Backend Engineer

• Design, build and deploy Python-based data products, services and applications
• Develop robust ETL pipelines in Databricks for risk, exposure and modelling data
• Translate complex business rules and calculation logic into clear, maintainable and tested code
• Build APIs and integration services for real-time, near-real-time and batch data use cases
• Design and optimise data models, Delta tables and Lakehouse workflows
• Improve pipeline and service performance, scalability, reliability and cost efficiency
• Implement data validation, monitoring, logging, alerting and automated testing
• Troubleshoot complex data and production issues, identify root causes and deliver sustainable fixes
• Apply software engineering practices, including Git, CI/CD, code reviews and technical documentation
• Work closely with data engineers, architects, technology teams and business stakeholders
• Share knowledge and build reusable components to reduce dependencies on key individuals

Python Developer

• Own end-to-end data extraction workflows across complex websites
• Ensure complete coverage, accuracy, and reliable delivery of structured datasets
• Use available tools and custom workflows to accelerate data collection, validation, and task execution
• Extract data reliably from dynamic and interactive web sources, adapting to JavaScript-rendered content and changing site behavior
• Enforce data quality through validation checks, cross-source consistency controls, formatting specifications, and systematic verification
• Scale scraping operations for large datasets using efficient batching or parallelization
• Monitor failures and maintain stability against minor site structure changes
• Utilize tools such as Apify, OpenRouter, and other technologies

Senior Python Data Scraping Engineer – Freelance

• Own end-to-end data extraction workflows across complex websites, ensuring complete coverage, accuracy, and reliable delivery of structured datasets
• Leverage available tools and custom workflows to accelerate data collection, validation, and task execution while meeting defined requirements
• Ensure reliable extraction from dynamic and interactive web sources, adapting approaches for JavaScript-rendered content and changing site behavior
• Enforce data quality standards through validation checks, cross-source consistency controls, formatting specifications, and systematic verification before delivery
• Scale scraping operations for large datasets using efficient batching or parallelization
• Monitor failures and maintain stability against minor site structure changes
• Handle specialized data scraping workflows for real-world applications within the Tendem project using tools such as Apify, OpenRouter, and other technologies

Senior Python Data Scraping Engineer

• Build and launch experiences for new live casino games, including statistics, big wins, and betting strategy trackers
• Develop features across the React and Next.js platform
• Make thoughtful choices about rendering, state, and performance
• Own the speed and Core Web Vitals of key pages
• Address performance and SEO for organic traffic
• Work with APIs and live data feeds, including unpredictable third-party data
• Partner with Product, Content, SEO, and Analytics teams
• Use AI tools to explore ideas, solve problems, and move faster while remaining accountable
• Build, release, and help run the product with the team
• Build new game trackers and product features and improve high-traffic pages

Frontend Developer – Node.js, React

• Develop and maintain automated backend/API tests
• Test backend services and analyze results
• Maintain test plans, test cases and documentation
• Identify and track defects
• Collaborate with developers, TechOps and other teams
• Contribute to testing and quality processes

Backend Engineer jobs in Slovakia

Python Developer

Senior Python Data Scraping Engineer – Freelance

Senior Python Data Scraping Engineer

Frontend Developer – Node.js, React

Senior AQA Engineer, Python