Senior .NET & Angular Full‑Stack Engineer

SINGU; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

SINGU is seeking a Full Stack Developer to join our product team and contribute across backend architecture and customer-facing interfaces. You’ll collaborate with the Team Lead, Product Manager, and Product Designer to build reliable, secure, high-quality software.

As part of the team, you’ll participate in code reviews, uphold strong testing practices, and effectively use AI-assisted development tools like Cursor or Claude Code.

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 and C#; design REST APIs and optimize queries.
• Frontend Development: Create interfaces in Angular/React and TypeScript; contribute to frontend rewrite.
• Quality & Testing: Embrace unit and integration tests; participate in code reviews; write secure, maintainable code.
• AI-Assisted Development: Use AI tools to accelerate development and refactor code; assess AI output for quality and security.
• Delivery & Collaboration: Work with GitHub and CI/CD; collaborate with Team Lead, PM, and Designer; participate in Agile ceremonies.

Skills

.NET & C#

Angular/React

TypeScript

REST APIs

PostgreSQL

Testing

Code reviews

AI tools

English

Team collaboration

Tools

GitHub

CI/CD

Cursor/Claude Code

Job description

SINGU is seeking a Full Stack Developer to join our product team and contribute across backend architecture and customer-facing interfaces. You’ll collaborate with the Team Lead, Product Manager, and Product Designer to build reliable, secure, high-quality software.

As part of the team, you’ll participate in code reviews, uphold strong testing practices, and effectively use AI-assisted development tools like Cursor or Claude Code.