Full-Stack .NET & Angular/React Engineer (AI‑Driven)

SINGU; Kraków; On-site; PLN 120,000 - 180,000; Full time

Job summary

SINGU is seeking a Full Stack Developer to join our product team in Kraków. You will contribute across backend architecture and customer-facing interfaces, collaborating with a Team Lead, Product Manager, and Product Designer to deliver high-quality software.

You will participate in code reviews, uphold testing practices, and use AI-assisted tools to accelerate development while maintaining code quality, security, and performance.

Qualifications

• Solid hands-on experience with .NET and C#.
• Experience building interfaces in Angular/React and TypeScript.
• Experience designing REST APIs and working with PostgreSQL.
• A genuine testing habit — unit and integration tests as standard practice.
• Comfort participating in code reviews and giving direct, useful feedback.
• Practical experience with AI-assisted development tools, and the judgment to critically assess what they produce.
• Good command of English and strong collaboration skills within a cross-functional team.

Responsibilities

• Backend Development: Build and evolve backend applications in .NET 10 and C# 14; design REST APIs; optimize PostgreSQL structures.
• Frontend Development: Build interfaces in Angular/React and TypeScript; participate in frontend rewrite; ensure performance and maintainability.
• Quality & Testing: Emphasize unit and integration tests; participate in code reviews; write clean, secure code.
• AI-Assisted Development: UseCursor or Claude Code to accelerate development; evaluate AI-generated code for correctness, security, and performance before shipping.
• Delivery & Collaboration: Work in GitHub and CI/CD; collaborate with Team Lead, Product Manager, and Product Designer; participate in Agile ceremonies; share knowledge.

Skills

NET

C#

Angular

React

TypeScript

REST APIs

PostgreSQL

Testing

Code reviews

AI-assisted development

English

Collaboration

Tools

GitHub

CI/CD

Cursor

Claude Code

Job description

SINGU is seeking a Full Stack Developer to join our product team in Kraków. You will contribute across backend architecture and customer-facing interfaces, collaborating with a Team Lead, Product Manager, and Product Designer to deliver high-quality software.

You will participate in code reviews, uphold testing practices, and use AI-assisted tools to accelerate development while maintaining code quality, security, and performance.