Full Stack .NET Developer
Company: Techsur Solutions Llc
Location: Reston
Posted on: April 1, 2026
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Job Description:
Job Title: Full Stack .NET Developer Location: Reston, VA
(TechSur HQ Office) Salary: DOE Full Benefits Clearance: Active DHS
Suitability (or ability to obtain) Company Overview TechSur
Solutions is a digital services company with a mission to enable
digital transformation for our customers, improving quality and
efficiency. Based in the DC metropolitan area, TechSur specializes
in advanced cloud services, IT modernization, Agile development,
and data analytics. Since our formation in August 2016, we have
supported multiple impactful and exciting government programs.
Position Overview We are seeking a highly motivated Full Stack .NET
Developer to contribute to the development and maintenance of
mission-critical applications within DHS environment. As a key
member of the technology team, you will design, develop, and
optimize applications that support the adjudication and processing
of immigration benefits. The ideal candidate excels in .NET and C#,
is fluent in working with both legacy and modern databases, and
demonstrates the curiosity and agility needed to quickly master
other related technologies and tools. Key Responsibilities Develop,
maintain, and optimize .NET applications, primarily using C#, in
both legacy desktop and modern web environments. Work with
associate databases including Oracle 19c and PostgreSQL for robust
data management and integration. Collaborate with cross-functional
teams to deliver scalable solutions supporting case management,
tracking, and processing of enterprise data. Participate in code
reviews, unit testing, automated deployments, and continuous
integration/continuous delivery (CI/CD) pipelines using tools such
as Jenkins and MS Build. Ensure compliance with Section 508 and
Windows 10 standards in all deliverables. Quickly learn and apply
new skills in technologies and frameworks such as Java (Web
Microservices), Angular, Docker/Kubernetes, AWS services (including
EKS, SQS, S3, AppStream), and related development and test
automation tools. Implement code quality and security measures,
leveraging tools like SonarQube, Twistlock, Fortify, and Selenium.
Provide support throughout the software development lifecycle, from
requirements gathering and design to deployment and maintenance
within Dev/Test/UAT/Production environments. Required Skills &
Qualifications 3-5 years of experience in software development and
proven experience developing full stack applications in C, C#, and
.NET framework. Strong working knowledge of relational databases,
especially Oracle 19c and PostgreSQL, including SQL and PL/SQL
programming. Experience with source control systems such as GitHub
and familiarity with CI/CD pipeline practices. Comfortable adapting
to and adopting new technologies and tools as needed (Java,
Angular, AWS, Docker/Kubernetes, automation frameworks, etc.).
Experience supporting and migrating legacy systems, including
Crystal Reports. Ability to work independently and as part of a
dynamic, collaborative team. Strong analytical, problem-solving,
and communication skills. Preferred Skills Experience with
front-end frameworks such as Angular and HTML5/CSS. Familiarity
with enterprise container platforms (Docker, Kubernetes, EKS).
Knowledge of automated testing and code quality tools (Junit,
Selenium, SonarQube, Twistlock, Fortify). Previous experience in
integrating with external systems and APIs. Education Bachelor’s
degree in computer science, Information Systems, or a related
discipline.
Keywords: Techsur Solutions Llc, Harrisonburg , Full Stack .NET Developer, IT / Software / Systems , Reston, Virginia
