csharp jobs in San Diego

Design, implement, and maintain automated test systems and scripting environments for advanced radio and communications hardware at TrellisWare. Develop test cases, programming APIs, and user interfaces; operate RF test equipment (spectrum analyzers, oscilloscopes, signal generators); and perform data-driven analysis to characterize performance and diagnose issues.…See more Required skills include VB.NET, C#, Python, Linux, embedded systems knowledge, and test automation; plus object-oriented design, device drivers, and shell scripting. BSEE, BSCE, or BS Physics degree and 1–8 years' experience required.

Staff Software Engineer on the AI Experience Framework (AIUX) team, responsible for full-stack architectural decisions in a JavaScript/component-driven environment powering ServiceNow's AI-first user interfaces. You will own code from design through delivery, architect modular reusable component systems, set framework-level technical direction for AI integration and state management, and serve as an escalation point for production issues across multiple teams.…See more The role requires 8+ years of OO language experience (Java, C++, C#, Go), advanced expertise in modern UI frameworks (React, Angular, Vue, Lit), relational databases, and data structures/algorithms/design patterns at scale.

Design and develop software applications that orchestrate complex automated laboratory workflows and closed-loop learning systems for biotherapeutics discovery. Build data pipelines, visualization tools, and machine learning models for visual inspection, predictive maintenance, and process optimization.…See more Implement IoT integrations, digital lab twins, telemetry systems, and maintain integrations across automation schedulers, LIMS, and data platforms using DevOps best practices and cloud solutions. Requires a Ph.D. in Computer Science, Software Engineering, or Bioengineering with 3+ years of industry experience (or equivalent M.S./B.S. with 10+/13+ years respectively), strong proficiency in Python, SQL, and JavaScript, and experience with lab digitalization and autonomous systems.

Staff Software Engineer role owning full-stack architecture for ServiceNow's AI Experience Framework (AIUX), building modular Lit-based web components that power conversation-first applications. Responsible for end-to-end code delivery from design through production, setting technical direction for framework-level APIs, and serving as an escalation point for production issues across multiple teams.…See more Requires 8+ years of OO language experience (Java, C++, C#, Go), advanced JavaScript/modern UI framework expertise (Angular, React, Vue, Lit), and deep knowledge of data structures, algorithms, design patterns, and performance optimization. Expected to mentor colleagues, coordinate cross-org architecture decisions, and architect scalable component systems for extensibility.

This software engineering internship involves developing embedded software for real-time control of advanced tactical radio equipment, working across the full software development lifecycle from requirements analysis through testing and integration. The role requires applying computer science and engineering principles using multiple programming languages (C++, C#, C, Java, Python, etc.) on embedded real-time operating systems (VxWorks, Linux, QNX, Integrity, Windows CE) and evaluating hardware-software interfaces.…See more Interns will develop test procedures, participate in peer reviews, and utilize modeling tools to conduct experimental tests. The position demands a strong foundation in computer science, computer engineering, software engineering, electrical engineering, or related disciplines.

Software Developer III responsible for designing, developing, and delivering software capabilities in production environments using Agile frameworks. The role requires 5+ years of software development experience with proficiency in at least one modern programming language (Python, Java, C#, Go, C++) and modern architectural patterns (Microservices, Event-Driven, Serverless).…See more Must have 2+ years applying DevSecOps principles with automated security testing tools (SAST, DAST, SCA, container scanners) in CI/CD pipelines within regulated government/DoD environments, and 2+ years building resilient software architectures for DDIL and Navy PaaS environments. Responsibilities include software installation, version control, build processes, automated testing, systems modeling, and technical infrastructure support.

Senior SQL Server Database Developer supporting the Naval Health Research Center to manage and optimize mission-critical databases. The role requires 3+ years of SQL Server expertise including database creation, maintenance, performance tuning, and migration, combined with proficiency in .NET, C++, C#, F#, Visual Basic, or Python.…See more Responsibilities include installing and configuring SQL databases, performance monitoring and optimization, developing data models with SQL Server Analysis Services (SSAS), creating reports with SQL Server Reporting Services (SSRS), and collaborating with cross-functional teams to translate business requirements into technical solutions. An active Secret clearance is required.

Senior Software Engineer responsible for designing, developing, and maintaining control software for advanced life science research instruments. The role spans the full technology stack—from low-level hardware integration and motion control to distributed services and user-facing applications—requiring expertise in C#/.NET, Linux, real-time data acquisition, multi-threaded programming, and RPC frameworks.…See more Core responsibilities include developing data acquisition and signal processing pipelines, collaborating with systems engineering teams, refactoring existing architecture, and troubleshooting complex instrument software. Requires 5+ years of software development experience with strong C# proficiency and familiarity with control systems, communication protocols, and performance optimization.

Senior Embedded Software Engineer responsible for developing complex real-time embedded systems for electroporation therapy delivery, including firmware, device drivers, middleware, embedded UI applications, and system-level software. The role requires 7+ years of embedded software development experience with modern C++, ARM Cortex-M processors, RTOS frameworks (ThreadX, FreeRTOS, etc.), and expertise in real-time control systems, closed-loop feedback, safety-critical software, and cybersecurity implementation.…See more Responsibilities span architecture design, hardware-software integration, verification and validation, CI/CD support, and cross-functional collaboration with electrical, mechanical, and regulatory teams. The candidate must demonstrate proficiency with embedded development tools, debugging hardware, IEC 62304/IEC 60601 compliance standards, and FDA cybersecurity guidance.

This role develops and maintains data integration solutions at Constellation Energy, focusing on ETL processes, data modeling, and analytics platforms. The developer will extract, integrate, and transform data from diverse sources using SSIS, SQL Server, Power BI, and APIs; design and optimize relational and dimensional databases; and participate in DevOps/CI/CD workflows.…See more The position requires 3+ years of hands-on experience with Power BI, DAX, T-SQL, SSIS, API development, and SQL query optimization, along with a technical degree or equivalent.

As a Systems Engineer II, you will integrate hardware and software components, develop and execute test plans, debug system interfaces, and verify requirements throughout the product lifecycle. You will support engineering activities across integration, testing, troubleshooting, and field deployment, collaborating with multi-disciplinary teams to ensure systems perform reliably.…See more The role requires hands-on lab and field testing, root-cause analysis, and use of test equipment (oscilloscopes, spectrum analyzers) and analysis tools like MATLAB. You will maintain engineering specifications, prepare performance evaluations, and present technical results to stakeholders.

Senior Software Engineer role developing web-based applications that integrate with custom embedded systems, using generative AI and AI-assisted coding tools. Requires 6+ years of software engineering experience, proficiency in multiple languages (Python, JavaScript/TypeScript, Go, C/C++, Rust, C#), expertise in Linux systems, web-based UI development, and network software engineering (TLS/HTTPS).…See more Responsibilities include designing and implementing AI-assisted software applications, writing specifications and test documents, executing tests, and interfacing with customers on requirements and design reviews.

As a Systems Engineer I, you will integrate hardware and software components, develop and execute test plans, debug system functions and interfaces, and verify requirements throughout the product lifecycle. You'll support engineering activities across integration, testing, field deployment, and post-deployment phases, analyzing real-world and test data using tools like MATLAB, troubleshooting hardware/software issues, and collaborating with multi-disciplinary teams.…See more The role expects you to maintain engineering specifications and databases, conduct root-cause analyses, and present technical results to stakeholders. A STEM bachelor's degree and hands-on experience with test equipment (oscilloscopes, spectrum analyzers) are required; familiarity with C/C++/C# and Python scripting is preferred.

Senior Software Engineer with 6+ years of experience to design, develop, and maintain web-based applications that integrate with custom embedded systems, leveraging generative AI and AI-assisted coding tools. The role requires expertise in Linux systems, web-based UI development, network software engineering (TLS/HTTPS), and proficiency across high-level languages (Python, JavaScript/TypeScript, Go) and systems languages (C/C++, Rust, C#).…See more Responsibilities include writing requirements and specifications, executing tests, and interfacing with customers on requirements and design reviews.

Senior Software Engineer with 6+ years of experience to design, develop, and implement AI-assisted web-based applications that integrate with custom embedded systems. The role requires expertise across multiple languages (Python, JavaScript/TypeScript, Go, C/C++, Rust, C#), Linux systems, web UI development, and network software engineering (TLS/HTTPS).…See more Responsibilities include writing requirements and test documents, executing tests, and interfacing with customers on design reviews.

Develop embedded software for microcontroller-based systems using C/C++, bare metal, and real-time operating systems, including board bring-up, device drivers, bootloaders, and firmware. Create PC-based diagnostic and test automation applications in C#.…See more Perform unit and integration testing, debug hardware-software issues, and validate software across environments. Collaborate with electrical, mechanical, and quality teams to integrate modules, optimize for performance and power efficiency, and ensure compliance with safety standards.

Enterprise Data & Analytics Architect responsible for designing and developing SQL Server databases, data warehouses, and ETL pipelines using SSIS/Azure Data Factory. The role requires 8–10 years of experience in OLAP/OLTP environments, expert SQL Server knowledge, and proficiency in enterprise reporting (SSRS, Power BI).…See more Candidates will oversee data engineering, BI development, and data science initiatives; mentor developers; and maintain compliance with company policies and federal regulations.

Design, develop, and test secure software using C++, Java, C#, or similar languages, creating novel cybersecurity technology components to defend against cyber exploits and attacks. Responsibilities include developing kernel and user-level software with security-first principles, conducting vulnerability assessments, implementing CI/CD and DevSecOps processes, and using Infrastructure as Code tools like Ansible and Terraform to deploy and configure systems.…See more Perform code reviews, validate security controls (STIGs, CMMC), participate in Risk Management Framework processes, and document software for accreditation. Partner with multidisciplinary teams and government sponsors to integrate custom and third-party components across complex systems.

Senior Software Engineer responsible for designing and implementing scalable solutions for a proprietary learning management system (LMS), modernizing application architecture, and building high-quality full-stack software. The role requires 8+ years of professional software development experience and 5+ years designing enterprise-scale applications, with deep expertise in .NET, C#, Azure, React, TypeScript, and microservices architecture.…See more Responsibilities include leading architectural decisions, supporting CI/CD and automation initiatives, participating in code reviews, reducing technical debt, and mentoring junior engineers while collaborating across Product, QA, and DevOps teams.

Senior Software Engineer at Optum designing, developing, and deploying AI-powered applications and scalable software solutions. Requires 3+ years with .NET/C#/Java, React/ASP.NET MVC/JavaScript/Node.js/Angular, Web APIs, Entity Framework, SQL/NoSQL databases, Azure DevOps/GitHub Actions/Jenkins, Kubernetes/Docker, testing frameworks (Selenium/Gherkin/SpecFlow), and Agile/Scrum.…See more Responsibilities include full-stack development, CI/CD pipeline adherence, quality assurance, performance optimization, compliance with SDLC protocols, accessibility standards, and production support.

Senior Software Engineer responsible for designing, developing, and deploying AI-powered applications and features using modern web and cloud technologies. Will work across the full stack (.NET/C#, React, JavaScript, Node.js, Angular) and cloud infrastructure (Azure, Kubernetes, Docker) to build scalable, high-performance solutions that meet privacy, security, and accessibility standards.…See more Requires 3+ years of hands-on experience with the specified technology stack, CI/CD pipelines, testing frameworks, and Agile practices.

Entry-level software engineer role at BAE Systems supporting C4ISR and geospatial intelligence platforms for defense customers. Candidates must hold or be able to obtain a security clearance and have a Bachelor's degree in Computer Science or related field (or Master's for Associate II level).…See more Required skills include Java, Object-Oriented Programming (OOP), and Object-Oriented Analysis & Design (OOAD); preferred experience includes full-stack development, multiple programming languages (C/C++, C#, Python, JavaScript), cloud platforms (AWS, Azure), containerization (Docker, Kubernetes), CI/CD pipelines, and familiarity with frameworks like Spring, REST APIs, and microservices architecture.

LPL Financial seeks a Senior Full Stack Software Engineer with 7+ years of experience designing and developing complex systems using .NET, C#, Angular, and AWS. The role involves building scalable, cloud-native web applications and services for advisor self-service platforms, with responsibilities spanning end-to-end solution design, API development, database optimization (PostgreSQL/SQL Server), and collaboration across architecture, product, DevOps, and QA teams.…See more The engineer will own code quality, apply software engineering best practices, and support platform modernization initiatives.

Amazon is hiring a Software Development Engineer for their Leo for Government division. The role requires 3+ years of professional software development experience and 2+ years of systems design and architecture expertise.…See more You will design and develop large-scale, multi-tiered, distributed software applications using C#, C++, Java, or Perl, with strong emphasis on object-oriented design, code reviews, and full software development lifecycle practices.

Staff-level full-stack engineer responsible for designing, building, and delivering high-quality features for ServiceNow's Lux admin configuration framework and AI-native platform experiences. You will own the complete development lifecycle from architecture through testing and deployment, mentor engineers, and architect modular, reusable component systems.…See more The role requires 8+ years of JavaScript/web experience with advanced proficiency in modern UI frameworks (Lit, React, Vue, Angular), object-oriented design, algorithms, and relational databases, plus experience integrating AI into workflows and serving as a technical lead.