Top C# Jobs in San Diego, CA

Supports configuration and development of the FASTDS-VS COTS application, including requirements analysis, reference table and user access configuration, scripting, debugging, source control, testing, implementation specifications, and production support. The role requires familiarity with software development methodologies, SQL databases, object-oriented development, coding standards, and Agile practices. Preferred experience includes web services, APIs, AWS, and SQL stored procedures.

Develop, test, debug, document, and maintain software for the Sea Hawk Eye Emitter Library Development program. Analyze user and system needs, develop applications and scripts, collaborate with subject matter experts, resolve software issues, prepare operating instructions, and ensure software standards are met. The role requires knowledge of SQL, Python, JavaScript, C#, Git, Docker, virtual machines, cloud technologies, and cybersecurity concepts.

Leads architecture, technical strategy, and implementation of scalable cloud-native enterprise applications on Microsoft Azure. Defines engineering standards, microservices and API architectures, reviews designs and code, guides development teams, supports feature development, and drives modernization, performance, security, and operational excellence. Collaborates with stakeholders and product teams to translate business requirements into secure, reliable, maintainable distributed solutions while mentoring engineers and influencing long-term technology direction.

Design, develop, and operate highly scalable and resilient Azure VM Scale Set cloud services. Own features from architecture through deployment and operations, solve distributed-systems challenges at hyperscale, and drive reliability, security, performance, disaster recovery, testing, monitoring, automation, and engineering best practices. Collaborate across teams to deliver platform capabilities and customer outcomes.

Full Stack Engineer responsible for building responsive frontends (JS/TS, React preferred) and backend services (Python, Go, or Node.js/TypeScript), designing RESTful APIs, managing databases (Postgres/MongoDB), and deploying on cloud (AWS). Collaborate with teams, optimize performance, and apply DevOps practices (Docker, Kubernetes, CI/CD). Requires strong problem-solving, communication, and 3+ years of experience.

Design, build, test, deploy, and operate scalable, secure Azure networking software and automation tools. Act as DRI, monitor production, troubleshoot incidents, run root-cause analysis, and drive reliability, performance, and cost improvements. Collaborate with PMs and architects, participate in design/code reviews, mentor engineers, and champion security, privacy, and compliance.

Lead as a customer‑embedded principal engineer to design, build, and ship production-grade solutions. Translate business needs into technical approaches, influence senior stakeholders, accelerate delivery in ambiguous environments, and transition work to FDE crews while driving long-term account impact.

Build and maintain scalable backend services, RESTful and GraphQL APIs, database schemas, and cloud infrastructure. Own architecture decisions, optimize performance and reliability, improve CI/CD practices, collaborate across product and engineering teams, lead architecture sessions, review code, and mentor junior developers.

Develop cross-platform C++ and Qt software for network device discovery, monitoring, and data collection across Windows and Linux. Build high-performance, concurrent, asynchronous systems that communicate with thousands of devices using SNMP, SSH, ICMP, WMI, and related protocols. Own testing, troubleshoot issues across application, operating-system, and network layers, optimize reliability and performance, and collaborate with backend, UI, QA, and product teams.

Provides technical leadership for Azure SQL databases supporting a highly available Azure service. Responsibilities include database performance tuning, reliability and capacity planning, schema changes, data migrations, observability, incident response, root cause analysis, operational automation, and technical strategy. The role partners with software engineers, SREs, and architects to improve scalability, durability, cost efficiency, and long-term service reliability across teams.

Designs and develops FPGA SmartNIC networking acceleration for Microsoft Azure. Responsibilities include hardware architecture evaluation, RTL coding in Verilog/SystemVerilog, simulation, hardware testing, debugging, verification, scripting, software development, Agile collaboration, and production DevOps support. The role partners across hardware and software teams to deliver cloud networking infrastructure, including SDN capabilities, packet manipulation, and performance improvements.

Design and implement PostgreSQL internals and indexing/query features for large-scale document workloads, extend query engine with BSON-aware operators and custom scan nodes, tune index pruning and storage, profile distributed systems for performance, collaborate with open-source DocumentDB/PostgreSQL communities, and participate in design/code reviews.

Own operations and reliability for hyperscale Azure GPU clusters and interconnect fabrics. Lead production incident triage, mitigation, recovery, root-cause analysis, and cross-stack debugging across hardware, PCIe, GPUs, firmware, drivers, and software. Develop automation, telemetry, diagnostic tools, operational playbooks, and escalation procedures to improve observability and reduce mitigation time. Partner with engineering teams and manufacturers to resolve systemic issues affecting AI training stability, GPU availability, and customer SLAs.

Design, develop, test, and deliver enterprise applications, APIs, services, integrations, and web applications. Own projects from architecture and technical design through production release and handoff. Troubleshoot complex issues across applications, databases, integrations, and cloud environments; contribute to architecture, code reviews, testing, CI/CD, documentation, and production support. Partner with Product, QA, Architecture, and engineering teams to deliver scalable, secure, maintainable solutions.

Leads photonic integrated circuit test software architecture, infrastructure improvements, test-station automation, and hardware-control software development. Oversees software migration across LabVIEW, Python, MATLAB, C#, and C++, while leading a small software team and mentoring engineers. The role supports electrical and optical testing of InP-based transceiver PICs at wafer, die, and subassembly levels, including vision systems, probe positioning, calibration, and test software revision control.

Leads AI-enabled quality engineering and test automation across the SDLC. Builds automated UI, API, database, and batch testing frameworks; integrates intelligent testing into CI/CD pipelines; applies AI for test generation, defect prediction, root-cause analysis, regression optimization, anomaly detection, and quality monitoring. Partners with cross-functional teams, develops quality gates and dashboards, evaluates emerging AI tools, and mentors QA staff. Requires 5+ years of QA or test automation experience, programming proficiency, and hands-on AI/ML implementation.

Design, develop, secure, and maintain mission-critical Microsoft-platform software for DoD programs. Build C# and .NET applications, responsive JavaScript and EXT JS interfaces, REST APIs, and optimized SQL Server databases. Apply secure coding, STIG, RMF, threat modeling, vulnerability remediation, documentation, and compliance practices. Integrate Kiro AI capabilities, collaborate with cybersecurity and engineering teams, and support deployment and sustainment in classified or controlled environments.

Lead and mentor DevOps engineers while designing, operating, and improving CI/CD pipelines, developer tooling, infrastructure-as-code, Kubernetes and Kafka environments, and observability solutions. Partner with architecture, security, data, development, and product teams to improve application resiliency, uptime, performance, and operational best practices across SaaS production systems.

Design and operate large-scale, AI-native cloud infrastructure (especially Kubernetes/AKS). Improve service quality, automate incident prevention/remediation, accelerate engineering productivity, and integrate AI tools into development workflows.

Designs and develops software to automate onboarding, validation, management, tracking, and lifecycle operations for new hardware deployed in Microsoft datacenters. Responsibilities include requirements analysis, system design, coding, debugging, optimization, reliability engineering, monitoring, on-call support, and incident response. The role collaborates with Azure teams and stakeholders while improving scalability, security, availability, observability, and performance across cloud and distributed systems.

Build and maintain large-scale automation and control systems for Azure Kubernetes Service. Responsibilities include improving Kubernetes cluster performance and reliability, automating cluster lifecycle operations, developing safety and observability tools, supporting secure infrastructure changes, participating in production operations and on-call rotations, and mentoring engineers through design reviews and continuous improvement.

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.