Mid-level Backend/Middleware Developer

Company: Knowledge Management, Inc.

Location: Washington, DC 20224 (Remote)

Salary: $125,000 - $130,000 a year

Type: Full-time

Remote: Yes

Posted: 2026-04-17

About this role

Knowledge Management, Inc. (KMI) has the leadership and experience to deliver innovative technology, logistics and management solutions to meet real mission requirements. KMI is a Minority Business Enterprise (MBE) and Small Disadvantage Business (SDB) that specializes in Logistics, Warehouse Services, Distance Learning/Training, Enterprise Solutions, Financial Management Support, Program Management, Intelligence AnalysisThreat Assessment, and Data Analytics/Operations Research. Since 1998, our solutions and services have helped our clients improve performance, drive cost and operational effectives, and map technology needs for tomorrow's requirements.

Title: Mid-level Backend/Middleware Developer

Location: Remote

Position: 1

Duration: Multi-year program

Start date: ASAP

Security Clearance: Active US Treasury Public Trust is preferred. Anyone with an active DOD clearance, would be processed for a Public Trust.

Salary: Please provide your salary requirement

Position Overview: Knowledge Management, Inc. is seeking a Mid-level Backend/Middleware Developer to design, develop, and maintain robust, scalable API and middleware solutions for our secure, mission-critical applications. This role is critical to client's product roadmap and will focus on building secure, high-performance middleware services using Java and Spring Boot, with a strong emphasis on Zero Trust principles.

Key Responsibilities:

  • Design, develop, and deploy comprehensive RESTful APIs using Java and the Spring Boot framework.
  • Implement and maintain security for API endpoints using OAuth 2.0 and OpenID Connect (OIDC) protocols.
  • Enforce authorization policies based on Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) principles.
  • Contribute to the development of secure edge computing and cloud-native solutions that meet stringent compliance and security criteria.
  • Write clean, maintainable, and testable code with a strong emphas...

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