GAM account. The platform consists of three main parts: • A JavaScript tag that publishers place on their website which handles everything: running Prebid auctions, calling GAM, rendering ads, and reporting data back to us • A backend / admin dashboard where we configure everything per publisher: ad units, bidders, floors, formats, and settings • A publisher-facing dashboard ...

Project: Build a Publisher Monetization Network (Web + App) Overview We are building a next-generation publisher monetization company. Our mission is to become a full monetization partner for digital publishers by owning the technology, optimization systems, reporting, and revenue workflows. This is not a simple SaaS dashboard. This is infrastructure required to run: demand integrations header bidding yield optimization refresh & viewability logic reporting & reconciliation publisher payments The goal is to operate a company comparable to Freestar, powered by Google Ad Manager and Prebid, but with stronger automation, transparency, and scalability. What We Are Building A centralized system where we can: onboard publisher websites and apps deploy monetization automati...

My WordPress site feels snappy on the front-end, yet the server is taking too long to assemble each page. The priority is clear: cut backend processing time so visitors receive content far faster. The work centers on three intertwined areas: • Plugin performance – audit active plugins, remove or replace heavy ones, and refactor any custom code that slows execution. • Database queries – profile slow queries, add or adjust indexes, and fine-tune wp_options or autoloaded data to reduce query count and execution time. • Theme code – streamline template files, eliminate redundant functions, and ensure hooks run only when required. I already handle basic caching and asset minification; the bottleneck lies deeper. Please benchmark before and after (...

I want visitors to enter their date, exact time, and place of birth on my WordPress site and instantly receive a full suite of Vedic astrology results. The module needs to compute and display every divisional chart from D1, D9, D10 through D60, show lucky numbers and lucky colours, and lay out key insights such as planetary positions, house (Bhava) placements, and Nakshatra positions. I do not yet have production-ready code, so please bring or build the complete calculation engine. Whether you adapt an open-source ephemeris (e.g., Swiss Ephemeris) or write fresh PHP/JavaScript routines is up to you, as long as the output is accurate and the front-end embeds cleanly through a shortcode or block. Acceptance will be based on: • Correct rendering of all D1–D60 charts with proper...

I'm looking for a skilled developer to create a Scrypted Video Integration Platform. The platform should integrate with security cameras and smart doorbells, and provide the following functionalities: - Live streaming - Motion detection alerts - Video storage and playback Ideal skills and experience: - Experience with video integration platforms - Familiarity with security cameras and smart doorbell APIs - Strong backend and frontend development skills - Knowledge in real-time data processing Please provide examples of similar work done.

I’m ready to launch a dedicated chiptuning site where visitors can see what I offer and reserve a slot right away. The core of the project is a clean service-based booking flow: clients choose their vehicle, pick from my predefined tuning packages, then lock in a date and time. Here is exactly what I need built: • Responsive website with a modern automotive look and clear service pages. • Booking module that supports appointment scheduling and lets users select specific service options before checkout. • User accounts should be available but not forced; guests can book, while registered users gain the benefit of tracking past appointments and faster re-booking. • Admin area where I can add or edit tuning packages, adjust time slots, and receive email not...

I have roughly 25 Microsoft Word templates with fixed wording and clearly marked placeholders. In seven days or less I need a working web application that lets a registered user fill a form, upload any required pictures, pay through Stripe, and instantly receive a freshly generated .docx where both the text and the images have been merged into the correct spots. Here is what must be in the finished product: • Secure authentication with two roles only—admin and user. • Stripe integrated so a payment successfully unlocks the generate-document action. • A backend service that stores the templates, injects the incoming text and images, and streams the completed Word file without errors or broken formatting. • An admin screen where I can upload, remove, or edit...

Read carefully. — Execution-Only App Build Start to Finish (Read carefully.) Read carefully. Read carefully. Read carefully. Read carefully. Read carefully. Most applicants are NOT a fit. This is NOT an AI role. NOT Python, automation, scraping, ML, bots, or architecture. If your background is primarily Python/AI/automation, do not apply. We are hiring an execution-only developer to build and to make small, precise fixes for a web/mobile app under strict instructions. What you will do: Build apps web based and mobile What you must NOT do No refactors, optimizations, or redesigns No “better solutions” unless explicitly requested No scope expansion, creativity, or initiative outside instructions We value discipline, stability, and reliability over creativity or...

I’ve put together the entire front-end of my React Native app and now I’m ready to connect it to a real backend. During a live Zoom or Microsoft Teams session I want to screen-share and work side-by-side while you guide me through each step. Supabase is the database service I’d like to use (or firebase), though I’m open to brief comparisons with Firebase if a decision point comes up. I have no prior backend experience, so you’ll need to walk me through project structure, environment variables, and deployment best practices. Whether the supporting server logic ends up in Node.js or another lightweight option, keep everything clear and beginner-friendly so I can maintain it afterward. We must cover: • Authentication setup – phone OTP authentication....

I need a developer who knows BigCommerce inside-out to extend the store’s core functionality. The immediate focus is shipping logic: I want new shipping methods added, existing rates adjusted, and clear zone-based rules so customers see the right options every time they check out. Changes must be configured in the control panel rather than hard-coded, so I can edit them later without touching code. Alongside shipping, product pages require more flexible variations. Think custom option sets that handle complex combinations cleanly, keep inventory in sync, and present a smooth selector on Stencil templates. Deliverables • New shipping methods visible at checkout and in the admin panel • Rate tables updated and verified for accuracy across all defined zones • Zone...

I need help in building my own mobile proxy set up: More details: Is this project for business or personal use? For an existing business What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? ASAP

I need a comprehensive project or presentation on web development for college. The project can focus on any aspect of web development, including: - Front-end development - Back-end development - Full-stack development The preferred format for the submission is a slideshow presentation. Ideal skills and experience: - Knowledge of web development concepts and technologies - Ability to create informative and engaging presentations - Experience in project development in the web domain is a plus

I want to create a mobile application inspired by Rapido that lets users book taxis instantly. The flow should feel like a friction-free service-booking platform: pick-up and drop-off locations, see nearby drivers, confirm the ride, then track the car live until arrival. To keep things clear, here is what I expect to be included: • Real-time tracking so riders can follow the driver’s route from acceptance to drop-off. • A driver ratings & reviews system that lets passengers leave feedback and see an average score before they confirm. • Multiple payment options—card, wallet, and cash on arrival at minimum—handled through a secure gateway. iOS and Android releases are both in scope. I will supply brand assets; you will handle UI/UX, backend, driv...

Website Requirement Document (WRD) / Scope of Work (SOW) Company Name: TechmarqX Private Limited Business Type: AI Automation, GTM Solutions, Lead Generation, Recruitment, Payroll Services Project Deadline: 28 February 2026 Objective: To build a professional full-stack website that presents TechmarqX as an AI Automation and GTM Solutions company, generates leads, showcases services, and supports recruitment and payroll services. 1. Required Website Pages • Homepage • About Us • Services Overview • Individual Service Pages • AI Platform / Products Page • Industries Served • Case Studies • Careers / Recruitment Page • Payroll Services Page • Contact Page 2. Services to be Displayed • Lead Discovery & Prospecting • LinkedIn &...

Job Title: Python Backend / Platform Engineer (Django) Experience: 6-7 Years Duration: 2 Hours per Day Budget: ₹24,000 per Month Mode: Remote Role Overview We are looking for a Python Backend / Platform Engineer with strong experience in Django and backend system development. This role primarily focuses on backend engineering, API development, and platform-level integrations. While exposure to cloud and deployment environments is required. The candidate will work closely with platform and infrastructure teams to build scalable and secure backend services. Key Responsibilities Design, develop, and maintain backend services using Python and Django Develop scalable and secure APIs following API-first design principles Build and maintain backend logic, integrations, and platform services Work ...

Description We are an early-stage fintech infrastructure startup building a developer-first payments product with global scope. The project is pre-launch, already architected, and positioned to raise institutional funding once the technical foundation and MVP are finalized. We are looking for a CTO Co-Founder to take full ownership of the technical vision and execution and help build a company designed for scale, defensibility, and fundraising. What You’ll Do Own the technical architecture and roadmap Build and harden a core fintech API / platform Make key decisions around scalability, security, and reliability Collaborate closely with the founder on product and investor readiness Lead future engineering hires post-funding Ideal Profile Strong backend / systems engineerin...

I want to build an in-house AI system that lets my team drag-and-drop both KYC and Income documents and, in one click, receive a neatly formatted PDF report. The PDF must always include: • Eligibility check (based on the rules I will supply) • Salary details in a clear monthly breakdown table • Current obligations in a similar table • Pending documents list • Pending form details • Probable queries for the credit team All eligibility logic, standard document lists and a library of past queries will be provided so the model can be fine-tuned to our exact policies. Accuracy and consistency matter more than fancy UI; I simply need a reliable back-end that ingests scans or PDFs, extracts the data, applies the rules and returns a single consolidated...

Saya ingin sebuah situs web blog/informasi yang rapi, cepat, dan mudah diperbarui. Fokus utamanya adalah menyajikan konten artikel, jadi tampilan harus nyaman dibaca di desktop maupun seluler. Fitur yang saya butuhkan: • Komentar pengguna agar pembaca bisa berdiskusi langsung di tiap artikel. • Tombol berbagi ke media sosial supaya konten mudah tersebar. • Sistem multi-penulis sehingga beberapa kontributor bisa menulis, menjadwalkan, dan menerbitkan artikel melalui dasbor terpisah. Tolong siapkan arsitektur front-end dan back-end, pilih CMS atau framework yang paling efisien, dan pastikan keamanan dasar (captcha, moderasi komentar, dan backup rutin). Desain responsif, dokumentasi singkat cara menambah penulis serta panduan update konten juga termasuk dalam deliverable.

I’m looking for an experienced web designer/developer to build a modern, high-performance website for my clothing brand. This is not a basic template site, I want a premium, conversion-focused fashion website similar to luxury DTC brands. Scope of work • Design + develop full website (frontend + backend integration) • Clean, modern, editorial fashion aesthetic • Mobile-first and fast loading • Product pages, collections, cart, checkout • Custom sizing or personalization options (important) • Payment gateway integration • CMS so I can manage products and content • SEO-ready structure • Analytics + tracking setup • Scalable for future growth Technical preferences • React / or similar modern stack • Can also sugg...

Project Title: Development of Education-Focused Mobile News App We are looking for an experienced mobile app developer/team to build a news application focused primarily on the education system. The app will function similar to popular news apps like Dailyhunt or Inshorts, but exclusively dedicated to education-related content. Core Requirements: Android app (Phase 1), iOS later Clean, modern UI (student-friendly design) News feed with categories: Bhopal Madhya Pradesh India Global Expert Opinion Student Guidance Podcasts User login (email/mobile + social login) Push notifications Search & filter options Bookmark & share feature Advertisement integration (banner + sponsored posts) Backend Admin Panel (CMS) for content upload & management Scalable, secure, an...

Saya membutuhkan seorang pengembang yang dapat membangun website e-commerce modern dengan pendekatan custom build, bukan memakai Shopify ataupun WooCommerce. Fitur inti yang harus tersedia: • Keranjang belanja yang responsif dan mudah digunakan. • Sistem pembayaran terintegrasi (gateway lokal maupun internasional) dengan proses checkout aman. • Modul manajemen inventaris agar saya dapat menambah, mengedit, serta memantau stok secara real-time. Harapan saya: 1. Desain front-end clean, mobile-first, dan cepat dimuat. 2. Back-end terstruktur dengan API yang rapi sehingga mudah di­scale maupun diintegrasikan ke aplikasi lain. 3. Dashboard admin sederhana untuk mengelola produk, pesanan, dan laporan penjualan. 4. Dokumentasi singkat mengenai cara deploymen...

I want to build a service marketplace app similar to Sheba/Urban Company. Structure: Category → Sub‑Category → Service (service is the base unit) Main Modules: 1) Customer App 2) Worker App 3) Admin Panel (Web) 4) Backend + Database + APIs Core Features: - Category/Sub‑Category/Service listing - Fixed & Variable Pricing Engine - Fixed & Variable Time Calculation - Booking System - Worker Matching (primary + extended radius) - Payment Integration (bKash/Nagad/SSLCommerz) - Big Job Module (inspection + verification) - Notifications - Service activation/deactivation - Promo support Admin Panel: - Add/Edit Category, Sub‑Category, Service - Set price type (fixed/per_sqft/per_room/per_unit) - Set base price, min/max price, base unit - Set time type (fixed/variable) - Set ba...

Project Overview We are building a Google-based Building Performance Intelligence system for property management portfolios. The platform tracks: • SLA compliance • Task execution events • Audit scores • Rework & complaints • Certification scoring The system will serve: • Cleaning crews (task execution interface) • Supervisors (audit module) • Property managers (BI dashboard) The goal is to create an MVP that runs entirely on Google ecosystem tools Scope – MVP Phase 1 We need a developer to build: 1. Backend • Firebase or Supabase backend • Structured data model (Buildings, Zones, Tasks, Executions, Audits, Complaints) • Role-based access control 2. Web App (PWA preferred) User roles: • Cleaner &bul...

I'm looking for an experienced developer to build a text-based social networking app with the following core features: - User Profiles - Messaging System - News Feed - Reels and Videos Authentication will be via email login. Ideal Skills and Experience: - Proven experience in developing social networking apps - Strong knowledge of building secure and scalable messaging systems - Expertise in implementing user profiles and news feeds - Familiarity with video content integration and display (reels and videos) - Proficient in email authentication methods Please provide a portfolio with relevant projects. Looking forward to your proposals!

I’m forking and need a seasoned TypeScript engineer who is totally at ease working Git-first and can dive straight into a Nostr codebase. The immediate goal is to introduce a suite of non-public features around improved listings and, above all, a powerful personalised content-suggestion layer. Scope • Extend the existing front-end and back-end (TypeScript, React, Node) with the new private listing modules I will outline in Figma and Notion. • Build a recommendation engine grounded in socio-psychology principles rather than the usual collaborative or content-based filters. I will supply the research notes and sample scoring model; you will translate them into production code, unit tests, and API endpoints. • Keep everything behind a feature flag so the public fo...

I need an Angular-based project, which is already built for manufacturing, deployed on a cloud server. I'm open to discussing which cloud service provider to use. Requirements: - Experience with deploying Angular applications - Familiarity with major cloud service providers (AWS, Azure, Google Cloud) - Knowledge of cloud server configurations and security best practices - Ability to troubleshoot and resolve deployment issues Ideal Skills & Experience: - Proven track record in cloud deployments - Strong understanding of Angular and related technologies - Good communication skills for discussing deployment options

I am seeking a full custom SaaS rebuild of RememberMe, a QR based memorial platform that links engraved stainless steel plaques to digital memorial profiles containing photos, videos, audio recordings, obituaries, biographies, timelines, and family submitted content. This is a ground up rebuild designed for long term scalability (millions of users), performance, and security, not a template site. Key Requirements: Scalable cloud-based backend architecture Secure user authentication and account management Media storage and optimization (photos, video, audio) Stripe integration for e-commerce checkout Automated unique QR code generation tied to profiles Short, engraving-friendly URL system Public memorial pages (SEO optimized) Robust admin dashboard with: User management Order management &am...

I’m building an end-to-end marketplace that connects car-salvage yards with buyers looking for specific parts. The project covers two products working in tandem: 1. A cross-platform mobile app targeting both iOS and Android. Within the app users must be able to: • search the entire catalog of salvaged parts by keyword, make, model, year, and VIN • post new parts for sale from the yard side, including photos, descriptions, condition, price, and inventory count • chat in real time so buyers and yards can negotiate or confirm fitment before checkout 2. A responsive web dashboard for yard owners and internal staff. The dashboard needs robust: • inventory management (batch uploads, stock alerts, status changes) • user management (role-...

I’m building a lightweight MVP that lets independent cafés run a fully automatic, card-linked loyalty programme without issuing separate cards or apps. The core of the job is a secure backend service that: • Listens to Square and SumUp webhooks / APIs, fingerprints the payment card (never the full PAN) and recognises returning customers. • Increments a visit counter and, when a customer hits the reward threshold, instantly triggers the reward logic. • Fires an SMS through Plivo to let the guest know they’ve just earned, for example, a free coffee. What I’ll look for in the finished work 1. Clean, well-documented code (language and framework are up to you as long as it’s reliable and easy to maintain). 2. Clear setup instructions a c...

I'm looking for an experienced full-stack developer to implement the MVP end-to-end. I'll need a video call, so no scams here. Overview Clients submit coding tasks through a store-like request system. Each request becomes a project with clear lifecycle tracking, communication, time tracking, and weekly billing. The platform must support multiple roles: Client, Developer, and Admin. Core Features (MVP) Service Request & Project Creation • Store-style service selection • Structured task submission (requirements, priority, attachments) • Automatic project creation after request/payment Project Lifecycle Management • Status flow (e.g. Received → Investigating → In Progress → Review → Completed) • Progress updates and activity hi...

I’m ready to launch an online presence for my new brokerage and need a website that conveys the same polish and credibility traders see on firms such as Exness or IC Markets. The goal of this initial project is to deliver a fully responsive, production-ready site whose design, navigation, and performance feel on par with those benchmarks. Here’s the scope I have in mind: • Visual & UX direction – modern, fast-loading pages with clear information hierarchy, professional typography, and a dark-on-light colour palette similar to the reference sites. • Front-end development – React, , or an equally high-performance stack that supports component reuse and effortless scaling. • Back-end foundation – secure user-auth scaffolding, database s...

Saya berencana menghasilkan uang di Freelancer dengan menjual produk atau jasa, dan pilihan saya jatuh pada pengembangan perangkat lunak. Untuk itu, saya membutuhkan seorang developer andal yang dapat membantu merancang dan membangun sebuah produk software siap jual. Apa yang saya butuhkan: • Ide dan rancangan awal (MVP) yang layak dipasarkan. • Implementasi pengembangan perangkat lunak—saya terbuka apakah ini berupa aplikasi web, mobile, ataupun desktop, selama mudah didistribusikan di marketplace Freelancer. • Kode sumber yang bersih, terdokumentasi, serta panduan singkat cara deployment dan penggunaan. • Uji fungsional dasar untuk memastikan produk berjalan stabil sebelum dipasarkan. Kualifikasi yang saya harapkan: • Pengalaman nyata dalam peng...

Saya ingin membangun sebuah situs web yang berfokus pada Pengembangan web dengan fitur utama berupa formulir pemesanan online yang mudah digunakan. Situs perlu responsif di desktop maupun perangkat seluler, memuat cepat, serta memiliki tata letak yang bersih agar pelanggan bisa menemukan dan mengisi formulir tanpa hambatan. Ruang lingkup pekerjaan: • Mendesain dan mengimplementasikan antarmuka front-end yang modern dan ramah pengguna. • Membuat back-end yang aman untuk menyimpan dan mengelola data pemesanan. • Menyiapkan dashboard sederhana untuk meninjau, menambah, atau mengekspor data pemesanan. • Mengintegrasikan notifikasi email otomatis agar saya dan pelanggan mendapatkan konfirmasi segera setelah formulir terkirim. • Menguji fungsionalitas di berbaga...

Hiring Senior Software Engineer / AI Engineer (Remote – India Preferred | US Time Zone) About the Role We are looking for an experienced Senior Software Engineer / AI Engineer who can participate in technical interviews and work on modern software and AI-based projects with international clients. This role is suitable for someone who is confident in real development work, understands system design, and can communicate clearly during technical discussions. You will work remotely with global teams and contribute to scalable applications and AI solutions. Location Remote work India-based candidates preferred Working Hours Availability required during US time zone hours Responsibilities Participate in technical interviews and technical discussions Build and maintain web applic...

I already have a draft smart contract, but it needs a careful review and a few modifications before going live. Once the code is solid, I want it deployed on Ethereum (that is my first choice, though I’m open to discussing BSC or Polygon if you feel they offer clear advantages). After deployment, the contract must be fully integrated into my website so users can interact with it through MetaMask. A smooth, reliable Web3 flow is essential—wallet connection, transaction signing, on-chain confirmations, and any UI feedback should feel seamless and secure. The job breaks down into three main parts: • Audit, adjust, and finalise the existing contract code, then compile, test, and verify it on the chosen network. • Deploy the verified contract and wire it up to the s...

I’ve built the backend of my project with and TypeScript, tying in Drizzle ORM for data access, for authentication, and express-session for state management. Before I push forward, I need an experienced full-stack developer to comb through the codebase and give me a frank, thorough assessment of its overall code quality. Your focus will be exclusively on the backend. I’m after insights on readability, maintainability, performance, security best practices, and any TypeScript typing issues you spot. Feel free to point out anti-patterns in middleware, routing, session handling, or ORM usage; I want practical recommendations I can act on straight away. Deliverables • A concise written report (Markdown or PDF) summarising strengths, weaknesses, and concrete improvement su...

We are looking for an experienced development agency to continue the development of our vehicle tracking application. Our previous developer has left the company, and we are now seeking a reliable and highly experienced team to take over the project. Project Overview The application is built with Vue.js (frontend) and Laravel (backend). The system uses Traccar as the backend engine for GPS position processing. The existing codebase is already developed and functional. Initial Scope of Work Set up the current source code in a proper development environment. Review and understand the existing architecture. Implement a series of small modifications and improvements. Ensure stability and continuity of the system. Requirements Strong and proven experience with Laravel and Vue.js. S...

Business Name: Score Predictor Concept: Mobile app where users predict football match scores, earn points, and win small cash prizes. Goal: Build MVP prototype with Premier League matches for testing, then expand to Championship, European competitions, and special jackpot games. Business Model: Users pay a small entry fee per round, £1 per round. Users can predict as many rounds as they wish; winners receive cash prizes. Revenue comes from entry fees and potential in-app advertising or sponsorship later. Backend: Connect to a football data API for live scores & league tables; scalable for future expansion.

This project entails building a generative-AI web application that runs entirely on OpenAI GPT and delivers a smooth, real-time, text-based chat experience. The frontend must be responsive so users on desktop or mobile feel no friction, while the backend handles dynamic prompts, keeps short-term conversational context, and lets me fine-tune how the model responds. Core functionality • Secure user authentication (log in / sign-up) • Drag-and-drop or button-based file sharing inside the chat window • Conversational memory so the AI remembers context during a session and resets cleanly when required Behind the scenes the app should: • Call the OpenAI GPT API efficiently, batching or streaming tokens where it makes sense to keep latency low • Store transien...

Laravel 12 Developer Needed to Develop Marketplace Platform (Reference Site Provided) We are looking for an experienced Laravel 12 developer to develop a complete marketplace platform based on our reference website. The frontend design must be 100% same as reference site, and the backend should include all required dashboards and management features. Payment gateway integration will be done using Razorpay. Project Requirements 1. Frontend 1.100% same design as reference website responsive payment integration booking & checkout system 2. Admin Dashboard Features (analytics & summary) Management Management 1. Admin can assign any package to any owner 4. Category & Subcategory (with image upload) 5. Package Management 6. Listing CRUD 1. Own...

We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...