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226 software application engineer jobs at 111 companies in El Monte, CA

3w
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Application Software Engineer
San Francisco or Los Angeles
$125k-$175k/yr HybridFull Time
Sift
Sift: Software platform for high-frequency hardware telemetry observability.
2+ YOE2+ years software or data engineering experience, proficiency in Python and REST APIs, EMR not relevant, strong communication, problem solving, and STEM bachelor's degree required.
Python, REST APIs, Sift APIs, Kafka, InfluxDB, SQL, AWS, GCP, Azure
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2w
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Application Software Engineer
Hawthorne, California, United States
$125k-$195k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
1+ YOEBachelor's in CS/engineering or 2+ years software experience, 1+ years full‑stack development, expertise in system design, testing, CI/CD, performance profiling, and SPA development.
Python, C#.NET, Go, Scala, Java, Make, Bazel, Pants, Buck, Gradle, pip, npm, UNIX, Terraform, Ansible, Puppet, Apache Kafka, RabbitMQ, ActiveMQ, Docker, Kubernetes, Angular, React, PostgreSQL, SQL Server
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3mo
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Application Engineer I
Costa Mesa, California, United States
$90k-$100k/yr OnsiteFull Time
Mission Critical Electronics
Mission Critical Electronics: Designs and manufactures specialty electrical power and charging solutions.
Bachelor's degree in engineering, computer science, or a related technical field; strong technical knowledge, communication, teamwork, office software and CRM proficiency required.
CRM, product lifecycle management software
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1mo
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Application Developer
Pasadena, California, United States
$40-$47/hr OnsiteFull Time
Caltech
Caltech: Provides university-level education and scientific research services.
4+ YOEBachelor's in CS or related and 4+ years software engineering experience; expertise in Python, Linux/UNIX, shell scripting; familiarity with AI/ML, Docker, Kubernetes, Jenkins, Git/GitHub, Jira, and SQL; strong communication skills.
Python, Linux/UNIX, shell scripting, AI/ML, Docker, Kubernetes, Jenkins, Git, GitHub, Jira, SQL
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4w
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Application Developer
Rancho Santa Margarita, California, United States
$80k-$120k/yr OnsiteFull Time
Applied Medical
Applied Medical: Manufacturer of advanced medical devices and surgical products.
3+ YOEBachelor's in CS/IT/Software Engineering or equivalent experience; proficiency in C#/.NET Core, React, TypeScript; 3+ years experience; knowledge of SQL Server/PostgreSQL/Azure Cosmos DB, Azure deployments, CI/CD, automated testing, and strong communication.
C#, .NET Core, React, TypeScript, SASS, SCSS, Flexbox, CSS Grid, Webpack, Vite, npm, yarn, SQL Server, PostgreSQL, Azure Cosmos DB, RESTful, GraphQL, Azure, App Services, Azure Functions, Docker, Kubernetes, Figma, xUnit, NUnit, Cypress, Playwright, React Testing Library, Azure Active Directory (Azure AD), Auth0, Azure DevOps, GitHub Actions, GitHub Copilot, Git, Azure Service Bus, RabbitMQ
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3w
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Sr. Principal Application Engineer
Irvine or San Jose
$175k-$225k/yr OnsiteFull Time
Celero Communications
Celero Communications: Developing high-performance coherent DSP technology for AI connectivity.
8+ YOE8+ years experience in DSP/optical communications, bachelor’s (or higher) in engineering/physics, ability to travel 25–40%, strong DSP and optics fundamentals, hardware/software debugging, documentation and customer-facing communication skills.
Python, MATLAB
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1w
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Senior Software Engineer
Columbus or Irvine or United States
HybridFull Time
Aegis Ventures
Aegis Ventures: Venture studio building healthcare and artificial intelligence companies.
5+ YOE5+ years of software engineering experience with Elixir and/or Python, production application development, scalable distributed systems, project ownership, and strong communication and collaboration skills.
Elixir, Python, AWS, Azure, Google Cloud, Docker, Kubernetes, PostgreSQL, NoSQL
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1w
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Staff Software Engineer
Boston or Costa Mesa
$22k-$292k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
12+ YOE12+ years of software engineering experience, technical degree, full-stack expertise, enterprise application experience, JavaScript, React, TypeScript, and U.S. Person status required.
Forge, JavaScript, React, TypeScript, Next.js, Enterprise Resource Planning (ERP), Manufacturing Execution System (MES), Warehouse Management System (WMS), Customer Relationship Management (CRM)
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3d
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Software Developer – C#/.NET Desktop Application
Norco, California, United States
$39-$58/hr OnsiteFull Time
VSolvit
VSolvit: Providing technology services and data solutions for government agencies.
3+ YOERequires 3–10+ years of software development experience, C#/.NET desktop development, WPF, XAML, object-oriented programming, testing frameworks, Git, U.S. citizenship, and ability to obtain a government security clearance.
C#, .NET, WPF, XAML, Delphi, Test Driven Development, NUnit, xUnit, MSTest, Moq, Git, TPL, YAML, Azure DevOps, GitHub Actions, Jenkins, Jira, Confluence, Telerik UI
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3w
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Application Developer - JavaScript
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years web application development with JavaScript/TypeScript, experience with modern web frameworks, CI/CD, foundational cartography knowledge, bachelor's degree, and ability to travel up to 25–50%.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, React, Angular, Svelte, Vue, WebGL, ArcGIS Experience Builder, CI/CD
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3w
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Software Engineer 3, Security
Agoura Hills, California, United States
$89k-$136k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
3+ YOE3+ years software/infrastructure engineering with hands-on application or infrastructure security, ability to read code/config, AWS/Kubernetes fluency, and strong communication skills.
Wiz, Veracode, SAST/DAST, Jira, AWS, Kubernetes, Terraform, GitLab CI/CD, ArgoCD, Python, Go, Java, Scala, Kotlin
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1mo
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SENIOR APPLICATION DEVELOPER
Los Angeles County, California, United States
$8k-$11k/mo HybridFull Time
County of Los Angeles
County of Los Angeles: Provides public services and healthcare to Los Angeles County residents.
Technical lead experience designing and maintaining multi-cloud enterprise applications; proficiency with APEX, Laravel/PHP, cloud platforms, SQL/PLSQL, Atlassian tools, and enterprise reporting; ability to translate business needs into system designs.
OCI, AWS, Azure, Atlassian, Cognos, Oracle APEX, Laravel (PHP), HTML, JavaScript, CSS, Jira, Jira Service Management, Confluence, AWS Connect, IAM, Kubernetes, SQL, PL/SQL, Power BI Gateway, eCAPS, eHR, Microsoft PowerPoint, Microsoft Visio, Microsoft SharePoint
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3w
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Software Engineer 3, Security
Agoura Hills, California, United States
$89k-$136k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
3+ YOE3+ years software or infrastructure engineering with application/infrastructure security experience; ability to read code and infra, AWS/Kubernetes fluency, familiarity with Veracode and Wiz, CI/CD security integration.
Wiz, Veracode, Jira, AWS, Kubernetes, Terraform, GitLab CI/CD, ArgoCD, SAST/DAST, Python, Go, Java, Scala, Kotlin
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1mo
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Software Engineer
Columbus or Boston or Chicago or Austin or Los Angeles or United States or Canada or United Kingdom or Australia
$125k-$165k/yr HybridFull Time
Loop Returns
Loop Returns: Software platform automating e-commerce returns and post-purchase experiences.
2+ YOE2+ years building web applications, backend services, or APIs. Experience using AI agents in engineering workflows, testing and CI/CD, and familiarity with PHP/Laravel, Vue.js, AWS Serverless, MySQL, or DynamoDB is a plus.
Claude Code, Cursor, PHP, Laravel, Vue.js, MySQL, DynamoDB, Kubernetes, AWS, Serverless, CI/CD, lambdas
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3d
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IT Application Developer II (Remote)
Los Angeles, California, United States
$127k-$130k/yr RemoteFull Time
California FAIR Plan Association
California FAIR Plan Association: Property insurance for high-risk California homes and businesses.
4+ YOEBachelor's degree or equivalent practical experience, 4+ years of application development, and 2+ years with Duck Creek Policy or Billing; requires enterprise application, Agile, configuration, and integration experience.
Duck Creek, Duck Creek Policy, Duck Creek Billing, Agile, APIs, CI/CD
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6d
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Principal Software Engineer
Costa Mesa, California, United States
$165k-$283k/yr RemoteFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
10+ YOE10+ years of software development experience; distributed systems and real-time applications expertise; technical strategy and architecture leadership; backend language proficiency; system design, optimization, and fault-tolerance skills.
Python, Go, TypeScript, PyTorch, Hugging Face, ONNX Runtime, LangChain, AWS, Kubernetes, Redis, PostgreSQL, Amazon S3, Terraform, GitHub Actions, Datadog, Grafana, Prometheus
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1w
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Senior Application Developer - Risk Technology
Newport Beach or Charlotte
$125k-$153k/yr OnsiteFull Time
Pacific Life
Pacific Life: Provides life insurance, annuities, and investment products for financial security.
5+ YOE5+ years of Archer experience, including versions 6+, core solutions, on-demand applications, SaaS implementations, configuration, integrations, testing, troubleshooting, and production support.
Archer, Everbridge, Business Continuity in the Cloud, Optro, Archer GRC, Microsoft AI
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2w
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Senior Software Engineer, Enterprise Applications
Long Beach, California, United States
$135k-$267k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
6+ YOEBachelor’s degree or equivalent experience, 6+ years of software development, and experience building, shipping, and supporting complex data-intensive full-stack applications.
React, Vue, GraphQL, Node.js, OAuth, Terraform, FastAPI, PostgreSQL, MySQL, SQL Server
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22h
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Principal Software Developer
Santa Ana, California, United States
$170k-$180k/yr HybridFull Time
HomeXpress Mortgage
HomeXpress Mortgage: Provides non-qualified mortgage and residential lending services.
7+ YOERequires 7+ years of software development, 5+ years with C#/.NET and PHP, enterprise applications and APIs, Agile/Scrum, DevOps, CI/CD, troubleshooting, and a relevant bachelor's degree.
C#, .NET, PHP, Azure, DevOps, CI/CD, Agile, Scrum, SOA, Microsoft
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2mo
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Senior Application Security Engineer
Los Angeles or New York or San Francisco
$165k-$190k/yr HybridFull Time
Tatari
Tatari: A platform for buying and measuring TV advertising campaigns.
Production Python experience, strong hands-on application security (SAST/DAST/SCA), threat modeling, CI/CD automation, container/AWS/Kubernetes security, API security, and LLM risk mitigation.
Python, Java, Rust, AWS, Kubernetes, CI/CD, SAST, DAST, SCA, OWASP Top 10, API Security Top 10, ASVS, SPVS, AISVS, LLM
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