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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Full Stack Developer - **Company:** Halvik Corp. - **Location:** McLean, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, HTML5, Build Automation, Automation of Tests, Cascading Style Sheets (CSS), Software Quality, Code Review, Data Validation, Database Queries, Programming Tools, Github, Identity and Access Management, Junit, Performance Tuning, Scrum Methodology, E2e Testing, Mockito, Cloud Services, Software Deployment, Data Streaming, Systems Architecture, TypeScript, Web Applications, Web Application Frameworks, System Availability, Delivery Pipeline, Spring-boot, Reliability of Systems, Backend, Cloudformation, Amazon Relational Database Service, Containerization, AngularJS, Material UI, Infrastructure Automation Frameworks, Information Technology, Codebase, Front End Software Development, Functional Programming, Cloudwatch, Api Gateway, Restful APIs, Terraform, Code Restructuring, Jasmine, Legacy Systems, Microservices - **Published:** September 29, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9200081/sr-full-stack-developer ## About the Role * Education: Bachelor's Degree in Computer Science, Business, or related field. * Experience: Minimum of 10-15 years of professional experience in IT Industry. * Technical Proficiency: Advanced knowledge of Java, Spring boot, Angular, AWS, Aurora DB, AI Tools: Roo Code, Claude Models etc. * Compliance: Must meet public trust requirements. * Certifications: AWS Certified Solutions Architect and preferred any AI certification or courses ## Description The Senior Full Stack Developer will design and build end to end applications using Java, Spring Boot, and Angular to deliver scalable and modern digital solutions. They will develop RESTful microservices and intuitive front-end interfaces that support seamless user experiences. This role involves deploying and optimizing applications on AWS Cloud, ensuring high availability, security, and performance. The developer will leverage AI powered tools to enhance productivity, automate workflows, and improve code quality. A key responsibility is modernizing legacy systems, including refactoring monolithic applications into cloud native architectures. The position requires strong collaboration with cross functional teams in an Agile environment to translate business needs into technical solutions. The developer will ensure code quality through testing, reviews, and adherence to best practices. They will also integrate modern frameworks, cloud services, and automation tools to improve system reliability and maintainability. The role includes contributing to architectural decisions and providing technical guidance to team members. Ultimately, the Full Stack Developer will drive innovation by adopting emerging technologies and continuously improving the application ecosystem. Core Responsibilities * Develop end to end web applications using Java, Spring Boot, RESTful APIs, and Angular to deliver scalable, maintainable, and high performance solutions. * Build responsive, accessible, and user friendly UI components using Angular, TypeScript, HTML5, and CSS3. * Integrate backend services with front end applications, ensuring seamless data flow and consistent user experiences. * Deploy, manage, and optimize applications on AWS Cloud using services such as EC2, Lambda, S3, RDS, API Gateway, CloudWatch, and IAM. * Implement CI/CD pipelines using tools like GitHub Actions, AWS CodePipeline to automate build, test, and deployment processes. * Ensure application reliability, scalability, and security through AWS best practices, monitoring, and infrastructure as code (IaC) tools such as CloudFormation or Terraform. * Leverage AI powered development tools (e.g., code assistants, automated testing tools, AI based documentation generators) to improve productivity and code quality. * Use AI driven analytics tools to support decision making, optimize workflows, and enhance user experience. * Analyze existing monolithic or legacy applications to identify modernization opportunities. * Refactor, re architect, or migrate legacy systems into modern microservices, cloud native architectures, or containerized environments. * Migrate legacy codebases to Java/Spring Boot, Angular, and AWS based solutions while ensuring minimal disruption to business operations. * Improve system performance, security, and maintainability by replacing outdated frameworks, libraries, and patterns with modern alternatives. * Write unit, integration, and end to end tests using JUnit, Mockito, Jasmine, Karma, or similar frameworks. * Conduct performance tuning for both backend and frontend components, optimizing API response times, database queries, and UI rendering. * Perform code reviews, enforce coding standards, and ensure adherence to best practices across the development lifecycle. * Work closely with product owners, UX designers, QA engineers, and other stakeholders in an Agile/Scrum environment. * Participate in sprint planning, backlog refinement, daily stand ups, and retrospectives. * Provide technical guidance, mentor junior developers, and contribute to architectural discussions and decision making. * Implement secure coding practices, including authentication, authorization, input validation, and data protection. * Ensure compliance with organizational, industry, and regulatory standards when designing and deploying applications. * Use AWS security tools and best practices to safeguard cloud hosted applications. * Maintain clear, concise technical documentation for APIs, system architecture, deployment processes, and codebases. * Continuously evaluate emerging technologies, frameworks, and AI tools to enhance development efficiency and system capabilities. * Identify opportunities for automation, process improvement, and technical innovation across the development lifecycle. ## Related Videos - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)