14 results for Senior Vbnet Developer in Chantilly, VA

Senior Software Engineer

Gaithersburg, MD
onsite
Temporary
88 - 93 USD / Hourly
Robert Half is seeking a Senior Software Engineer with AI‑enabled development experience to support the modernization of a real-time, high-availability air traffic management platform. This role offers the opportunity to work on safety-critical systems that directly support national airspace operations in a collaborative, mission-driven environment.You will contribute to the development and sustainment of complex software systems using both traditional systems engineering practices and AI‑augmented development techniques throughout the Software Development Life Cycle (SDLC). Key Responsibilities:<ul><li>Design, develop, test, and maintain software for real-time, high-availability systems</li><li>Apply AI-assisted development tools to accelerate coding, refactoring, debugging, and automated test generation</li><li>Utilize AI responsibly across the full SDLC including:</li><li>Requirements analysis</li><li>System design</li><li>Implementation</li><li>Testing</li><li>Documentation</li><li>Code review</li><li>Analyze complex system requirements and translate them into efficient, maintainable software designs</li><li>Develop and maintain automation scripts across development, test, and production environments</li><li>Promote code quality, reuse, traceability, and cross-team collaboratio</li></ul>
2026-03-10T00:00:00Z

Full Stack Developer

Washington, DC
onsite
Temporary
60.9 - 69.39 USD / Hourly
We are currently seeking a contract Full Stack Developer with a matrix skill set to join our project-driven technology team. This is a unique opportunity to lend your expertise to exciting initiatives, contribute to automation and innovation, and collaborate with cross-functional groups. The ideal candidate is equally comfortable working on both the front-end and back-end, and enjoys a fast-paced environment where adaptability and clear communication are valued.Key Responsibilities:<ul><li>Design, develop, test, and deploy robust applications across the full technology stack.</li><li>Work closely with stakeholders to clarify requirements and deliver technical solutions in line with project goals.</li><li>Participate in continuous integration, automation workflows, and DevSecOps practices to ensure quality and security.</li><li>Apply skills in AI integration, machine learning, and enterprise software applications as needed.</li><li>Maintain and optimize cloud-based environments (such as Microsoft Azure).</li><li>Utilize modern tools such as Apache Kafka, Databricks, Power BI, Splunk, and Terraform.</li><li>Leverage problem-solving and critical-thinking skills to address project challenges.</li><li>Demonstrate adaptability and pursue continuous learning to keep up with the latest technologies.</li></ul>
2026-03-03T00:00:00Z

Full Stack Developer

McLean, VA
onsite
Temporary
59.91 - 68.24 USD / Hourly
We are currently seeking a contract Full Stack Developer with a matrix skill set to join our project-driven technology team. This is a unique opportunity to lend your expertise to exciting initiatives, contribute to automation and innovation, and collaborate with cross-functional groups. The ideal candidate is equally comfortable working on both the front-end and back-end, and enjoys a fast-paced environment where adaptability and clear communication are valued.Key Responsibilities:<ul><li>Design, develop, test, and deploy robust applications across the full technology stack.</li><li>Work closely with stakeholders to clarify requirements and deliver technical solutions in line with project goals.</li><li>Participate in continuous integration, automation workflows, and DevSecOps practices to ensure quality and security.</li><li>Apply skills in AI integration, machine learning, and enterprise software applications as needed.</li><li>Maintain and optimize cloud-based environments (such as Microsoft Azure).</li><li>Utilize modern tools such as Apache Kafka, Databricks, Power BI, Splunk, and Terraform.</li><li>Leverage problem-solving and critical-thinking skills to address project challenges.</li><li>Demonstrate adaptability and pursue continuous learning to keep up with the latest technologies.</li></ul>
2026-03-03T00:00:00Z

Full Stack Developer

Rockville, MD
onsite
Temporary
61.09 - 68.59 USD / Hourly
We are currently seeking a contract Full Stack Developer with a matrix skill set to join our project-driven technology team. This is a unique opportunity to lend your expertise to exciting initiatives, contribute to automation and innovation, and collaborate with cross-functional groups. The ideal candidate is equally comfortable working on both the front-end and back-end, and enjoys a fast-paced environment where adaptability and clear communication are valued.Key Responsibilities:<ul><li>Design, develop, test, and deploy robust applications across the full technology stack.</li><li>Work closely with stakeholders to clarify requirements and deliver technical solutions in line with project goals.</li><li>Participate in continuous integration, automation workflows, and DevSecOps practices to ensure quality and security.</li><li>Apply skills in AI integration, machine learning, and enterprise software applications as needed.</li><li>Maintain and optimize cloud-based environments (such as Microsoft Azure).</li><li>Utilize modern tools such as Apache Kafka, Databricks, Power BI, Splunk, and Terraform.</li><li>Leverage problem-solving and critical-thinking skills to address project challenges.</li><li>Demonstrate adaptability and pursue continuous learning to keep up with the latest technologies.</li></ul>
2026-03-03T00:00:00Z

Web Developer

Washington, DC
remote
Temporary
47.8135 - 55.363 USD / Hourly
Job Summary:We are seeking a creative and detail-oriented Front-End Web Developer with a strong background in Figma and experience working with Content Management Systems (CMS). The ideal candidate will be responsible for translating UI/UX designs into responsive, high-performance web interfaces and maintaining CMS-driven websites.Key Responsibilities:<ul><li>Collaborate with designers to convert Figma mockups into pixel-perfect, responsive web pages.</li><li>Develop and maintain front-end components using HTML, CSS, JavaScript, and modern frameworks (e.g., React, Vue.js).</li><li>Integrate and customize CMS platforms such as WordPress, Drupal, or Contentful.</li><li>Ensure cross-browser compatibility and optimize performance across devices.</li><li>Work closely with back-end developers to implement APIs and dynamic content.</li><li>Conduct regular website maintenance, updates, and troubleshooting.</li><li>Stay current with emerging web technologies and best practices.</li></ul>
2026-03-04T00:00:00Z

Software Developer

Washington, DC
onsite
Permanent
125000 - 150000 USD / Yearly
We are looking for a skilled Software Developer to join our team in Washington, District of Columbia. In this role, you will focus on creating and optimizing solutions using the Microsoft Power Platform while collaborating with stakeholders to address business needs. This position offers an exciting opportunity to leverage your expertise in software development to drive innovative and efficient solutions. Responsibilities: • Collaborate with stakeholders, project managers, and technical teams to identify requirements and translate them into Power Platform solutions. • Design and develop custom applications using Power Apps, ensuring smooth integration with existing systems. • Create automated workflows using Power Automate to enhance business processes and minimize manual efforts. • Develop and deploy conversational AI experiences with Copilot Studio to address organizational needs. • Utilize programming languages such as JavaScript, Power Fx, and C# to build efficient and scalable solutions. • Ensure that all solutions align with organizational goals and meet performance standards. • Provide technical support and troubleshooting for Power Platform applications to maintain operational efficiency. • Stay updated on emerging technologies and tools within the Microsoft ecosystem to continuously improve solutions. • Collaborate with cross-functional teams to ensure successful implementation and delivery of projects.
2026-03-03T00:00:00Z

GoLang Developer IV

Washington, DC
onsite
Temporary
78 - 83 USD / Hourly
Position OverviewWe are seeking a Golang Developer IV to lead technical initiatives, deliver high‑impact results, and contribute to architectural and platform‑level decisions. This senior‑level role requires deep expertise in Golang, distributed systems, security, Linux internals, and modern cloud‑native development. The ideal candidate is a self‑driven leader, capable of mentoring others, influencing design direction, and developing complex services within large‑scale distributed environments.This role requires hands‑on coding, debugging, modernization, and proactive ownership of platform components. Experience with infrastructure tooling, security frameworks, and multi‑cloud environments is essential. Key ResponsibilitiesLeadership & Engineering<ul><li>Lead engineering initiatives from concept to delivery</li><li>Drive technical decision‑making and mentor junior developers</li><li>Own end‑to‑end development of Golang‑based services and system components</li><li>Break down business requirements into small, actionable technical tasks</li><li>Set coding best practices, code‑review standards, and quality guidelines</li></ul>Core Development Responsibilities<ul><li>Develop new features and backend services in Golang</li><li>Debug, diagnose, and resolve complex software defects</li><li>Reverse‑engineer legacy codebases to evaluate and refactor functionality</li><li>Participate in design sessions, analyzing architectural tradeoffs and solution options</li><li>Maintain strong documentation across solutions, APIs, and workflows</li><li>Build high‑performance components for large‑scale distributed systems</li></ul>
2026-02-25T00:00:00Z

Front-End Web Developer

Springfield, VA
onsite
Temporary
50 - 55 USD / Hourly
Our client in the Washington, DC region is seeking a talented Front-End Web Developer (FEWD) to support ongoing digital initiatives. This role is ideal for a developer who blends clean, modern UI development with strong attention to detail and a passion for building intuitive, responsive user experiences.You’ll collaborate with designers, product teams, and back-end developers to bring digital products, websites, and interactive features to life. Key Responsibilities<ul><li>Develop responsive, accessible, and high‑performance web interfaces</li><li>Translate UI/UX wireframes and design comps into clean, maintainable code</li><li>Build reusable components and front-end libraries</li><li>Collaborate with designers, product managers, and engineering teams</li><li>Optimize applications for speed, scalability, and cross‑browser compatibility</li><li>Maintain and update existing websites, landing pages, and digital assets</li><li>Troubleshoot UI issues and implement front-end best practices</li><li>Ensure compliance with accessibility standards (WCAG, Section 508)</li></ul>
2026-03-16T00:00:00Z

Senior Solutions Architect

Arlington, VA
remote
Permanent
140000 - 150000 USD / Yearly
We are looking for an experienced Senior Solutions Architect to join our team in Arlington, Virginia. In this role, you will play a key part in designing and implementing enterprise-level solutions, with a focus on Salesforce architecture and integration strategies. This position requires a deep understanding of software development principles and the ability to align technical solutions with organizational goals. Responsibilities: • Develop and refine enterprise and solution architecture strategies that align with organizational objectives. • Create scalable roadmaps for Salesforce and integrated systems to support business and operational needs. • Define and advocate for architecture principles that enhance DevSecOps practices, system reliability, and continuous delivery. • Act as a subject matter expert for Salesforce architecture, configuration, and integration methodologies. • Contribute to governance practices, security assessments, and compliance reviews for the platform. • Manage and oversee release processes and deployment activities for Salesforce and connected systems. • Collaborate with cross-functional teams to ensure seamless integration and functionality of software solutions. • Provide technical guidance and mentorship to development teams on best practices and standards. • Analyze and resolve complex technical challenges related to system architecture and integration.
2026-02-26T00:00:00Z

Software Development IV

Arlington, VA
onsite
Temporary
94.87 - 94.87 USD / Hourly
This role supports a key Federal defense program and is responsible for developing, maintaining, and enhancing complex software applications and frameworks across the full software release lifecycle. This role requires expert-level technical proficiency, strong problem-solving abilities, and the ability to contribute to multiple technical domains concurrently.This position works onsite in Arlington, VA, collaborating closely with an all-onshore engineering team. Ideal candidates will be able to quickly ramp up in a fast-paced environment and hit the ground running. Key Responsibilities:· Analyze, design, develop, and update software for new features, system enhancements, and performance improvements.· Write, maintain, and document high-quality C++ source code.· Develop solutions for complex technical problems affecting multiple systems and disciplines.· Implement and maintain communication interfaces using protocols such as TCP/IP, UDP, and DDS.· Work within the Linux operating system at an advanced level.· Support containerization and automated deployment using Docker and Kubernetes (RKE2).· Collaborate across engineering, operations, and integration teams to support software deployments.· Utilize software source control and configuration management tools.
2026-03-16T00:00:00Z

Software Engineer

Washington, DC
onsite
Temporary
50 - 65 USD / Hourly
Job Title: Software Engineer (Microsoft Stack / .NET)Location: Washington, DC Company: Robert Half Tech Focus: .NET 10/11, Azure, Blazor, and AI-Integration Role OverviewYou will be responsible for designing and developing the next generation of enterprise applications that power the District’s most critical industries. In 2026, our "Microsoft Stack" isn't just about the backend; it's a full-stack journey using Blazor for interactive UIs, .NET Aspire for cloud-ready distribution, and Azure OpenAI to build intelligent features directly into the business workflow.
2026-02-16T00:00:00Z

Software Development III

Arlington, VA
onsite
Temporary
75.24 - 75.24 USD / Hourly
This role is part of a technical sub-family responsible for writing and maintaining source code, building and maintaining software applications, and applying frameworks involved in the software release lifecycle. This includes programming, documentation, configuration management, testing, debugging, and overall stewardship of applications and frameworks that become production-ready software products.This role works independently on day-to-day objectives and is responsible for delivering high-impact results across projects or technical areas. This position may also coach and review work performed by junior or lower-level technical staff. Key Responsibilities:· Analyze, design, develop, and update software to support new features and system performance improvements.· Develop high-quality C++ applications in a Linux-based environment.· Implement and maintain communication interfaces and protocols including TCP/IP, UDP, and DDS.· Utilize Docker and Kubernetes (RKE2) for containerization, orchestration, and deployment automation.· Collaborate closely with cross-functional engineering teams to support deployments and integrations.· Apply strong understanding of Linux system internals for troubleshooting and development.· Manage and maintain software source control and configuration using industry‑standard tools.· Contribute to solution design discussions, influencing process and approach for the broader team.
2026-03-16T00:00:00Z

Software Architect

Washington, DC
onsite
Temporary
80 - 84 USD / Hourly
Position OverviewWe are seeking a Software Architect who can both deliver and “sell” the technical vision—someone who is equally comfortable architecting solutions and communicating them to business stakeholders and executives. You will create architecture blueprints, define application frameworks, and guide the integration of applications across a complex enterprise ecosystem. This role is 100% onsite in Washington, DC and requires strong stakeholder engagement, clear verbal/written communication, and the ability to discuss emerging technologies and their practical application. Key Responsibilities<ul><li>Enterprise Architecture Leadership: Lead the design and implementation of the enterprise application architecture strategy aligned to business and IT goals.</li><li>Solution Delivery Ownership: Oversee the full lifecycle of enterprise applications—from ideation and design through deployment and operational support.</li><li>Systems Integration: Define and validate integration patterns across platforms and systems for high availability and interoperability (APIs, microservices, messaging).</li><li>Cloud Architecture: Architect cloud‑native and hybrid solutions on AWS, Azure, or Google Cloud, optimizing for scalability, security, reliability, and cost.</li><li>Technical Evangelism: Present architecture options and trade‑offs to stakeholders; “sell the vision” and secure alignment across technical and non‑technical audiences.</li><li>Standards & Governance: Produce architecture documentation (technical specs, process flows, integration patterns); contribute to standards, guardrails, and best practices.</li><li>Performance & Reliability: Guide teams on non‑functional requirements (performance, security, observability, availability, DR).</li><li>Team Collaboration: Partner with engineering, product, and operations; mentor developers and influence sprint goals, estimates (including sprint pointing), and delivery quality.</li></ul>
2026-02-19T00:00:00Z

Software Engineer in Test (SDET) – Java (Backend)

Washington, DC
onsite
Temporary
50 - 55 USD / Hourly
Software Engineer in Test (SDET) – Java (Backend)Hybrid – Washington, DC Job SummaryWe’re hiring a Software Engineer in Test (SDET) who can write automation code in Java and owns the full backend testing lifecycle for modern service-based systems. This role is 100% backend (no UI/front-end testing) and focuses on validating microservices and APIs running in a containerized environment. You’ll work closely with engineering and product teams to identify risk early, build reliable automated coverage, and speak up when something isn’t ready.Responsibilities<ul><li>Build and maintain Java-based automated tests for backend services and APIs.</li><li>Execute and improve the end-to-end testing process (test planning, test execution, defect validation, regression).</li><li>Test microservices and distributed systems, including service-to-service behavior and integration points.</li><li>Validate REST APIs and troubleshoot issues through logs, debugging, and structured investigation.</li><li>Support performance testing using Gatling; expand/maintain performance suites as needed.</li><li>Collaborate with engineers and stakeholders to raise concerns, communicate risk, and drive quality decisions.</li><li>Work with internal tooling used for automation and testing (no required external framework experience—strong fundamentals matter most).</li><li>Contribute to quality improvements across deployments and releases in Kubernetes environments.</li></ul>
2026-03-18T00:00:00Z