Mid/Senior Fullstack Developer (Java 21+ / Angular 22+) — Insurance

TechTree; Kraków; Hybrid; PLN 167,000 - 279,000; Full time

Benefits offered by this job

Private medical care

Multisport card

Training/conference budget

Job summary

TechTree is seeking a Mid/Senior Fullstack Developer for an Insurance-focused project. The role combines Java/Spring Boot backend with Angular (TypeScript) frontend in a hybrid setup across Poland: Kraków, Gdańsk, Łódź, Poznań.

Join an AI-driven environment using Spec Driven Development to deliver enterprise-grade platforms handling millions of operations monthly. English proficiency required; Polish basics are a plus.

Qualifications

• Proficient in Java/Spring Boot and building interfaces with Angular (TypeScript).
• English B2+ required; Polish A1/A2 is acceptable.
• Open to AI-assisted programming and Spec Driven Development.

Responsibilities

• Develop proprietary insurance products for Polish and international markets.
• Design, analyze, and implement solutions based on business requirements.
• Build Angular (TypeScript) interfaces alongside backend work in Java/Spring Boot.

Skills

Java/Spring Boot

Angular (TypeScript)

English (B2+)

Polish (A1/A2)

AI-assisted programming

Job description

This is a role that TechTree is recruiting for on behalf of one of our clients.

TechTree is an AI-driven recruitment platform working with high-growth companies.

When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles.

Mid/Senior Fullstack Developer (Java 21+ / Angular 22+) — Insurance — Real AI in day-to-day coding, Spec Driven Development. Hybrid, Poland (Kraków / Gdańsk / Łódź / Poznań).

We're building an international team creating and developing proprietary, scalable Enterprise-class platforms for the global insurance sector, handling millions of operations a month across the full policy lifecycle and claims settlement.

AI here is a daily work tool — the team runs on Spec Driven Development, using AI agents for technical documentation, task specs, technical planning, and verification/testing, in an ecosystem integrated with Google Workspace AI.

What You’ll Do

• Develop proprietary insurance products for Polish and international markets
• Design, analyze, and implement solutions against business requirements
• Build interfaces with Angular (TypeScript) alongside backend work in Java/Spring Boot

What We’re Looking For

• Strong Java/Spring Boot experience and confidence building interfaces with Angular (TypeScript)
• English at B2 level or higher, Polish at A1/A2 level
• Openness to AI-assisted programming (Spec Driven Development)

Up to 25,000 PLN gross (UoP) or B2B equivalent, plus private medical care with Allianz, a Multisport cafeteria package, and an individual training/conference budget.

What is TechTree?

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Our AI Agent

Gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's genuine alignment, not just keyword overlap.

Our Human Team

Is there to support you through the process — answering questions, adding context, and making sure you're never left guessing or ghosted.

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