Senior Full-Stack Engineer, AI-Driven Platform (Warsaw)

TechTree; Warszawa; Hybrid; PLN 240,000 - 300,000; Full time

Job summary

TechTree is building an AI-native platform to modernize aerospace, electronics, industrial and defense supply chains. We seek a seasoned Full-Stack Engineer to design, build, and maintain features end to end, from schema to UI, collaborating with the platform and field teams to integrate with legacy ERP and email-driven workflows.

You will ship real products, work with TypeScript and frontend frameworks, and autonomously handle complex SQL tasks.

Qualifications

• 5+ years of genuine full-stack experience.
• Have shipped real full-stack products (GitHub repo, live app, or Loom walkthrough).
• Strong in TypeScript and at least one frontend framework (React, Svelte, Next, etc.).
• Comfortable in SQL, preferably Postgres; can write, optimize, and debug complex queries.

Responsibilities

• Design, build and maintain features end to end, from schema to UI.
• Run several projects in parallel and ship each one.
• Collaborate with platform team and forward deployed engineers to integrate with legacy ERPs.

Skills

Full-stack experience

TypeScript

Frontend framework

SQL/Postgres

AI coding tools

Fluent English

Shipping real products

Tools

GitHub

Job description

TechTree is building an AI-native platform to modernize aerospace, electronics, industrial and defense supply chains. We seek a seasoned Full-Stack Engineer to design, build, and maintain features end to end, from schema to UI, collaborating with the platform and field teams to integrate with legacy ERP and email-driven workflows.

You will ship real products, work with TypeScript and frontend frameworks, and autonomously handle complex SQL tasks.