Senior Java Developer

MKS2 Technologies
United States
Remote

Who this role is best for

Best suited to Java engineers with strong leadership experience working in government agencies or enterprise environments.

Best fit for

  • Candidates with 8+ years of technical leadership experience in Java microservices and API development
    — “8+ years of experience leading technical teams in building scalable modern Java services.”
  • Individuals who have successfully modernized large legacy monoliths into microservices
    — “Proven experience breaking down large, complex legacy monoliths into smaller, independent services.”
  • Professionals with hands-on Kubernetes and cloud deployment expertise in AWS environments
    — “Deploy and operate workloads on Kubernetes in AWS, including deployment manifests, Helm, scaling, rollouts, and resource requests/limits.”

Things to consider

  • This role requires a Public Trust clearance, which may take time to obtain.
    — “Clearance: Public Trust Eligibility”
  • The position involves on-call operations, which implies availability beyond standard work hours.
    — “Support on-call operations.”

How to stand out

  • Highlight experience with Ruby-to-Java migrations on your resume if applicable.
    — “Ruby-to-Java migration experience preferred, but not required.”
  • Emphasize your track record of resolving system bottlenecks during development.
    — “Identify and resolve data or system bottlenecks early in the development lifecycle.”
  • Showcase your ability to lead while staying hands-on with code and architecture.
    — “Ability to lead engineering teams while remaining hands-on with development.”
  • Demonstrate your knowledge of secure development practices in your interview responses.
    — “Implement authentication, authorization, encryption, and other security best practices to protect data and services.”
  • Quantify your impact on API performance, scalability, and reliability.
    — “Monitor and optimize API performance, scalability, and reliability.”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • leading the design and development of scalable Java-based microservices
  • deploying and operating workloads on Kubernetes
  • implementing security best practices
Typical background
8+ years of experience in Java developmenttechnical leadership experience

Skills & requirements

Required

JavaSpring BootHibernateREST APIKubernetesDockerGitOAuthAPI DevelopmentMicroservices Architecture

Preferred

Ruby-to-java Migration Experience

Stack & domain

JavaSpring BootHibernateREST APIPostgreSQLMySQLDockerKubernetesHelmGitOAuthLeadershipProblem-solvingCommunicationTeamworkCyber SecurityInstructional DesignTrainingSoftware EngineeringIT Support

About the role

Original posting from MKS2 Technologies

MKS2 Technologies, LLC, an award-winning high growth small business, creates innovative and customer-centric technology solutions in the areas of Cyber Security, Instructional Design and Training, Software Engineering and IT Support Services to improve the security and well-being of our clients. Our commitment to excellence and our “Mission First” orientation has resulted in steady growth and an expanding client base across government agencies. We have employees nationwide and for the past three consecutive years were named one of the fastest growing Veteran-owned companies in the nation. Please take a moment to browse through our website and learn more about what it means to serve with MKS2.

Senior Java Developer 

Location: Remote (U.S.)

Salary: $130,000 - $140,000 annually

Clearance: Public Trust Eligibility 

Summary

The Senior Java Engineer will lead the design, development, migration, and support of scalable Java-based microservices and APIs in a modern cloud environment. This role requires strong hands-on engineering capability, technical leadership, and experience modernizing legacy systems.

Responsibilities

  • Plan and execute migration from legacy monolithic code to modern, scalable Java-based microservices without disrupting live systems.
  • Lead API design and development, including specifications, endpoints, data models, and protocols such as REST and GraphQL.
  • Lead data strategy and migration of shared databases into service-specific data layers while maintaining data integrity.
  • Identify and resolve data or system bottlenecks early in the development lifecycle.
  • Deploy and operate workloads on Kubernetes in AWS, including deployment manifests, Helm, scaling, rollouts, and resource requests/limits.
  • Tune and optimize databases through query performance tuning, indexing strategy, connection pooling, migration strategy, and caching patterns.
  • Write production-grade code for core services and remain deeply involved in the codebase.
  • Ensure seamless API integration with internal systems, external systems, applications, and third-party services.
  • Promote adoption of AI in the API development lifecycle, including use of GitHub Copilot for coding.
  • Implement authentication, authorization, encryption, and other security best practices to protect data and services.
  • Monitor and optimize API performance, scalability, and reliability.
  • Support on-call operations.

Qualifications & Skills

  • 8+ years of experience leading technical teams in building scalable modern Java services.
  • Proven experience breaking down large, complex legacy monoliths into smaller, independent services.
  • Deep hands-on knowledge of modern Java, Spring Boot, Hibernate, and REST API development.
  • Experience with relational databases such as PostgreSQL or MySQL.
  • Strong experience designing, building, and maintaining APIs.
  • Ability to lead engineering teams while remaining hands-on with development.
  • Experience with Docker, Kubernetes, and Helm.
  • Familiarity with application security principles and secure development practices.
  • Familiarity with Git version control.
  • Familiarity with OAuth.
  • Ruby-to-Java migration experience preferred, but not required.

Diversity creates a healthier atmosphere: MKS2 Technologies is proud to be an Equal Employment Opportunity / Affirmative Action employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, protected veteran status, disability status, sexual orientation, gender identity or expression, marital status, genetic information, or any other characteristic protected by law.

Source: MKS2 Technologies careers

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