Senior .NET Developer
Evolver, LLC
Evolver is a cybersecurity and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations. We help customers secure critical systems, modernize enterprise technology, and solve complex operational challenges through integrated capabilities spanning cybersecurity, enterprise IT infrastructure, cloud, software development, data analytics, legal technology and eDiscovery, applied AI, and electronic security systems. Our teams combine deep technical expertise with mission understanding to deliver secure, reliable, and scalable solutions that advance performance in high-stakes environments. Evolver is seeking a Senior .NET Developer to support the work and projects of our client in Washington D.C. Must be able to pass a USCP Background Check. The role's primary function will be to work with the software development team to support and enhance existing software applications written in .NET, ColdFusion, and Java, using SQL Server and Oracle databases in the backend. Responsibilities This position requires excellent interpersonal and written communication skills to interface effectively with key stakeholders and demonstrated ability to present material effectively to all levels of management. Ability to work with non-technical customers and create software solutions based on their requirements. Ability to work with subject-matter experts, analyze existing solutions, databases and reports and make or suggest improvements, as needed. Ability to work productively without being micromanaged. Update developer technical reference documentation and program WIKIs. Experience working in an agile environment with SCRUM or Kanban. Identify innovative solutions for legacy applications and adapt to emerging technologies for new requirements. Basic Qualifications A Master's degree in Computer Science or a related field and at least 13 years of applicable experience, or additional years of experience in lieu of degree. SCRUM Master certification. 10 years of experience developing web applications using Microsoft C#. 5 years of front-end development experience with JavaScript, AJAX, JSON, CSS and XHTML, preferably HTML5/CSS3. 5 years of experience with jQuery and at least one additional modern JavaScript SPA framework, such as React Vue, Angular, or Blazor. Ability to debug web pages (layout, JavaScript, AJAX) using browser developer tools. 5 years of experience with RestAPI end-points. Experience with .Net Core and above. Experience with Test Driven Development (TDD).Must be able to pass a USCP Background Check. Preferred Qualifications Expertise with web development using Microsoft tools to include Visual Studio, VS Code, Azure Data Studio, Azure DevOps, Microsoft IIS Server, and SQL Server Management Studio. Experience with Windows Desktop applications using WPF, UWP, WinUI, Maui, or Uno. A firm understanding of database design fundamentals, including table design and normalization, query writing using SQL, and database and query optimization. Knowledge of developing cross-browser and cross-platform compatible solutions.Experience working with a relational database such as Microsoft SQL Server, Oracle. Experience debugging errors and ability to analyze application errors logs on server or database. Knowledge of Dependency Injection and Inversion of Control. Ability to develop in Visual Studio with Azure DevOps. A solid understanding of the principles of GIT. Experience with Entity Framework Core (Preferred). Ability to create attractive, highly user-friendly, reactive user interfaces using Bootstrap 5 and/or Material UI (Preferred). Knowledge of Node Package Manager (NPM) and WebPack (Preferred). Understanding of LESS or SASS (Preferred). Ability to analyze application requirements. Understanding of Web Accessibility and be able to demonstrate work that conforms to accessibility guidelines. Ability to configure, troubleshoot, and optimize IIS installations/applications. Knowledge of emerging web technologies. CompTIA Security+. Evolver is an equal-opportunity employer and welcomes all job seekers. It is the policy of Evolver not to discriminate based on race, color, ancestry, religion, gender, age, national origin, gender identity or expression, sexual orientation, genetic factors, pregnancy, physical or mental disability, military/veteran status, or any other factor protected by law. Actual salary will depend on factors such as skills, qualifications, experience, market and work location. Evolver offers competitive benefits, including health, dental and vision insurance, 401(k), flexible spending account, and paid leave (including PTO and parental leave) in accordance with our applicable plans and policies. #J-18808-Ljbffr Evolver, LLC
- ...Senior .NET Developer Location: Alexandria, VA. Work Schedule: Onsite 5 days per week. Employment Type: Contract-to-Hire. Clearance: Must be able to obtain a Public Trust. Citizenship: U.S. Citizenship required. We are seeking a Senior .NET Developer for a contract-to-...SeniorContract work
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- Evolver, LLC, located in Washington D.C., is looking for a Senior .NET Developer to enhance critical software applications for our projects. The developer will work closely with teams in a dynamic environment, involving key stakeholders and non-technical customers. Candidates...Senior
- Role Overview We are seeking a full-time, backend-focused Senior .NET Developer to support application modernization initiatives and ongoing maintenance of legacy systems. This role requires a hands‑on engineer with strong experience in modern backend technologies, containerized...SeniorFull timeLocal area
$125k - $135k
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$125k - $135k
Network Designs, Inc. is in Alexandria, VA, seeking a Senior .NET Developer to engage in the full software development life cycle, focusing on web applications and modernizing infrastructure. The role emphasizes best practices for secure and maintainable coding. With a...Senior- ...Senior.NET Full Stack Developer Hybrid (Wednesdays in Silver Spring, MD) 9-12 months+ Top Skills Needed Autonomous Problem Solving – Able to identify and resolve issues independently Architectural Foresight – Designs scalable, maintainable solutions proactively...Senior
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$98.5k - $184.9k
Accenture Federal Services is seeking a .NET Full Stack Developer in Washington, DC, to develop and maintain web applications. In this role, you will design, code, and deploy software solutions, ensuring high performance and reliability. The ideal candidate has a Bachelor...Senior- ...Kadiak, LLC, a Koniag Government Services company, is seeking a Senior Net Full-Stack Developer with a Top-Secret security clearance to support Kadiak and our government customer in Washington, DC. We offer competitive compensation and an extraordinary benefits...SeniorLocal areaFlexible hours
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- ...degree in Computer Science or related field. 5+ years of professional software development experience, including 3+ years developing rich-client .NET desktop applications, with a track record of owning features from design through production. Expert-level C# and .NET (...Senior
$100k
We’re hiring a remote full-stack developer for our C#/.NET team. You are ideally a mid or senior-level .NET developer with experience building high-quality modern solutions and experience working autonomously. You’ll start on a six-month contract with the option to continue...SeniorHourly payContract workFor contractorsWork experience placementRemote workFlexible hours- CoStar Group in Arlington, VA is seeking a Senior Software Engineer on the Platform Development team to expand our data platform that powers... ...experiences. The role emphasizes building distributed C#/.NET applications, leveraging AWS, SQL Server, and modern observability...Senior
- ...with much of our work focused on Data Analytics, Mission Support, IT Modernization and Biometrics. AVER is seeking a Senior .Net Application Developer with in-depth knowledge and experience assisting with agile methodology development for software maintenance and operations...SeniorWork at office
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$98.5k - $184.9k
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$143k - $187k
...an invaluable edge in real estate. As a Senior Software Engineer on the Platform Development... ...believe that what separates a good developer from a great one is a deep understanding... ...maintainable; our primary tools are C#, .NET Framework, SQL Server, AWS. Utilize AI models...SeniorFull timeWork at officeWork from homeMonday to Thursday
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