Senior Full-Stack Engineer - Lead AI Web Apps (Next.js)

Latent AI; Poland; On-site; PLN 180,000 - 280,000; Full time

Job summary

Latent AI is seeking a senior full stack engineer to rebuild and enhance a modern web application. You will work hands-on across frontend and backend, with a focus on quality, collaboration, and delivery.

The ideal candidate excels with Next.js, TypeScript, PostgreSQL, and modern tooling, and embraces AI-assisted development. You’ll contribute in a small, close-knit engineering team while communicating clearly in English.

Qualifications

• 5+ years of experience as a full‑stack engineer working on modern web apps.
• Expert level with Next.js and TypeScript.
• Deep experience with PostgreSQL and modern ORMs (Prisma).
• Experience with type-safe APIs (tRPC) and monorepos (Turborepo/Nx).
• Familiarity with Tanstack Query, Zustand, and React state management.
• Comfort working with AI coding assistants to boost productivity.

Responsibilities

• Operate as part of a small team of full‑stack engineers to rebuild and maintain a full‑stack web application.
• Own planning and development of features on the Next.js/Node.js/Python platform.
• Write production-grade code with a strong focus on quality and delivery.
• Contribute to solution design, code reviews, and technical discussions.

Skills

Next.js

TypeScript

React

Full-stack

CI/CD

Observability

AI coding

English comms

Tools

Prisma ORM

PostgreSQL

tRPC

Turborepo

Nx

Pnpm

Playwright

Vitest

Tailwind CSS

shadcn/ui

React Hook Form

Job description

Latent AI is seeking a senior full stack engineer to rebuild and enhance a modern web application. You will work hands-on across frontend and backend, with a focus on quality, collaboration, and delivery.

The ideal candidate excels with Next.js, TypeScript, PostgreSQL, and modern tooling, and embraces AI-assisted development. You’ll contribute in a small, close-knit engineering team while communicating clearly in English.