Senior Backend Engineer (Python/Django)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Backend Engineer (Python/Django) based in Poland.

Join a fast-growing, international technology environment where your backend expertise will directly support a global connectivity platform. You will build and scale high-performance APIs and mission-critical microservices used by millions of travelers worldwide. The role combines hands-on backend engineering with software architecture responsibilities, particularly around operations, automation, and scalability. You will help strengthen engineering quality through testing, code reviews, documentation, and modern development practices. Working closely with Product and QA teams, you will turn complex business requirements into resilient and maintainable solutions. You will also have the opportunity to tackle technical debt and performance challenges in a high-load environment. This is a fully remote role within a collaborative, international team that values continuous improvement, knowledge sharing, and autonomy.

Accountabilities

• Build, maintain, and optimize mission-critical microservices using Python, Django, and Django REST Framework (DRF).
• Design and develop scalable APIs capable of supporting high-concurrency traffic and significant usage peaks.
• Contribute to software architecture, with a particular focus on operations, automation, resilience, and scalable engineering practices.
• Establish and maintain strong quality frameworks through comprehensive unit testing with Pytest and automated quality checks.
• Identify and resolve technical debt, performance bottlenecks, inefficient database queries, N+1 problems, and asynchronous processing issues.
• Design and implement microservices that integrate effectively with complex third-party systems and services.
• Improve application performance and reliability through profiling, optimization, and appropriate asynchronous programming techniques.
• Work closely with Product, QA, and other engineering stakeholders across international teams to translate business requirements into maintainable technical solutions.
• Champion software engineering best practices across the development lifecycle, including design patterns, technical documentation, code reviews, and maintainability.
• Contribute to continuous improvement and automation initiatives, helping create efficient and scalable development and operational processes.
• Act as a technical reference for backend engineering and contribute strategic thinking while remaining hands-on with implementation.

Requirements

• 5+ years of professional backend development experience, with strong expertise in Django and Django REST Framework.
• Advanced proficiency in Python, with a solid understanding of backend architecture and production software development.
• Proven experience designing and building microservices architectures and integrating complex third-party applications or ecosystems.
• Strong experience with unit testing and quality-first development practices, including Pytest or comparable testing frameworks.
• Practical experience with asynchronous programming and optimizing high-load database queries.
• Demonstrated ability to identify performance issues and improve application efficiency, scalability, and reliability.
• Strong understanding of API design, software architecture, design patterns, and maintainable code practices.
• Experience working with code reviews, technical documentation, automated quality checks, and modern software development processes.
• Excellent professional English skills (C1 minimum) for effective communication in an international, distributed environment.
• Strong collaboration and communication skills, with the confidence to express technical ideas clearly and contribute constructively to team decisions.
• Strategic mindset combined with a hands-on approach and a willingness to take ownership of technical challenges.
• Spanish fluency or professional working proficiency is a plus.
• Experience with Silk or other application performance profiling tools is an advantage.

Benefits

• 100% remote-first working environment with flexible hours.
• Opportunity to work on a high-impact global connectivity platform serving millions of users.
• A technically challenging role with significant influence over architecture, scalability, automation, and engineering quality.
• International and diverse team with colleagues working remotely across multiple locations.
• Collaborative culture focused on continuous improvement, knowledge sharing, and strong engineering practices.
• Opportunity to contribute to a rapidly scaling technology business and see the direct impact of your technical decisions.
• Supportive environment that values teamwork, learning, autonomy, and professional growth.