Top C++ Jobs in Washington, DC

Work on customer-facing, high-impact projects as an intern FDSE: design and implement data-driven solutions, wrangle large-scale data, build web apps, discuss architecture, and own end-to-end execution while collaborating with technical and non-technical stakeholders. May require travel and US government background checks.

Work onsite with customers to design and build data-driven solutions end-to-end. Responsibilities include architecture, data wrangling at scale, coding web apps, collaborating with technical and non-technical stakeholders, and traveling to client sites to deploy and iterate solutions.

Work directly with defense customers to design, build, and deploy data-driven solutions. Tasks include architecture, large-scale data wrangling, coding custom web apps, collaborating with technical and non-technical teams, and owning end-to-end, client-facing projects. Internship involves on-site client work and potential travel.

Serve as the technical lead modernizing mission-critical defense software: deploy and extend agentic modernization platforms, analyze large codebases, design scalable architectures, ensure RMF/NIST-compliant deployments, and deliver production-ready solutions in classified environments.

Lead development of autonomy capabilities for space platforms including distributed optimization, tasking/scheduling, track fusion, RPO and motion planning. Build high-performance, well-tested software, integrate on real vehicles, support deployments and testing, and research/roadmap advanced autonomy techniques for defense applications.

Lead development of space autonomy capabilities including distributed optimization, tasking/scheduling, track fusion, rendezvous/RPO, and motion/behavior planning. Build high-performance, testable software, integrate and validate on real platforms, support deployments, and mentor engineers while contributing R&D and roadmaps.

Design, implement, and deploy autonomy capabilities for space platforms including distributed optimization, tasking/scheduling, track fusion, RPO, and motion/behavior planning. Build high-performance, well-tested software modules, collaborate across perception, planning, simulation, hardware, and flight test teams, support deployments and mission log analysis, and contribute R&D and roadmaps to advance autonomy for satellites and missile defense.

Seeking a Staff Storage Engineer to design and build control plane for an AI storage platform, focusing on scalability and performance across diverse environments.

Design, build, and maintain GenAI-enabled developer tooling and integrations (GitLab, Jira, Confluence) to accelerate C++, Python, and Node.js engineering workflows. Create secure LLM harnesses, containerized local environments, automation, and reproducible builds (Nix). Partner with robotics/autonomy teams to remove friction, improve build/test/dev environments, and support adoption with documentation and troubleshooting.

Lead architecture and implementation of high-performance C++ and Python systems, integrate distributed and real-time systems, own CI/CD and build tooling, debug multi-threaded systems, guide cross-team integration and mentor engineers, and evaluate new technologies to improve simulation and autonomy platforms.

Lead design and implementation of modernized insurance underwriting and policy administration solutions. Drive cloud transformation, data-driven and secure architectures, improve risk selection and claims resolution, enhance customer experience through automation, mentor technical teams, manage client relationships, and oversee project lifecycle, budgets, and delivery quality.

Design, implement, deploy, and operate large-scale distributed backend systems and Azure infrastructure for AI-driven insights. Apply generative AI/ML, build IaC and CI/CD pipelines, support live-site operations, and execute onboarding and operational tasks for GCC‑High/DoD environments while ensuring security, observability, and cross-team collaboration.

As a Staff Software Engineer, you will lead the development of Apache Iceberg, enhancing data handling capabilities for large-scale systems, collaborating with teams, and architecting solutions for modern data lakes.

Leads cross-functional platform engineering initiatives supporting Unity on Android devices. Designs architectures, optimizes runtime performance, establishes benchmarks, resolves complex system-level issues, mentors engineers, contributes to platform roadmaps, documents technical decisions, and participates in design reviews. The role requires advanced C++, C#, and Android systems programming expertise, strong knowledge of computer architecture, multithreading, debugging, profiling, and large-scale platform or runtime systems.

Designs and integrates robotic autonomy and vehicle intelligence systems across hardware and software. Responsibilities include deploying autonomy solutions on embedded Linux and UAV platforms, integrating autopilots, sensors, datalinks, and ground stations, troubleshooting system issues, conducting SIL/HIL testing, supporting live flight tests, and collaborating with vendors, autonomy engineers, and defense customers. Frequent travel supports on-site integration and demonstrations.

Develop and deploy drone autonomy software on embedded platforms and real UAVs. Integrate autonomy stacks with autopilots, datalinks, sensors, navigation systems, and ground control stations. Perform hardware and software bring-up, SIL/HIL testing, live flight tests, troubleshooting, and customer demonstrations. Collaborate with autonomy engineers, defense customers, and UAS vendors to deliver reliable vehicle intelligence systems.

Design, integrate, and deploy autonomy software on UAV platforms across SIL/HIL and live tests. Interface with sensors, autopilots, datalinks, and embedded Linux systems; troubleshoot integrations; collaborate with vendors and DoD customers; support flight testing and demonstrations.

Develop and enhance GIS capabilities within a core C++ OMS application, configure map services, design cartography, integrate spatial databases, resolve spatial data issues, and collaborate with product teams using Jira and GitHub.

Design, develop, configure, and maintain customized content management solutions using Drupal, WordPress, and related technologies. Build modules, plugins, workflows, APIs, integrations, and custom themes; support content migration and site maintenance; test interfaces and components; address code review findings; and develop technical specifications in a collaborative Agile environment. The role also involves supporting legacy enterprise systems and delivering integrated solutions for clients.

Develop and integrate software command-and-control solutions for satellite vehicles. Integrate satellites and flight software into a mission management platform, decompose customer mission requirements, troubleshoot hardware-software interfaces, and support scalable product solutions. The role requires expertise in embedded software, satellite protocols, command and telemetry standards, encryption, cloud services, and version control, along with strong customer communication and independent problem-solving skills.

Design, build, and maintain systems-level Rust software for an AI-powered autonomous drone platform. Integrate AI/ML pipelines, develop networking and protocol components, support autonomy features, and create reliable software for resource-constrained, low-latency environments. Develop and test through simulation while collaborating with ML engineers and contributing across application and systems layers.

Lead the design and development of Windows desktop applications, ensuring performance, accessibility, and collaboration with various teams. Oversee the entire feature lifecycle and address complex issues in a user-centric manner.

Develop foundational XR support in the Unity Engine by integrating third-party SDKs, collaborating with platform partners, and implementing performant rendering and platform-compatibility solutions. Investigate and fix bugs, write automated tests, participate in code reviews, and mentor other engineers to maintain high code quality.

As a Datacenter System Software Architect at SiFive, you'll design RISC-V Linux systems for datacenters, engage with customers, and optimize performance across software and hardware.

Lead end-to-end integration and deployment of vehicle intelligence products for defense customers, spanning software engineering, OS configuration, system deployment, and hardware integration. Design scalable architectures, collaborate with product and engineering teams, and own technical outcomes in fast-changing, operational environments to ensure mission success.