Senior Java Full Stack Developer

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 Design, build, and maintain enterprise Java/JEE backend services using Spring and Spring Boot Build high-performance RESTful APIs and microservices, including integration across distributed systems and event-driven architectures Develop and maintain front-end applications using JavaScript/TypeScript with React or Angular, consuming JSON-based APIs Containerize and deploy services using Docker, and manage orchestration with Kubernetes and Helm Build and maintain CI/CD pipelines (Harness, Jenkins) that automate testing, security scanning, and deployment Design and support applications running in enterprise-scale AWS environments Write and execute automated tests (unit, integration, Selenium, Artillery, Insomnia, TDD/BDD) Document and test APIs Work with cross-functional teams to turn requirements into high-quality, secure solutions Participate in daily stand-ups, sprint planning, and retrospectives, communicating progress and blockers clearly Debug and resolve issues in existing code to keep applications running smoothly and securely Perform code reviews to uphold quality, coverage, and coding standards Collaborate with QA to identify, track (Jira), and resolve defects Monitor application performance in production and implement improvements Requirements Bachelor’s degree in business, IT, or any related field 8+ years of relevant work experience supporting complex projects US Citizenship Required - Because of DHS Public Trust requirements, the customer will ONLY accept US Citizens (no Green Cards or professional visas) Ability to obtain and hold a DHS Public Trust position and favorable suitability through a component background investigation Strong knowledge and experience in: Java / JEE and object-oriented design Spring Framework and Spring Boot, including Spring REST, Spring Data, and Spring Security Microservices architecture and design patterns Designing, developing, and consuming RESTful/JSON APIs SQL and ORM frameworks (JPA/Hibernate) Docker, Kubernetes, and Helm Enterprise-scale applications in AWS CI/CD with at least one DevSecOps tool such as Jenkins or Harness JavaScript/TypeScript with React or Angular Automated testing tools and practices (Selenium, Artillery, Insomnia, TDD, BDD) Agile methodologies and tools Strong communication skills, self-starter mindset, and the ability to understand business requirements Preferred Existing DHS Public Trust, active CBP BI, or DoD Secret/Top Secret clearance Message queues and event-driven architecture PostgreSQL Git / GitHub Large-scale distributed systems Splunk Jasper Reports Amazon Aurora, Redshift, S3, ECS Apache Tomcat Rancher Knowledge of SAFe Work Location DC/Maryland/Virginia (DMV) candidates: Require 1 day per week on-site in Ashburn, VA Candidates outside the DMV: Remote ok Pay: $140,000.00 - $150,000.00 per year Benefits 401(k) 401(k) matching AD&D insurance Dental insurance Disability insurance Flexible spending account Health insurance Health savings account Life insurance Paid holidays Paid time off Prescription drug insurance Vision insurance Work from home Application Question(s): The client REQUIRES US Citizenship for the Public Trust process. Are you a US Citizen? (Green cards and professional visas will not be accepted) Do you currently have any ACTIVE security clearances, including Public Trust? Please list the type and agency. If you do not have an ACTIVE security clearance or Public Trust suitability, are you eligible to obtain one, and are you in a position to wait for the investigation to be completed before starting work? This process could take months. Education: Bachelor's (Required) Experience: Full Stack: 8 years (Required) Work Location: Hybrid remote in Ashburn, VA 20147