Senior JavaScript Developer jobs in Los Angeles, CA

Remote

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Today

AboutUs: BasedinSanFrancisco,California,TuringistheworldsleadingresearchacceleratorforfrontierAIlabsandatrustedpartnerforglobalenterprisesdeployingadvancedAIsystems.Turingsupportscustomersintwoways:first,byacceleratingfrontierresearchwithhigh-qualitydata,advancedtrainingpipelines,plustopAIresearcherswhospecializeinsoftwareengineering,logicalreasoning,STEM,multilinguality,multimodality,andagents;andsecond,byapplyingthatexpertisetohelpenterprisestransformAIfromproofofconceptintoproprietaryintellig

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Contract

200 - 300

Senior Performance Engineer- JMeter, JavaScript - Remote

Remote

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Today

Maximus is currently seeking a Senior Performance Engineer.The Senior Performance Engineer leads performance engineering activities across large-scale healthcare technology programs. This role defines performance test strategies, develops and maintains performance testing frameworks, creates realistic workload models, and evaluates application scalability, reliability, stability, and capacity. The engineer partners with Development, Architecture, DevOps, Cloud Engineering, Database Administratio

Full-time

Depends on Experience

*Senior Full Stack Engineer (Backend focused - Nodejs, Javascript, AWS exp.) - W2 role

Remote

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15d ago

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details Posi

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Contract, Third Party

Depends on Experience

Senior JavaScript Test Automation Engineer

Remote

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Today

We are looking for a Senior Test Automation Engineer with strong experience in JavaScript- or TypeScript-based automation frameworks. The ideal candidate should have hands-on experience building and maintaining automated tests for modern web applications and APIs, with a strong focus on quality, reliability, and maintainability. This role requires solid automation experience, strong testing fundamentals, and the ability to collaborate effectively with development, product, and QA teams. Responsi

Full-time

Senior React & Node Developer

Remote

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7d ago

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than the marketplace that connects you with hand-picked startups in the US and Europe. What we offer: The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.No more hunting for clients or negotiating rates let us handle the business side of things so you can focus on what you do best.We'll manually fi

Contract

75000 - 199000

Senior Full Stack .NET Developer

Remote

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Today

Job Title: Senior Full Stack .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop scalable web applications using .NET and ASP.NET Core. Build responsive frontend applications using React or Angular with TypeScript. Develop REST APIs and backend services using C#. Work with Entity Framework Core, SQL Server, and Azure SQL. Integrate applications with external APIs and enterprise systems. Implement authentication, authorization, logging, caching, and error handling.

Full-time

Senior ReactJS/ UI Developer

Remote

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4d ago

Senior ReactJS/ UI Developer Location: Remote Duration: Long-term Contract Responsibilities and Qualifications: Strong experience (6+ years) in UI development building scalable and high-performance web applications.Strong expertise in HTML5, CSS3, JavaScript (ES6+), jQuery, JSON, and Bootstrap, ReactJS.Strong hands-on experience building reusable UI components, widgets, and dynamic user interfaces.Expertise in ReactJS development including Components, Hooks, Forms, Events, Routing, Redux state

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Contract

50 - 55

Senior Full Stack Java Developer

Remote or San Jose, California

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Today

DatamanUSA has an exciting opportunity for a Senior Full Stack Java Developer to work with one of our direct clients in San Jose, CA. Job Title: Senior Full Stack Java Developer Duration: 12 Months Location: San Jose, CA (Remote) Deliverables: Design, develop, and maintain full stack enterprise applications using Java, Spring Framework, Hibernate, and React. Develop and implement RESTful APIs and microservices for scalable system integrations. Deploy and manage applications on Apache Tomcat a

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Contract, Third Party

USD 55-60

Senior Ruby on Rails Developer

Remote

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11d ago

Role: Senior Ruby on Rails Developer Location: Remote Duration: Longterm Experience: 7+ Years Key Requirements: Strong Ruby on Rails and JavaScript/TypeScript experience REST APIs, distributed systems, and SQL (SQL Server/PostgreSQL) Kafka/Confluent and event-driven architecture preferred Azure/Google Cloud Platform, CI/CD, and automated testing Production monitoring and troubleshooting; Datadog preferred Enterprise application support, modernization, and migration experience Ability

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Contract, Third Party

$65 - $70

Senior Full-stack Developer

Remote

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7d ago

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than the marketplace that connects you with hand-picked startups in the US and Europe. We only accept applications submitted through the link provided at the job listing. Please apply here.What we offer: The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.No more hunting for clients or negotiating

Contract

85000 - 199000

Lead Front End Developer

Remote or Tampa, Florida

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Lead Front End Developer in Tampa, FL. Key Tasks: * Design and develop modern, responsive web applications using JavaScript/TypeScript and frameworks such as Vue.js, React, or Angular * Build scalable, reusable front-end components and modernize existing applications * Troubleshoot complex issues across applications, APIs, databases, and system integrations * Contribute to architecture, technical design, coding standards, and code reviews

Full-time

$125,000 - $140,000 annually

Senior Frontend Engineer

Remote

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Today

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. Role Overview We're looking for a Senior Frontend Engineer to help build and improve core product experiences at ClickUp. You'll wo

Full-time

USD 160,000.00 - 210,000.00 per year

Software Engineer Senior

Remote

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Today

Job ID: 2618148 Location: Remote Work, VA, US Date Posted: 2026-10-19 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: ORA_REMOTE Description SAIC's STG is seeking a talented and motivated Senior Front-End Software Engineer to support the Department of Veterans Affairs (VA). In this role, you will design, develop, and ma

Full-time

USD 80,001.00 - 120,000.00 per year

Web Engineer III

Remote or Austin, Texas

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Today

ABOUT onX We're a team of builders, adventurers, and risk takers using technology to help people confidently explore the outdoors. Driven by our mission to awaken the adventurer inside everyone, we build products that optimize every outdoor experience and inspire confidence to get out and go further. We're a high-growth tech company. The pace is fast, the work takes grit, and ambiguity is part of the job. As the world changes around us, we adapt - continuously evolving how we build, prioritize

Full-time

USD 130,000.00 - 153,000.00 per year

Test Automation Architect (JavaScript / Python)

Remote

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Today

Join our Testing Competency Center as a Test Automation Architect and drive modern automation strategies with a strong focus on JavaScript or Python ecosystems . You will play a key role in shaping scalable automation solutions and integrating AI into the SDLC. Responsibilities Design and implement end-to-end test automation architectures using JavaScript and Python Define automation strategies, including framework selection, tooling, and infrastructure setup Build and scale automation from scra

Full-time

Senior .NET Developer

Torrance, California

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8d ago

IT'S A CONTRACT W2 ROLE, NO C2C/1099 Senior .NET Developer Location - Torrance, CA (Onsite) Contract Duration 15+ Months with possibility of an extension Rate: $69/hr on W2. Required Skills and Expertise: 5+ years of development experience with .NET programming languages, Windows forms, HTML5/CSS3 and SQL Server, Javascript, Angular in an n-tier architectureExperience with .NET core Strong MS SQL Server skills. Experience in SQL Query and Stored ProceduresExperience leading teams across various

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Contract

$65 - $69

Senior JavaScript Developer jobs in Los Angeles, CA, USA