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Synergy ECP

Senior .Net & REACT Full Stack Developer

Washington, DC

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hirly's read of this role

Role family
Engineering
Seniority
Senior
Country
US
Work mode
On-site / unstated
First seen by hirly
1 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

NetServices (NSI) is an IT services firm with a long-standing reputation for delivering high-quality, cost-effective solutions to drive lasting results. Now operating as a subsidiary of Synergy ECP, NSI continues to stand out in a crowded contracting landscape through its agility, strong customer focus, and commitment to retaining exceptional talent. By taking on challenging IT initiatives, we cultivate our talent and are continually evolving through our partnerships with clients. Our close-knot team of highly cleared engineers, analysts, and program managers represent some of the best talent locally available.

As a . NET/React Full Stack Developer , you will play a critical role in the development and maintenance of web applications and services. You will be responsible for designing, coding, testing, and deploying high-quality software solutions using the .NET framework and associated technologies, as well as React. Your expertise in both front-end and back-end development will be essential in creating seamless and efficient user experiences. You will collaborate closely with cross-functional teams, including designers, product managers, and other developers, to deliver robust and scalable applications.

In this role, you will engage in the full software development lifecycle, from concept and design to testing and deployment. You will be expected to write clean, maintainable, and efficient code, and to adhere to best practices and coding standards. Your ability to troubleshoot and resolve complex technical issues will be crucial in ensuring the reliability and performance of our applications. Additionally, you will participate in code reviews, provide constructive feedback, and contribute to the continuous improvement of our development processes.

What you'll do:

Experienced with ASP.NET framework, Entity Framework, SQL Server and design/ architectural patterns (e.g. APIs with Dependency Injection)

Experienced with .NET languages (e.g. C#, ADO.NET, EF)

Familiarity or experience with architecture styles/APIs (REST, RPC)

Develop and maintain web applications using React, TypeScript, JavaScript, Node.js and HTML5/CSS3

Design and implement both front-end and back-end components of the application.

Ensure the performance, quality, and responsiveness of applications.

Collaborate with cross-functional teams to define, design, and ship new features.

Write clean, scalable, and maintainable code following best practices.

Conduct thorough testing of applications, including unit, integration, and system testing.

Troubleshoot and resolve technical issues and bugs.

Participate in code reviews and provide feedback to peers.

Use Git/Gitlab for source control

What you’ll need:

Bachelor's Degree

Minimum 8 years of experience

Bonus if you have:

Experience with front-end frameworks such as React.

Familiarity with cloud platforms like AWS or Azure.

Knowledge of database design and development, including SQL and NoSQL databases.

Knowledge of Object Relational Mappers, such as Entity Framework

Understanding of DevOps practices and tools, such as CI/CD pipelines, Docker, and Gitlab.

Relevant certifications in .NET development or cloud technologies.

Experience working in an Agile/Scrum development environment.

Strong problem-solving skills and attention to detail.

Excellent communication and collaboration skills.

Security Clearance requirement:

Must possess active TS/SCI clearance to be considered for this role.

Other Requirements:

U.S. Citizenship

Compensation Spotlight:

For this role, our typical salary range starts at $125,000 and stretches up to $155,000. But here's the deal – we're not about capping your potential. We're committed to snapping up the best and brightest, and we're ready to put our money where our mouth is. So, if you're one of the rare exceptions to the status quo with the education, experience, and that extra something special, we're not afraid to go above and beyond to secure your talent. Because for us, it's not just about a salary. It's about the complete rewards package, the culture, and the opportunity to make a real impact.

Original posting on Synergy ECP's site ↗

Listed on hirly, a job board. hirly is not the employer: Synergy ECP is hiring for this role.

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