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Sr Java Engineer (Security Focus)

United States, Milwaukee Employment contract 130000.00 - 170000.00 USD / Year · Job Posted January 25, 2026
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Job Description

The ideal candidate is a senior backend engineer who has built Java services in production and is comfortable owning secure design decisions across APIs, microservices, and distributed systems.

Job Responsibility

  • Design, build, and maintain Java-based backend services and APIs using modern frameworks such as Spring / Spring Boot
  • Contribute to microservices and distributed architectures, with a focus on secure communication and data flow
  • Apply secure coding practices, defensive programming, and performance optimization
  • Participate in architecture and design reviews, with an emphasis on application security
  • Perform code reviews, threat modeling, and vulnerability remediation for backend systems
  • Help teams implement and strengthen authentication and authorization mechanisms (OAuth2/OIDC, JWT, RBAC)
  • Work with relational and NoSQL databases (PostgreSQL, MySQL, Oracle, MongoDB) using secure access patterns
  • Support secure development practices within CI/CD pipelines, including dependency and vulnerability scanning

Requirements

  • 7+ years of backend software engineering experience with strong Java depth
  • Hands-on experience building production Java services
  • Strong understanding of application security concepts (e.g., OWASP Top 10)
  • Experience designing and securing APIs (REST and/or gRPC)
  • Familiarity with modern development workflows (Git, CI/CD)
  • Ability to collaborate across engineering teams and communicate technical concepts clearly

Nice to have

  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Exposure to containers and modern deployment patterns
  • Experience with application security tools or testing workflows
  • Security-related certifications

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