56 backend development jobs at 30 companies in Temecula, CA

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Backend Engineer, Flag Delivery
Oakland or San Francisco or New York City or Boston or Seattle or Irvine or Los Angeles or Monterey or Santa Barbara or Santa Rosa or Austin or Portland or Philadelphia or Chicago or United States
$146k-$235k/yr OnsiteFull Time
LaunchDarkly
LaunchDarkly: Provides a feature management platform for software development teams.
5+ YOE5+ years backend engineering experience building/operating production distributed systems; strong programming in Go/Java/Rust; production debugging, observability, on-call experience; clear AI usage in engineering work.
Go, Java, Rust
4w
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Sr. Backend Engineer, Digital Engineering
Carlsbad, California, United States
$148k-$180k/yr RemoteFull Time
Vuori
Vuori: Designs and sells performance athletic and lifestyle apparel.
5+ YOEBachelor's degree preferred,5+ years backend experience,expertise in TypeScript/Node.js or comparable language,REST/GraphQL,serverless,PostgreSQL,testing,CI/CD,observability and strong communication.
TypeScript, Node.js, JavaScript, Python, REST, GraphQL, Azure Functions, AWS Lambda, PostgreSQL, Jest, JWT, OAuth, GitHub, Bitbucket, YAML, New Relic, Sentry, Azure Application Insights, React, NestJS, Next.js, Express, Fastify, Shopify APIs, Azure Bicep, Amazon CDK, Terraform, Azure Service Bus, Amazon Data Firehose
2mo
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Sr Staff Engineer Backend
Los Angeles or Santa Clara or Tustin or Dallas
$99k-$185k/yr OnsiteFull Time
Lendistry
Lendistry: Technology-enabled lender providing capital to small businesses.
7+ YOE7+ years backend, distributed systems, microservices; technical leadership; collaboration across product, data, and compliance; AI-assisted development familiarity.
Java, Kotlin, Scala, Go, C#, TypeScript, REST, gRPC, OAuth2, JWT, AWS, CI/CD, AI tools, Copilot
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Senior Software Engineer, Back-End (Power Packs)
Santa Ana or California or New Jersey or Texas or Florida or Japan or Shanghai or Hong Kong or Canada or Mexico or Germany or France
$141k-$229k/yr HybridFull Time
Collectors
Collectors: Providing authentication and grading services for high-value collectibles.
5+ YOE5+ years building backend/data-intensive systems; 4+ years with Java and Spring Boot; strong database and data modeling skills (PostgreSQL, DynamoDB); AWS, serverless, containerization, and API design experience; strong communication.
Java, Spring Boot, PostgreSQL, DynamoDB, AWS, AWS Lambda, Docker, Kubernetes, ECS, Apache Kafka, Python, pytest, unittest, Node.js, TypeScript, Claude, Twitch
2mo
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Software Development Engineer II- Back End
Redlands or St. Louis or Vienna
$97k-$162k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years backend engineering experience; professional experience with Python, Node.js/JavaScript, and Java; experience with ArcGIS Enterprise, containerization (Docker/Kubernetes), API design, and Top Secret/SCI clearance required; Bachelor's in STEM.
Python, Node.js, Java, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server
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Software Engineer III - Backend
Irvine, California, United States
$125k-$140k/yr OnsiteFull Time
Fluxergy
Fluxergy: Portable diagnostic platform for rapid point-of-care laboratory testing
5+ YOE5+ years backend engineering; strong API, databases, and CI/CD; Python/JavaScript/TypeScript; healthcare/regulatory exposure a plus.
Python, JavaScript, TypeScript, React, REST, CI/CD, Linux
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Java Developer (CCDI Operations / Backend) (Mid-Level) - Bilingual in Korean/English
Irvine, California, United States
$100k/yr OnsiteFull Time, Contract
SBT Global
SBT Global: Provides integrated IT consulting and global logistics management services.
Mid-level Java/Python backend developer with CI/CD and Kubernetes experience, database integration (PG, Oracle, MongoDB, Redis), Kafka streaming, production support/on-call experience, and strong English (and Korean) communication.
Kubernetes, CI/CD, MSA, Java, Python, PG, Oracle, MongoDB, Redis, Kafka, Informatica, MQTT, EAI
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Enterprise Automation & AI Developer
Newport Beach, California, United States
$150k-$185k/yr RemoteFull Time
Exante360
Exante360: A technology design and consulting firm that provides ICT and low-voltage systems design and software solutions.
5+ YOE5+ years software development, bachelor\u0002s in engineering/computer science or equivalent, full-stack development (backend and frontend), QA automation experience, experience with APIs, databases, deployments, and use of AI coding tools.
Python, Node.js, TypeScript, C#, Java, React, Next.js, Vue, Angular, Playwright, Cypress, Selenium, Jest, PyTest, Postman/Newman, Revit, Autodesk Construction Cloud, BIM 360, Git
2mo
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Software Engineer
United States or Irvine
$110k-$130k/yr RemoteFull Time
Stretto
Stretto: Software and advisory services for bankruptcy and restructuring professionals.
5+ YOE5+ years software development; Bachelor's degree in software engineering or computer science; strong backend and frontend skills; AWS experience; SQL and CI/CD knowledge.
Java, Spring, JSF, Hibernate, Spring JPA, Node.js, ReactJS, Angular, CSS, HTML, AWS, EC2, ECS, AWS Lambda, S3, SQS, SQL, Python
3w
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LoopNet - Senior Software Engineer
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
7+ YOE7+ years production C#/.NET development, bachelor's degree, experience building APIs/backends, testing, cloud (AWS) experience, mentoring, and familiarity with AI coding tools.
C#, .NET, .NET Core, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, AWS S3, SQS, DynamoDB, ElastiCache, Apache Kafka, Datadog, Docker, Kubernetes, CI/CD, BigQuery, Databricks, Snowflake, Python
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Dev Infra Software Engineer, Air Defense
Irvine, California, United States
OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Experience building backend software and developer tooling; ownership of services, pipelines, and infrastructure; familiarity with cloud, CI/CD, and infrastructure-as-code; U.S. Person eligible for Top Secret clearance.
Lattice OS, Go, Python, Rust, C++, Java, JavaScript/TypeScript, version control, CI/CD, AWS, Azure, NixOS, Terraform, Syft, Grype, Trivy, containers, SBOM tooling, vulnerability scanning
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Senior Software Engineer - Supply Core (Fullstack)
Aliso Viejo or San Francisco
$200k-$250k/yr HybridFull Time
StubHub
StubHubNYSE: STUB: Online marketplace for buying and selling live event tickets.
5+ YOE5+ years software development experience, 2+ years with React, experience with Java or C#, expertise across backend/frontend systems, mentoring experience, strong communication and product judgment.
React, Java, C#
2mo
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Principal Engineer - FullStack – Catalog
Irvine, California, United States
$130k-$135k/yr OnsiteFull Time
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
12+ YOEBachelor's degree required; 12+ years software engineering with principal-level leadership, expertise in backend languages and modern frontend frameworks, high-scale distributed systems, and AI-assisted development.
C#/.NET, Go, Java, Python, React, Copilot, Claude Code, Cursor
1mo
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AI Architect
Irvine or Los Angeles
$80/hr HybridContract
Appex Innovation
Appex Innovation: Provides AI-driven software solutions for healthcare revenue and management.
8+ YOE8+ years in AI/ML, data science, or software engineering; strong Python backend development; hands-on LLM and generative AI, agent-based systems, RAG/vector DBs, API development; AWS, CI/CD, observability, and production ML deployment experience.
Python, AWS, CI/CD, API, LLM, RAG
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Senior Software Engineer - Orchestration & Job Execution
United States or Irvine
$119k-$153k/yr RemoteFull Time
Alteryx
Alteryx: Provides an automated data analytics and data science platform.
4+ YOE4+ years professional backend development with ownership of production services; strong experience with distributed, asynchronous systems; proficiency in TypeScript/Node.js or Go/Java/Rust; production practices, observability, and API design.
TypeScript, Node.js, Go, Java, Rust, Python, C++, Kubernetes, Docker, gRPC, OpenSSL, WiX, NumPy, CPython, Git, React, JavaScript, JSON, GCP, Azure, AWS, GitOps, CI/CD, REST
1mo
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Front End Senior Full Stack Developer- Mortgage Automation (AI-First)
Irvine or United States
$135k/yr RemoteFull Time
Success Lending
Success Lending: Modern, agent-aligned mortgage lending services for homebuyers.
5+ YOE5+ years full-stack development, daily use of AI coding tools, cloud experience (AWS/Azure), RESTful API integration, modern front-end frameworks and backend languages; mortgage technology experience preferred; must be authorized to work in the U.S.
JavaScript, TypeScript, React, Angular, Node.js, Python, Java, C#/.NET, SQL, RESTful APIs, AWS, Azure, Lambda/Functions, CI/CD, Claude Code, GitHub Copilot, Cursor, Blue Sage, Kwikie, Gateless, Cotality, Encompass, MeridianLink, DU/LP, Optimal Blue
3w
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LoopNet - Senior Software Engineer
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree,7+ years production C#/.NET development,AWS experience,unit and automated testing,API/backend design,mentoring experience,experience with AI coding tools (Claude Code or GitHub Copilot).
C#, .NET, .NET Core, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, AWS, S3, SQS, DynamoDB, ElastiCache, Apache Kafka, Datadog, Docker, Kubernetes, CI/CD, BigQuery, Databricks, Snowflake, Python
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Sr. Software Engineer, Full-Stack (Factory Systems)
Palo Alto or Irvine or Normal
$147k-$184k/yr OnsiteFull Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: A joint venture developing software, connectivity, and cloud solutions for electric vehicles.
7+ YOE7+ years full-stack development; frontend with React and TypeScript; backend experience in Golang/Node.js/Python; RESTful API design; SQL/NoSQL; cloud (AWS/Azure/GCP); stream processing and message queues (Kafka, NATS, RabbitMQ); Agile experience.
React, TypeScript, HTML, CSS, Redux, Vuex, Jest, Cypress, Golang, Node.js, Python, SQL, NoSQL, AWS, Azure, GCP, Kafka, NATS, RabbitMQ, OPC UA, EthernetIP, Modbus, MQTT, Scrum, Kanban
1w
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Senior Software Engineer - AI, CoCounsel International
Eagan or Frisco or New York City or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$110k-$204k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
4+ YOE4+ years backend engineering experience with Python, FastAPI, PostgreSQL, AWS; production agentic AI and LLM integration experience; strong debugging, architecture, and collaboration skills.
Python, FastAPI, PostgreSQL, AWS, OpenAI, Anthropic
3w
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Full Stack Engineer
Irvine, California, United States
$45-$200/yr OnsiteFull Time
Remilia
Remilia: Multidisciplinary art collective creating digital assets and lifestyle products.
Strong React and Golang or Node.js, experience with Postgres/SQLite, API design, backend architecture, portfolio of shipped apps; Swift/Kotlin and DevOps/CI/CD are a plus.
React, Golang, Node.js, Postgres, SQLite, Swift, Kotlin, CI/CD