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124 senior backend developer jobs at 70 companies in Lancaster, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
4w
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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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3mo
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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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2w
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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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2mo
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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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2w
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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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1d
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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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1d
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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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4w
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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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2w
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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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4w
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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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1mo
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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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Software Engineer, Backend, Level 5 – Ads Delivery
Bellevue or Los Angeles
$178k-$313k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Develops social media applications and augmented reality technology.
6+ YOEBachelor's or equivalent; 6+ years post-Bachelor’s software development experience; experience with distributed systems, large-scale backend services, Java/C++/Python, NoSQL, Redis/Memcache, Kubernetes, cloud services, and operating highly-available systems.
Java, C++, Python, NoSQL, Memcache, Redis, Kubernetes, Google services, AWS services, AI tools
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3w
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Staff Back End Engineer, Trading
Chicago or New York City or Los Angeles or San Francisco or Culver City or Dallas
$200k-$285k/yr RemoteFull Time
Altruist
Altruist: Provides a digital custodian and portfolio management platform for advisors.
8+ YOE8+ years software engineering experience, 2+ years building low-latency trading systems, BA/BS preferred, proficient with Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes, strong leadership and communication.
Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes
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1d
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Senior Software Engineer, Backend
Culver City, California, United States
$115k-$140k/yr OnsiteContract
Left Field Labs
Left Field Labs: Creative technology agency building digital products and immersive experiences.
5+ YOE5+ years backend experience with Python, frameworks like Django/Flask, relational and NoSQL databases, CI/CD, cloud and containerization; BS in CS or equivalent.
Python, Django, Flask, PostgreSQL, MySQL, ORM, HTML, CSS, Javascript, Typescript, Git, GitHub Actions, Google Cloud Build, AWS, GCP, Azure, Docker, Kubernetes, Go, pandas, numpy, OpenAI, Vertex AI, Wagtail
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5d
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Senior Software Engineer, Backend FinPlatform
New York City or San Francisco or Salt Lake City or Los Angeles or Seattle or Austin or Washington or Philadelphia or San Diego or Chicago or Atlanta or Australia or Canada or South America
$146k-$215k/yr RemoteFull Time
Flex
Flex: A financial platform allowing renters to split monthly rent payments.
6+ YOE6+ years software engineering experience, 4+ years with Java, experience with backend systems, APIs, data pipelines, AWS, and distributed teams.
Java, Spring, Gradle, JUnit, JVM, AWS, EKS, Aurora RDS, Elasticache, DynamoDB, GitHub Actions, git, DataDog, Snowflake, CDK, Terraform
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2w
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Software Engineer, Backend, Level 5
Santa Monica or Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto
$209k-$313k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
6+ YOE6+ years software development experience; bachelor’s or equivalent; experience with distributed systems, backend services, Java/C++/Python, NoSQL, caching, Kubernetes, and cloud services.
Java, C++, Python, NoSQL, Memcache, Redis, Kubernetes, Google Cloud, AWS, AI tools
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1mo
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Sr. Fullstack Platform Engineer - (Backend Focus)
Los Angeles or California or United States
$140k-$180k/yr RemoteFull Time
Salt AI
Salt AI: Provides an AI orchestration platform for life sciences organizations.
Senior backend/platform engineer with deep Python/Django, APIs, cloud infrastructure, Kubernetes, distributed systems, workflow execution, observability, and fullstack familiarity (TypeScript/React). High product judgment and experience using AI engineering tools.
Python, Django, TypeScript, React, Kubernetes, Claude Code, Cursor, Codex, GitHub
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