Middle Python Developer 4
Middle Python backend developer at Geniusee working on enterprise AI infrastructure for a US/EU fintech-startup client: building async Python/FastAPI services with heavy PostgreSQL work, using AI coding assistants daily, and communicating directly with the client's technical founders. Remote worldwide or from Kyiv/Lviv/Warsaw offices.
- Compensation
- Not disclosed
- Location
- Not listed
- Work setup
- Remote
- Seniority
- Middle
- Employment
- Not specified
- Experience
- Not specified
- Category
- Software engineering
- Posted
Skills
Must have
- 3+ years of commercial experience as a Python Backend Developer (FastAPI / async preferred)
- Strong PostgreSQL: data modeling, SQL, indexing, query planning, transactions, performance tuning
- Systems fundamentals: Linux, networking basics, concurrency, profiling, debugging, memory, scalability
- Architecture judgment: maintainable code, testing, observability, deployment best practices
- End-to-end ownership & clear direct communication with technical founders
- Daily use of AI coding assistants (Claude Code / Codex / Cursor) with strong review habits
- English level: Upper-Intermediate (B2) or higher
Nice to have
- MCP / AI agents / agent observability / AI memory
- Identity management (e.g. Entra ID, OAuth2, OIDC)
- Kubernetes, Docker, Cloud (AWS / GCP / Azure)
- Go (CLI tooling / microservices)
- React + TypeScript / Node.js
Full description
At Geniusee, we help businesses thrive through technology partnerships and strengthen the engineering community by sharing knowledge and creating opportunities
We live by our values: Continuous Growth, Team Synergy, Taking Responsibility, Conscious Openness, and Result-Driven Mindset. Here, you’ll find a safe, inclusive, and supportive environment where your voice is heard, and feedback is welcome
Whether you want to work from home or from our offices in Kyiv / Lviv / Warsaw with stable electricity and Wi-Fi, we’ve got you covered.
Join us and make an impact
About the Role:
Our client is a fast-growing US/EU startup building enterprise AI infrastructure for financial institutions.
Requirements:
- 3+ years of commercial experience as a Python Backend Developer (FastAPI / async preferred);
- Strong PostgreSQL: data modeling, SQL, indexing, query planning, transactions, performance tuning;
- Systems fundamentals: Linux, networking basics, concurrency, profiling, debugging, memory, scalability;
- Architecture judgment: maintainable code, testing, observability, deployment best practices;
- End-to-end ownership & clear direct communication with technical founders;
- Daily use of AI coding assistants (Claude Code / Codex / Cursor) with strong review habits (understands the code, no "AI slop").
- English level: Upper-Intermediate (B2) or higher.
Nice to have:
- MCP / AI agents / agent observability / AI memory;
- Identity management (e.g. Entra ID, OAuth2, OIDC);
- Kubernetes, Docker, Cloud (AWS / GCP / Azure);
- Go (CLI tooling / microservices);
- React + TypeScript / Node.js.
What will you get:Career growth & projects
- Competitive salary based on your skills and experience, and a benefits package.
- Regular performance appraisals to support your career development.
- Professional development support: online courses, certifications, and study compensation (including English courses).
- A modern tech stack across challenging, long-term projects.
Health & well-being
- Paid vacation (18 working days), public holidays (11 days), and sick leave (15 days).
- VIP medical insurance or sports coverage.
Work environment & flexibility
- Remote work from anywhere in the world or in one of our offices in Kyiv, Lviv, or Warsaw.
- Necessary equipment to perform your work.
Culture & community
- A collaborative and open culture where contributions are recognized.
- Regular corporate online & offline activities.