36 senior backend developer jobs at 21 companies in Menifee, CA

1mo
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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
3w
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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
1mo
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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 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
2mo
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Senior Production Engineer
Costa Mesa or Irvine or Washington
$191k-$287k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
4+ YOEProduction-quality Go, distributed systems, Kubernetes, 4+ years in SRE/backend, U.S. person.
Go, Kubernetes, Terraform, gRPC, Consul, ArgoCD
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
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
3w
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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#
1mo
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Senior Software Engineer, Platform
Irvine or Newport Beach or Denver or San Francisco or Seattle
$185k-$200k/yr HybridFull Time
Compa
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years backend software engineering experience; hands-on AWS, Python, Django, and Postgres; strong DevOps/SRE fundamentals (CI/CD, observability, incident response); networking and distributed systems knowledge.
AWS, Python, Django, Postgres, Kubernetes, CI/CD, Infrastructure as Code (IaC), ML Ops
2mo
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Senior Cloud Software Engineer - Database
Irvine, California, United States
OnsiteFull Time
TP-Link
TP-Link: Global manufacturer of networking hardware and smart home devices.
7+ YOEBachelor's degree required, 7+ years in backend/cloud/distributed systems, hands-on experience with distributed databases/storage, proficiency in Ansible and a programming language (Go/Java/C++/Python/Rust), strong Linux and networking knowledge.
Terraform, Ansible, Go, Python, Java, C++, Rust, Kubernetes, Cassandra, Kafka, Redis, MySQL, VictoriaMetrics, Loki, ELK, Linux
1mo
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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
2mo
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Senior Software Engineer
Huntington Beach, California, United States
$145k-$185k/yr OnsiteFull Time
Volund Manufacturing
Volund Manufacturing: Designs and manufactures jet engines for defense and aerospace.
3+ YOE3+ years professional software engineering; full-stack experience across frontend, backend, and infrastructure; experience with Go, React + TypeScript, cloud (Azure), Kubernetes and Terraform; familiarity with Teamcenter/Odoo integrations and security/compliance (ITAR, CMMC, NIST). Must be a U.S. person.
Vorion, Teamcenter, Odoo, React, TypeScript, Go, TanStack Query, RxJS, Redis, Kubernetes, Docker, Terraform, Azure, CI/CD pipelines, ITAR, EAR, CMMC, NIST SP 800-171, DFARS
4w
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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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1620 Supply Chain Technology and Innovation - Senior Software Developer - Automation
Temecula, California, United States
OnsiteFull Time
FFF Enterprises
FFF Enterprises: Specialty pharmaceutical and vaccine distributor for healthcare providers.
5+ YOE5+ years backend and systems integration experience (SAP EWM/WMS and automation) or 7+ years equivalent; strong Go, SQL, Python/C#/Java skills; Linux/Windows, cloud (AWS/Azure/GCP), containerization, CI/CD, SAP integrations, and on-call/site travel experience.
Go (Golang), Python, C#, Java, SQL Server, PostgreSQL, MySQL, HTML, CSS, JavaScript, SAP EWM, SAP EWM/WMS, IDocs, RFCs, PLCs, Allen-Bradley, Siemens, CIP, MQTT, Modbus, RabbitMQ, Kafka, Linux, Ubuntu, Windows, Docker, Kubernetes, AWS, Azure, GCP, Jenkins, GitLab CI, Azure DevOps, Git, CI/CD, Prometheus, Grafana, ELK, EFK, OAuth, SAML, JIRA, Confluence
6d
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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
2w
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Senior Engineer, Full-Stack
Temecula, California, United States
$145k-$160k/yr OnsiteFull Time
FFF Enterprises
FFF Enterprises: Distributes specialty biopharmaceuticals and manages critical healthcare inventory.
7+ YOEBachelor's degree, 7+ years full-stack SaaS experience, proficiency with Azure and cloud-native architectures, backend (.NET), frontend (React/Angular), SQL/data modeling, security and healthcare compliance (PHI,21 CFR Part 11).
Azure, App Services, Functions, AKS, .NET, React, Angular, GraphQL, SQL, FHIR, HL7, CI/CD
3w
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Software Engineer, Short Term Technology
Newport Beach, California, United States
$125k-$240k/yr OnsiteFull Time
PIMCO
PIMCO: Global investment management firm specializing in fixed income strategies.
5+ YOE5+ years Java backend experience (Java 17/21), microservices and REST APIs, AWS/cloud familiarity, TDD and CI/CD practices, strong communication and front-office collaboration skills.
Java 21, Java 17, AWS, Lambda, EKS, RDS, S3, MSK, GitHub Copilot, MCP servers, LLMs
1mo
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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