Senior Java Developer

MKS2 Technologies

. Lead the design, development, migration, and support of scalable Java-based microservices and APIs in a modern cloud environment .

Posted 10/12/2026full-timeRemote • United StatesSenior💰 $130,000 - $140,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in leading the design and development of scalable Java-based microservices and APIs, with a strong focus on cloud environments and data strategy. Proficient in implementing security best practices and optimizing performance while maintaining data integrity.

Highest-signal resume keywords

Java DevelopmentMicroservices ArchitectureAPI Design and DevelopmentKubernetes DeploymentDatabase Optimization

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaSpring BootHibernateREST APIGraphQLPostgreSQLMySQLDockerKubernetesHelm

Soft Skills

Team LeadershipProblem SolvingCollaboration

Tools & Technologies

GitOAuthGitHub Copilot

Certifications & Qualifications

Public Trust Eligibility

Industry Keywords

Cloud EnvironmentData IntegrityApplication SecurityMigration StrategyPerformance Tuning

Tech Stack

Tools & technologies

AWSCloudDockerGraphQLHibernateJavaKubernetesMicroservicesMySQLPostgresRubySpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Lead the design, development, migration, and support of scalable Java-based microservices and APIs in a modern cloud environment
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 REST and GraphQL protocols
Lead data strategy and migrate 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 GitHub Copilot for coding
Implement authentication, authorization, encryption, and other security best practices
Monitor and optimize API performance, scalability, and reliability
Support on-call operations

Requirements

What you’ll need

Public Trust Eligibility
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