Backend Developer Jobs in California

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101 - 120 of 249 Jobs

React Developer

PlumGravity

•

Irvine, California, USA

Contract

Job Title: React Developer Job Description:We are looking for a skilled React Developer to build and maintain modern, responsive web applications. You ll work closely with designers and backend developers to implement UI components, ensure performance, and deliver a seamless user experience. Requirements: Strong proficiency in React.js and JavaScript Experience with HTML, CSS, and REST APIs Familiarity with state management (e.g., Redux or Context API) Understanding of responsive and adaptive de
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Posted 25 days ago

Backend Engineer / Rust

Jobot

•

San Francisco, California, USA

Full-time

Hybrid Remote *Candidates must be commutable distance from San Francisco* / Leading Developer Platform for Zero-Knowledge Applications This Jobot Job is hosted by: Caitlyn Hardy Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $150,000 - $250,000 per year A bit about us: We are a leading developer platform for zero-knowledge applications. We are on the lookout for a passionate and skilled Backend Engineer with a strong command over Rust to j
Posted 3 days ago | Updated 7 hours ago

iOS Engineer

INSPYR Solutions

•

Cupertino, California, USA

Contract

iOS EngineerABOUT THIS FEATURED OPPORTUNITYThe iOS Engineer will join the team and assist with the undertaking an exciting transformation of a very large e-learning application, akin to a learning management system or learning experience platform. The current app is being completely re-imagined and redesigned from the ground up to offer a superior learning experience.THE OPPORTUNITY FOR YOUYou will architect and design system solutions to meet both functional and technical requirements. You will
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Posted 25 days ago | Updated 5 hours ago

Sr. Software engineer

West Coast Consulting LLC

•

Remote

Contract

Job Description Remote interview - 3 rounds (2 technical 1 behavioral) DOMAIN - Fintech platform - Development of an admin portal - setting up a platform for detecting anomalies, tooling and triage of money transfers MUST Lead Backend dev with 6 years enterprise with 1+ of fintech platforms Golang Docker or Kubernetes AWS must Elasticsearch or similar MongoDB or similar Nice to have Fintech or financial platforms (will be more familiar with security) IAM, LDAP Mass remediation tools developmen
Posted 7 hours ago

UI React Developer - Palo alto CA Only Local (InPerson Interview)

ProCorp Systems Inc.

•

Palo Alto, California, USA

Contract, Third Party

Job Title: UI React DeveloperLocation: Palo Alto, CA (On-site/Hybrid)Job Type: Full-time / Contract Job Description:We are seeking a skilled UI React Developer to join our team in Palo Alto. The ideal candidate will have strong experience in building dynamic, responsive web applications using React.js. You will work closely with UX/UI designers and backend developers to deliver high-quality, user-centric interfaces. Key Responsibilities: Develop and maintain scalable front-end applications using
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Posted 19 days ago | Updated 6 days ago

Software Engineering Technical Leader, SaaS Backend Development - Nexus HyperFabric

Cisco Systems, Inc.

•

Milpitas, California, USA

Full-time

The application window has been extended and will close on April 26, 2025. Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This is a hybrid role working on-site a minimum of 3 days a week in the Milpitas, CA office. Meet the Team The SaaS Engineering organization within the Cisco Networking Group is committed to revolutionizing the deployment of generative AI applications. Our mission is to improve IT visibility and deliver
Posted 60+ days ago | Updated 10 hours ago

Expert Backend Engineer

2K

•

San Mateo, California, USA

Full-time

WE ARE GAMEMAKERS Who We Are: We are a diverse team of developers driven by a passion for our art, united by our core values and inspired by a culture of inclusivity to build amazing games that thrill players everywhere. We pursue growth and innovation in an environment of safety and trust. Our culture is built on the belief that the more varied voices in our collective will strengthen our team and our games. We are looking for our next teammate who will raise our bar and make us better. We a
Posted 3 days ago | Updated 10 hours ago

Senior Backend Engineer

Motion Recruitment Partners, LLC

•

San Francisco, California, USA

Full-time

My client is a San Francisco-based software company specializing in secure AI-driven account access and control. They provide APIs and SDKs that enable developers to manage, track, and automate user-permissioned integrations across various platforms and authentication methods. They have recent funding and aim to make the internet more interoperable by allowing AI to act securely on behalf of users. It is quite the product! They are looking to hire a Senior Backend Engineer with Java Or Node. The
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Posted 48 days ago | Updated 6 hours ago

Angular Developer

intiGrow

•

Remote

Full-time

100% Remote <>Job Summary:We are looking for an experienced Angular Developer to build and maintain dynamic web applications. The ideal candidate should have strong expertise in front-end development using Angular, along with experience in integrating APIs and optimizing UI/UX. <>Responsibilities:Develop, test, and maintain web applications using Angular (Angular 8+ preferred).Build responsive and user-friendly UI components.Integrate RESTful APIs and third-party services.Optimize application p
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Posted 28 days ago

Web Developer (Javascript/ Reactjs)

Aptino

•

Mountain View, California, USA

Contract

Key Responsibilities:Develop and maintain responsive, user-friendly front-end components using React.js. Ensure cross-browser compatibility and consistent user experience across modern browsers. Write clean, well-structured, and maintainable HTML5, CSS3, and JavaScript code. Work closely with UX/UI designers and back-end developers to implement interactive features. Optimize front-end performance for speed and scalability. Debug and resolve UI/UX issues and browser inconsistencies. Stay updated
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Posted 1 day ago | Updated 1 day ago

Principal Backend Engineer

3M Company

•

Remote or Maplewood, Minnesota, USA

Full-time

Job Description: Principal Backend Software Engineer Collaborate with Innovative 3Mers Around the World Choosing where to start and grow your career has a major impact on your professional and personal life, so it's equally important you know that the company that you choose to work at, and its leaders, will support and guide you. With a wide variety of people, global locations, technologies and products, 3M is a place where you can collaborate with other curious, creative 3Mers. This positi
Posted 20 days ago | Updated 10 hours ago

senior backend engineer

When I.T. Matters LLC

•

Remote

Full-time

Please Only apply if this is a solid fit. NO 3rd parties- Client does NOT sponsor Senior Backend Engineer What You ll Do: Design, build, and optimize backend systems that power real-time and batch video rendering pipelines.Lead API development (GraphQL and REST) and integrate with tools like OpenAI, stock footage providers, and CRM platforms.Develop features for a new paid API product enabling large-scale CRM integration.Tackle AI-enhanced video editing workflows and drive quality improvements.
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Posted 21 days ago | Updated 7 days ago

Senior Backend Software Engineer

S&P Consultants

•

Remote or Cambridge, Massachusetts, USA

Full-time

Kensho is S&P Global's hub for AI innovation and transformation. With expertise in Machine Learning and data discovery, we develop and deploy novel solutions for S&P Global and its customers worldwide. Our solutions help businesses harness the power of data and Artificial Intelligence to innovate and drive progress. Kensho's solutions and research focus on speech recognition, entity linking, document extraction, automated database linking, text classification, natural language processing, and mo
Posted 23 days ago | Updated 10 hours ago

Backend API Engineer, Node

Motion Recruitment Partners, LLC

•

Los Angeles, California, USA

Full-time

This position is hybrid in West Los Angeles. A fast-growing consumer product startup based in West Los Angeles is looking for a Backend Engineer to join their tight-knit team. They're building technology that connects buyers and sellers in a traditionally offline industry, streamlining transactions through modern APIs and scalable infrastructure. This is a startup. Candidates with current or previous startup experience are strongly preferred. Required Skills & Experience 5+ years of experience
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Posted 7 days ago | Updated 6 hours ago

Java Full Stack Developer

Raas Infotek LLC

•

Remote or Atlanta, Georgia, USA

Contract

Position: Java Full Stack DeveloperContract: W2 Only Responsibilities: 10+ years of experience in Java and Java frameworks (Spring, Spring Boot, Hibernate) with strong hands-on coding ability.Design, develop, and maintain enterprise-level web applications using Java on the back end and frameworks like Angular/React on the front end.Collaborate with UI/UX and back-end developers to deliver integrated and user-friendly features.Implement and maintain RESTful APIs for smooth front-end and back-end
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Posted 16 hours ago

Lead Python Backend Engineer - Danburry,CT - Remote with client visits - Fulltime

Cyber Sphere LLC

•

Remote

Full-time, Third Party

Lead Python Backend Engineer Remote with Occasional Visits to Danbury, CT Interview Mode: In person We re looking for a Lead Backend Engineer to drive backend development, optimize data infrastructure, and support critical integrations across our ecosystem. You ll play a pivotal role in modernizing our backend architecture to ensure scalability, reliability, and efficiency, while leading transformative initiatives such as: Enhancing CRM and subscription management systems to improve customer en
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Posted 7 days ago | Updated 3 days ago

Fullstack Developer (React / Next.js / Node.js)

Optime Tech

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Remote

Contract

Job Title: Full Stack Developer (React / Next.js / Node.js) Location: ["Remote" for candidates who are in MI, IL, IN, OH, WI, KY] Experience Level: 3+ Years Employment Type: [Contract] ** W2 position only ** "No C2C or Corp-to-Corp" About the Role: We are seeking a talented and self-driven Full Stack Developer with a minimum of 3 years of professional experience to join our growing development team. The ideal candidate will have a strong foundation in Next.js, React, Node.js, and GraphQL, along
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Posted 12 days ago

Front-End Web Developer - Remote opportunity!

DHI Group, Inc.

•

Remote

Full-time

Dice.com is assisting our Software Client with their search for a Front-End Web Developer to join our client s growing team developing a wed-based platform to help home builders run their businesses more efficiently. This is a contract-to-hire remote / work from home opportunity! This is an exciting opportunity to help reshape the industry with a simple and intuitive UI that seamlessly integrates scheduling, budgeting, accounting, CRM, and various other processes. The ideal candidate will have
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Posted 12 days ago

Senior Backend Engineer / TypeScript / Southern California

Motion Recruitment Partners, LLC

•

Los Angeles, California, USA

Full-time

We're looking for a Backend Engineer to help build and scale our clients platform. You'll work across the stack-developing APIs, backend services, databases, and web-based UIs-using technologies like TypeScript, Node.js, and modern frameworks. You'll collaborate closely with engineering and product teams to ship high-impact features and drive continuous technical improvements. We value smart, execution-focused developers who see shipping as a core feature and are passionate about building clean,
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Posted 24 days ago | Updated 6 hours ago

Senior Backend Engineer, Python

Launch Potato

•

Remote

Full-time

WHO ARE WE? Launch Potato is a digital media company with a portfolio of brands and technologies. As The Discovery and Conversion Company, Launch Potato is a leading connector of advertisers to customers at all parts of the consumer journey, from awareness to consideration to purchase. The company is headquartered in vibrant downtown Delray Beach, Florida, with a unique international team across over a dozen countries. Launch Potato's success comes from a diverse, energetic culture and high-pe
Posted 7 days ago | Updated 11 hours ago