Top C++ Jobs in Washington, DC

Develop and integrate advanced RF digital signal processing algorithms to detect, classify, track, and geolocate RF emissions. Work with recorded and synthetic I/Q data, SDR hardware (including RFSOC), and host processing platforms. Support algorithm modeling, software integration, testing, and field demonstrations while collaborating with cross-functional teams.

Develop and prototype interactive, data-driven applications for Digital Twin and modeling & simulation platforms. Build modular, microservices-based solutions across cloud and on-prem environments, integrate UI assets, implement backend APIs and databases, and collaborate with DevSecOps and senior engineers to evolve prototypes into production-ready systems supporting mission needs.

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.

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.

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.

Senior SAP IQ Database Administrator responsible for designing, implementing, optimizing, and administering SAP IQ database environments. Lead ETL development with SAP Data Services, build logical data models, write and optimize complex SQL, manage JDBC connections, support Linux and Windows platforms, handle diverse file formats, mentor staff, and enforce operational standards, governance, and documentation while collaborating with government stakeholders.

Develop and maintain Rust-based systems software for an autonomous drone platform. Design low-latency, high-reliability services across networking, protocols, embedded platforms, and AI/ML integration. Work with simulation environments and collaborate with ML engineers to enable autonomy features under constrained, real-world conditions.

Lead development, deployment, and optimization of maritime autonomy systems. Drive field testing, analyze mission data, integrate sensors and autonomy capabilities, resolve cross-disciplinary incidents, mentor teams, and author deployment protocols to ensure reliable operational performance.

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.

The M&S System Engineer will create immersive applications, utilizing design techniques and 3D engines to enhance training and simulation for government clients.

Design immersive experiences using 3D game engines and simulation software for federal and commercial clients, supporting training and operational insight.

Lead development of passive RF geolocation algorithms (TDOA, FDOA, interferometry) from first principles through simulation, real-time implementation, integration, calibration, and field validation. Build high-fidelity simulation environments, quantify performance under real-world impairments, and partner with hardware and systems teams to define RF/timing requirements and support field demonstrations.

Lead development and validation of advanced passive RF geolocation algorithms (TDOA, FDOA, interferometry). Build high-fidelity simulations, implement real-time software on DSP/GPU/FPGA, integrate with RF/SDR hardware, define RF/timing requirements, and support system calibration and field validation. Collaborate across engineering, production, and business teams; travel up to 30% and work on-site multiple days weekly.

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.

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.

Design, integrate, and deploy autonomy and vehicle intelligence systems on UAV platforms. Work spans hardware/software integration, sensor and autopilot interfacing, SIL/HIL testing, live flight tests, troubleshooting, and customer-facing demonstrations.

Lead engineering role integrating Applied Intuition's vehicle intelligence products with defense and government platforms. Own end-to-end technical execution, system deployment, OS configuration, hardware integration, architecture, and customer-facing integration to ensure mission success.

Lead design, development, enhancement, and maintenance of enterprise geospatial applications and APIs. Implement ArcGIS Enterprise solutions, web GIS apps, dashboards, integrations, and ensure compliance with federal IT, cybersecurity, and privacy requirements while guiding development teams and supporting testing, deployment, and O&M.

Design, develop, enhance, and maintain enterprise geospatial applications, web-based GIS interfaces, dashboards, workflows, and APIs; support ArcGIS Enterprise/Server, integrations, testing, deployment, performance tuning, documentation, cybersecurity, and user support within a federal environment.

The Senior Developer Technology Engineer will optimize GPU applications in the public sector by collaborating with developers, crafting parallel algorithms, and improving software stacks while ensuring high performance on GPUs.

The Senior Embedded Software Engineer will design and develop software for embedded systems, focusing on security, integration, and collaboration with hardware teams.

The Senior Embedded Software Engineer designs and develops low-level software for ARM-based hardware platforms, focusing on bare-metal development and security controls.

The Sailpoint Consultant will maintain and support SailPoint IIQ infrastructure, troubleshoot issues, develop scripts, and assist project teams with identity and access solutions.

Design and build a novel, highly scalable data infrastructure to aggregate and stage simulation outputs and user inputs for LLM consumption. Architect massive batch pipelines, complex relational data models, and low-latency distributed processing. Lead technical direction, solve ambiguous first-principles problems, and optimize data for downstream AI decision systems supporting government customers.

As a Missions Software Engineer, you'll collaborate with defense customers to integrate and operationalize vehicle intelligence products, tackling software engineering, hardware integration, and project execution challenges.