Looking for Senior (8+ years) Full-stack Developer (Back-end focused)

English B2+ A university degree in computer sciences.

💡Mandatory domain expertise in Finance and Insurance. Must understand financial logic and data integrity.

• 8+ years of experience in software development with a deep focus on Back-end architecture. • Expertise in PostgreSQL and raw SQL: Experience working without ORMs, managing migration-driven schemas, and implementing immutable double-entry ledgers. • Deep knowledge of Next.js 16 (App Router) and TypeScript: Proficiency in building scalable architectures using API route handlers and service layers in a Serverless environment (Vercel). • Strong experience with modern Frontend: React 19 and Tailwind v4 (without heavy state-management libraries). • Practical experience with Fintech integrations: Stripe payments, Auth.js (v5), and complex authentication (Passkeys, TOTP). • Hands-on experience with production infrastructure: AWS RDS, S3, Sentry/Axiom for observability, and GitHub Actions for CI/CD. • Commitment to testing: Proficient with Jest and Playwright for ensuring system reliability. • Architectural ownership: Ability to maintain and optimize a large-scale serverless backend (~160+ routes) and evolve it as it grows.

Will be a plus: • Experience with Java • Experience with AI/LLM integrations . • Knowledge of regulatory compliance and security standards in Fintech/Insurtech. • Experience with PDF generation (react-pdf / pdf-lib) and pluggable email provider layers. • Experience in early-stage startups, moving from MVP to production-grade systems. • Understanding of Node 24 features and modern web standard

Send CV, location and rate in DM

——— Контакт: @Pavel_5252 Компания: Mainsoft Сайт: Почта: Регион команды: Европа Регион работы: Европа

#lookfor #outstaff #longterm #NextJS #TypeScript #Fintech #PostgreSQL