Full Stack Engineer

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

About Us

Latent AI is a leading AI solutions implementation partner, dedicated to helping our diverse clients solve their most complex challenges with cutting-edge technology. Our strength lies in our small, agile, and expert teams who deliver bespoke AI and machine learning solutions. We foster a culture of collaboration, innovation, and deep technical excellence. As we grow, we are seeking a leader who is passionate about nurturing the talented individuals at the heart of our success.

About Us

Latent AI is a leading AI solutions implementation partner, dedicated to helping our diverse clients solve their most complex challenges with cutting-edge technology. Our strength lies in our small, agile, and expert teams who deliver bespoke AI and machine learning solutions. We foster a culture of collaboration, innovation, and deep technical excellence. As we grow, we are seeking a leader who is passionate about nurturing the talented individuals at the heart of our success.

Company Website: https://www.reachlatent.com/

The Role

We are looking for a senior full stack engineer to join the team and work on rebuilding and enhancing a modern web application. The role is hands‑on, covering both frontend and backend development, with a strong focus on quality, collaboration, and delivery.

The ideal candidate is comfortable working with modern JavaScript frameworks, rebuilding existing systems, and using AI‑assisted development tools effectively. This role suits someone who is proactive, communicates clearly, and can work independently while contributing as part of a close‑knit engineering team.

Our Tech Stack

• Frontend: Next.js, React 19, TypeScript, Tailwind v4, shadcn/ui
• Backend: tRPC, Prisma ORM, PostgreSQL, Supabase
• Background Jobs: Trigger.dev (TypeScript + Python)
• State & Data: Tanstack Query (React Query), Zustand, React Hook Form
• Auth: better-auth
• Testing: Vitest (unit/integration), Playwright (E2E)
• Monorepo: Turborepo + pnpm workspaces
• CI/CD: GitHub Actions

What You’ll Do

Project & Delivery

• Team Player: You will operate as part of a small team of full stack engineers who rebuild and maintain a full-stack web application (frontend & backend). Participate in technical discussions, reviews, and solution design.
• Proactive Ownership: A deep sense of accountability for your solutions, theproduct's quality, and its timely delivery. Own the planning and development of features of our Next.js/Node.js/Python platform.

Hands-On Technical Expertise

• Core Stack Mastery: Expert-level, hands-on ability with Next.js and TypeScript. You must be able to write production-grade code.
• Full-Stack Context: A strong grasp of the entire system, including the backend data-processing services (TypeScript) and databases (PostgreSQL).
• DevOps & CI/CD: Solid experience with DevOps principles and CI/CD pipelines. You must understand how to maintain and improve a fast, reliable, and automated path from code to production.
• Observability: Experience implementing or managing observability tools (e.g.,logging, monitoring, tracing) to understand system health, debug issues, andensure high availability.
• Technical Quality & Testing: A strong understanding of modern testing strategies (unit, integration, e2e) and a commitment to shipping high-quality, well-tested code.
• AI Adoption: Leveraging AI coding assistants wisely to enhance development efficiency while keeping production level quality.

Who You Are

• Technical Expert: Deep, hands‑on experience with Next.js, TypeScript, and full-stack systems.
• Strong Communicator: Fluent in English, with ability to communicate complex technical ideas clearly and confidently to both engineers and clients.
• Business‑Minded Engineer: You understand the “why” behind the code - connecting technical priorities directly to business outcomes.
• Problem Solver: You have the ability to make recommendations and contribute to the team technical discussions, constantly seeking ways to move forward, even when dealing with ambiguity.

Must

Role Requirements

• Minimum of 5+ years of experience as a full-stack engineer, specifically working with modern web applications.
• Expert-level, hands‑on ability with Next.js, React, and TypeScript.
• Deep experience with PostgreSQL and modern ORMs (we use Prisma).
• Experience with type‑safe APIs (tRPC or similar approaches).
• Experience with monorepo architectures (Turborepo, Nx, or similar).
• Familiarity with React state management (Tanstack Query, Zustand).
• Working effectively with AI coding agents to enhance productivity.
• Commitment to high-quality code, including strong understanding of modern testing strategies (unit, integration, e2e).
• Excellent written and verbal communication skills in English, capable of communicating complex technical ideas clearly.
• Proven ability to work independently, proactively own outcomes, and contribute effectively as part of a small, close‑knit team.

Advantage

• Experience with Tailwind CSS and modern component libraries (shadcn/ui).
• Experience with form libraries (React Hook Form or similar).
• Understanding of background job systems (Trigger.dev, or similar).
• Experience with E2E testing frameworks.
• Understanding and experience with DevOps principles and managing CI/CD pipelines.
• Experience implementing or managing observability tools (logging, monitoring, tracing).
• Experience with authentication systems.

Bonus Points

• Experience in a consulting or professional services environment.
• Prior exposure to AI, ML, or data-driven platforms.
• Familiarity with distributed teams and cross‑timezone collaboration.

Why Join Us?

This is a unique opportunity to shape the engineering culture at a growing AI services company. You'll have a direct impact on the careers of our talented engineers and play a pivotal role in our ability to deliver world‑class solutions to our clients. If you are a leader who believes that great technology is built by happy, empowered, and supported people, we would love to hear from you.