11 results for Senior C Developer in Washington, DC

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

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

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 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

GoLang Developer IV

Washington, DC
onsite
Temporary
78 - 83 USD / Hourly
GoLang Developer IV Service Type: 45 Week Contract, Potential for ExtensionLocation: Onsite/Hybrid Washington, DC Position OverviewWe are seeking a Senior (Level IV) GoLang Developer to lead development initiatives and deliver high‑quality solutions within a modern, distributed systems environment. This role emphasizes hands‑on Go development, cloud‑native technologies, and secure, scalable system design. The ideal candidate is self‑driven, technically strong, and comfortable taking ownership of complex initiatives.Key Responsibilities<ul><li>Lead design and development of new functional features using Go</li><li>Troubleshoot, debug, and resolve software defects</li><li>Maintain high standards of code quality, performance, and scalability</li><li>Refactor existing codebases to improve efficiency and maintainability</li><li>Decompose business requirements into clear technical tasks and estimate effort</li><li>Participate in solution design discussions and document technical decisions</li><li>Work with distributed systems, messaging platforms, and databases</li><li>Collaborate with cross‑functional teams to deliver reliable solutions</li></ul>
2026-04-02T00:00:00Z

Senior Infrastructure Role

McLean, VA
onsite
Temporary
100 - 110 USD / Hourly
Data Center Modernization – Cisco ACI Migration Lead the design, architecture, and full implementation of the new Cisco ACI fabric, facilitating the enterprise-wide migration from legacy NX-OS systems. Direct and execute the strategy for transitioning from NX-OS to Cisco ACI, including tenant setup, EPG development, policy creation, and fabric discovery. Configure and manage the Cisco Nexus Dashboard to achieve centralized visibility, operations management, and policy orchestration across the data center network. Supervise the SAN environment, ensuring optimal storage connectivity, zoning, and fabric health during and after the ACI migration. Create and maintain comprehensive migration runbooks, cutover roadmaps, and rollback procedures to guarantee operational continuity for mission-critical workloads. Work closely with cloud architects and application teams to enable effective integration between the upgraded data center fabric and AWS cloud platforms. Wireless Network Modernization – Wireless Refresh Support and help lead the enterprise Wireless Refresh project from initial design through deployment, establishing a robust, high-performing wireless infrastructure. Design and implement the updated wireless network with advanced Wireless Intrusion Prevention and Detection (WIPS/WIDS) to enhance security monitoring across all locations. Deploy and configure new Wireless LAN Controllers (WLCs) and Access Points (APs) for reliable coverage, capacity, and performance in geographically distributed areas. Utilize Cisco DNA Center services for optimization, policy enforcement, AI-driven analytics, and complete lifecycle management of the wireless network. Conduct site assessments, RF planning, and post-installation reviews to ensure wireless standards support operational requirements. Assist in developing wireless security configurations and policies following DISA STIGs, RMF, and DoD wireless security mandates. Cloud & Enterprise Infrastructure Architect, implement, and maintain scalable AWS cloud environments—including compute, storage, networking, and identity management—supporting key applications. Ensure infrastructure security by applying controls aligned with DISA STIGs, RMF, NIST 800-53, and DoD cloud requirements. Automate cloud infrastructure deployment and configuration with Infrastructure as Code tools such as Terraform, AWS CloudFormation, or comparable. Monitor health, performance, and security using AWS-native tools (CloudWatch, AWS Config, Security Hub) and third-party SIEM integrations. Support Authority to Operate (ATO) efforts, including generating security documentation, implementing controls, and aiding in assessments. Lead incident response, perform root cause investigations, and shape continuity plans for mission-essential systems.
2026-04-02T00:00:00Z

Software Engineering II

Gaithersburg, MD
onsite
Temporary
53 - 60 USD / Hourly
Locations: Gaithersburg, MD • Eagan, MN • Egg Harbor, NJSchedule: Hybrid (3 days onsite / 2 days remote)Clearance: Ability to obtain and maintain Public Trust (U.S. Citizenship required)OverviewWe are seeking a Junior Software Engineer with AI-enabled development experience to support a large-scale modernization program involving real‑time, high‑availability, safety‑critical systems. This role combines traditional software engineering with emerging AI‑augmented development techniques to enhance delivery, code quality, and system performance.This position is ideal for engineers who actively apply AI in their day‑to‑day workflow and want to contribute to a mission-critical, complex engineering environment. What You’ll Do<ul><li>Design, develop, test, and maintain software for real-time, high-availability systems.</li><li>Use AI-assisted development tools to accelerate coding, refactoring, debugging, and automated test generation.</li><li>Apply responsible AI practices across the full SDLC — requirements, design, implementation, testing, documentation, and code review.</li><li>Analyze complex system requirements and translate them into efficient, maintainable designs.</li><li>Develop and maintain automation scripts across development, test, and production environments.</li><li>Promote code quality, reuse, traceability, and cross-team collaboration.</li></ul>
2026-03-11T00:00:00Z

Senior Cost/Financial Analyst

Arlington, VA
onsite
Permanent
100000 - 120000 USD / Yearly
Our client is an well-established construction business with growing operations that is seeking a Senior Cost Analyst to join their expanding team in Arlington, Virginia. This role is integral to the construction accounting team, focusing on cost management, budgeting/forecasting, financial reporting, and collaboration with project executives. The ideal candidate will bring expertise in analyzing budgets and providing accurate projections to support decision-making and organizational success. Responsibilities:• Conduct comprehensive reviews and updates of budgets and job status reports for multiple construction projects on a monthly basis.• Deliver monthly profit projections and create dashboards to provide actionable insights for management.• Facilitate job status meetings with stakeholders and project teams to ensure accurate and timely reporting.• Provide guidance to entry-level cost engineers and other team members, fostering skill development and knowledge sharing.• Train office and field staff in the use of project management software, ensuring efficient system utilization.• Prepare and compile various monthly financial reports for senior leadership and company executives.• Analyze project costs to identify risks, opportunities for savings, and implement mitigation strategies.• Assist in the preparation of new construction project proposals, providing detailed cost analysis and recommendations.• Support project executives in managing subcontractor agreements, change orders, and cost reporting.• Audit and reconcile project performance using specialized project management software to ensure accuracy and compliance.
2026-04-01T00:00:00Z

Application Development Project Manager

Kensington, MD
onsite
Temporary
55 - 70 USD / Hourly
Position Overview We are seeking an experienced Application Development Project Manager to lead the planning, execution, and delivery of software development projects. This role is responsible for coordinating cross-functional teams, managing project timelines and budgets, and ensuring that application development initiatives align with business goals and technical requirements. The ideal candidate has strong experience managing the full software development lifecycle and working closely with engineering, product, and business stakeholders.Key Responsibilities<ul><li>Lead end-to-end application development projects from planning and requirements gathering through development, testing, deployment, and post-implementation support.</li><li>Collaborate with software developers, QA teams, product owners, and business stakeholders to define project scope, objectives, and deliverables.</li><li>Develop and manage project plans, timelines, budgets, and resource allocation to ensure projects are delivered on schedule.</li><li>Track project progress, manage risks and issues, and communicate status updates to leadership and stakeholders.</li><li>Facilitate Agile or Waterfall project management processes, including sprint planning, backlog grooming, and project reviews when applicable.</li><li>Coordinate cross-functional teams to ensure alignment between business requirements and technical implementation.</li><li>Ensure quality standards, documentation, and testing processes are followed throughout the development lifecycle.</li><li>Manage vendor relationships and third-party development partners when applicable.</li><li>Support change management, user adoption, and post-deployment improvements.</li></ul>
2026-03-06T00:00:00Z

Application Development Project Manager

Washington, DC
onsite
Temporary
55 - 70 USD / Hourly
Position Overview We are seeking an experienced Application Development Project Manager to lead the planning, execution, and delivery of software development projects. This role is responsible for coordinating cross-functional teams, managing project timelines and budgets, and ensuring that application development initiatives align with business goals and technical requirements. The ideal candidate has strong experience managing the full software development lifecycle and working closely with engineering, product, and business stakeholders. Key Responsibilities Lead end-to-end application development projects from planning and requirements gathering through development, testing, deployment, and post-implementation support. Collaborate with software developers, QA teams, product owners, and business stakeholders to define project scope, objectives, and deliverables. Develop and manage project plans, timelines, budgets, and resource allocation to ensure projects are delivered on schedule. Track project progress, manage risks and issues, and communicate status updates to leadership and stakeholders. Facilitate Agile or Waterfall project management processes, including sprint planning, backlog grooming, and project reviews when applicable. Coordinate cross-functional teams to ensure alignment between business requirements and technical implementation. Ensure quality standards, documentation, and testing processes are followed throughout the development lifecycle. Manage vendor relationships and third-party development partners when applicable. Support change management, user adoption, and post-deployment improvements.
2026-03-06T00:00:00Z

Application Development Project Manager

Fairfax, VA
onsite
Temporary
55 - 70 USD / Hourly
Position Overview We are seeking an experienced Application Development Project Manager to lead the planning, execution, and delivery of software development projects. This role is responsible for coordinating cross-functional teams, managing project timelines and budgets, and ensuring that application development initiatives align with business goals and technical requirements. The ideal candidate has strong experience managing the full software development lifecycle and working closely with engineering, product, and business stakeholders.Key Responsibilities<ul><li>Lead end-to-end application development projects from planning and requirements gathering through development, testing, deployment, and post-implementation support.</li><li>Collaborate with software developers, QA teams, product owners, and business stakeholders to define project scope, objectives, and deliverables.</li><li>Develop and manage project plans, timelines, budgets, and resource allocation to ensure projects are delivered on schedule.</li><li>Track project progress, manage risks and issues, and communicate status updates to leadership and stakeholders.</li><li>Facilitate Agile or Waterfall project management processes, including sprint planning, backlog grooming, and project reviews when applicable.</li><li>Coordinate cross-functional teams to ensure alignment between business requirements and technical implementation.</li><li>Ensure quality standards, documentation, and testing processes are followed throughout the development lifecycle.</li><li>Manage vendor relationships and third-party development partners when applicable.</li><li>Support change management, user adoption, and post-deployment improvements.</li></ul>
2026-03-06T00:00:00Z