Strong Middle Full-Stack Engineer

We're looking for a Full-Stack Engineer to join a product team building a FinTech SaaS platform. The role involves working across frontend and backend with TypeScript, React, Next.js, Node.js, PostgreSQL, Supabase, Tailwind CSS, Vercel. The engineer will take ownership of features from development through production.

• Build and enhance product features across frontend and backend
• Develop and maintain APIs and server-side functionality
• Work with PostgreSQL and data-intensive application logic
• Integrate third-party APIs, OAuth providers, and webhooks
• Contribute to authentication, authorization, and multi-tenant functionality
• Work with AI/LLM-powered product features and integrations
• Troubleshoot production issues and improve application reliability
• Take ownership of features throughout the full development lifecycle

• Strong commercial experience with TypeScript, React, and Next.js
• Solid full-stack development background
• Strong experience with PostgreSQL
• Experience with Supabase or a similar PostgreSQL + authentication stack
• Experience building and maintaining REST APIs
• Good understanding of authentication, authorization, and permissions
• Experience with multi-tenant SaaS applications
• Hands-on experience integrating third-party APIs, OAuth, and webhooks
• Experience working with an established production SaaS product
• Ability to understand and confidently work within an existing codebase
• Strong ownership mindset and ability to work independently
• English B2

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere.