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Top C# Jobs in San Diego, CA
Consumer Web • eCommerce • Machine Learning • Software • Sports • Analytics
Design, build, and operate scalable AWS-based backend services and APIs for the Collectors Vault. Own architecture and delivery, improve performance and reliability, mentor engineers, and leverage modern AI tools to accelerate development and engineering velocity.
Top Skills:
APIsAWSC#Claude Code CliCodexEvent-Driven ArchitecturesJavaServerless
Consumer Web • eCommerce • Machine Learning • Software • Sports • Analytics
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.
Top Skills:
.NetAi-Assisted Development ToolsAWSC#DatadogDynamoDBKafkaKubernetesPaypalPci-DssPostgresReactStripeSvelteTypescript
Information Technology • Real Estate • Analytics
The Principal Software Engineer will design and oversee architecture for software systems, collaborate with teams, and ensure robust, secure solutions for debt solutions products.
Top Skills:
AWSC#React
Healthtech • Biotech • Pharmaceutical
Develop scientific software for AI-native drug discovery, building data pipelines, APIs, and lab automation integrations while collaborating with scientists.
Top Skills:
AirflowAWSAzureC#DockerGCPGoJavaKubernetesNextflowPrefectPythonSQLTypescript
Agency • Gaming • Professional Services • Design
Design, implement, and optimize gameplay mechanics and systems. Collaborate with designers, artists, and developers to troubleshoot and refine code, optimize performance across platforms, and maintain clean modular code while staying current with game technologies.
Top Skills:
C#C++UnityUnreal Engine
Healthtech • Biotech • Pharmaceutical
Design and develop software for automated laboratory workflows, build data pipelines, implement machine learning models, and integrate various systems to enhance biotherapeutics discovery.
Top Skills:
AWSAzureBashC#C++GitGitlabJavaScriptJmpMatlabPower BIPythonRSASSpotfireSQLTableauVBA
Financial Services
Lead design, development, and modernization of a proprietary Loan Management System. Build and refactor full-stack features, improve scalability, reliability, CI/CD, and observability, troubleshoot production issues, and collaborate with Product, QA, DevOps, and engineering teams while mentoring peers and driving engineering best practices.
Top Skills:
.NetAi-Assisted DevelopmentAngularApplication MonitoringAzure Cloud ServicesC#Ci/CdEntity FrameworkEvent-Driven ArchitectureMicroservicesMicrosoft Sql ServerObservabilityReactRest ApisTypescript
Legal Tech
Design, develop, and maintain integrations, SharePoint Online sites, and AI-driven automation. Build data pipelines (SSIS/SSRS/SQL), Copilot Studio agents, and custom solutions (C#, .NET, PowerShell). Ensure secure Azure-hosted environments, troubleshoot integrations, and collaborate with stakeholders to deliver scalable workflows.
Top Skills:
.NetAderant ExpertApplication InsightsAzure AdAzure App ServicesAzure Data FactoryAzure DevopsAzure Logic AppsAzure SqlC#CleanDataverseDell BoomiDynamics 365Imanage WorkIntappLitera CompareMicrosoft 365Microsoft Copilot StudioMicrosoft TeamsPeppermint (Crm)Power AutomatePowershellSharepoint OnlineSQLSQL ServerSsisSsrs
Software • Analytics • Semiconductor
The Sr. Vision Software Engineer will design, test, and integrate machine vision solutions, develop computer vision algorithms, and troubleshoot production issues while collaborating with engineering teams.
Top Skills:
.NetC#C++OpencvPythonTensorFlowWpf
Information Technology • Professional Services • Consulting
Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.
Top Skills:
.Net 6+AngularAzure App ServicesAzure DevopsAzure FunctionsAzure Key VaultAzure Service BusAzure SqlBlazorC#Ci/CdCosmos DbDockerGraphQLGrpcJSONKubernetesOauthReactRest ApisSQL Server
Healthtech • Social Impact • Telehealth
Volunteer senior developer to design, build, and maintain a cross-platform medical scheduling app (web, iOS, Android). Participate across the full development lifecycle: design, coding, testing, CI, deployments, code reviews, production support, incident management, and platform architecture. Attend weekly standups and commit at least four hours per week.
Top Skills:
AWSC#Css ModulesGitJavaScriptMongoDBNode.jsReact NativeReactScala
Healthtech • Social Impact • Telehealth
Volunteer Principal Full Stack Engineer to lead and contribute across frontend and backend (React/React Native, Node.js, MongoDB). Own feature development, mentor engineers, collaborate with product/design, ship scalable code, and support CI processes. Must commit 4+ hours weekly and attend a weekly standup; first task includes launching a fundraising campaign.
Top Skills:
C#Css ModulesMongoDBNode.jsReact NativeReactScala
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Healthtech • Information Technology • Software
Lead and grow a multidisciplinary engineering team across full-stack, data engineering, and BI. Own people management, technical direction (C#/.NET, SQL, Vue 3, Power BI), data pipeline reliability, roadmap delivery, cross-functional collaboration, and engineering best practices to improve velocity, quality, and health outcomes.
Top Skills:
.NetAngularApache AirflowAutomated TestingAzure SynapseC#Ci/CdData OrchestrationData PipelinesData WarehousingDatabricksDbtEtl/EltFhirHl7ObservabilityPower BIReactSnowflakeSQLVue 3
Software • Quantum Computing • Metaverse • Infrastructure as a Service (IaaS)
Design, build, and operate highly available cloud platform services that power CI/CD, release orchestration, compliance automation, and developer productivity across Azure DevOps and GitHub. Drive architecture, automation, observability, operational excellence, and apply AI and data to improve engineering workflows. Provide technical leadership, mentor engineers, and champion secure engineering and software supply chain protections.
Top Skills:
AIAzureAzure DevopsCC#C++Ci/CdCloud ServicesGithub ActionsJavaJavaScriptPython
Software • Quantum Computing • Metaverse • Infrastructure as a Service (IaaS)
Lead design and implementation of large-scale Pub/Sub and messaging services within Azure Event Grid/Microsoft Fabric. Define scalable, reliable architectures, drive testing and CI/CD automation, build developer tooling, mentor engineers, manage incident response and operational excellence, and collaborate with PMs, EMs, researchers, and customers to deliver production-ready cloud services.
Top Skills:
Azure Cosmos DbAzure Data FactoryAzure Event GridAzure PostgresqlAzure Service BusAzure Sql DbAzure Synapse AnalyticsCC#C++Ci/CdJavaJavaScriptMessaging BrokersMicrosoft FabricObservabilityPower BIPubsubPythonTelemetry
Software
Lead design, develop, and maintain Opcenter/Camstar MES solutions. Translate stakeholder requirements into technical designs, implement C#/.NET and web UI components, integrate APIs, perform code reviews, troubleshoot, and mentor an offshore development team through the SDLC.
Top Skills:
.NetBitbucketC#Camstar DesignerCio/Mio ConfigurationsEquipment Automation FrameworkGitHTML5Insite Web ApplicationJavaScriptJqueryOpcenter (Camstar)PerforcePortal StudioRecipe ManagementRestSAPSoapSpcSQLSvn
Artificial Intelligence • Cloud • Fintech • Machine Learning • Mobile • Software
Lead and mentor a team of Quality Analysts to design, execute, and automate test cases for web and mobile software. Drive an automation-first strategy, extend test frameworks, build testing tools, collaborate with product and engineering, and improve test planning, execution, and reporting processes.
Top Skills:
BambooC#GitlabPlaywrightSeleniumTypescript
Healthtech • Professional Services • Telehealth
Design, develop, and maintain web and mobile features using React/React Native. Build scalable backend services (C#, TypeScript, Ruby on Rails) and RESTful APIs. Work with AWS (ECS/EKS/Lambda), Terraform, Kafka/Debezium, and databases. Collaborate with product and design, follow CI/CD and best practices, and operate autonomously.
Top Skills:
Api GatewayAthenaAws EcsAws EksAws LambdaAzure DevopsC#CloudwatchDebeziumFreshworksKafkaMicroservicesNetSuiteNservicebusPostgresReactReact NativeRestful ApisRuby On RailsS3SalesforceSnsTerraformTypescript
Software • Financial Services
The Senior Software Engineer designs and develops complex features within OneStream solutions, ensuring technical excellence and mentoring other engineers. Responsibilities include architectural design, UI development, API creation, performance improvements, and collaboration across teams.
Top Skills:
.NetAngularAsp.NetAzureBlazorC#Ci/CdGitJSONReactSQLWpfXML
Software • Financial Services
Develop, design, and maintain OneStream solution accelerators using Microsoft .NET. Lead design discussions, produce documentation and unit tests, collaborate with product and engineering, and enable partner adoption through toolkits and best-practice guidance.
Top Skills:
.NetAPIsC#OnestreamVb.Net
Software • Financial Services
Ensure platform reliability, performance, and availability by implementing observability, automating infrastructure, participating in on-call rotations and post-mortems, partnering with Product and Engineering, designing scalable architectures, mentoring teammates, and integrating Dynatrace with Azure DevOps and Jira while supporting compliance (SOC/FedRAMP).
Top Skills:
.NetAksAlpineAnsibleAppinsightsArm TemplatesAWSAzure DevopsBashBicepC#ChefCloudFormationDatadogDebianDynatraceEksGCPGitGitGksGrafanaHelmJIRAKubernetesLog AnalyticsAzureNew RelicOnestream SoftwareOpenshiftPowershellPowershell DscPrometheusPuppetPythonRest ApisSQLTerraformUbuntu
Artificial Intelligence • Machine Learning • Other • Payments • Social Impact
The Senior Software Engineer will develop scalable systems for cash delivery, improve developer workflows, and collaborate with teams to enhance program delivery.
Top Skills:
AWSC#GoJavaPythonRuby
Software • Quantum Computing • Metaverse • Infrastructure as a Service (IaaS)
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.
Top Skills:
CC#C++Cloud Ai PlatformsJavaJavaScriptLlmsPython
Aerospace • Defense • Manufacturing
The DevOps Engineer III enhances software infrastructure for unmanned aircraft systems, focusing on backend integrations, frontend development, CI/CD pipelines, and system monitoring, collaborating with engineering teams.
Top Skills:
AngularAnsibleAWSAzureCC#C++CSSDatadogDockerGitlab CiGoGrafanaHTMLJavaScriptJenkinsKafkaKubernetesLinuxNew RelicNode.jsNoSQLOpentelemetryPosixPythonReactRestfulSQLTerraformVue
Aerospace • Defense • Manufacturing
Lead architecture and implementation of software for autonomous UAS systems; mentor engineers; ensure compliance with aerospace standards; optimize CI/CD pipelines.
Top Skills:
.NetAWSBashC#C/C++Ci/CdGitGitMatlab/SimulinkPowershellPythonVisual Studio
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