Senior Backend Developer (Python/Django) to $7200

Senior Backend Developer (Python/Django; 100% remote)

• Salary: 23,400-25,500 PLN/month 
• 100% Remote
• Full-time position
• B2B or Contract of Employment 

We are looking for a Senior Backend Developer for a partner client with a compelling mission: they act as a product and technology partner for early-stage B2B SaaS founders, helping them navigate the crucial journey from launch to their first million in revenue. They essentially become the dedicated tech backbone for these startups.

Requirements:

• 5+ years of professional backend development experience.
• Extensive, proven experience with Python and the Django framework.
• Proficient in data modelling, relational and non-relational databases, and complex SQL queries.
• Strong experience with API design, integrations, and distributed systems (synchronous & asynchronous communication).
• Hands-on experience with Docker, Redis, message brokers, and cron jobs.
• Expertise in writing unit tests (e.g., Pytest) and a commitment to code quality and testing best practices.
• Great understanding of English with strong communication and collaboration skills.

Nice to have:

• Previous experience in Greentech or Ecotech is a significant plus.
• Experience as an unofficial tech lead or mentoring junior developers.
• Knowledge of additional testing methodologies (integration, end-to-end).

Responsibilities:

• Lead the design and development of complex server-side applications, APIs, and databases, taking ownership of architectural decisions.
• Architect, write, and deliver high-quality, scalable, and efficient code using Python and Django.
• Collaborate closely with cross-functional teams, including front-end developers and the tech lead, to align backend development with project goals.
• Architect and implement advanced user authentication, authorisation, and security mechanisms.
• Conduct performance analysis and optimisation, identifying bottlenecks and implementing solutions.
• Drive the implementation of automated testing and CI/CD processes to ensure code reliability.
• Establish and enforce coding standards, conduct thorough code reviews, and document backend architecture and APIs.
• Take responsibility for system reliability, scalability, and security, ensuring best practices.