Aktualne oferty pracy związane z Senior Java Software Engineer – AI-Driven Modernisation - Toruń kujawskopomorskie, kujawsko-pomorskie - Sii Sp. z o.o.


  • Tczew, pomorskie, pomorskie, Polska Thales Pełny etat

    IT Applications and Systems EngineerMiejsce pracy: TczewTechnologies we useExpectedSQLPythonOraclePowerShellOperating systemWindowsLinuxAbout the projectWe are looking for a knowledgeable and detail-oriented System and Application Administrator to manage, support and develop our IT systems and applications. The ideal candidate will be responsible for...


  • Toruń, Polska Sii Sp. z o.o. Pełny etat

    Senior Java Software Engineer – AI-Driven Modernisation Miejsce pracy: Toruń Technologies we use Expected Java AI LLM GitHub Copilot Claude Code About the project We’re building a next-generation technology team focused on modernising critical financial services through AI-first engineering. You’ll play a key role in transforming complex legacy...

  • Senior Software Engineer

    5 godzin temu


    Toruń, Polska Allegro Pełny etat

    Senior Software Engineer (Java / Kotlin) Miejsce pracy: Toruń Technologies we use Expected Kotlin Java Spring Boot MongoDB Optional Elasticsearch About the project Flexible working hours in an office first model (4/1) that depend on you and your team. Starting later or finishing earlier? No problem! Work hours keep pace with our lifestyles and can start...

  • Senior Engineer

    5 godzin temu


    Toruń, Polska Allegro Pełny etat

    Senior Software Engineer (Java / Kotlin) Technologies we use Kotlin Java About the project Flexible working hours in an office first model (4/1) that depend on you and your team. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): - This is high-availability, high-performance engineering...


  • Gdańsk, pomorskie, Trójmiasto, Polska Addepto Pełny etat

    Senior/Lead Software EngineerMiejsce pracy: GdańskTechnologies we useExpectedJavaOracleKafkaKubernetesWebLogic ServerDDDRESTfull APIMicrosoft AzureOperating systemWindowsmacOSAbout the projectWe are looking for a visionary and hands-on Senior/Lead Software Engineer to design and guide the implementation of robust, scalable, and secure software solutions....

  • Software Engineer 1

    5 godzin temu


    Toruń, Polska Allegro Pełny etat

    Software Engineer 1 (Java / Kotlin) Miejsce pracy: Toruń Technologies we use Expected Kotlin Java About the project Flexible working hours in an office first model (4/1) that depend on you and your team. Starting later or finishing earlier? No problem! Work hours keep pace with our lifestyles and can start between 7 a.m. and 10 a.m. The salary range for...

  • Java Developer

    6 godzin temu


    Toruń, Polska Sii Sp. z o.o. Pełny etat

    Java Developer – AI project Miejsce pracy: Toruń Technologies we use Expected Java Apache Kafka Redis AWS Optional AI About the project At Sii, we are looking for a Java Developer to join an innovative AI-driven fraud-prevention initiative delivered together with our global telecom client - a company best known worldwide for its cloud communications APIs...

  • Java / Kotlin Engineer

    5 godzin temu


    Toruń, Polska Allegro Pełny etat

    Software Engineer 1 (Java / Kotlin) Technologies we use Kotlin Java About the project Flexible working hours in an office first model (4/1) that depend on you and your team. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): - This is high-availability, high-performance engineering in...


  • Toruń, Polska Sii Sp. z o.o. Pełny etat

    Senior Test Automation Engineer with Java and Kafka Miejsce pracy: Toruń Technologies we use Expected Java Selenium Cucumber Junit Apache Kafka REST gRPC GraphQL Git Jenkins Optional Prometheus Grafana ELK Stack Dynatrace About the project We are looking for a detail-oriented Senior Test Automation Engineer to join our Scrum team developing next-generation...

  • Java Developer with AI

    6 godzin temu


    Toruń, Polska Sii Sp. z o.o. Pełny etat

    Java Developer with AI – pharmaceutical industry (f/m/x) Miejsce pracy: Toruń Technologies we use Expected Java 17 AWS Spirng Boot SQL SOLID Principles Grafana About the project We are looking for an experienced Java Developer to work on innovative solutions in the pharmaceutical industry. Our systems support clinicians and patients worldwide, leveraging...


  • Toruń, Polska Sii Sp. z o.o. Pełny etat

    AI Developer Experience Engineer (f/m/x) Technologies we use Python AWS About the project We’re looking for a curious and hands-on GenAI Developer who will help engineers work smarter by embedding Generative AI into everyday development tools and workflows. You will join a strategic project delivered together with our global client, best known worldwide...

Senior Java Software Engineer – AI-Driven Modernisation

1 godzinę temu


Toruń kujawskopomorskie, kujawsko-pomorskie, Polska Sii Sp. z o.o. Pełny etat
Senior Java Software Engineer – AI-Driven ModernisationMiejsce pracy: ToruńTechnologies we useExpected
  • Java
  • AI
  • LLM
  • GitHub Copilot
  • Claude Code
About the project

We’re building a next-generation technology team focused on modernising critical financial services through AI-first engineering. You’ll play a key role in transforming complex legacy systems into modern, scalable, and intelligent solutions. You’ll work hands-on with the latest AI tools to accelerate development, improve code quality, and deliver measurable impact across the organization.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

Your responsibilities
  • Modernizing legacy systems using AI to analyze, refactor, and optimize existing codebases
  • Implementing modern architecture patterns, including strangler fig and microservices migration approaches
  • Delivering production-ready services with robust testing, clear documentation, and multi-instance deployment support
  • Using AI tools throughout the SDLC to boost productivity and ensure faster delivery cycles
  • Collaborating with cross-functional teams to ensure smooth service transition and ownership handover
  • Demonstrating measurable improvements in performance, reliability, and API efficiency
Our requirements
  • Minimum 7 years of professional experience in Java programming
  • Experience with legacy system refactoring or service modernization projects
  • Hands-on experience with AI-powered development tools (e.g., GitHub Copilot, Claude Code, or similar LLMs)
  • Solid understanding of CI/CD, automated testing, and cloud-native architectures
  • Ability to design scalable, secure, and maintainable software solutions
  • Willingness to travel to Krakow for short business delegations as needed
  • Excellent command of English, both written and spoken, enabling effective communication in an international environment
  • Residing in Poland required
This is how we work on a project
  • Continuous Deployment
  • Continuous Integration
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
Recruitment stages
  • Send your CV
  • Talk to us about your expectations
  • Learn more about our projects and choose the best
  • Start your adventure with Sii
Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.