Top Remote C++ Jobs in Washington, DC

The C# / .NET Developer will design and maintain middleware applications, build Shopify integrations, and support a mobile app backend in a remote work environment.

Contract Gameplay Systems Engineer responsible for designing, implementing, optimizing, and stabilizing data-driven gameplay AI systems in Unreal Engine. Collaborate with designers, animators, and QA to build enemy behaviors, navigation, perception, and decision logic; profile and optimize performance; document systems; write clean C++/Blueprint code; participate in reviews and sprints to move systems from MVP to production quality.

Design and implement embedded firmware and low-level software for server BMCs and GPU/HPC platforms. Enhance OpenBMC, enable real-time telemetry of power/thermal sensors, debug low-level drivers and interfaces, validate hardware-firmware integration, and contribute to long-term firmware architecture for cluster reliability.

As a Machine Learning Engineer in Computer Vision, you'll develop AI solutions using advanced algorithms, focusing on image classification, segmentation, and video processing tools.

The ML Engineer will leverage deep learning for natural language processing tasks, impacting Entefy's products while requiring strong machine learning fundamentals and NLP expertise.

Design and implement Wi‑Fi 6 (802.11ax) and 802.11s mesh networking software for enterprise access points. Develop HMAC components, optimize throughput/latency/airtime, integrate on NXP-based Embedded Linux platforms, maintain hostapd/wpa_supplicant/mac80211, debug with packet captures, and collaborate with RF/firmware/QA teams for product releases.

As an Applied R&D Engineer, you will develop backend application software in a Kubernetes environment, focusing on streaming APIs, system design, and code quality.

Design, build, deploy, and operate large-scale, highly available distributed systems for Twilio SendGrid. Improve scalability and security, implement reliable components, add monitoring, automate processes, and collaborate with product and engineering to deliver customer-focused features.

Lead verification testing for high-speed coherent and direct-detect photonic components and subsystems. Design test plans/algorithms, execute module performance validation, and collaborate with PIC, ASIC, module, and system teams to ensure quality product releases.

Own and scale the search, indexing, and data-scanning infrastructure for petabyte-scale data. Optimize hybrid lexical and vector retrieval for sub-second latency, design cost-effective hot/warm/cold data tiering and massive asynchronous scans, drive down latency and cost, and provide technical leadership for resilient, highly available indexing and retrieval systems.

Develop, optimize, and integrate 5G NR L2/L3 protocol stacks (MAC, RLC, PDCP, RRC, NGAP). Implement scheduling, HARQ, buffer management, and mobility features. Debug protocols using tracing tools and integrate L2/L3 with PHY and 5GC to improve throughput, latency, and handover performance.

Build and maintain developer platform tooling that ensures SIL-4 safety compliance: automation for certification evidence, CI/CD improvements, Bazel build maintenance, lightweight web dashboards, developer workflow automation, monitoring, and on-call support.

Lead design and implementation of the audio engine for Splice's DAW plugins and desktop app. Drive complex technical initiatives, propose and implement cross-stack solutions, optimize performance, mentor engineers, author RFCs, and collaborate with product and design to shape user experience and roadmap. Deliver high-quality, production-ready audio software under tight deadlines.

Design and build the Command & Control frontend and full-stack features for large heterogeneous UAV swarms. Develop distributed, real-time infrastructure tolerant of intermittent communications, implement UI concepts for telemetry, sensors, scheduling and data links, own features end-to-end, and maintain strong CI/CD, QA, and DevSecOps practices.

Senior graphics engineer responsible for building and maintaining production-quality C++ gameplay systems in Unreal Engine 5, evolving rendering systems (lighting, materials, particles, post-process, shadows), collaborating with artists to implement stylized rendering and shaders, optimizing CPU/GPU/memory performance, and diagnosing/fixing graphics and pipeline issues.

Lead and manage engineers to design, build, and maintain production backend game services (sessions, matchmaking, progression). Diagnose incidents, participate in on-call, collaborate with cross-discipline teams, and produce clear technical documentation.

Improve and maintain automated build systems for a game team. Develop build software (Unreal Engine 5, primarily C#), monitor CI/CD health, provision on‑prem and cloud build resources, troubleshoot build failures, enable internal workflows, and collaborate with release and test teams to publish builds and test results.

The role involves developing cloud-native database solutions, particularly focusing on autoscaling functionality, and collaborating with various teams to enhance cloud infrastructure and performance.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

Lead the design, development, and deployment of autonomous systems for heavy construction equipment while mentoring engineering teams and improving system performance.

Design, develop, verify, and deliver flight control laws (CLaws) and related assessment tools for FBW aircraft using MATLAB/Simulink and C++. Support autopilot/navigation design, V&V to DO-178B and ARP4754, pilot‑in‑the‑loop evaluation, failure analysis, and integration with test rigs and supplier hardware.

Develop and maintain calibration, automation, and tooling software for quantum processors. Design and implement front-end and back-end systems, APIs, and databases; troubleshoot performance issues; collaborate with scientists and engineers; and mentor junior engineers.

Design and implement custom Android system services, AIDL interfaces, and hardware abstractions for headless AOSP devices. Build system-level features in Kotlin/Java/Rust/C++, diagnose OS-level memory and concurrency issues, create CTS/VTS tests and update pipelines, and perform root-cause analysis on tombstones and kernel logs across Qualcomm-based hardware.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.