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

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.