Top Senior C++ Jobs in San Diego, CA

Design, implement, and operate low-latency, high-throughput C++, Go, and Python services for real-time sensor ingestion, tracking, inference, and data pipelines. Build IPC/messaging interfaces, optimize data structures and Protobuf serialization, deploy containerized services on Kubernetes (Argo/Helm) in GCP, and implement observability, testing with historic/simulated data, and end-to-end O&M.

Embed with U.S. government and military customers to deploy, integrate, debug, and maintain C2 software in austere operational environments. Build integrations, troubleshoot distributed systems, contribute to core services, support on-call and nonstandard hours, and travel extensively to ensure mission reliability and deliver field-driven product improvements.

Research and develop techniques to accelerate large-scale applications on advanced CPU platforms. Analyze and optimize database and analytics workloads for CPU performance, collaborate with internal and external experts, publish findings, and influence next-generation hardware/software design.

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.

Plan, coordinate, and execute system-level dry-run and formal tests for hardware and software ground and flight release. Develop test strategies, procedures, and requirement-to-test traceability; analyze results; support lab operations and integration testing; apply Agile testing practices; collaborate across systems, software, hardware, cybersecurity, and networking teams; report findings to leadership. Support on-site shifts and moderate international travel for test events.

Lead operations analysis, modeling and simulation (ModSim) efforts to support trade studies, mission effectiveness, and requirements. Develop physics-based RF algorithms, analytical models, and scripts (MATLAB/Python/C++/Java). Analyze Monte Carlo and sensitivity studies, visualize results, document findings, and present to technical and leadership stakeholders while supporting SAP and Top Secret environments.

Lead a 10-20 person software team through full SDLC in an Agile environment. Coordinate with systems, test, DevSecOps, and program leads to deliver real-time/mission-critical embedded software, manage performance metrics, and ensure program and functional objectives are met.

Design, develop, and deliver Java JEE middle-layer enterprise solutions in a SOA environment. Collaborate with systems, cloud, DevSecOps, and test teams in Agile SDLC, implement object-oriented designs, JMS, web services, XML technologies, and participate in integration, testing, and release activities. On-site San Diego role requiring Top Secret clearance and SAP access.

Develop and maintain proprietary UI editor and related tools for console games. Implement features, support fonts/localization and PC development, profile and tune performance, provide technical support, and collaborate with designers, artists, and programmers to improve UI tooling and pipelines.

As a Database Reliability Engineer at ClickHouse, you'll improve reliability, manage escalation processes, support incident response, and enhance database performance while collaborating across teams.

Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.

As a Senior Software Architect for AI Networking, you'll design and implement AI networking technologies, optimize data processing in AI systems, and collaborate on cutting-edge solutions.

Manage a team developing accelerated image and data compression libraries. Define project goals, roadmap, and scope; ensure execution and delivery; elevate engineering practices; collaborate with internal and external customers and the open-source community while fostering an inclusive, innovative environment.

Design and implement core components of networking systems at Ditto, focusing on transport protocols, performance, and modular architecture.

Optimize Ubuntu integration across latest IoT and server-class hardware, lead customer engagements, and work with open source communities in a remote, collaborative environment.

Design and implement a shared Rust core used across desktop, mobile, and backend. Drive architecture decisions around CRDTs and distributed systems, integrate Rust components with frontend/mobile/backend teams, and improve performance, reliability, and maintainability.

Lead design and implement deep mobile platform integrations (primarily iOS) across the Graykey product. Debug across layers (Python, native C/C++, OS userspace and kernel), analyze crash dumps and disassembled binaries, drive features from design through production, mentor engineers, and collaborate with firmware and product teams to ensure reliable multi‑device, multi‑OS operation.

Design, build, operate, and evolve backend services and runtime infrastructure for cloud orchestration and job execution. Own distributed, asynchronous systems, APIs, workers, persistence, and service-to-service coordination. Improve reliability, observability, testing, and operational tooling; lead cross-team designs and mentor engineers.

This role involves researching and optimizing applications for NVIDIA's computing platform, collaborating with customers and internal teams to enhance performance and design next-generation software and hardware.

Design and build Azure Kubernetes Service features and AI-native infrastructure, improve service reliability and developer velocity, automate incident prevention/remediation, integrate AI tools, and operate distributed, containerized systems at cloud scale.

Develop and execute test plans for SiGe ASICs and high-speed mixed-signal devices. Perform RF/mm-wave probing and characterization, troubleshoot electrical/RF/thermal/software issues, compare measurements with simulations, build bench hardware/software for characterization, qualify test stations (Gage R&R, SPC), document test solutions, and coordinate cross-functional test development schedules.

As a Senior 3D Software Engineer, you will develop advanced 3D algorithms while collaborating with cross-functional teams in an agile environment.

Design, develop, and optimize system software and firmware for SoC-based O-RAN infrastructure. Implement power-management policies (DVFS, clock/power gating, thermal control), analyze RU/DU workloads, build performance and power models, create measurement and test tooling, validate on simulation/emulation and silicon, and influence SoC and platform architectures for 5G/6G deployments.

The engineer will support sales through technical solutions, develop and maintain firmware for mechatronic systems, and collaborate with hardware engineers for integration.

As a Senior Software Engineer - C++ GPU Performance, you will optimize GPU algorithms, monitor performance metrics, and influence design decisions for self-driving technology.