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Senior Full Stack Java Developer (IAM domain)

Java

Senior Full Stack Java Developer (IAM domain)

Java

Wadowicka 7, Kraków

Sigma Software

Full-time
B2B
Senior
Remote

Tech stack

    English

    C1

    Java

    master

    Java/Spring

    master

    React

    advanced

    TypeScript

    advanced

Job description

Are you a Senior Full Stack Java Developer who can break down and solve complex problems? Do you have a strong motivation to get things done with a boots-on-the-ground, pragmatic mindset?  

Then welcome to the team! 

We are looking for an engineer who can creatively handle complex dependencies and ambiguous requirements, competing business priorities, while producing fit-for-purpose, optimal solutions. 

CUSTOMER

Our customer is one of the oldest and biggest biopharmaceutical company, which focus on scientific innovation to deliver medicines and vaccines that may help millions of people around the world. 

Joining this project, you will be responsible for the development of an access management system as a part of our open-minded technically skilled team. 


Job Description


  • Perform Full Stack development using Java/Spring (Boot, Persistence, Security), React, and TypeScript, ensuring high-quality, maintainable, and scalable code 

  • Provide system support and monitoring, promptly fixing bugs, optimizing performance, and implementing architecture improvements 

  • Integrate IAM solutions (such as Keycloak, LDAP, SCIM) into business processes to ensure secure authentication, authorization, and identity management 

  • Collaborate with cross-functional teams to deliver features, improve workflows, and maintain system reliability 


Qualifications


  • 5+ years of professional experience in software development, with a strong background in designing, implementing, and supporting scalable applications 

  • Solid expertise in Java and the Spring framework (Spring Boot, Spring Persistence, Spring Security, and related modules) 

  • Hands-on experience with PostgreSQL or other relational SQL databases 

  • Proficiency in React and TypeScript for modern Front-end development 

  • Upper-Intermediate level of English 

WOULD BE A PLUS 

  • Experience with Graph databases (e.g., Neo4j) 

  • Familiarity with OpenAPI 

  • Knowledge of Docker and Kubernetes (basic usage and concepts) 

  • Experience with Kafka or similar message brokers 

  • Familiarity with Go 

  • Hands-on experience with testing frameworks such as JUnit, Mockito, etc. 

  • Knowledge of Terraform and Crossplane 

IAM TECHNOLOGIES

  • Understanding of SCIM 

  • Experience with Keycloak (or other Identity Providers), Role Management, OIDC 

  • Familiarity with Active Directory, Entra ID, and MS Graph 


Additional information


PERSONAL PROFILE

  • Ability to work independently 

  • Ability to convey ideas, recommendations, and strategy 

  • Excellent communication skills, both verbal and written 

  • Able to work as part of a team 

  • Ability to work proactively


Published: 09.10.2025
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Senior Full Stack Java Developer (IAM domain)

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Senior Full Stack Java Developer (IAM domain)

Wadowicka 7, Kraków

Sigma Software

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