Top Remote C# Jobs in San Diego, CA

As a Displays Software Engineer, you'll design and build real-time user interface applications for automated aircraft systems, ensuring safety and usability across platforms.

Build and ship full‑stack features for transportation management and other client products. Design and implement APIs and UIs, collaborate with product and design, own delivery, write modular testable code, troubleshoot and iterate quickly, and mentor peers.

Support customer and partner relationships by demonstrating radar value, lead integrations with C2/VMS/autonomous platforms, plan and execute installations, tune systems, provide technical support, analyze post-demo data, create training materials, collect feedback, and travel up to 50%.

Design, develop, test, and deploy .NET solutions (APIs and web apps). Build and consume RESTful services, work with SQL and NoSQL databases, use cloud (Azure/AWS) and Docker, apply unit/integration/performance testing, participate in code reviews, define features via spikes, and architect scalable, high-performance systems. Support occasional after-hours and on-call rotation.

Design, develop, and execute automated and manual tests for enterprise web applications. Build and maintain automation scripts, dashboards, and test cases; perform backend/database validation, API testing, defect tracking, and release verification across multiple projects. Support test strategy, execution, and post-production validation.

Design and implement AI-powered educational software, focusing on generative AI systems, mentor peers, and ensure scalable, secure architecture.

Lead design, development, and maintenance of enterprise-grade React + TypeScript applications. Own front-end performance, responsiveness, and security; integrate with .NET/Azure backends; mentor junior developers; perform code reviews and debugging; modernize legacy apps; collaborate with designers, offshore teams, and stakeholders in Agile ceremonies.

Develop and maintain language frontends for the Joern platform for automated software vulnerability analysis, collaborating with a global team.

Senior individual contributor owning integration architecture and API design across products. Defines API contracts, patterns, tooling, and governance; leads cross-team technical decisions; implements integration services; operates integrations on cloud (AWS preferred); mentors engineers and documents standards, RFCs, ADRs, and runbooks.

Design and own AI-agent-driven test workflows and the automated verification framework. Build test context, select models and tooling, validate AI-generated code and tests, operate test automation across UI/API/mobile/data, ensure security and compliance, mentor teams, and continuously improve agent orchestration and observability.

Design, build, and support Dynamics 365 CE/Dataverse solutions including C# plugins, Power Apps, Power Automate flows, and API/Azure-based integrations. Implement DocuSign integrations, collaborate with QA and architecture, and support testing, deployments, and post-release fixes.

Design and deliver complex, scalable SaaS features end-to-end using AI-assisted development tools. Own specifications, implement and review AI-generated and human code, build REST APIs, maintain UI and backend services, drive AI-assisted workflows, and mentor cohort engineers on tooling, spec writing, and best practices.

Lead technical design and delivery of complex, scalable SaaS features using AI-assisted development. Own specification quality, implement and review AI-generated code, design REST APIs, mentor engineers, and drive cohort-wide standards for architecture, testing, and DevOps practices.

Develop, automate, and execute tests for React UI, NextJS middleware, and C# APIs. Build test automation across business domains, triage and prioritize work, mentor teammates, and collaborate with internal and external teams to ensure reliable, performant, and scalable Online Banking services.

Lead technical delivery for Life Insurance and Annuity clients: design solutions and architectures, produce technical design docs, mentor distributed teams, drive code quality and integrations (APIs), maintain mainframe and .NET codebases (COBOL, C#, DB2/SQL), and leverage AI tools (GitHub Copilot, Claude Code, custom agents) for automation and efficiency.

Design, build, and lead AWS-based contact center solutions (Amazon Connect, Salesforce Service Cloud Voice). Develop integrations, implement CloudFormation/Lambda, apply IaC and CI/CD, perform code reviews, provide technical advisory, documentation and training, and ensure secure, scalable architectures.

Configure and implement Alkami digital banking products and third-party integrations, troubleshoot technical issues, perform testing and validation, document configurations, coordinate with project managers and vendors, and support clients through implementation and post-go-live stabilization.

Design, build, test, and maintain enterprise applications and integrations for VA healthcare modernization. Work in Agile teams to develop APIs, microservices, CI/CD pipelines, and DevSecOps practices, support legacy VistA/MUMPS systems, troubleshoot performance and integration issues, and ensure federal cybersecurity and compliance.

Design, build, and evolve scalable backend systems for WWE Champions. Support live-ops, incident management, reliability improvements, and pre/post-release backend support. Collaborate with client (Unity) engineers, drive technical roadmap, mentor cross-functional teams, and optimize performance and content pipelines for live mobile games.

Senior Microsoft Dynamics and Power Platform Developer responsible for designing, building, and deploying Dynamics 365 case management solutions. Work with clients and internal teams through discovery, design, build, test, and deployment phases; develop integrations and customizations; create wireframes/prototypes; support data migration; improve development and release processes; and travel to client sites for demos and meetings.

Lead a software development team to design, build, test, and deliver product features. Provide hands-on technical leadership, oversee architecture, code quality, releases, and production support. Mentor direct reports, collaborate with product and support teams, and evaluate new technologies and prototypes to improve delivery and product capability.

Design, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.

Debug and resolve complex hardware/software issues for manufacturing test stations. Lead commissioning and release-to-manufacturing of opto-electrical test stations, improve test uptime, provide documentation and support to contract manufacturers and vendors, coordinate equipment RFQs/RMAs, and use AI tools for data analysis.

Lead design and delivery of complex backend features for a high-scale online banking platform. Own code from design to production, modernize legacy systems, develop microservices, design APIs, implement tests, ensure secure coding, use AI-assisted tools, troubleshoot issues, and document APIs while collaborating with product, QA, and front-end teams.

Design, build, and implement Dynamics 365 solutions in a cloud/microservice environment. Develop C#/.NET plugins, APIs, and Azure Functions; participate in requirements analysis, code reviews, testing, deployment, and SDLC documentation. Collaborate with Agile teams, interface with clients, mentor junior developers, and support VA federal projects.