Back-End Developer

Summary

Join our team as a Senior Back-End Developer in Prague! This full-time, long-term contract position requires fluency in English and Czech (German is a plus). You will build ETL pipelines, integrate data from various sources, review and improve codebases, identify and fix bugs, collaborate with cross-functional teams, and implement testing methodologies. The ideal candidate possesses a Computer Science degree, proven back-end development experience, and strong Python skills. This remote position offers the opportunity to work on challenging projects and contribute to a dynamic team.

Requirements

• A degree in Computer Science, Software Engineering or a related field
• Proven experience as a Back-end Developer
• Basic knowledge in ticketing system (e.g. Jira)
• Strong understanding of unit, integration, and end-to-end testing methodologies
• In-depth understanding of Python & ability to write well-structured, well-documented and easily accessible code
• Experience with relational database technologies such as MySQL
• Knowledge of modern AAA mechanisms (SSO) and security best practices
• Experience with version control systems (e.g. Git)
• Strong communication and teamwork abilities
• Team player, highly motivated and engaging nature, positively assertive
• Proficiency in written and spoken English

Responsibilities

• Build ETL-pipelines & integrate data from heterogenous sources like web-APIs and databases
• Review & improve current codebases and workflows and apply pythonic data-processing best-practices to them, e.g. by using Pandas
• Identify and fix bugs or performance bottlenecks in existing developed mechanisms
• Collaborate with cross-functional teams to gather requirements, design and deliver new features
• Implement unit, integration, and end-to-end testing to ensure code quality and reliability
• Develop and manage well-functioning databases and applications
• Integrate Python-based REST API and help to extend its features
• Troubleshoot and debug issues across the full stack
• Participate in code reviews and provide constructive feedback to peers
• Write technical documentation

Preferred Qualifications

• A strong attention to detail, problem solving skills, and a passion for delivering high-quality code
• Ability to explore, document and present new ideas or coding-approaches by harnessing Jupyter-notebooks
• Experienced in handling complex JSON-objects and applying jmespath to extract data from such
• Ability to work effectively in Agile cross-functional teams
• Adaptability to changing project requirements and priorities
• Experience with DevOps practices (CI/CD pipelines) and tools
• Familiarity with Django, Flask, or FastAPI frameworks
• Knowledge of cloud services and containers (preferably in GCP)