Top C# Jobs in San Diego, CA

As a Sr. Software Engineer at Bloomerang, you will lead technical direction, mentor engineers, and enhance SaaS solutions while utilizing .NET and AI tools. You will ensure scalable, maintainable applications, advocate for Agile workflows, and focus on quality outcomes in software development.

Design, implement, test, and modernize backend services and integrations (TypeScript/Node.js and C++). Lead large projects, write technical specifications and API contracts, enforce coding standards, coach engineers, and drive legacy-to-modern migrations within online banking and core systems.

Designs, develops, tests, documents, and integrates algorithms and software for intraoperative neuromonitoring medical devices. Responsibilities include machine learning model development using clinical data, software architecture, application development, root-cause analysis, cross-functional product collaboration, and full lifecycle ownership of algorithm projects. The role requires compliance with FDA regulations, ISO 13485, and related medical-device standards, with travel up to 10%.

Design, build, test, and operate production-grade, secure, and scalable software and services. Partner with customers to translate requirements into technical designs, drive engineering best practices (CI/CD, testing, observability), deliver end-to-end solutions, lead technical workstreams, and apply AI/LLM approaches where appropriate to produce production-ready outcomes.

Leads major technical initiatives while designing enterprise identity systems, authorization models, and scalable multi-tenant SaaS architecture. Builds platform components with .NET/C# on AWS, improves data pipelines, resolves complex production issues, and shapes the technical roadmap. Mentors engineers, drives architecture and reviews, coordinates across teams, and supports security, compliance, automation, and continuous platform improvement.

Develop and maintain mission-critical full-stack software for a DoD program. Build Java Spring Boot microservices, React applications, REST APIs, WebSocket features, and RabbitMQ integrations. Manage databases, CI/CD pipelines, Kubernetes deployments, automated testing, Git workflows, technical documentation, and Agile tasking. Provide code reviews, architectural input, technical leadership, and mentorship to junior developers. The role requires an active Top Secret clearance, U.S. citizenship, and approximately 10 weeks of travel annually.

Develops, tests, documents, enhances, and maintains software solutions using Appian and related technologies. The role includes application development, process modeling, system integration, security remediation, performance improvement, user story analysis, technical documentation, and collaboration within an Agile software development team.

Develops, tests, documents, enhances, and maintains software solutions using Appian and related technologies. Designs integrations with external systems, resolves technical issues, remediates security vulnerabilities, improves performance, participates in requirements analysis and Agile development processes, and documents standards. The role also contributes to planning, mentors other engineers, collaborates with team members, and stays current with software development practices and technologies.

Lead the DevOps team’s technical vision and roadmap for WWE 2K. Design and improve CI/CD pipelines, infrastructure, deployment automation, developer tooling, and environments across Windows and Linux. Ensure reliability, scalability, observability, and performance while establishing deployment and operational standards. Collaborate across studios and disciplines, improve workflows and documentation, and provide technical leadership in a distributed, multi-team game development environment.

Designs, develops, maintains, and supports software applications focused on HIPAA EDI transactions for dental and vision healthcare benefits. Responsibilities include Agile development, production issue triage, technical investigation, secure coding, unit testing, architecture and impact analysis, documentation, and implementing newly legislated EDI standards. The role also serves as a subsystem subject matter expert and uses AI tools responsibly.

Develop and maintain full-stack features for a secure, cloud-based medical imaging platform. Responsibilities include frontend and Perl API development, PostgreSQL query optimization and schema changes, debugging across web, database, storage, DICOM, and HL7 systems, code reviews, testing, documentation, and production support. The role also contributes to AWS, Kubernetes, Docker, CI/CD, and Agile initiatives while expanding across multiple languages and codebases.

Develop and maintain automated test scripts with guidance from senior automation team members. Create and execute test cases, plans, and scenarios based on requirements. Alternate between manual validation and automation according to delivery needs. Build expertise in automation frameworks, scripting, CI/CD, and quality engineering practices while collaborating effectively with cross-functional teams in a remote environment.

Designs and develops full-stack features for a network-management microservices platform. Responsibilities include building C#/.NET services, APIs, Kubernetes workloads, web interfaces, deployment automation, monitoring tools, and secure DevSecOps solutions. The role contributes to architecture, technical specifications, documentation, and AI-assisted development workflows while collaborating with product owners and external stakeholders.

Develop and enhance IEM’s Infor SyteLine ERP system through the full software development lifecycle. Responsibilities include gathering requirements, coding in Infor Mongoose, VB.NET, and C#, developing SQL-based reports, testing, documentation, upgrades, troubleshooting, end-user support, and training. The role also supports system conversions, maintains applications, and collaborates on ERP solutions involving manufacturing and accounting processes.

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.

Lead technical ownership of InfiniBand and GPU interconnect fabric operations for hyperscale AI supercomputers. Drive incident response, deep multi-layer debugging across hardware/firmware/drivers/OS, and define failure models, playbooks, telemetry, and automation to improve reliability, observability, and scalability of GPU clusters and platform SLAs.

Designs and leads enterprise application architecture across .NET, React, and Azure. Responsibilities include defining technical strategies and roadmaps, guiding engineering teams, designing cloud-native systems and APIs, supporting production applications, and improving reliability, observability, performance, security, and scalability. The role also involves stakeholder engagement, technical leadership, mentoring, consulting, distributed-team collaboration, and adoption of AI-assisted development tools such as GitHub Copilot and Claude.

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.

Leads hands-on full-stack development across architecture, implementation, testing, deployment, and support. Designs secure, scalable C#/.NET and Angular applications, cloud integrations, APIs, and data solutions on AWS. Guides developers, establishes engineering standards, manages CI/CD and automated testing, troubleshoots complex issues, and drives cloud optimization, security, and technical debt reduction. Collaborates with product, architecture, DevOps, analytics, and project teams while supporting migration of on-premises applications to AWS.