.NET Developer
Senior full-stack Developer III designing, building, and maintaining mission-critical enterprise web applications for federal government clients using .NET/C#, React, and RESTful APIs, while building CI/CD pipelines, deploying on Azure, and mentoring developers in Agile/DevSecOps delivery.
- Compensation
- Not disclosed
- Location
- Washington, DC
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Full time
- Experience
- Not specified
- Category
- Software engineering
- Posted
Skills
Must have
- Bachelor's degree in Computer Science, Information Systems, Software Engineering, or related field, or equivalent experience
- Six or more years of progressively responsible experience in software development, web application development, and application O&M
- Full-stack web development experience with C#, current .NET platforms, React, JavaScript, HTML, and RESTful APIs
- Experience supporting existing enterprise applications: production troubleshooting, root-cause analysis, defect remediation, performance optimization, technical-debt reduction
- Ability to establish and maintain CI/CD pipelines for automated builds, code-quality checks, testing, packaging, deployment, and release validation
- Working knowledge of secure software development practices (code review, vulnerability remediation, secrets handling, access controls, change management)
- Ability to meet Public Trust suitability requirements and U.S. citizenship requirements
Nice to have
- Experience with Azure services: Azure App Service, Azure Key Vault, application monitoring, telemetry, cloud-hosted deployment and troubleshooting
- Familiarity with Azure Data Lake Storage concepts: structured/unstructured storage, hierarchical namespace patterns, access controls, analytics integration
- Azure Developer Associate, Azure DevOps Engineer Expert, or comparable cloud/DevSecOps certification
- Experience with infrastructure as code, containerized application delivery, observability tooling, and AI-enabled coding tools with appropriate review and security controls
Full description
We are a federal IT company on a mission to make customer experience (CX) the center of every government solution.
Technology is our Passion. People are our Purpose.
We know tech, but we love people. NuAxis is home to thinkers and feelers; engineers and artists. We work hard and support each other along the way. Teamwork is more than just a buzzword for us, it’s a state of mind.
We believe happy employees do amazing work, so join our team NOW! We are currently seeking a talented and motivated UI/UX Developer for a Full-Time position.
Position Overview
The Developer III leads the design, enhancement, operation, and maintenance of complex enterprise software applications supporting mission-critical business operations in a regulated client environment. This role translates functional requirements into secure, scalable, maintainable application components and technical designs using modern React and .NET technologies.
The position provides senior-level technical leadership through peer reviews, complex defect resolution, performance optimization, mentoring, and adherence to Agile and DevSecOps delivery practices. The Developer III also builds and supports automated delivery pipelines that validate, test, package, deploy, and monitor changes across controlled application environments.
Key Responsibilities
- Lead the design, development, enhancement, testing, deployment, and maintenance of complex full-stack software applications using current .NET platforms, C#, RESTful APIs, and React-based user interfaces.
- Translate functional requirements into secure technical designs, reusable components, data-access patterns, interface contracts, development estimates, and implementation plans.
- Assess existing application architecture, isolate and resolve complex production defects, remediate technical debt, and improve application reliability, maintainability, performance, and response times.
- Design, implement, and maintain CI/CD pipelines that perform pull-request validation, linting, builds, unit and integration testing, artifact packaging, controlled deployment, and release verification.
- Apply secure software delivery practices, including code reviews, dependency and vulnerability remediation, secrets management, access controls, audit-ready change management, and automated quality gates.
- Use Azure cloud services to host, deploy, monitor, troubleshoot, and scale enterprise applications, leveraging application telemetry and monitoring data to support operational reliability.
- Collaborate with architects, business analysts, product owners, and cross-functional delivery teams to define requirements, resolve technical blockers, and deliver high-quality solutions in Agile environments.
- Mentor less-experienced developers, establish and reinforce engineering standards, conduct peer reviews, and provide technical guidance across application operations, maintenance, and modernization activities.