Senior Full Stack Java Developer (IAM domain)

Posted 9 Days Ago
Be an Early Applicant
Hiring Remotely in Kraków, Małopolskie
In-Office or Remote
Senior level
Software
The Role
Develop and maintain an access management system using Java/Spring and React, while ensuring system reliability and optimal user authentication and authorization solutions.
Summary Generated by Built In
Company 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

Top Skills

Crossplane
Docker
Java
Junit
Kafka
Kubernetes
Mockito
Neo4J
Postgres
React
Spring Boot
Spring Persistence
Spring Security
Terraform
Typescript
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The Company
New York, New York
1,516 Employees

What We Do

Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs.

Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts.

Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters

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