44 c full stack developer jobs at 27 companies in Downey, CA
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
Harrington Process Solutions: Distributes and fabricates industrial fluid process and flow control products.
6+ YOE6+ years full stack development with C#, .NET Core, ASP.NET Core, SQL Server and JavaScript; experience with React/Angular/Vue, Azure, Docker, CI/CD, Git, EMR not required; Bachelor's or equivalent.
PBK: Provides architectural and engineering design for specialized facilities.
7+ YOE7+ years full-stack development experience, proficiency with JavaScript/TypeScript, React, backend tech (Node.js/.NET/C#/Python), Azure, API integrations, CI/CD, and secure development practices; bachelor\u0002s degree preferred.
React, TypeScript, Node.js, .NET, C#, Python, Salesforce, Deltek Vantagepoint, Autodesk Forma, Microsoft Azure, GitHub Enterprise, Azure DevOps, Microsoft 365, Microsoft Graph API, Microsoft SharePoint, Docker, Azure Monitor, Application Insights, Log Analytics
Perr&Knight: Provides actuarial consulting and software solutions for the insurance industry.
6+ YOE6+ years full-stack experience with C#/.NET Core, Angular/TypeScript, JavaScript/CSS, RESTful APIs, MS SQL Server, public-facing SaaS experience, and hands-on use of AI coding tools.
Angular, TypeScript, C#/.NET Core, JavaScript, CSS, MS SQL Server, Claude Code, Codex, RESTful APIs
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's degree or equivalent, 5+ years software development experience, proficiency in Java/C#/Python/JavaScript/HTML/CSS, React/Angular, Node.js/.NET, cloud platforms, Microsoft SQL Server, Git; CompTIA Security+ and ability to obtain DoD SECRET; U.S. citizenship; onsite in Norco, CA.
AmaWaterways: Provides luxury river cruise vacations on international waterways.
5+ YOE5+ years software development experience or bachelor's degree; strong ASP.NET (C# or VB.NET), MVC, SQL, web technologies, cloud/DevOps (Azure), CI/CD, secure coding, and CompTIA Security+ required.
ASP.NET, Model-View-Controller (MVC), C#, VB.NET, Microsoft Visual Studio, Azure DevOps, Team Foundation Server, Git, GitHub Actions, SQL Server, Oracle, JavaScript, jQuery, Ajax, HTML, DHTML, CSS, XML, XSL, JSON, SOAP, LDAP, Telerik, Microsoft Internet Information Services (IIS), Microsoft Azure, ARM templates, Bicep, Terraform
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
5+ YOEBachelor's in CS/engineering or 5+ years software development; full-stack experience; proficiency in Python/JavaScript/C#/Java; strong communication and problem-solving; AI and systems knowledge preferred.
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree required; 7+ years production C#/.NET development; front-end experience with Vue/React/Angular in TypeScript; experience with AWS (S3, SQS, Dynamo, ElastiCache), Apache Kafka, Datadog, and relational databases; unit-testable development and mentoring experience.
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOE5+ years software development; Bachelor's in CS/Engineering or equivalent; proficiency in Java/C#/Python/JavaScript, front-end (React/Angular), back-end (Node.js/.NET), cloud (AWS/Azure/Google Cloud), Microsoft SQL Server, Git; CompTIA Security+; must obtain DoD SECRET and be U.S. citizen; onsite Norco, CA.
West Coast University: Private university offering degree programs for healthcare professionals.
5+ YOE5+ years hands-on full stack web and microservices development with C#/.NET, JavaScript/TypeScript, SQL Server, and React or Angular; technical leadership experience; Bachelor's degree in CS/IT/IS or equivalent experience; experience with LLM-based coding agents.
Oakland or California or Long Beach or El Dorado Hills or Huntington Park or Lodi or Rancho Cordova
$116k-$174k/yrHybridFull Time
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
4+ YOE4+ years enterprise app/cloud experience, 4-7 years software development with API focus, 3+ years Microsoft Azure (API Management, Functions/App Services, Azure AD) experience, REST/OpenAPI/MuleSoft, C#/.NET/Java/Python, CI/CD and IaC (Ansible), Docker; healthcare domain preferred.
Microsoft Windows, Linux Server, Remote Desktop Services, Microsoft Azure, Microsoft Azure API Management, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure AD, REST, HTTP, JSON, OpenAPI (Swagger), MuleSoft, C#/.NET, Java, Python, Service Bus, Event Grid, Bitbucket Pipelines, GitHub Actions, Ansible, Docker, AWS, GCP, Citrix
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years software engineering experience with Python, React, or C++; experience with RESTful APIs, microservices, Docker, Kubernetes; ability to obtain TS/SCI with polygraph; bachelor\u0002s in STEM or 8+ years in lieu.
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years software engineering; production web apps with JavaScript/TypeScript and React; familiarity with backend languages (Go, C++, Rust); experience designing architecture, CI/CD, monorepos, and integrating frontend tooling; Bachelor's or equivalent; must be a U.S. Person.
Rangeview: Operates an automated foundry producing precision metal aerospace parts.
2+ YOE2+ years building production web apps; frontend with TypeScript and React; backend with C#, ASP.NET, Entity Framework; relational DB design; ability to work onsite in El Segundo and meet U.S. Person requirements.
XeNASDAQ: EEFT: Provides international money transfers and online currency exchange services.
3+ YOE3+ years building production web applications; strong frontend with Vue.js or React; backend proficiency in C#/.NET (or Java/Kotlin/Go); SQL and AWS (SQS, DynamoDB, S3, ECS, Lambda); writing tests and using agentic coding tools.
Santa Ana or California or New Jersey or Texas or Florida or Shanghai or Japan or Hong Kong or Canada or Mexico or Germany or France or United States
$166k-$269k/yrHybridFull Time
Collectors: Providing authentication and grading services for high-value collectibles.
7+ YOE7+ years building web apps, APIs, and distributed systems; 3+ years AWS; proficiency in Python, C#, or Java; experience with React/Next.js; use of AI tools (Claude Cowork, Codex); staff-level technical leadership.
AWS, Claude Cowork, Codex, Python, C#, Java, React, Next.js, e-Verify