Senior Software Engineer - Java

Role Overview

Responsibilities

• Develop and enhance platform integration services across authentication federation, authorization federation, user synchronization, and cross-platform communication.
• Define architecture, design features, and develop services in Java with Spring and Kotlin.
• Work with token exchange, service principals, user-context authentication, and auditing across platform boundaries.
• Integrate, build, and deploy containerized solutions from test systems to production.
• Design secure, documented APIs and highly available database systems.
• Optimize software, ensure secure and scalable operation, and monitor technical developments for improvements.
• Guide, coach, and mentor team members on engineering topics and software development best practices.
• Advise product owners on feasibility and estimates and collaborate with DEX teams on interfaces and integration flows.

Requirements

• University degree in information technology, computer science and engineering, or a related subject.
• At least 7 years of professional software development experience.
• Solid knowledge of Java with Spring, Kotlin, and SQL.
• Understanding of authentication and authorization concepts such as OAuth2/OIDC, token exchange, and service-to-service authentication.
• Hands-on experience with cloud services, Docker containers, Kubernetes, Docker Desktop, and CI/CD pipelines.
• Experience with a unit testing framework and architectural decisions for large-scale distributed systems.
• Knowledge of Secure SDLC, OWASP Top 10 remediation, threat modeling, clean code, and object-oriented design patterns.
• Experience with feasibility studies, proofs of concept, and prototyping.
• Ability and willingness to mentor junior engineers with strong communication skills.
• A positive, structured, analytical, solution-oriented, and team-focused working style is expected.

Preferred Skills

• Knowledge of .NET and C# backend services is a plus.
• Experience with parallel programming, test automation, network communications, or digital certificates and PKI is desirable.
• Familiarity with AI coding tools such as Copilot is a plus.

Work Environment

• The description presents the role within a young, motivated, diverse, and collaborative engineering team.

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