Top C# Jobs in San Diego, CA

Build and operate production-grade software, APIs, workflows, and user experiences for Microsoft’s cloud datacenter inventory and asset management platforms. Responsibilities include translating ambiguous operational needs into technical solutions, applying AI-native engineering practices, improving automation, ensuring reliability and security, and owning features through design, implementation, deployment, monitoring, and continuous improvement. The role collaborates with product, program, datacenter operations, supply-chain, and engineering teams.

Develop and evolve Azure capacity infrastructure, platform capabilities, and service stacks at scale. Provide technical leadership in requirements, architecture, design, coding, release planning, and operational reliability. Mentor engineers, manage cross-product dependencies, serve as a designated responsible individual, participate in on-call support, and improve system availability, observability, performance, and efficiency.

Own end-to-end delivery of complex software features for a virtual care platform. Design scalable systems, build AI-powered agents and workflows, enhance reliable mobile and web experiences, and translate clinical and user needs into technical solutions. Collaborate with product managers, designers, and clinical staff while focusing on patient impact, product quality, and engineering efficiency.

Own the networking architecture and roadmap for AKS Flex and Unbounded, enabling secure, reliable, high-performance Kubernetes connectivity across sites, clouds, edge environments, and on-premises infrastructure. Design overlay and underlay networks, routing, encrypted tunnels, eBPF dataplanes, and distributed systems for high-latency and partitioned environments. Integrate InfiniBand and RDMA for AI workloads, lead cross-team architecture efforts, improve global fleet performance and reliability, and participate in production operations and on-call rotations.

Lead architecture and hands-on development of Azure Kubernetes Service capabilities for AI workloads. Design secure, reliable, scalable distributed systems; coordinate engineering teams; define testing and deployment strategies; improve observability and operational readiness; investigate production issues; and mentor engineers while advancing engineering practices.

Lead architecture and development for AKS Flex, scaling etcd and Kubernetes control planes for distributed node fleets. Design remote-node provisioning, lifecycle automation, Kubernetes-native APIs, secure bootstrap, upgrades, and reliability systems across Azure, on-premises, edge, and other clouds. Drive performance testing, production operations, open-source collaboration, technical strategy, cross-team alignment, and mentorship while solving distributed-systems, storage, security, and scalability challenges.

Develop and maintain full-stack features for a healthcare analytics platform using Angular, C#, REST APIs, SQL, Snowflake, AWS, and Power BI. Build reports, dashboards, and data pipelines handling claims and other sensitive healthcare data. Participate in testing, code reviews, product planning, on-call support, and compliance with HIPAA and privacy requirements.

Designs and develops scalable, resilient distributed systems and microservices for a cloud-based healthcare platform. The role spans .NET, SQL, Angular, cloud infrastructure, Kubernetes, observability, security, performance optimization, and full-stack development. It provides hands-on technical leadership, architectural guidance, mentoring, incident support, and automation while ensuring compliant handling of PHI and PII data.

Develop and maintain backend software using C# and T-SQL, focusing on import functionality, performance optimization, utility and migration tooling. Responsibilities include test-first development, design and code reviews, debugging, integration and deployment, documentation, collaboration with product management, and on-call support. The role requires strong software engineering practices, scalability and security awareness, regulatory compliance, and independent execution of complex tasks.

Designs, develops, and leads scalable distributed microservices for a cloud-based healthcare platform. Works across .NET, SQL, Angular, Google Cloud, Azure, and Kubernetes while improving reliability, observability, security, performance, and automation. Provides architectural leadership, mentors engineers, handles sensitive PHI and PII, collaborates with stakeholders, and participates in on-call support. The role requires strong system design, troubleshooting, communication, and technical judgment.

Staff Software Engineer responsible for setting technical direction, architecting scalable distributed systems, shipping high-impact features, and building AI-powered tools for a virtual healthcare platform. The role includes mentoring engineers, partnering with product and clinical leadership, translating user needs into technical solutions, and guiding frontend and backend application development in a fast-paced startup environment.

Develop, test, deploy, and support solutions for the ScriptMed Cloud Platform using C#, SQL, and scripting. Configure systems for customer onboarding and tenant creation, automate manual workflows, translate business requirements for distributed engineering teams, and collaborate on designs and troubleshooting. The role requires responsible handling of sensitive data, adherence to HIPAA and security policies, project ownership, documentation, and participation in an after-hours on-call rotation.

Leads full-stack software engineering and technical delivery for enterprise applications across the Microsoft .NET and Azure ecosystem. Designs scalable architectures, APIs, integrations, distributed and event-driven systems, and cloud-native solutions. Provides hands-on development, code reviews, troubleshooting, DevOps collaboration, CI/CD, production support, and operational improvement. Mentors engineers, coordinates technical delivery, manages risks and dependencies, and partners with Product, Architecture, Security, QA, and infrastructure teams.

Leads IT systems analysis, application development, testing, implementation, troubleshooting, documentation, and user training. Translates business requirements into software solutions, supports healthcare platforms and interfaces, facilitates JAD sessions, and coordinates with stakeholders, project managers, and development teams. Manages small to medium IT projects, ensures SOX, HIPAA, quality, and regulatory compliance, mentors analysts, and drives application improvements across multiple platforms.

Build and improve Azure Kubernetes Service capabilities for Linux and Windows containers. Develop distributed cloud infrastructure, automation, observability tooling, and reliability improvements at global scale. Support AI-native infrastructure, including GPU orchestration, model deployment, inference, and platform operations. Accelerate engineering workflows, prevent production incidents, integrate AI tools, and contribute to Kubernetes and cloud-native platform innovation.

Plan and execute system-level manual and automated testing for software releases involving electro-mechanical equipment. Develop and debug C# test scripts, perform functional and regression testing, document defects in Jira, analyze release quality metrics using SQL or scripting, and collaborate with engineers to troubleshoot and verify fixes. Estimate testing efforts, improve QA practices, and provide daily direction to SQA Technicians.

Integrates biological protocols with prototype instrumentation, troubleshooting hardware, software, consumables, workflows, and assays. Designs hardware experiments, transfers molecular and cell biology protocols, gathers engineering requirements, and develops automation, data-analysis, instrument-control, and AI-assisted tooling. Collaborates with engineering and scientific teams to detect drift, classify failures, and optimize workflows. Requires hands-on instrumentation development, wet-lab familiarity, Python scripting, data analysis, and AI tool experience. Travel up to 20%.

Leads architecture, development, governance, and delivery of enterprise OutSystems applications across O11 and ODC. Builds full-stack web and mobile solutions, integrations, and custom C#/.NET extensions; establishes coding and security standards; mentors developers; manages deployments and performance; and collaborates on CI/CD, DevOps, Agile delivery, and compliance in a regulated banking environment.

Lead and mentor the software engineering team responsible for PSA Set Registry, a large-scale consumer web and mobile product. Drive architecture, development, delivery, code quality, release management, production troubleshooting, and technical strategy. Partner with product, design, and business teams to translate requirements into scalable solutions while promoting agile practices, collaboration, continuous learning, and an inclusive engineering culture.

Designs, develops, tests, troubleshoots, documents, and maintains software applications throughout the project lifecycle. Responsibilities include coding, database and system administration, performance testing, debugging, software upgrades, requirements documentation, user support, vendor coordination, and collaboration with analysts, administrators, and engineers. The role also provides guidance to junior development staff and supports cross-departmental projects.

Leads software development, QA, and DevOps for a digital insurance platform. Owns engineering roadmaps, delivery governance, architecture, code quality, security, testing, release reliability, and operational improvement. Manages and develops a small engineering team, partners with product and business stakeholders, evaluates technical risks, and guides responsible AI-assisted development. The role requires hands-on technical judgment across modern application architecture, Azure cloud services, CI/CD, automated testing, monitoring, and secure software delivery.

Own web compatibility triage and incident response across DuckDuckGo browsers on Mac, Windows, iOS, and Android. Debug complex web applications and third-party code, distinguish site, browser, and privacy-related issues, reverse-engineer obfuscated code, build durable cross-platform fixes, and develop automation and LLM agent tooling to reproduce and triage breakage. Lead ambiguous projects independently and communicate with technical and non-technical stakeholders.

Staff Software Engineer leading hands-on full-stack development across C#/.NET services, Angular interfaces, databases, and AWS-hosted applications. Builds healthcare data integrations using HL7, FHIR, and X12 EDI; modernizes legacy systems; improves performance; applies secure coding and HIPAA practices; supports production incidents; reviews code; mentors engineers; and collaborates with product and QA teams.

The Principal QA Architect owns the strategy, architecture, delivery, and adoption of enterprise QA technology solutions. Responsibilities include designing automation frameworks, AI-enabled testing capabilities, reporting, observability, test data solutions, CI/CD quality gates, and integrated platforms. The role remains hands-on with software development, prototyping, integrations, and troubleshooting while providing technical leadership, mentoring, roadmap ownership, stakeholder influence, and outcome measurement across QA and software delivery teams.

Configure and support the FASTDS-VS COTS application, including requirements analysis, user permissions, reference tables, change-request development, scripting, debugging, source control, testing, implementation specifications, and production support. The role requires SQL and object-oriented development experience, familiarity with software development methodologies, and strong analytical and communication skills.