Job Description

Responsibilities

• Design the architecture of backend services for a new product: from stack selection to data schema.
• Develop APIs, authorization systems, payment integrations, and subscriptions — hands-on, not just on paper.
• Set up and maintain infrastructure: CI/CD, cloud services, monitoring, deployment.
• Integrate LLM API (Gemini / OpenAI) into products, control inference costs.
• Conduct code reviews for the mobile part (React Native) and mentor a React Native developer.
• Iterate quickly: done > perfect, improvements after launch.
• Present technical solutions and results to the CEO and stakeholders.

Requirements

• Experience in designing and hands-on developing APIs in Python 3.12+ (FastAPI).
• Proficient with PostgreSQL + Redis — schemas, migrations (Alembic), caching.
• Experience with GCP / AWS — Cloud Run, Cloud SQL, IAM, Terraform.
• Set up CI/CD pipelines: Docker, GitHub Actions, Fastlane.
• Understanding of authorization and payments: JWT / OAuth2, Stripe API + webhooks, RevenueCat.
• Experience integrating LLM API (Gemini / OpenAI) and understanding inference costs.
• Familiarity with mobile development (React Native) at the code review level.
• Experience with background tasks and push notifications: Celery + RabbitMQ/Redis.
• Write tests (pytest).
• Driven and autonomous: ready to handle the entire backend independently without waiting for instructions.
• Able to prioritize, launch, and improve on the go — speed and pragmatism.
• Actively use AI tools in daily work (Claude Code, Cursor).
• Willingness to take on technical leadership: code reviews, mentoring, establishing processes as the team grows.
• Fluent in Russian, English B2+ (documentation, API, communication with the team).

Benefits