Sr. Full Stack Web Developer
Company: Techsur Solutions Llc
Location: Reston
Posted on: April 1, 2026
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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