Top Senior C# Jobs in San Diego, CA

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.

Maintain and enhance the ChangePoint system, implement end-to-end solutions, and resolve system defects. Produce technical design and testing deliverables, support data changes in the backend, and provide off-hours support as needed. Ensure architecture and development follow best practices and collaborate with team members and end users.

As a Software Development Manager, you will lead a team focused on enhancing our SaaS platform, managing development of secure access services, fostering an agile culture, and mentoring engineers.

Lead the development of user-facing features, collaborate with team members, and mentor others while ensuring a high quality of software design and implementation.

Design, develop, test, and deploy C#/.NET software; document APIs; ensure quality via CI/CD and verification plans; collaborate with teams and provide technical guidance.

Design, build, and scale features and services for global ticketing platforms. Implement APIs, optimize performance for high traffic, lead architecture, mentor teams, and ensure high-quality, well-tested code.

Serve as the primary technical leader for new logo prospects in the Eastern region. Assess fit for Temporal, demo technical benefits, prototype solutions, advise on architecture and production operations, partner with Sales to scope opportunities, and drive adoption and expansion with customer engineering teams.

Lead end-to-end delivery, stability, and production support for customer-facing enterprise applications. Provide hands-on architecture, coding, code reviews, incident management, and CI/CD/monitoring improvements. Drive sprint planning, prioritize features and tech debt, and collaborate with product, QA, and stakeholders to meet business goals while enforcing secure, reliable engineering practices.

Lead and grow a high-performing full‑stack engineering team, drive technical strategy and roadmaps, remove blockers, collaborate cross-functionally, and deliver scalable, secure healthcare software.

Senior Full Stack Engineer responsible for designing, building, testing, and maintaining cloud-based web applications and APIs. Collaborate with product, design, and engineering teams to deliver scalable, secure microservices and improve internal tooling and platform reliability.

The Senior Back-End Software Engineer will design and write back-end code, mentor developers, and innovate the re-architecture of Tenna's product line, focusing on IoT solutions and microservices.

The role involves designing and developing features for an IoT platform, writing scalable code, mentoring developers, and contributing to architectural decisions. It requires collaboration with cross-functional teams and participation in agile processes.

Design, build, and optimize scalable, high-performance backend services and public APIs for global ticketing platforms; participate in design/code reviews, improve security against fraud/bots, and mentor junior engineers.

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

The Lead Back-End Engineer will design, write, and review production code, establish engineering standards, and collaborate with cross-functional teams to enhance backend practices and code quality.

The Senior Backend Engineer will design and maintain Azure SQL databases, optimize performance, automate deployments, and collaborate with teams on best practices and development.

The Senior Backend Engineer will develop backend solutions using .NET/C# and modern architecture, focusing on cloud services and databases, while managing client projects.

Lead automation and optimization of Filevine's data platform: performance tune MSSQL/Postgres, optimize Snowflake, provision infrastructure with Terraform/AWS, run stateful containers on Kubernetes, integrate AI/LLM and MCP for operational automation, manage CI/CD, capacity planning, documentation, and serve in 24/7 on-call rotation.

Design and develop scalable software solutions, lead engineering workstreams, ensure code quality, mentor junior developers, and collaborate on technical strategies to enhance digital experiences for BECU members.

The Senior QA Analyst oversees testing projects, develops manual and automated tests, and collaborates cross-functionally to ensure quality in software development.

The Senior Software Engineer will focus on integrating Sage Intacct with core business processes, developing backend services, and maintaining integration systems. Responsibilities include designing, building, and supporting secure integration solutions, as well as collaborating with stakeholders on technical requirements.

Architect and implement scalable React/TypeScript user interfaces for web and Electron desktop apps. Integrate native modules (C++/Objective-C), work with REST APIs under zero-knowledge principles, optimize performance and accessibility, lead code reviews, mentor engineers, and participate in CI/CD and automated testing to deliver secure, high-quality features.

The Senior Software Engineer will design and develop scalable, high-performance systems, focusing on database optimization and system enhancements. Collaboration with teams and solving complex problems is essential.

As a Senior Site Reliability Engineer, you'll analyze and improve software on production networks, automate debugging, and validate cost reductions while collaborating with development and QA teams.

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.