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Sii Sp. z o.o.

Senior Fullstack Developer Java with Angular (f/m/x)

Sii Sp. z o.o. Show all offers
B2B
Hybrid
Senior
Łódź
Warszawa
Expires Oct 11, 2026
10 days ago

In short

Senior Full Stack Java Developer with Angular needed for hybrid role in Łódź. Responsibilities include backend/frontend development, software design, testing, and documentation. Requires 5+ years of experience, strong Java/Spring & Angular skills, English fluency, and Polish residency.

Keywords

Java Spring Framework Angular Backend Development Frontend Development API Development Testing CI/CD Agile SQL

AI-written summary based on the listing content.

Technologies we use

About the project

Your responsibilities

  • Developing backend and frontend components of the application
  • Designing, developing, and maintaining high-quality, secure, and scalable software solutions
  • Analysing business requirements and translating them into technical solutions
  • Optimizing and refactoring existing codebases to improve stability, efficiency, and readability
  • Supporting software integration and configuration activities
  • Defining and executing testing strategies to ensure software reliability and quality before release
  • Maintaining and updating technical documentation to reflect system changes and improvements
  • Engaging in technical discussions and contributing to solution design
  • Collaborating effectively with colleagues across different teams and locations

Our requirements

  • At least 5 years of experience as a Full Stack Java Developer with Angular
  • Strong skills in Java and Spring Framework for backend development
  • Solid experience with Angular (latest versions preferred) for frontend development
  • Strong knowledge of software design principles, secure coding practices, and API development
  • Familiarity with testing frameworks and CI/CD pipelines
  • Proficiency in creating technical designs, test cases, and conducting code reviews
  • Good understanding of Agile methodologies
  • Fluency in English, both written and spoken
  • Openness to commuting to the office in Warsaw 2 days a week
  • Fluent Polish required
  • Residing in Poland required

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

This is how we work on a project

Published 2026-09-11
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