Top C# Jobs in San Diego, CA

Develops and maintains automated manufacturing test systems, software, fixtures, interfaces, and test infrastructure for wireless communications products. Partners with engineering and contract manufacturers on design for testability, NPI launches, production deployment, troubleshooting, data analysis, root cause investigation, and continuous improvement. The role supports RF test equipment integration, test coverage, yield, cycle time, documentation, equipment calibration, training, and ISO 9001 compliance. Travel is approximately 15%.

Build scalable full-stack applications integrating healthcare insights with browser-based and Windows EHR systems. Develop products using FHIR and HL7 interoperability standards, collaborate on technical roadmaps, and implement performant solutions. Mentor junior engineers, conduct code reviews, make technical decisions, and partner with engineering, product, and business stakeholders using Agile processes.

Build and operate reliable backend systems and APIs for high-traffic products. Responsibilities include distributed system design, data modeling, service architecture, performance tuning, automated testing, observability, incident management, and end-to-end feature delivery. The role partners with Product and Design, makes architecture decisions, mentors engineers, and applies AI-assisted development tools responsibly.

Lead and grow an engineering team responsible for scalable cloud platform foundations and developer infrastructure. Set technical direction, make architectural decisions, establish goals, prioritize resources, and guide execution through ambiguity. Partner with Product and Engineering teams to build standardized contact solutions for CRM use cases across business verticals. Drive reliability through infrastructure as code, CI/CD, observability, incident response, and scalable cloud operations while contributing to engineering-wide initiatives.

Lead modernization of complex SQL Server stored procedures and design AI-native data infrastructure. Responsibilities include domain-driven data architecture, event-driven patterns, vector databases, embedding pipelines, semantic models, knowledge graphs, RAG evaluation, multi-platform data solutions, governance, and AI-assisted database tooling. The role partners across engineering and AI/ML teams, establishes reference architectures, mentors engineers, and contributes to enterprise data standards.

Develop and maintain Microsoft Power Platform solutions for CDC mission programs. Responsibilities include designing solution architectures and data models, building Power Apps and Power Automate workflows, configuring Dataverse, modernizing legacy applications, integrating APIs and Azure services, reviewing technical solutions, supporting Agile delivery and testing, troubleshooting defects, documenting deployments, and maintaining production systems. The role also ensures federal security, privacy, governance, and Section 508 accessibility compliance.

Lead design and build of scalable AWS cloud-based backend services and APIs powering web and mobile customer experiences. Own end-to-end feature delivery, improve grading and authentication workflows for scale and reliability, leverage AI tools to accelerate development, and provide technical leadership and mentorship across teams.

Build, deploy, and support secure, scalable full-stack healthcare payment applications. Own front-end, service, backend, analytics, data pipelines, CI/CD, cloud deployment, observability, performance optimization, production incidents, and compliance. Collaborate with product, data, DevOps, QA, business, and client teams to deliver reliable features and platforms across hybrid cloud and on-premise environments.

Develop, test, deploy, and maintain Microsoft Power Platform solutions for federal mission-critical systems. Build Canvas Apps, Model-Driven Apps, Power Pages, Dataverse models, and Power Automate workflows. Migrate legacy .NET, C#, and JavaScript applications, support integrations and testing, troubleshoot defects, document solutions, and assist with production operations. Collaborate within Agile/Scrum teams while meeting federal security, privacy, and Section 508 accessibility requirements.

Provides hands-on technical leadership for complex software architecture, design, development, modernization, and delivery. Partners across engineering, product, and architecture teams; mentors engineers; reviews designs and code; guides distributed, event-driven, cloud-native solutions; and promotes testing, CI/CD, observability, security, and operational excellence. The role remains an individual contributor while influencing technical decisions, managing dependencies, solving ambiguous problems, and evaluating emerging Generative AI and Agentic AI capabilities.

Develop, deploy, test, and support secure enterprise web applications and healthcare reporting solutions. Responsibilities include full-stack design and development, production issue resolution, SQL and report performance tuning, SSRS and SSIS integration, architecture, testing, deployment, data governance, security, and collaboration with business and technical teams. The role also contributes to scalable solution design, project delivery, mentoring, and understanding payer and provider healthcare analytics.

Develop production hardware and software test solutions for RF mobile network products. Build and support test fixtures, test applications, equipment integrations, and design-for-test recommendations. Collaborate with R&D, software, supply chain, manufacturing, services, and external factories from new product introduction through volume production. Analyze tester performance, resolve design issues, and create documentation and test plans.

Designs, builds, operates, and supports backend services powering an enterprise AI platform. Responsibilities include developing APIs, AI gateway and orchestration capabilities, entitlements, tenancy models, data access patterns, integrations, and platform services. The engineer owns services throughout design, implementation, testing, deployment, monitoring, reliability, and support while collaborating with client product, engineering, data, and platform stakeholders.

Design, develop, and maintain automated testing solutions for customer-facing applications and web services. Build test frameworks, integrate tests into CI/CD pipelines, and improve coverage, reliability, security, and release quality. Develop front-end and web-service automation using Groovy/Geb and Java/HttpClient, troubleshoot application issues, participate in code and test reviews, and collaborate with Agile development teams throughout the software lifecycle.

Designs and delivers full-stack software features for electromagnetic warfare test and mission systems. Integrates TCP/IP-connected radios, instruments, servers, and rack components; builds accessible Angular interfaces; supports system evaluation, installation, testing, and sustainment. Develops data pipelines, warehouses, visualizations, threat-signal processing, software distribution tools, and on-premises LLM assistants. Works in Agile and DevSecOps environments while tracking project hours and assisting with effort estimates.

Design, develop, test, deploy, and support enterprise Microsoft Power Platform solutions using Power Apps, Power Automate, Power BI, and Dataverse. Integrate solutions with Microsoft 365, SharePoint, Azure services, Azure SQL, and external data sources. Gather requirements, document solutions, perform testing, troubleshoot issues, and provide technical leadership on governance and the Power Platform Center of Excellence. Mentor developers and support ongoing platform enhancements.

Leads software architecture, full-stack delivery, cross-product integration, and technical quality for ARAT mission systems. Owns classified-enclave deployment, secure GitLab CI/CD pipelines, STIG compliance, RMF and information-assurance coordination, and Windows Army Gold Master compatibility. Establishes shared UI architecture and accessibility standards, designs enterprise test-data platforms and analytics strategies, and governs hybrid cloud, network security, identity, and cross-domain distribution across NIPR, SIPR, and JWICS. Mentors engineers and advises the Government on technical, security, data, and cloud investments.

Develop scalable .NET software components in Azure and Windows environments. Responsibilities include designing core functionality, troubleshooting production issues, conducting code reviews, improving development standards, collaborating on requirements and testing, and coordinating vendor integrations. The role requires C#, .NET, front-end, SQL, ORM, REST API, and SFTP experience. Strong DevOps and Azure skills, distributed energy resource knowledge, and electric energy industry experience are preferred.

Develop and maintain full-stack features for an accounting platform using Angular, C#/.NET, SQL Server, RabbitMQ, and HTTP APIs. Collaborate in Agile ceremonies with product owners, analysts, and engineers; conduct code reviews; troubleshoot distributed-system defects; write unit and integration tests; and contribute to scalable, maintainable software and continuous improvement.

Design, develop, test, and deploy scalable frontend and backend software across distributed cloud architectures. Lead complex feature and service implementation, translate requirements into technical designs, contribute to architecture, and promote quality, security, observability, and maintainability. Collaborate cross-functionally, conduct code reviews, mentor engineers, mitigate technical risks, improve development practices, and evaluate tools that enhance engineering productivity and product quality.

Designs and implements enterprise AWS solutions for contact centers, primarily using Amazon Connect and Salesforce Service Cloud Voice. Responsibilities include developing integrations, configuring cloud services, advising on technical requirements, leading development teams, conducting code reviews, troubleshooting, documenting solutions, and training users. The role requires programming proficiency, AWS architecture knowledge, infrastructure automation, CI/CD experience, and the ability to lead technical delivery with minimal direction.

Manage and grow the Video Enablement engineering team, own core video pipeline (ingest, transcode, storage, playback), enable third-party device integrations, collaborate on video roadmap, ensure scalable resilient AWS infrastructure, mentor engineers, contribute technically when needed, and support production incidents and cross-team enablement.

Designs, builds, deploys, supports, and optimizes scalable full-stack web applications and APIs. Responsibilities include system architecture, frontend and backend development, SQL and PL/SQL programming, requirements analysis, software triage, technical documentation, stakeholder validation, and cross-functional collaboration. The role supports a U.S. Navy client and requires obtaining and maintaining Security+ certification and Secret clearance.

Designs, develops, deploys, supports, and optimizes scalable full-stack web applications and APIs for a U.S. Navy client. Responsibilities include front-end and back-end development, system architecture, requirements analysis, SQL and PL/SQL development, documentation, software triage, stakeholder validation, and cross-functional collaboration. The role uses JavaScript frameworks, Java or .NET technologies, relational databases, cloud platforms, Agile practices, and standard SDLC methodologies.

Seeking a .NET Developer with over 5 years of web development experience. Responsibilities include analyzing system requirements, assisting with UAT, and participating in meetings. Must be familiar with various technologies and work collaboratively with teams.