Senior Java Developer

Job Description

Job Summary

Tarkik Solutions is seeking motivated, career-oriented, and customer-focused Senior Java Full Stack Developers to support the Department of Homeland Security (DHS). This is a true full stack role with a strong backend emphasis. You’ll spend much of your time designing and building secure, scalable Java/Spring Boot services, APIs, and microservices, and you’ll pair that with solid front-end development in JavaScript/TypeScript using React or Angular.

Our teams use DevSecOps best practices to deliver, operate, and modernize complex, large-scale, internet-facing web and mobile applications and IT systems in an AWS cloud environment. We work with modern, open-source technologies and managed cloud services, and we put strong customer engagement at the center of how we deliver.

Duties

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• Design, build, and maintain enterprise Java/JEE backend services using Spring and Spring Boot
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• Build high-performance RESTful APIs and microservices, including integration across distributed systems and event-driven architectures
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• Develop and maintain front-end applications using JavaScript/TypeScript with React or Angular, consuming JSON-based APIs
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• Containerize and deploy services using Docker, and manage orchestration with Kubernetes and Helm
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• Build and maintain CI/CD pipelines (Harness, Jenkins) that automate testing, security scanning, and deployment
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• Design and support applications running in enterprise-scale AWS environments
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• Write and execute automated tests (unit, integration, Selenium, Artillery, Insomnia, TDD/BDD)
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• Document and test APIs
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• Work with cross-functional teams to turn requirements into high-quality, secure solutions
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• Participate in daily stand-ups, sprint planning, and retrospectives, communicating progress and blockers clearly
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• Debug and resolve issues in existing code to keep applications running smoothly and securely
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• Perform code reviews to uphold quality, coverage, and coding standards
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• Collaborate with QA to identify, track (Jira), and resolve defects
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• Monitor application performance in production and implement improvements
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Requirements

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• Bachelor’s degree in business, IT, or any related field
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• 8+ years of relevant work experience supporting complex projects
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• US Citizenship Required - Because of DHS Public Trust requirements, the customer will ONLY accept US Citizens (no Green Cards or professional visas)
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• Ability to obtain and hold a DHS Public Trust position and favorable suitability through a component background investigation
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Strong knowledge and experience in:

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• Java / JEE and object-oriented design
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• Spring Framework and Spring Boot , including Spring REST, Spring Data, and Spring Security
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• Microservices architecture and design patterns
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• Designing, developing, and consuming RESTful/JSON APIs
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• SQL and ORM frameworks (JPA/Hibernate)
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• Docker, Kubernetes, and Helm
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• Enterprise-scale applications in AWS
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• CI/CD with at least one DevSecOps tool such as Jenkins or Harness
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• Automated testing tools and practices (Selenium, Artillery, Insomnia, TDD, BDD)
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• Agile methodologies and tools
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• Strong communication skills, self-starter mindset, and the ability to understand business requirements
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Preferred

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• Existing DHS Public Trust, active CBP BI, or DoD Secret/Top Secret clearance
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• Message queues and event-driven architecture
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• PostgreSQL
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• Git / GitHub
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• Large-scale distributed systems
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• Angular
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Work Location

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• DC/Maryland/Virginia (DMV) candidates: Require 1 day per week on-site in Ashburn, VA
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• Candidates outside the DMV: Remote ok
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