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238 senior react engineer jobs at 126 companies in Thousand Oaks, CA

2mo
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Senior React Native Engineer
San Francisco or Los Angeles
$160k-$210k/yr OnsiteFull Time
Arena Club
Arena Club: Digital marketplace and vaulting service for sports collectibles
7+ YOEBachelor's in CS/Engineering, 7+ years mobile app development, proficiency in React Native and iOS/Android ecosystems, familiarity with Rx, IoC/DI, Bazel, A/B testing, analytics, CI and automated testing; experience leading mobile launches and using AI tools (Claude, Cursor).
React Native, iOS, Android, Rx, IoC/DI, Bazel, Claude, Cursor, A/B testing, analytics
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1mo
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Sr. React Native Engineer
Santa Monica, California, United States
$175k-$350k/yr RemoteFull Time
Tapcart
Tapcart: Platform for Shopify merchants to create mobile shopping apps.
5+ YOE5+ years engineering/product experience; demonstrated frontend, backend, and database skills; active GitHub presence; experience with React Native and building AI agent orchestration preferred.
React Native, GitHub, Shopify
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3mo
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Senior Security Engineer
Austin or Chicago or Dallas or Denver or Los Angeles or San Diego or San Francisco
$131k-$169k/yr HybridFull Time
Karbon
Karbon: Practice management software for accounting firms.
4+ YOESenior Security Engineer with 4+ years in security or development; strong communication; cloud and AI experience; hands-on with security tooling and threat modelling.
DotnetCSharp, JavaScript, React, EmberJS, Python, Azure, AWS, GCP, PowerShell, Bash, GitHub Copilot, Burp Suite
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2mo
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Senior Software Engineer, Air AI
Mountain View or Los Angeles or San Francisco or New York City
$170k-$230k/yr HybridFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
4+ YOE4+ years software engineering; strong fullstack Python backend and TypeScript/React frontend; Docker and Kubernetes; experience with LLM APIs; production AI features; able to ship quickly.
Python, TypeScript, React, Docker, Kubernetes
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1w
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Senior 3D Engineer
Glendale, California, United States
$160k-$200k/yr OnsiteFull Time
Moon
Moon: Building an AI-powered SaaS platform for business operations.
5+ YOE5+ years front-end/graphics engineering with production Three.js or React Three Fiber; strong 3D fundamentals, profiling and optimization experience, and library/SDK development experience.
React Three Fiber, Three.js
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Senior Mission Operations Engineer - Ground Segment
Long Beach, California, United States
$137k-$230k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
5+ YOEBachelor's in engineering; 5+ years operating complex systems; cross-functional collaboration; strong communication; travel up to 20%.
C++, Golang, Javascript, React, Software Architecture, Databases, Cloud, Matlab, Python
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3mo
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Senior Systems Software Engineer
Los Angeles or Remote- US
$145k-$195k/yr HybridFull Time
Zoo
Zoo: Develops infrastructure and AI-powered tools for hardware design.
Senior systems, platform, or infrastructure engineering with Rust expertise; strong backend/infrastructure focus; experience with distributed systems, databases, APIs, and IaC; autonomous, proactive, and customer-focused.
Rust, Databases, API design, Distributed systems, Infrastructure as code, Containers, React
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1d
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Senior DevOps Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$140k-$240k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
Backend and cloud engineering fundamentals; scalable distributed systems experience; U.S. Person status; ability to obtain and maintain a U.S. security clearance; collaboration across engineering disciplines.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React, CI/CD, containers
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2w
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Senior Software Engineer, Growth (Payment Localization) (Copy)
Los Angeles or San Francisco
$190k-$215k/yr HybridFull Time
Linktree
Linktree: A platform to consolidate and share multiple digital links.
5+ YOE5+ years software engineering experience; strong full-stack skills with TypeScript, Node.js, React, SQL and cloud services; experience with growth experimentation, A/B testing, data analysis, and AI-assisted development.
TypeScript, Node.js, React, PostgreSQL, MySQL, GraphQL, AWS, SQL, Snowflake, BigQuery, Claude, Cursor, Codex, Devin
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2w
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Senior Software Engineer, Full Stack (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 experience; frontend and backend development; experience with React/NextJS and Go/Python/Rust; API design, agentic systems, product ownership; U.S. person required for ITAR compliance.
React, NextJS, Go, Python, Rust, ECharts, gRPC, PostgreSQL, Protobuf, Radix, Redux, TypeScript, Arrow, DataFusion, Flink, Parquet, Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, Terragrunt
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Senior Systems Engineer - Software
El Segundo, California, United States
$165k-$205k/yr OnsiteFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Provides engineering, technology, and cybersecurity services for national security.
7+ YOEActive Top Secret (TS) clearance, 7+ years engineering experience with C++ and Python, 2+ years leadership, Bachelor\u0002s in STEM, systems/software standards knowledge, testing and Agile experience.
C++, Python, Java, C#, C, JavaScript, React, Node.js, DO-178C, IEEE 12207
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2mo
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Senior Software Engineer, Product Foundations
Seattle or Los Angeles
$150k-$200k/yr OnsiteFull Time
Metropolis
Metropolis: Computer vision technology for checkout-free parking and retail payments.
8+ YOE8+ years backend software engineering; expert Java; microservices; Kubernetes; AWS; observability; databases; AI tooling; strong technical communication.
TypeScript, React, Scala, Java, Kubernetes, AWS, Kafka, SQS, MySQL, PostgreSQL, Snowflake, Git, GitHub, Datadog, Copilot, Claude Code, CI/CD
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1w
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Senior Systems Engineer - Software
El Segundo, California, United States
$165k-$205k/yr OnsiteFull Time
Modern Technology Solutions
Modern Technology Solutions: A technology and engineering that provides systems and software solutions for national security and space missions.
7+ YOE7+ years engineering experience with ground/space system components, 7+ years software development using C++ or Python, 2+ years lifecycle leadership, bachelor\u0019s in STEM, active TS clearance required.
C++, Python, Java, C#, C, JavaScript, React, Node.js
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2mo
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Senior Software Engineer - CTV (Burbank, CA, US, 91505)
Burbank, California, United States
$124k-$170k/yr OnsiteFull Time
Paramount
ParamountNASDAQ: PSKY: Produces and distributes media content across global entertainment platforms.
5+ YOE5+ years software development; 2+ years building Smart TV/CTV apps; BS in Computer Science; React and TypeScript; Redux/RTK; web tech on TV runtimes.
React, TypeScript, Redux, RTK, React Router, HTML, CSS
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1mo
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Senior Database Engineer
Point Mugu Nawc, California, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
5+ YOERequires SQL expertise, experience with C# and C++, Visual Basic and Microsoft Access knowledge, bachelor's degree or 5+ years' experience (years may substitute for degree), and active Interim Secret clearance to start.
SQL Server Management Studio (SSMS), Visual Studio, Azure DevOps, SQL, C#, C++, Visual Basic, Microsoft Access, JavaScript, React, HTML, CSS
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1mo
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Senior Software Engineer, WebOTT
San Francisco or Los Angeles or New York City
$186k-$266k/yr HybridFull Time
Tubi
TubiNASDAQ: FOXA: Free ad-supported streaming service for movies and television.
5+ YOE5+ years building high-performance web applications with React, Redux, JavaScript/TypeScript, HTML5/CSS and Web APIs; experience leading initiatives and mentoring engineers; CI/CD and infrastructure familiarity.
React, Redux, Node.js, GitHub Actions, Terraform, CDN, JavaScript, Web APIs, HTML5, CSS, TypeScript
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1mo
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Sr Automation Engineer – New Glenn
Seattle or Denver or Los Angeles or Florida
$182k-$277k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEBachelor's in engineering/computer science or equivalent, 8+ years software/automation/data/engineering experience, experience designing automation tools, familiarity with React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, and AWS.
React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, AWS, Git, SVN, Gitlab CI
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2d
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Senior Software Engineer, Front End
Santa Monica, California, United States
$170k-$200k/yr OnsiteFull Time
Axle Health
Axle Health: AI software for scheduling and managing home-based healthcare operations.
7+ YOE7+ years of software engineering experience, expert React and TypeScript skills, React Native experience, GraphQL client library experience, frontend architecture, performance optimization, code reviews, and technical communication.
React, TypeScript, React Native, GraphQL, Apollo Client, PostgreSQL, AWS, Datadog, Sentry, Git, GitHub, Graphite, Jest, React Testing Library, Claude Code, Cursor, WebSockets, Server-Sent Events, CSS-in-JS
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4d
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Senior Fullstack Engineer
Los Angeles, California, United States
$170k/yr OnsiteFull Time
FlightStory
FlightStory: A media and investment scaling creator-led brands.
Full-stack experience with TypeScript, React, Node.js, Python, JavaScript, cloud infrastructure, databases, APIs, scalable systems, and production AI/ML or LLM applications.
TypeScript, React, Node.js, Python, JavaScript, Google Cloud, SQL, NoSQL, APIs, AI/ML, LLMs
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4w
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Senior Full Stack Engineer
Playa Vista, California, United States
$139k-$201k/yr OnsiteFull Time
Inversion Space
Inversion Space: Building autonomous re-entry vehicles for global space-to-Earth cargo delivery.
5+ YOE5+ years software engineering experience; strong TypeScript/Javascript and React front-end skills; backend experience with Python, Node.js, or Go; Linux and CI/CD familiarity; system design and testing proficiency.
TypeScript, Javascript, React, Python, Node.js, Go, Linux, CI/CD, Docker, Kubernetes
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