Sr. Full Stack Web Developer

Company: Techsur Solutions Llc
Location: Reston
Posted on: April 1, 2026

Job Description:

Job Title: Sr. Full-Stack Web Developer Location: Reston, VA (Hybrid – 3x/Week) Salary: DOE full benefits Clearance: Active Public Trust (or ability to obtain) Overview: TechSur Solutions is a digital services company whose mission is to enable digital transformation for our customers to improve quality and efficiency. Based in the DC metropolitan area, TechSur specializes in advanced cloud services, modernization for both IT structures and applications, leveraging Agile development, and Data Analytics. Since we were formed in August of 2016, we have supported multiple impactful and exciting government programs. Position Summary We are seeking an experienced Full-Stack Web Developer to design, build, and maintain scalable web applications and provide ongoing technical support and enhancements. This role combines front-end expertise with back-end development, DevOps/CI-CD pipeline management, performance testing, and cross-functional collaboration. The ideal candidate is self-driven, solutions-oriented, and passionate about modern web technologies and continuous improvement. Key Responsibilities Full-Stack Web Application Development Design, develop, and maintain robust web applications using a modern technology stack including ExtJS, JAX-RS, Java EE, Spring Framework, and Hibernate ORM. Focus on client-side development and user interface implementation that delivers optimal performance, usability, and accessibility. Application Support & Enhancement Provide technical support for production applications, ensuring high availability and responsiveness. Analyze and resolve defects, and implement new features based on stakeholder requirements and user feedback. DevOps and CI/CD Pipeline Management Implement and maintain CI/CD pipelines using GitHub Actions. Ensure automated build, test, and deployment workflows are reliable, scalable, and secure. Performance Testing & Optimization Conduct load and stress testing using Tricentis NeoLoad. Identify performance bottlenecks and collaborate with the team to optimize application performance and scalability. Technology Research & Innovation Research, evaluate, and prototype emerging technologies and tools to improve development processes and product quality. Explore and integrate AI-assisted development capabilities, such as using Claude Code, to enhance development workflows. Cross-Functional Collaboration Work closely with DevOps and infrastructure teams to troubleshoot and resolve deployment issues within Azure Kubernetes Service (AKS) environments. Provide application-level expertise to support containerized deployment optimization and configuration. Institutional Knowledge Transfer & Mentorship Serve as a subject matter expert for legacy applications, offering guidance on architecture, design patterns, and functionality. Mentor and onboard new team members, and support informed decision-making related to system capabilities and technical constraints. Required Skills & Qualifications Proven experience in full-stack web development using ExtJS and Java-centric stacks (JAX-RS, Spring, Hibernate). Strong client-side UI development expertise. Hands-on experience with CI/CD pipelines, preferably GitHub Actions. Experience with performance testing tools such as NeoLoad. Familiarity with containerized environments and AKS. Demonstrated ability to troubleshoot production systems and provide technical support. Excellent collaboration, communication, and mentoring skills. Preferred Qualifications Experience with AI-assisted development tools (e.g., Claude Code). Background in scaling and optimizing enterprise-class applications. Knowledge of cloud services (Azure preferred). Education Bachelor’s degree in information technology, Computer Science, or related field (preferred)

Keywords: Techsur Solutions Llc, Reston , Sr. Full Stack Web Developer, IT / Software / Systems , Reston, Virginia