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207 senior backend developer jobs at 113 companies in Westminster, CA

1mo
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Senior Backend Engineer
Germany or London or New York City or Los Angeles
$100k-$170k/yr HybridFull Time
Aurora
Aurora: AI-native travel and lifestyle management for high-performance individuals
5+ YOE5+ years building production backend systems; strong Python and Django experience; SQL, Celery, GCP and Terraform familiarity; experience with LLMs, RAG pipelines, observability, and production operations.
Python, Django, DRF, SQL, Celery, GCP, Terraform, Flutter, Vue, LLMs
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4mo
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Senior Backend Engineer - Growth
Los Angeles, California, United States
$157k-$230k/yr RemoteFull Time
Atticus
Atticus: Platform connecting people to disability benefits and legal aid.
5+ YOE5+ years of production software experience; data and experimentation infra; ability to balance velocity and system health; translate ambiguous requirements; collaborate with PMs; backend-focused with generalist mindset.
Go, GCP, Kubernetes, Terraform, Salesforce
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4w
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Senior Backend Engineer
Los Angeles or New York City or San Francisco
$170k-$200k/yr HybridFull Time
Tatari
Tatari: A platform for buying and measuring TV advertising campaigns.
6+ YOE6+ years software development (Python required), 4+ years building distributed systems and modern data stacks, deep SQL and data modeling, experience with LLMs and agentic coding tools, strong communication and cross-team collaboration.
Python, Cursor, Copilot, Cody, RDS, Databricks, Spark, Redshift, Kafka, Airflow, dbt, SQL, REST, gRPC, GraphQL
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3mo
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Senior Backend Engineer (Rust)
Marina del Rey, California, United States
OnsiteFull Time
Revel
Revel: Modern software platform for controlling complex hardware systems.
7+ YOE7+ years backend/systems engineering experience; proficiency in Rust or strong systems programming background; experience with high-throughput time-series data, data pipelines, and storage/query systems; cloud and streaming experience preferred.
Rust, C++, AWS, GCP, Kafka, Spark, Flink, PostgreSQL, CockroachDB, HBase
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1d
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GoLang Backend Developer
Mason or Woodland Hills
OnsiteContract
Delan Associates
Delan Associates: Provides engineering and professional services to government agencies.
12+ YOEStrong Go (Golang) backend development with microservices, RESTful APIs, Docker/Kubernetes, SQL/NoSQL, cloud platforms, CI/CD, unit testing, distributed systems, messaging, IaC (preferred), and security best practices.
Go (Golang), Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, DynamoDB, AWS, Azure, GCP, Git, CI/CD, Terraform, Helm, Kafka, RabbitMQ
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3mo
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Backend Engineer - PCB CAD Integration
Los Angeles, California, United States
$150k-$160k/yr RemoteFull Time
Quilter
Quilter: Automates printed circuit board layout using physics-driven AI.
3+ YOE3+ years backend software experience; expert Python; strong API design and distributed systems; leadership and collaboration; startup environment adaptability.
Python, Backend frameworks, AWS, Docker, Kubernetes, Terraform, JSON, XML, protobuf
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3d
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Senior Data & Backend Engineer
Culver City, California, United States
$125k-$150k/yr HybridFull Time
Chargie
Chargie: Provides turnkey electric vehicle charging solutions for commercial properties.
5+ YOEBachelor's or equivalent,5+ years data and backend engineering experience,strong SQL,AWS experience,Node.js,GraphQL,Power BI; BI, ETL, data modeling, and production support skills.
SQL, AWS Lambda, Amazon RDS, Amazon S3, Amazon SQS, Amazon API Gateway, Node.js, GraphQL, REST, Power BI, Microsoft Fabric, Zoho, Atlassian, NetSuite, Splunk, Bitbucket, Jenkins, Argo, Claude, Cursor AI, Microsoft Office
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3w
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Staff Backend Engineer
Los Angeles, California, United States
$20k-$230k/yr HybridFull Time
Arena Club
Arena Club: Digital marketplace and vaulting service for sports collectibles
8+ YOE8+ years backend experience; strong Node.js, TypeScript, Postgres; experience scaling marketplaces/eCommerce; AWS, Docker, Terraform; EM tools like GitHub Copilot/Tabnine; excellent communication and architecture skills.
Node.js, TypeScript, Postgres, GitHub Copilot, Tabnine, Claude Code, Cursor, Python, AWS, S3, SQS, GCP, Docker, Terraform, LLM
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1mo
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Senior Developer, Back-End
Los Angeles or Tempe
$143k-$165k/yr HybridFull Time
Fox Corporation
Fox CorporationNasdaq: FOXA: Broadcasts news, sports, and entertainment via television and streaming.
5+ YOE5+ years software development experience; expertise in AWS serverless (Lambda, SQS, RDS, Step Functions), TypeScript; proficiency with CloudWatch/Datadog, CI/CD (GitHub Actions), OpenSearch, and mentoring/junior developer leadership.
AWS Lambda, SQS, RDS, Step Functions, TypeScript, Python, Java, AWS CloudWatch, Datadog, OpenSearch, GitHub Actions, npm, CloudFormation, Terraform, Docker, ECS, EKS
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3mo
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Senior Software Engineer, Backend
Long Beach, California, United States
$159k-$267k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
6+ YOE6+ years backend experience; BA/BS in CS/engineering; strong cloud, API, security, and distributed systems; proficient in Python/Go/Rust/C++
Docker, Kubernetes, Linux, API design, Security
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1w
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Senior Backend Software Engineer
Los Angeles, California, United States
$167k-$230k/yr OnsiteFull Time
Otter
Otter: Software for restaurants to manage and grow online orders.
3+ YOEBachelor's in Computer Science or equivalent, 3+ years software engineering experience, strong backend system design, APIs, microservices, databases, and cloud platform experience.
Java, Go, PostgreSQL, MongoDB, Redis, AWS, Google Cloud, Azure
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1w
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Senior Backend Software Engineer
Los Angeles, California, United States
$167k-$230k/yr OnsiteFull Time
Atoms
Atoms: Building robotics and software to automate physical world industries.
3+ YOEBachelor's in CS or equivalent,3+ years software engineering experience,strong backend design and distributed systems knowledge,experience with Java/Go,databases and cloud platforms.
Java, Go, PostgreSQL, MongoDB, Redis, AWS, Google Cloud, Azure
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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
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3w
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Senior Software Engineer, Backend
Calabasas, California, United States
$120k-$145k/yr OnsiteFull Time
AmaWaterways
AmaWaterways: Provides luxury river cruise vacations on international waterways.
5+ YOEBachelor's degree or 5+ years related experience; 5+ years backend development; strong .NET (C#) and/or Node.js, REST/GraphQL, event-driven architectures, SQL and caching (Redis), cloud (Azure) and CI/CD experience.
.NET (C#), Node.js, GraphQL, Azure Service Bus, Redis, SQL Server, PostgreSQL, Auth0, OIDC/OAuth2, JWT, Git/GitHub, Azure DevOps, GitHub Actions, Microsoft Office Suite, ARM templates, Bicep, Terraform, Dash0, Datadog, New Relic, Salesforce
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1mo
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Staff Backend Engineer, Safety
United States or San Francisco or Los Angeles or New York City or Chicago
$217k-$304k/yr RemoteFull Time
Reddit
RedditNYSE: RDDT: Social platform for community-driven discussion and content sharing.
8+ YOE8+ years software development experience; proficiency in Go, Python, Rust, or Ruby; experience with GraphQL/REST/HTTP/Thrift/gRPC; BS in Computer Science or equivalent practical experience; strong organizational and cross-functional remote collaboration skills.
Go, Python, Rust, Ruby, GraphQL, REST, HTTP, Thrift, gRPC
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1w
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Senior Software Engineer, Backend (Agentic AI)
Marina Del Rey, California, United States
$170k-$220k/yr HybridFull Time
Sift
Sift: Software platform for high-frequency hardware telemetry observability.
8+ YOE8+ years software engineering, backend APIs and distributed systems experience; strong with Go/Python/Rust, Kubernetes, observability, and customer-facing product ownership.
Go, Python, Rust, REST, gRPC, ECharts, PostgreSQL, Protobuf, Radix, React, Redux, TypeScript, Arrow, DataFusion, Flink, Parquet, Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, Terragrunt, Kafka, TimescaleDB
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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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1mo
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Senior Software Engineer (Backend)
Rosemead, California, United States
$109k-$153k/yr HybridFull Time
Panda Restaurant Group
Panda Restaurant Group: Operator of American Chinese fast-casual restaurant chains.
5+ YOEBachelor's in CS or related field, 5+ years building scalable services, proficiency with C#, Java, Python, leadership and mentoring experience, required trainings and food handler card within 30 days.
C#, Java, Python
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2mo
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Senior Backend Engineer (Ruby on Rails/Python) - Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$120k-$217k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
7+ YOE7+ years software engineering; experience with ingestion pipelines, ETL, and content processing; proficient in Ruby, Python, or Go; AWS and distributed workflows; strong DB design; effective communicator.
Ruby, Python, Go, AWS, SQL, NoSQL, ETL, LLM
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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
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