49 senior backend engineer jobs at 29 companies in Lake Elsinore, 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
2w
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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
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
1d
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Software Engineer, Enterprise Applications (Backend)
Garden Grove, California, United States
$160k-$220k/yr OnsiteFull Time
Harbinger
Harbinger: Produces electric chassis platforms for medium-duty commercial transport vehicles.
5+ YOEBachelor's degree in computer science, software engineering, or related field; 5+ years of backend software development; expertise in distributed systems, databases, APIs, cloud infrastructure, and backend programming.
Python, Java, Go, C++, Node.js, PostgreSQL, MySQL, MongoDB, Redis, REST, GraphQL, gRPC, Terraform, Ansible, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
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
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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
6d
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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
2w
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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
2d
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Sr. Data and Platform Engineer
Foothill Ranch, California, United States
$150k-$185k/yr HybridFull Time
Gatekeeper Systems
Gatekeeper Systems: Provides retail loss prevention and intelligent shopping cart solutions.
7+ YOERequires 7+ years of backend data engineering, PostgreSQL and BigQuery expertise, Python, GCP, Terraform, API design, security, multi-tenancy, and daily AI coding tool use.
PostgreSQL, Google Cloud SQL, BigQuery, BI Engine, Python, Google Cloud Platform (GCP), Terraform, GraphQL, REST, Secret Manager, VPC Service Controls, IAM, Cloud Build, GitHub Actions, Claude AI, GoLang, ClickHouse, Apache Pinot, dbt, Dataform, MLOps
1w
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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
1mo
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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
1w
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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
1mo
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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#
3w
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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
2mo
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Senior Software Quality Assurance Engineer - Cloud Services
Irvine, California, United States
$135k-$170k/yr OnsiteFull Time
TP-Link
TP-Link: Global manufacturer of networking hardware and smart home devices.
7+ YOEBachelor's in CS or related, 7+ years in software quality engineering for cloud/backend systems, REST API testing, Docker/Kubernetes, AWS, Kafka/MySQL/MongoDB/Redis familiarity, Python or Java automation experience, performance testing and strong communication.
Docker, Kubernetes, Kafka, MySQL, MongoDB, Redis, AWS, Python, Java, GitHub Copilot, CI/CD
13h
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Technical Lead-Data Engineer
Irvine, California, United States
$130k-$200k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOE2+ MgmtRequires 10+ years in data engineering/backend development, 2+ years leading or mentoring, and expertise in Databricks, dbt, Airflow, Python, SQL, and a cloud platform.
Databricks, dbt, Apache Airflow, PySpark, Delta Live Tables (DLT), Spark SQL, GitHub Actions, Azure DevOps, JIRA, Python, SQL, AWS, Azure, GCP, Delta Lake, Databricks Unity Catalog