SQL Developers para contratar en Poland
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Freelancers patrocinados
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My name is Mateusz Zdrenka. I am 34 years old, and I live in Szczecin, Poland. I have a master's degree in Computer Science and Econometrics. Above that, I also have a postgraduate degree in Data Science. I have very rich experience with database administration and database programming. For more than 7 years I have...My name is Mateusz Zdrenka. I am 34 years old, and I live in Szczecin, Poland. I have a master's degree in Computer Science and Econometrics. Above that, I also have a postgraduate degree in Data Science. I have very rich experience with database administration and database programming. For more than 7 years I have been working as a SQL Developer / Database Administration for various companies. The most experience I have is with a PostgreSQL database. I worked as a PostgreSQL Database Administrator /SQL Developer for about 6 years in the company which provides iGaming industry solutions. I was responsible of more than 100 PostgreSQL clusters. Including production, test and RC environments. Most databases were several hundred GB and the largest reached 1.5TB. My daily duties included: - Installation and configuration of new PostgreSQL clusters. - Creation of database replication - streaming and logical. - Routinely checking that all databases are working properly. Including the fallowing: keeping an eye on monitoring (Zabbix plus our internal solution), responding to alerts, maitanace of monitoring (adding new things to monitoring and improving current ones), routinely checking of databases logs, catching and optimizing slow queries. - Maintenance of existing PostgreSQL clusters. Including the fallowing: changing the databases' configurations, creating new databases' replications. - Maintenance of existing PostgreSQL databases. Including the fallowing: maintenance of database indexes, tables, views, functions, procedures and triggers. - Creation of new databases objects such as: tables, views, procedures, functions, indexes and triggers. - Creating new and maintenance existing reports. Above that, I have a lot of experience as a SQL Developer with BigQuery and Snowflake databases. I also know Databricks and DBT - I was creating repots for the USA iGaming market regulators using these tools. My strengths are analytical thinking, good work organisation, focus on solving problems, and personal development. Professionally I am interested in Big Data and Data Science, so I think that will be the direction of my development. My hobby is astronomy, ancient history and travel. I hope you liked my profile, please do not hesitate to contact me. Best regards. menos
Contratar mrowa890
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As a versatile and skilled web developer, I possess expertise in a wide range of technologies and frameworks, including CSS, PHP, HTML, JavaScript, Python, and Node.js. My proficiency extends to frameworks such as Laravel, Django, and Express.js, allowing me to build robust and scalable web applications tailored to...As a versatile and skilled web developer, I possess expertise in a wide range of technologies and frameworks, including CSS, PHP, HTML, JavaScript, Python, and Node.js. My proficiency extends to frameworks such as Laravel, Django, and Express.js, allowing me to build robust and scalable web applications tailored to client requirements. With a solid foundation in database management, I excel in SQL/MySQL and possess the ability to design and optimize databases for efficient data storage and retrieval. My technical skills extend beyond web development to encompass troubleshooting across various domains, including database, web, network, and software. I am proficient in administering complex systems, including Active Directory, Windows Server 2019, and Linux environments. My dedication and commitment to excellence drive me to deliver high-quality solutions within stipulated timelines, ensuring client satisfaction and project success. I approach every task with courage, engagement, and a strong work ethic, striving to exceed expectations and consistently deliver results. With a passion for problem-solving and a knack for innovation, I thrive in challenging environments and relish the opportunity to tackle new and exciting projects. menos
Contratar MamyMartin
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Seasoned IT professional with a comprehensive background in leading projects from initial concept through successful implementation. With over 8 years of hands-on experience in the Web Full-Stack Development (Especially strong at Back-End Side), proficient in various Programming Language such as PHP, JavaScript, C#...Seasoned IT professional with a comprehensive background in leading projects from initial concept through successful implementation. With over 8 years of hands-on experience in the Web Full-Stack Development (Especially strong at Back-End Side), proficient in various Programming Language such as PHP, JavaScript, C# and etc. Proficient in leveraging diverse technical expertise to enrich brainstorming discussions and generate innovative solutions to complex challenges, and actively participated to drive the success of project Programming Languages : C++ C# PHP Python JavaScript TypeScript jQuery SCSS SASS Front-End : React.js Next.js Vue.js Nuxt.js HTML5 CSS Tailwind CSS Back-End : Laravel Node.js Express.js Django ASP.NET MVC ASP.NET CORE Database : MySQL PostgreSQL MS SQL MongoDB Oracle Others : GraphQL Github / GitLab / BitBucket NPM Docker Agile Scrum REST API RESTful API Docker WebPack JIRA Trello Kafka Jest / Karma menos
Contratar mariusz238
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We develop web applications with different technologies, approaches, and frameworks since 2018 on the territory of Poland. Head of the company has been a programmer since 2000. Backends: 1) java 8/11/17, RxJava, ORM, JPA/Hibernate, Guice, Spring Boot, Lombok, REST, Event Bus, JUnit, Kafka, Design Patterns, SOLID,...We develop web applications with different technologies, approaches, and frameworks since 2018 on the territory of Poland. Head of the company has been a programmer since 2000. Backends: 1) java 8/11/17, RxJava, ORM, JPA/Hibernate, Guice, Spring Boot, Lombok, REST, Event Bus, JUnit, Kafka, Design Patterns, SOLID, Nifi/Mule, XSLT, much more; 2) nodejs, express, typescript, nest, Mongoose, Redis, RabbitMQ; 3) docker, Kubernetes (k8s), Jenkins, github actions, Terraform, AWS/Azure/GCP; 4) REST, websockets, SSE, SOAP, sockets. 5) VertX, Tomcat, Glassfish, JBOSS/WildFly, Jetty, nginx; 6) any RDBMS, MongoDB, CouchBase, DynamoDB; 7) bash, ssh, git Frontend: Angular, React, Redux, Vue, jQuery, HTML, CSS, Swing, Java Applets, Ember, Bootstrap, ExtJS, Cordova, Ionic. Goals: - projects into my company; - $33/h net. Conditions: we are small company and our developers work in convenient offices in city of Chelm, Poland, we also support relocation to Poland menos
Contratar mercuriev