Top C++ Jobs in San Diego, CA

Remote backend C# developer to build and optimize a high-load spot-exchange matching engine. Improve performance and API throughput, implement business features, write unit and integration tests, work with .NET Core and PostgreSQL on AWS, and apply multithreading, async, and distributed systems concepts.

The Principal Software Engineer will design and oversee architecture for software systems, collaborate with teams, and ensure robust, secure solutions for debt solutions products.

Perform civil/structural engineering and design tasks for power plant upgrades and new projects under senior supervision. Assist with calculations, modifications, equipment walkdowns, and design changes to improve plant performance, safety, and reliability. Work involves field and office duties, travel to client sites, and maintaining unescorted nuclear plant access.

Lead technical direction for a major product domain, reduce architectural debt, mentor engineers, standardize AI-agent workflows, and design scalable backend solutions integrating LLMs and cloud services. Drive cross-team RFCs, cookbook standards, and adopt agentic AI tooling while balancing security, quality, and delivery.

As a Sr. Software Engineer at Bloomerang, you will lead technical direction, mentor engineers, and enhance SaaS solutions while utilizing .NET and AI tools. You will ensure scalable, maintainable applications, advocate for Agile workflows, and focus on quality outcomes in software development.

Develop and maintain .NET Core trading systems for Linux with service-oriented architecture and multi-threaded processing. Implement async, lock-free structures and distributed systems, write unit and integration tests, optimize SQL queries, design data structures and algorithms, and work with communication protocols (SignalR, gRPC, HTTP). Use PostgreSQL, Docker, and AWS in the deployment stack.

Improve, modernize, and sustain complex, distributed defense software by debugging production issues, performing root-cause analysis, refactoring legacy code, reducing technical debt, enhancing CI/CD and automated testing, and collaborating with engineers, architects, and government stakeholders to maintain performance, interoperability, and delivery schedules.

Develop, test, and maintain production-quality C++ software implementing Government Reference Architectures for mission-critical defense systems. Translate MBSE (SysML/Cameo) artifacts into interoperable components, implement APIs/ICDs, integrate distributed messaging frameworks (ActiveMQ/DDS/ZeroMQ), and maintain CI/CD, automated testing, containerized builds, and static analysis. Collaborate with systems engineers, architects, autonomy engineers, and government stakeholders to validate interoperability and performance.

Develop systems software to parse, reverse-engineer, and deterministically generate complex engineering data. Build tooling for schema translation, compiler/transpiler solutions, reproducible CI/CD pipelines, and automated document generation. Collaborate with multidisciplinary teams, support verification/validation, and apply MBSE concepts for engineering integration.

Lead design and delivery of complex backend features for a high-scale online banking platform. Own code from design to production, modernize legacy systems, develop microservices, design APIs, implement tests, ensure secure coding, use AI-assisted tools, troubleshoot issues, and document APIs while collaborating with product, QA, and front-end teams.

Build and maintain backend and infrastructure software for ground navigation: control plane, workflow orchestration, databases, product repositories, ingestion pipelines, observability, CI/CD, and operator tools. Integrate orbit determination, telemetry, reference data, and validation into repeatable per-spacecraft workflows and collaborate with astrodynamics, flight software, mission operations, and systems teams to operationalize navigation products.

Implement and maintain technical frameworks and workflows for gameplay systems. Collaborate across disciplines to create reusable tools, ensure system architecture, optimize performance, and document best practices. Serve as a technical expert and advocate for the technical design team to support high-quality game content production.

Lead technical direction for the Growth team at Sanity.io, focusing on scalable solutions, mentoring engineers, and making data-informed architectural decisions.

Lead design and development of directional communications and data-link systems for Coherent Distributed Networks. Develop RF/DSP algorithms (beamforming, time-transfer), optimize real-time implementations on software and hardware (C++, Python, MATLAB, FPGAs, DSPs), model and simulate radar systems, plan field tests, mentor engineers, and deliver system requirements and technical reports. Onsite in El Segundo or San Diego, CA.

Develop and maintain mobile app and no-code quest editor, implement gameplay engine and server, design software architecture, and collaborate in one-week Scrum sprints using C++, Qt, QML, MySQL, and AI-assisted tools.

Part-time full‑stack developer to maintain and extend a global Laravel backend and modern frontend (Angular/React/Vue). Responsibilities include architecture, DevOps tasks, code reviews, using MySQL, PHP/JavaScript/TypeScript, GitLab workflows, and AI-assisted coding tools. Work in one-week Scrum sprints, ~10+ hours/week, equity-based compensation; applicant must hold a full‑time job.

Design and implement gameplay systems; develop, modify, and debug gameplay code (C/C++); deploy, optimize, and test on PC; collaborate with art, design, audio, and QA; document features and participate in code reviews.

The Senior Flight Software Engineer will develop and integrate embedded software for satellite systems, ensuring successful hardware validation, product delivery, and support throughout the entire lifecycle.

Lead the development of onboard real-time beam control systems, integrating control software with mission requirements, while managing interfaces and conducting performance analyses.

Lead the architecture and development of data plane software for a satellite network, ensuring performance and integration with control systems.

Lead the architecture, design, and development of Control Plane software for Logos' network, ensuring scalability and integration with cloud platforms and embedded systems.

The Antenna Engineer will design, develop, and integrate advanced antenna systems for LEO satellite communication, focusing on phased array technology and RF components.

Lead engine and systems development: design and implement core systems, research improvements, collaborate cross-functionally, optimize memory and performance, mentor engineers, and support debugging and threaded architecture.

Develop a quest gameplay engine for game server and mobile apps and build a visual no-code quest editor. Collaborate in one-week Scrum sprints, design software architecture, and use C++/Qt, JavaScript/TypeScript, git, and Linux.

Design and optimize backend systems for MEV infrastructure, focusing on transaction lifecycle, network conditions, and technical leadership.