Senior Python Backend Developer

Senior Python Backend Developer

🏢Web Design Sun - Spain | 🌍 Remote

We are looking for a Senior Python Backend Developer :rocket:

💼 Responsibilities: — Design scalable, high-load, and distributed systems — Develop and maintain both monolithic and microservice-based architectures — Collaborate closely with PM, DevOps, ML teams and QA — Make and justify architectural decisions and trade-offs — Ensure technical quality, maintainability, and reliability of backend systems — Take ownership of backend development across projects at different maturity stages — Perform code reviews and support less experienced developers through mentoring and knowledge sharing — Contribute to continuous improvement of engineering practices and system architecture

🧠 Requirements: — 3+ years of commercial experience in Python — Deep understanding of System Design and high-load distributed systems — Solid understanding of architectural trade-offs in real-world applications — Good knowledge of algorithms and data structures, including complexity analysis — Hands-on experience with Django + DRF and FastAPI + SQLAlchemy — Experience with PostgreSQL, Amazon RDS, Redis, and ElastiCache — Experience with both monolithic and microservice architectures — Strong ownership, responsibility, and proactive mindset — Ability to work effectively across multiple products and services — English — B2+, Ukrainian/Russian — C1+/Native — Residence outside Russia, Belarus & Ukraine

💫 Nice to have: — Experience with cloud environments and distributed systems — Previous mentoring or technical leadership experience — Continuous learning mindset and participation in courses or self-development initiatives — Experience working closely with ML and DevOps teams

🎁 We offer: — Fully remote, full-time — Flexible schedule with a strong focus on results and team collaboration — Competitive compensation: $17–22/hour ($2700-3500) — B2B cooperation preferred, other cooperation formats can be discussed — 20 paid vacation days + 5 sick days + additional days off — Opportunity to work on international SaaS, CRM/ERP, Web & Cloud products — Challenging engineering tasks and a collaborative environment — Career growth opportunities and ownership of technical decisions