Middle Full-Stack Developer (AI Native)

The role

The Middle Full-Stack Developer will develop and maintain product features on the frontend and backend. They will design APIs, work with databases, and implement product roadmaps using an AI Native approach.

What you will do

• Develop and maintain product features on frontend and backend
• Design, develop and integrate APIs and work with databases
• Launch new product capabilities according to technical requirements and product priorities
• Design architecture and choose technical solutions for scaling
• Optimize application performance, stability and reliability
• Find and fix technical issues through debugging and refactoring
• Write clean and maintainable code
• Implement product roadmap with Head of Product, designer and engineers
• Conduct technical planning, task estimation and decomposition
• Maintain and improve CI/CD and technical infrastructure

Required qualifications

• Commercial experience as a Full-Stack Developer from 2 years
• TypeScript in production and on backend (Node.js: REST/GraphQL, queues, background tasks)
• TypeScript on frontend (React / Next.js)
• Data design in SQL and NoSQL (Firestore or analog): schemas, indexes, security rules
• Experience with GCP or AWS: deploying and maintaining services (Cloud Run/Functions, CI/CD, logs, alerts)
• Integrations with third-party APIs (payments and subscriptions, analytics, webhooks) with idempotency and error handling
• Ability to independently lead a feature from idea to production: decomposition, implementation, tests, release, monitoring
• Deep use of AI tools (AI Native approach)

Nice to have

• Experience with LLM API (Claude or OpenAI): tool use, RAG, evals
• Product analytics: Amplitude, RevenueCat
• React Native or experience in mobile products on subscriptions

Benefits

• Fast professional growth
• Compensation for professional training and language learning including Ukrainian
• Work from home, office in Kyiv or Lviv, or abroad
• Office includes generators, shelters, lunches, and snacks
• Equipment and services needed for work
• 20 days of vacation plus official holidays
• Unlimited sick leaves
• Compensation for sports
• Medical insurance in Ukraine (after probation)
• Corporate doctor services
• Mental health support

About the company

HOLYWATER TECH is a technology company that creates entertainment products at the intersection of human creativity and artificial intelligence. Their ecosystem includes My Drama, My Passion, and My Muse.