Top Remote C# Jobs in San Diego, CA

Evaluate AI coding-agent interactions for usefulness, correctness, engineering judgment, reasoning quality, and developer trust. Provide clear, opinionated feedback, distinguish response-quality levels, and help define standards for excellent interactions with tools such as OpenAI Codex, Claude Code, and Cursor. This contract role requires staff- or principal-level software engineering experience and familiarity with modern AI-assisted development workflows.

Lead architecture and roadmap for Azure PostgreSQL systems; design and review scalable, maintainable database engine features (query processing, storage, transaction logging, recovery, versioning, IO, scale-out). Influence coding standards and run code reviews, write proof-of-concept or production code, contribute to open-source PostgreSQL/Linux, and participate in rotational on-call operations.

Develop scalable test automation frameworks, QA tools, and intelligent testing systems using Playwright, C#, and JavaScript/TypeScript. Integrate automated testing into CI/CD pipelines, build end-to-end, integration, and performance solutions, and apply AI techniques to improve test generation and defect detection. Partner with engineering and QA teams, troubleshoot reliability issues, contribute to test strategy, and mentor colleagues on automation and modern testing practices.

Lead architecture and hands-on development for AccessOne’s financing platform across frontend, backend, data systems, integrations, and cloud infrastructure. Modernize production systems, build accurate and auditable financial workflows, lead complex initiatives through deployment, and establish engineering practices. Use AI coding tools responsibly while ensuring software quality, security, testing, reliability, and maintainability.

Administer and improve CDC directory services, including Active Directory, FIM integrations, Exchange, DNS, DHCP, DFS, and related Windows services. Develop C# FIM extensions and PowerShell automation, synchronize SQL, LDAP, and directory data, troubleshoot escalated messaging and identity issues, monitor recovery processes, maintain documentation, and support deployments through approved remote-access and change-control procedures.

Develops, tests, deploys, and maintains data-driven applications, databases, automated workflows, AI-enabled capabilities, and decision-support tools. Builds data pipelines, integrates enterprise systems and APIs, performs data validation, troubleshoots defects, supports prototyping and user acceptance testing, and contributes to code reviews, Agile ceremonies, documentation, deployments, and customer support. Collaborates with technical teams, project managers, customers, and stakeholders to deliver software solutions.

Leads architecture and development of complex backend services for a commercial health plan platform. Designs .NET Core and Azure systems, develops claims, eligibility, and benefits functionality, manages healthcare data integrations, and owns cloud infrastructure and CI/CD architecture. Provides technical leadership through code reviews, testing standards, mentoring, and architecture decisions while ensuring performance, reliability, security, and regulatory compliance.

Design and build reusable backend platform services, libraries, frameworks, integrations, and AWS infrastructure abstractions. Establish reliability, security, observability, testing, compatibility, and deployment standards for consuming teams. Direct AI-agent implementation through specifications and contracts, review generated and human code, manage incidents, and drive production adoption of shared platform capabilities.

Lead the evolution of the Password Safe platform and infrastructure across cloud and on-premises environments. Design highly available systems, optimize platform services, standardize CI/CD and infrastructure-as-code practices, and establish GitOps workflows. Build observability, SLOs, chaos engineering, and disaster recovery capabilities. Serve as a technical leader by defining SRE strategy, mentoring engineers, conducting design and incident reviews, and influencing the engineering roadmap.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

Develop and deliver production-grade full-stack software across .NET/C# backend services and React front-end applications. Build reliable, scalable AWS cloud solutions, optimize relational and document databases, implement CQRS, and integrate AI-assisted coding workflows. Validate AI-generated code for security, quality, and maintainability while establishing guardrails and review processes. Collaborate with Product and QA, participate in code reviews, uphold engineering standards, and mentor other engineers.

Develop chromatography data-processing algorithms for cloud-based Empower data systems and collaboration software. Responsibilities include implementing peak integration, calibration, and quantitation algorithms; migrating legacy C++ to .NET Core/C#; applying numerical methods and AI/ML; optimizing performance through parallelism; writing unit tests; refining requirements with stakeholders; and preparing technical reports, patents, and project updates.

Leads software engineering strategy, architecture, technical project delivery, and development team management. Designs scalable cloud-native solutions, contributes hands-on to software development and code reviews, and promotes generative AI, DevOps, CI/CD, automated testing, and agile practices. Oversees .NET, C#, SQL Server, API, microservices, and AWS or Azure technologies while aligning technical initiatives with corporate growth objectives and communicating with executives and business stakeholders.

Leads architecture, hands-on software development, deployment, and production issue resolution for strategic customer projects. Drives AI innovation, platform resiliency, security, observability, performance, and operational improvements. Partners with executives, engineering, product, and customer success teams to prioritize strategic programs, improve customer value, share technical best practices, and remove production blockers.

Provides technical leadership for Azure cloud-scale distributed data platforms processing network telemetry and operational data. Defines architecture and long-term technical strategy, leads streaming and batch system design, resolves complex scalability and reliability challenges, oversees production readiness and continuous improvement, and influences cross-team technical investments. Partners across Azure Networking, conducts design reviews, establishes reusable engineering patterns, improves observability and quality, and mentors engineers and technical leaders.

Design, develop, and architect enterprise applications using Microsoft Power Platform, including Power Apps, Power Automate, Power Pages, and Dataverse. Integrate enterprise data sources, build custom plugins and APIs, implement secure architectures, and establish ALM and deployment practices. Lead and mentor a team of developers, collaborate with stakeholders and technical teams, participate in Agile ceremonies, and present technical solutions.

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.

Develops and supports Enterprise Content Management platforms, workflow automation, integrations, and content-enabled applications. Builds .NET services, APIs, automated tests, CI/CD pipelines, and infrastructure-as-code solutions. Troubleshoots application, database, and infrastructure issues; configures monitoring, alerts, and operational runbooks. Collaborates in Agile/Scrum teams with product owners, architects, and stakeholders while applying security, retention, privacy, audit, and reliability requirements.

Leads the design, implementation, and support of complex, scalable software components and distributed systems. Provides technical leadership through architecture decisions, mentoring, code and design reviews, troubleshooting, and engineering standards. Partners with product, quality, architecture, and DevOps teams on secure cloud-native solutions, CI/CD, observability, performance, releases, and platform modernization. Participates in hiring and communicates technical risks and tradeoffs to stakeholders.

Lead architecture, development, and technical strategy for scalable cloud-native applications, distributed services, APIs, data platforms, workflows, and AI-powered capabilities. Drive modernization, reliability, security, observability, CI/CD, and operational excellence across teams. Translate complex requirements into scalable technical solutions, mentor engineers, influence architecture, and develop intelligent experiences using generative AI, RAG, agents, and automation.

Designs and builds cloud-native maintenance planning software for U.S. Navy and defense customers. Responsibilities include modernizing legacy systems, developing data transformations and APIs, designing microservices, implementing identity and access controls, ensuring data quality and compliance, and leading architecture and technical delivery. The role collaborates with government, vendor, platform, and engineering stakeholders, mentors engineers, documents systems, and supports development through production sustainment in a remote environment.

Lead the automation strategy for a live AAA mobile game, building the team, frameworks, tooling, standards, and quality gates needed for frequent releases. Responsibilities include hiring and mentoring, designing automated UI/API/mobile tests, integrating testing into CI/CD, establishing metrics and observability, providing hands-on technical leadership, and partnering across Engineering, QA, Product, Live Operations, and external teams to improve release quality.

Lead two or more software engineering teams building and operating TopstepX, a real-time trading platform. Responsibilities include coaching and developing engineers, hiring and capacity planning, prioritizing delivery amid changing needs, and ensuring system availability, performance, quality, and resilience. The role requires leadership of production systems, incident response, observability, reliability investments, and collaboration with Product and business stakeholders.

Leads the design, development, deployment, and support of scalable, fault-tolerant software applications. Responsibilities include architecture, coding, debugging, performance optimization, cloud-native and microservices development, Kubernetes operations, production monitoring, incident response, code reviews, technical planning, mentoring, and cross-functional collaboration. The role also contributes to product roadmaps, engineering standards, automation, and on-call support.

Leads and develops backend software engineering managers and technical teams, establishes development metrics and delivery processes, and drives high-quality product releases. Partners with design and business teams on customer-centered experiences, facilitates cross-functional planning, mentors employees, improves engineering practices, and supports long-term organizational and product goals.