57 senior backend engineer jobs at 33 companies in San Clemente, 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
1w
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Sr. Backend Engineer - Xumo
Irvine or Philadelphia
$142k-$189k/yr HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
5+ YOEBachelor's degree preferred; 5+ years building Java backend servers, web service APIs, databases, and Linux systems. Requires microservices, Kubernetes, cloud, and video streaming experience.
Java, REST, SOAP, HTTP, SSL, MySQL, PostgreSQL, Oracle, MongoDB, Linux, CentOS, OSX, Docker, Kubernetes, Google Cloud, AWS, Azure, HLS, JSON, RSS, ETL, RabbitMQ, Kafka, MP4, Mpeg-Dash
1mo
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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
4d
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Lead Back End Developer | Titleist Performance
Oceanside, California, United States
$120k-$152k/yr OnsiteFull Time
Acushnet
AcushnetNYSE: GOLF: Designs and manufactures high-performance golf products and apparel.
8+ YOE8+ years developing backend applications with C# and .NET Core; expertise in Azure microservices, Kubernetes, integrations, secure APIs, DevOps, Agile practices, and technical leadership.
C#, .NET Core, microservices, Azure Kubernetes Service (AKS), Azure Blob Storage, Azure Service Bus, Azure Event Grid, Backend for Frontend (BFF), Entity Framework Core, Microsoft SQL Server, Salesforce Commerce Cloud, Salesforce Service Cloud, OAuth 2.0, OpenID Connect (OIDC), SAFe Agile, Scrum, Bitbucket, Jira, Confluence, Google Cloud Platform (GCP), Google Analytics 4 (GA4), BigQuery, Datadog, Azure DevOps
3mo
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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
3mo
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Staff Software Engineer - Backend
Torrance or Washington D.C.
$161k-$224k/yr OnsiteFull Time
Northwood Space
Northwood Space: Manufacturing ground stations and providing satellite communication infrastructure.
7+ YOE7+ years software development; 3+ years cloud services; distributed scheduling systems; cloud proficiency (AWS/Azure/GCP).
Kubernetes, Cloud platforms, APIs, CI/CD, Databases, Message queues
2w
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Senior Software Engineer I
Long Beach, California, United States
$132k-$160k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
5+ YOE5+ years software engineering experience, expertise in Python, backend architecture, CI/CD, containerization, Git, Kubernetes, REST APIs; US citizenship required.
Python, Git, Kubernetes, CI/CD, Jira, Redmine, Pandas, Numpy
2w
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Senior Software Engineer I
Long Beach, California, United States
$132k-$160k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: Designs and builds launch vehicles and satellite systems.
5+ YOEDegree or diploma (or equivalent experience),5+ years software engineering experience,expertise in Python,backend architecture,CI/CD,containerization,Kubernetes,GIT,REST APIs;US citizenship required.
Python, CI/CD, Kubernetes, Git, REST APIs, Jira, Redmine, Pandas, Numpy, SQL
1mo
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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
1d
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Senior Software Engineer
Costa Mesa, California, United States
$138k-$236k/yr HybridFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
6+ YOERequires 6+ years of professional software development experience, distributed-systems scaling, backend programming, systems architecture, observability, deployment practices, and cross-functional technical leadership.
Python, Go, TypeScript, PyTorch, HuggingFace, ONNX Runtime, LangChain, AWS, Kubernetes, Redis, Postgres, S3, Terraform, GitHub Actions, Datadog, Grafana, Prometheus
1w
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Senior Software Engineer
Santa Ana, California, United States
$129k-$172k/yr RemoteFull Time
First American
First AmericanNYSE: FAF: Provides title insurance and settlement services for real estate.
5+ YOERequires 5+ years building production software, LLM feature deployment, agentic systems, backend services and APIs, cloud-native infrastructure, distributed systems, evaluation frameworks, and mentoring experience.
Cursor, Claude Code, GitHub Copilot
4d
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LoopNet - Senior Software Engineer
Irvine or Orange County
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor’s degree and 7+ years of C#/.NET production development required. Experience with scalable backend systems, APIs, testing, architecture, mentoring, and AWS preferred.
C#, .NET, .NET Core, AWS, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, Amazon S3, Amazon SQS, Amazon DynamoDB, Amazon ElastiCache, Apache Kafka, Datadog, microservices, distributed systems, Docker, Kubernetes, CI/CD, DevOps, Infrastructure as Code, Git, BigQuery, Databricks, Snowflake, Python
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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
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
5d
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Senior Application Developer, Business Systems
Irvine, California, United States
$108k-$153k/yr OnsiteFull Time
Edwards Lifesciences
Edwards LifesciencesNYSE: EW: Designs and manufactures medical devices for structural heart disease.
5+ YOEBachelor's degree or equivalent experience, 5+ years of hands-on full-stack development, significant Salesforce expertise, modern front-end framework, backend services, APIs, integrations, and developer mentoring.
React, Angular, Salesforce, Apex, Lightning Web Components, MuleSoft, AWS, Microsoft Azure, DevOps, CI/CD, CSV, 21 CFR Part 11, GxP
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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#
2w
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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