Top Remote C++ Jobs in Washington, DC

Design and scale high-performance Ethernet and InfiniBand fabrics for hyperscale AI training clusters. Develop ROCE transport and congestion-control mechanisms, topology and routing strategies, telemetry and observability, cluster bring-up, benchmarking, tuning, and cross-vendor co-design to enable low-latency, lossless networks at 10k–100k+ GPU scale.

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.

Develop, design, and implement code for Azure hyperscale WAN features; gather requirements, estimate and decompose work, participate in on-call DRI duties, monitor reliability and performance, and troubleshoot large-scale distributed systems.

Design and implement scalable first-mile networking solutions for Microsoft 365 Substrate and COSMIC. Drive design, dependency identification, coding, optimization, debugging, and on-call monitoring. Analyze production telemetry to improve reliability, performance, and observability. Act as a DRI, lead design and release plans, and collaborate with stakeholders to meet product requirements at global scale.

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.

Lead architecture, design, and implementation of a cloud-native, event-driven TFDM platform using Kafka and streaming technologies. Drive AI-assisted development, containerization, IaC, CI/CD, and production reliability. Provide hands-on development, mentoring, troubleshooting, executive briefings, and oversight across integrations, security, testing, and deployments.

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 and scale the Trade engineering organization, owning technical vision, architecture, and roadmap for trading systems (matching engines, order/execution infrastructure, market data, FIX). Hire and develop senior engineering talent, ensure reliability/performance/risk controls, partner with product, compliance, risk, and legal, and make high-level build-vs-buy and architecture decisions while remaining technically hands-on.

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.

Develop and deploy onboard swarm autonomy: perception, planning, control, multi-target tracking, inter-robot/C2 protocols, on-vehicle software integration, realistic UxS simulation, train and test ML-based target recognition, and electronics prototyping. Travel for test events up to 25%.

Design, build, and maintain production-quality gameplay systems, workflows, and designer/artist-facing tools in C++ on Unreal Engine 5. Provide technical guidance to teammates to integrate with simulation and networking, and collaborate daily with content creators and the engine team to enable efficient content creation.

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.