Back End Developer Jobs in California

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Sr. Backend Engineer/Solutions Architect

LogiX-Guru

Remote

Contract

Senior Backend Engineer / Solutions Architect (Node.js | Google Cloud Platform | TypeScript | Finance) Location: Remote Type: Full-time | Contract Client Industry: Financial Technology Key Responsibilities - Design and implement fraud prevention systems using Node.js and TypeScript - Develop and enhance device authentication mechanisms - Build payment intercept systems and fraud detection features - Integrate with Google Cloud Platform services (Spanner, BigQuery, Kubernetes) - Collaborate with

Backend Software Engineer, Search - USDS

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A67446B Apply to this job Share this listing: Responsibilities About the Team Our Search Team is responsible for building and owning TikTok's search engine, which provides our users the best search experience. On the TikTok Search Team, you'll have the opportunity to build a full-stack search engine system and combine information retrieval technology with modern machine learning methods from related fields such as NLP, CV, and recom

Software Engineer, Graphics C++

Motion Recruitment Partners, LLC

Los Angeles, California, USA

Full-time

My client is rethinking digital identity by turning avatars into intelligent agents-personalized digital beings that not only look like you, but learn, adapt, and express your personality across games, virtual worlds, and chat environments. They are backed by top-tier investors and embraced by some of the biggest names in entertainment and fashion This team is building a powerful platform that auto-rigs 3D models and wearables into fully functional assets usable across multiple digital ecosystem

Founding Staff Software Engineer

Alldus

Palo Alto, California, USA

Full-time

Job DescriptionWe are a rapidly growing early-stage start-up in Palo Alto building an enterprise AI navigation system that will solve one of the key challenges organizations face today: large enterprises inability to scale, protect, and monitor their use of AI. Our platform does not rely on manual or static configurations, instead we dynamically discover every AI-human interaction, protect sensitive information, and transform scattered use-cases into a cohesive system. We are looking for a Senio

SeniorAngularJava Full Stack Developer

Aventine software

Sunnyvale, California, USA

Contract, Third Party

Hi Folk's,Need local consultant only + 11 years expNeed local consultant only + 11 years expNeed local consultant only + 11 years expTitle: Senior Angular Java Full Stack Developer Location: Sunnyvale CA (Need local candidate only) Job Description: We are seeking a Senior Angular Developer with strong Java Full Stack capabilities to join our dynamic development team. This role emphasizes front-end development using Angular, while also contributing to backend services developed in Java. The idea

Java Backend Dev with Kotlin, GraphQL

Rivago infotech inc

Mountain View, California, USA

Contract

Position : Java Backend Dev with Kotlin, GraphQL Address :- Mountain View, CA United States(3 days onsite) JD: As a Kotlin Engineer at focusing on backend work, your primary role will involve redesigning, enhancing, and optimizing backend systems using Kotlin to improve performance, scalability, and maintainability. Below is a detailed job description for this position: Key Responsibilities: Design, develop and maintain advanced Kotlin applications with emphasis on RESTful web service developme

Principal Engineer Cybersecurity, Cloud Security

URSI Technologies Inc.

Remote

Contract

Job Title: Principal Engineer Cybersecurity, Cloud Security & High-Performance Systems Location: Remote (California) Duration: 12+ Months Role Overview: We are seeking a Principal Engineer with deep expertise in Cybersecurity, Secure Cloud Architectures, and High-Performance Systems. This role focuses on developing next-generation security platforms, real-time threat detection, and secure cloud services using Rust, Scala, and WebAssembly (WASM) on AWS. Key Responsibilities: Develop secure, perf

Senior UI Developer

ST RXR Investments LLC

Remote or Miami Beach, Florida, USA

Full-time, Third Party

Job Title:Senior UI Developer (3+ Years of Experience) Compensation: Up to 300k depending on experience. Location:Miami Beach, FL [Remote is Optional] Company:ST RXR Investments LLC Job Type:Full-time About Us:We are one of the two pioneers of high frequency automated trading, and a dynamic and innovative Hedge Fund focused on building a new cutting-edge high frequency, algorithmic trading platform. Our team is developing a trading interface integrated via API, designed to offer high-performance

Sr. Java/Golang developer

JS Consulting Solutions

California, USA

Full-time, Part-time, Third Party, Contract

Title: Sr. Java/Golang developer Location: Menlo Park, CA - Onsite - local Candidates For Senior Candidates: 10+ years with java and 3+ years with Golang is fine. Need 12 - 15 years of profile. Position Description: We are seeking an experienced Software Engineering leader in our Core Brokerage group, who will lead the technical aspects of designing, implementing, testing of various initiatives. The role expects significant engineering ownership in complex server-side applications, including

Backend Software Engineer - Music Promotion

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A195062 Apply to this job Share this listing: Responsibilities About the Music Team: Our team's mission is to build resonance and inspire expression through music, which includes Music Discovery, Promotion and SoundOn. The team's mission is to inspire music production by servicing creators along the lifecycle of creation, promotion and engagement and to encourage music discovery for consumers. As a Software Engineer on our Backend t

Full Stack Software Engineer

Rivian

Palo Alto, California, USA

Full-time

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it

Senior Backend Engineer (Node.js + TypeScript) - AI meets FinTech

HENRY

Remote

Full-time

** Remote position ** Engineering scrums are at 9am EST Who We AreWe re a highly funded stealth startup that has built an institutional grade licensed exchange for trading illiquid real-world assets from commercial real estate to infrastructure, natural resources, and private credit. We re combining AI, deep regulatory infrastructure, and a modern tech stack to unlock trillions in global illiquid markets. What We re Looking ForWe re looking for a Senior Backend Engineer with strong experience bu

Backend Software Engineer, Test Infrastructure

Postman, Inc.

San Francisco, California, USA

Full-time

Who Are We? Postman is the world's leading API platform, used by more than 40 million developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration-enabling users to create better APIs, faster. The company is headquartered in San Francisco and has an office in Bangalore, where it was founded. Postman is privately held,

Senior Backend Engineer - Dynamic Pricing

Uber Corporate

San Francisco, California, USA

Full-time

About the Role The mission of the Surge team is to maintain overall marketplace reliability by balancing supply/demand in real-time through dynamic pricing. We build scalable real-time systems to understand the state of the market, forecast future demand, make predictions using ML models, solve network optimization programs, and eventually make pricing decisions for each rider session. Surge plays a critical role in service of Uber's mission to make transport accessible. We generate billions o

Senior Software Engineer, Backend - DevX CI

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

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

SAP Fiori Consultant Position - REMOTE

Vailexa Technology LLC

Remote

Contract

Role: SAP Fiori Consultant Location: REMOTE Job Type: Contract Job Overview: An experienced SAP Fiori Consultant (Min 6+ years) with strong understanding of SAP Fiori and SAP UI5 technologies, with hands-on experience in developing and deploying Fiori applications. Qualifications and Skills: SAP Fiori Consultant with a strong understanding of SAP Fiori/UI5, SAP Gateway, and OData services. Experience with SAP S/4HANA, SAP Fiori Launchpad, and custom Fiori application development. Knowledge of AB

Backend Software Engineer/Senior Software Engineer

Salesforce

San Francisco, California, USA

Full-time

To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts. Job Category Software Engineering Job Details About Salesforce We're Salesforce, the Customer Company, inspiring the future of business with AI+ Data +CRM. Leading with our core values, we help companies across every industry blaze new trails and connect with customers in a whole new way. And, we empower you to be a Trailblazer, too - driving you

Senior UI Developer

Spiceorb

Remote

Full-time

Job Title: Senior Ul Engineer - React/ Nodejs / GraphQL / Azure Location: Remote (central / pacific time zone) About the Role: We're looking for a highly skilled and creative Senior Ul Engineer to join our frontend engineering team. In this role, you will build fast, scalable, and engaging web applcations using React, Node-js, Tailwind Css, GraphQL and Redux caching, all deployed and managed in Azure Cloud with code managed via GitHub " You 'll collaborate closely with designers, backend engine

BE Crypto Software Engineer

Russell, Tobin & Associates

Remote

Contract

Job Title: Crypto Software Engineer Location: Remote California Duration: 6 Months plus Pay Range: $58/hr-$65/hr on W2 JOB DESCRIPTION Join the User Economy team in this contractor role, working on an exciting initiative that enables users to earn money through various company products such as Awards, Premium, Collectible Avatars, and more. We're redefining how users engage with and monetize their contributions, shaping the future of the company's creator ecosystem. We are specifically hiring a