Top Remote C# Jobs in San Diego, CA

Provides hands-on technical leadership across product areas by defining architecture, engineering standards, and scalable system designs. Leads modernization, cloud transformation, platform scalability, developer productivity, and cross-team technical initiatives. Partners with product and engineering stakeholders, conducts design reviews, manages technical risks, and mentors engineers. Requires extensive experience with TypeScript, Node.js, C#, distributed systems, cloud platforms, DevOps, Terraform, and reliable enterprise software.

Support technical integrations between Sentrycs C-UAS technology and partner C2 or system-of-systems platforms. Configure, test, validate, and troubleshoot REST APIs and software interfaces; collaborate with Product, Engineering, and Customer Success teams; document requirements, configurations, issues, and resolutions; support technology partners; and drive integration problems through resolution. The role requires developing deep API and integration expertise while working with globally distributed teams.

Build and maintain 3D pipeline integrations, plugins, exporters, and platform connections across DCC tools and SaaS destinations. Own integrations from scoping through deployment, documentation, release, and support. Ensure asset fidelity across formats, materials, textures, scene scaling, and color spaces while troubleshooting complex multi-system pipelines. Collaborate with internal engineering teams, external platform vendors, and customers to resolve integration constraints and extend the shared integration framework.

Leads development of scalable backend systems and applications for the Mindbody ecosystem. Responsibilities include designing APIs and microservices, owning complex technical projects, collaborating with Product, Design, and QA, promoting engineering best practices, mentoring engineers, conducting code reviews and interviews, and leading incident postmortems. The role requires strong software architecture experience, large-scale SaaS development, cloud and database expertise, and effective cross-functional leadership.

Build realistic simulation environments, tools, and infrastructure for autonomous boats, drones, ground vehicles, and multi-agent systems. Develop configurable scenarios, sensor models, agent behaviors, closed-loop SIL and HIL workflows, replay and regression testing, and automated scenario evaluation. Integrate simulations with autonomy stacks, mission software, command-and-control systems, and data pipelines. Improve simulation scalability, fidelity, debugging, and developer workflows while helping engineering teams reproduce field failures and validate systems before deployment.

Designs and maintains automated UI, API, end-to-end, and integration tests across React, Angular, and .NET applications. Validates data flows with SQL Server or Azure SQL, integrates test suites into Azure DevOps quality gates, and manages test data for parallel execution. Uses AI tools to accelerate test generation while critically reviewing coverage and assertion quality. Documents defects in Jira, contributes to test planning and acceptance criteria, and collaborates with engineers and offshore QE teams.

Owns the design, development, testing, deployment, and maintenance of production software. Builds C#/.NET backend services, Angular web applications, and .NET MAUI mobile apps; optimizes SQL Server databases; resolves production issues; improves reliability, security, performance, and observability; writes tests and documentation; participates in code reviews; and translates ambiguous business needs into maintainable technical solutions.

Lead enterprise architecture for client reporting programs: set strategy for cloud data platforms, end-to-end pipelines, integrations, governance, and delivery. Guide program planning, chair governance, mentor teams, drive best practices, and commercialize client reporting offerings. Act as senior advisor to clients and accountable owner for architecture and delivery excellence.

Build and own scalable payments infrastructure for card issuing, transaction processing, and settlement. Design reliable integrations with Stripe, banking partners, and internal platforms using .NET, C#, Azure, DDD, CQRS, and event-driven architectures. Improve system reliability, observability, performance, security, and compliance while mentoring engineers and contributing to technical direction. Apply AI-assisted development across coding, testing, debugging, and engineering workflows.

Lead a multi-team engineering organization responsible for delivery, technical quality, production reliability, security, privacy, and AI-native development practices. Build scalable teams and managers, establish cross-team delivery systems, partner with Product and Design, oversee observability and incident response, use engineering metrics to guide improvements, and shape hiring, leveling, and talent development.

As a Senior Software Engineer, you'll develop and build tools for creative projects while leading feature development and collaborating with teammates.

Build scalable backend-heavy services and applications using C# and .NET, while contributing to Angular and TypeScript UI development. Design and develop REST APIs and microservices, work with relational databases, implement automated testing and CI/CD, and ensure system security, scalability, and performance. Preferred work includes event-driven architectures, messaging systems, NoSQL databases, caching, search technologies, and mentoring engineers or leading technical initiatives.

Own end-to-end deployments of Prividium for institutional financial customers, including integration code, permissioning, node topology, upgrades, and operational runbooks. Build reference applications for collateral, tokenized deposits, and settlement. Operate production infrastructure through an on-call rotation, troubleshoot incidents, and convert deployment learnings into platform improvements. Collaborate with product, sales, core engineering, and customer teams while working across regulated banking systems or crypto infrastructure.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

Designs and commissions automated robotic, CNC, and tooling cells from concept through production handoff. Responsibilities include PLC, robot, HMI, motion-control, electrical-panel, industrial-network, machine-vision, sensor, and safety-device integration. The engineer performs floor commissioning, risk assessments, root-cause analysis, and customer run-offs while collaborating with manufacturing, tooling, software, and program-management teams. The role also mentors engineers and technicians and develops reusable controls libraries and standards.

Leads end-to-end modernization from a monolith to microservices, including legacy analysis, architecture, estimation, data migration, deployment, and production support. Guides .NET services, databases, messaging, containerization, and frontend integrations. Acts as the technical escalation point for complex issues while improving Jira tracking, estimation accuracy, QA collaboration, release predictability, and engineering processes. Manages and develops the team through one-on-ones, performance reviews, feedback, and career-focused objectives.

Develops, tests, documents, maintains, and enhances software solutions using established design principles and development practices. The role addresses defects, security vulnerabilities, and performance improvements; participates in requirements analysis, planning, and user story development; documents standards and changes; and collaborates with and mentors software engineers. Work involves .NET technologies, source control, software development lifecycle practices, and potentially Azure or AWS cloud development.

Develop and maintain software solutions across the full development lifecycle, including design, coding, testing, documentation, system enhancements, security remediation, performance improvements, and user story analysis. Collaborate with development teams to solve business problems using .NET technologies and software engineering best practices. Participate in Agile or Lean processes, document changes, and maintain current knowledge of tools, technologies, and industry standards.

Develop and lead implementation of mathematical optimization models for supply chain applications. Investigate heuristics and optimization techniques, translate real-world problems into software, and design comprehensive testing strategies. Build robust C++ software, automated functional, regression, and performance tests, and collaborate with agile teams. Apply AI and other tools to accelerate development while maintaining architectural consistency, security, and code quality. Review AI-generated code for correctness, integration risks, and edge cases.

Develop and maintain automated testing tools and frameworks for complex healthcare software. Create test plans, execute white-box, black-box, UI, API, and performance testing, identify defects and testing gaps, improve CI/CD processes, and collaborate with product managers and developers to support high-quality releases. The role also involves debugging code, participating in demos, and working with distributed teams in a remote environment.

Own full-stack features end to end, including system design, implementation direction, testing, deployment, production operations, and incident response. Use agentic AI to generate code, tests, and reviews while validating quality and security. Build production APIs, data models, authentication, schemas, migrations, and scalable SQL. Collaborate with Product, Design, and DevOps, and apply secure coding practices. Bonus experience includes RAG, LLM evaluation and observability, or TypeScript frontend development.

Leads and mentors the AgentMate application development team while remaining hands-on with C#/.NET development. Owns engineering execution, application security, PCI compliance, reliability, quality, observability, technical debt, and production support. Partners with Product, Delivery, Infrastructure, Security, QA, and business stakeholders to deliver secure, scalable applications. Responsibilities include architecture and coding, threat modeling, vulnerability remediation, CI/CD improvements, incident resolution, technical planning, documentation, hiring, and team development.

Develop and maintain high-volume, mission-critical enterprise web applications using C#/.NET, ASP.NET MVC, AngularJS, and SQL Server. Responsibilities include full lifecycle development, architecture and design participation, troubleshooting, performance and scalability improvements, AI-assisted workflow development, Agile collaboration, technical mentoring, and supporting multi-tier systems.

Lead end-to-end design, development, deployment, testing, and production support of enterprise web applications. Build scalable client/server architectures, ensure security and data governance, mentor team members, collaborate with product and business stakeholders, and own timely delivery and quality of solutions. Analyze data patterns and support reporting and selection workflows.

Designs, develops, and sustains secure REST APIs, ETL pipelines, middleware, event-driven integrations, and data validation services for DoD modernization. Optimizes schemas and data workflows, manages API gateways, monitors performance, troubleshoots synchronization issues, and ensures interoperability across IL2-IL5 cloud environments. Collaborates with cybersecurity, database, and Agile teams to meet DoD RMF, STIG, Zero Trust, and data governance requirements while maintaining integration documentation and supporting deployment validation.