Senior Java Developer (Security Platform)


Job Location:

Warsaw - Poland

Monthly Salary: Not Disclosed
Posted on: 4 hours ago
Vacancies: 1 Vacancy

Job Summary

  • Design and evolve the platform access architecture for a large-scale distributed ecosystem
  • Build and maintain a unified API layer over multiple distributed services
  • Implement fine-grained ABAC authorization at scale supporting complex hierarchies and relationships
  • Develop fail-closed security architectures with strict enforcement guarantees
  • Manage regional compliance data residency and routing requirements
  • Ensure consistent data visibility rules across all products and services
  • Design high-performance authorization evaluation systems and policy engines
  • Maintain auditability traceability and security transparency mechanisms
  • Collaborate with platform and product teams on API and access design
  • Contribute to architectural decisions and security standards

Qualifications :

  • At least 5 years of experience building distributed systems
  • Strong expertise in Java development
  • Experience designing API platforms or API gateways
  • Solid background in security architecture and system design
  • Experience with authorization systems (RBAC/ABAC or similar)
  • Familiarity with cloud-native architectures and scalable high-availability systems
  • Understanding of multi-tenant architectures
  • Experience operating complex distributed systems in production
  • Strong architectural thinking and problem-solving skills
  • Upper-Intermediate or higher English proficiency

WILL BE A PLUS

  • Experience with Identity and Access Management (IAM) systems
  • Experience building API gateways or service mesh architectures
  • Work on security-critical or compliance-heavy systems
  • Knowledge of policy engines (e.g. OPA)
  • Experience with large-scale enterprise platforms
  • Familiarity with cloud providers (e.g. GCP)
  • Experience with data governance audit and compliance systems
  • Background in regulated or high-security environments

Additional Information :

PERSONAL PROFILE

  • Proactive and detail-oriented
  • Thrives in collaborative environments
  • Enjoys solving complex integration challenges
  • Comfortable experimenting with new technologies
  • Committed to improving data systems

Remote Work :

Yes


Employment Type :

Full-time

Design and evolve the platform access architecture for a large-scale distributed ecosystemBuild and maintain a unified API layer over multiple distributed servicesImplement fine-grained ABAC authorization at scale supporting complex hierarchies and relationshipsDevelop fail-closed security architect...

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At Sigma Software, we are involved with the client’s team to contribute to the design and development of a technical solution for their tokenized domain reservation platform. We started by assigning a software architect to design the smart contracts and integrate blockchain into the s ... View more

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