Top C# Jobs in San Diego, CA

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.

Join the Consumer Technology team to develop, maintain, and troubleshoot applications and test tools. Perform routine automation, white-box testing, code reviews, monitor automated processes, estimate tasks, communicate with product owners and users, and recommend improvements. Assist in training others and follow departmental methodologies.

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.

Lead development and maintenance of large-scale distributed systems and software platforms; design, test, deploy, and optimize applications used by physicians and patients; manage EDI analysts; collaborate with cross-functional teams to deliver technical solutions, monitor reliability, and drive system scalability and performance.

Develop and customize Teamcenter-NX integration, create NXOpen tools, implement customizations, and conduct testing while providing user training materials.

Provide technical and architectural leadership to the software development team, design software solutions, mentor team members, and drive projects to completion.

As a Deployed Customer Engineer, you serve as a technical partner, implementing Couchbase solutions and collaborating with customers to achieve technical milestones and business outcomes. Responsibilities include coding, database architecture design, and troubleshooting deployment challenges.

Lead the design, development, and deployment of digital identity solutions for state governments, ensuring effective technology implementation and customer success.

Lead technical strategy and architecture for public sector digital identity solutions, ensuring technical excellence and customer success with hands-on involvement and high-level interactions.

Lead full-stack developer responsible for designing, building, and maintaining Salesforce Commerce Cloud e-commerce solutions and integrations (ERP/CRM). Mentor junior developers, provide technical leadership, troubleshoot issues, and deliver scalable, secure code while collaborating with cross-functional teams.

The Lead Technology Engineer will lead IT systems implementation, ensure network security, manage integrations, and enhance operational efficiency through automation.

PrivateID seeks a Principal C++ Engineer with at least 10 years of experience to lead complex systems and scale their platform in a remote-first environment.

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

Designs scalable, secure technology solutions connecting business objectives with application, integration, data, cloud, and enterprise systems. Responsibilities include developing architectures and roadmaps, modernizing processes through automation, governing APIs and data flows, incorporating security and compliance, guiding engineering teams, evaluating vendors, and facilitating stakeholder discovery workshops.

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.

Design and optimize high-performance C++/CUDA libraries for GPU-based data processing. Improve multi-node GPU communication (UcxExchange), optimize Presto GPU query performance, and lead enhancements across Presto, Velox, and cuDF projects for efficient DataFrame and database acceleration.

The Lead Data Engineer will architect and develop a healthcare data platform on GCP, guiding teams in pipeline development, data modeling, and ensuring compliance with HIPAA. They will collaborate across functions, set technical directions, and mentor junior engineers.

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.

Contribute to and optimize the performance of ClickHouse, assist with debugging, collaborate with teams, and engage with the open-source community.

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.

Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.

Design, build, and maintain scalable full-stack web applications. Implement backend APIs and responsive frontends, deploy to cloud, ensure security/performance, write tests, debug issues, participate in reviews, and mentor junior developers.

Lead development and management of production test systems for satellite payloads and ground terminals, ensuring quality and reliability across hardware systems.

The RF Test Engineer designs and manages testing systems for satellite RF payloads, collaborates with design teams, and automates testing processes.

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