Back-End Developer Jobs in California

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Senior Software Engineer - UberEats Order Platform

Uber Corporate

San Francisco, California, USA

Full-time

About the Role You will be joining the UberEats Order Platform Team. This team supports mainly 3 tracks - Keeping standards for existing platforms to run the business, supporting core products that need changes at the platform level, and writing the Next-Gen order platform that could spawn new delivery verticals quickly, is maintainable, and scalable. What You'll Do As a Backend Engineer in the Order Platform Team at Uber and being part of Grocery/Consumer Fulfillment org, you'll be working o

Senior Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Senior Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Senior Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:

Lead Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Lead Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Lead Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role: In t

Senior Backend Software Engineer, Shop Ads

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A112349 Apply to this job Share this listing: Responsibilities The eCommerce industry has seen tremendous growth in recent years and has become a hotly contested space amongst leading Internet companies. TikTok Shop re-imagines global eCommerce with rich content and endless joy. The mission of Shop Ads team is to empower commerce merchants of all sizes to grow their business efficiently within TikTok's closed-loop ecosystems. Shop A

Lead Software Engineer

PMAA Inc

San Diego, California, USA

Full-time

PMAA Inc is currently seeking a Direct Hire Sr C++ Developer/Programmer for a large client in San Diego, CA with proven experience in LINUX, Embedded programming, and C++ for backend Development. MUST HAVES Very technically sound as a Sr. C++ Developer/Programmer Sr. Developer who has had some leadership or managerial responsibilities C++ for Back-End Dev LINUX SDR - Software Defined Radios - HUGE PLUS Device Drivers -Developed drivers for instruments - HUGE PLUS Would like to have Embedded pro

Backend Software Engineer - Global E-Commerce Logistics

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : X7502 Apply to this job Share this listing: Responsibilities Team Introduction: The e-commerce industry has seen tremendous growth in recent years and has become a hotly contested space amongst leading Internet companies, and its future growth cannot be underestimated. With millions of loyal users globally, we believe TikTok is an ideal platform to deliver a brand new and better e-commerce experience to our users. We aim to bring di

Senior Cloud Developer (AWS)- Remote (Future Opportunity)

ICF

Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the US* * This role is part of our talent pipeline, and while there may not be an immediate opening, we are proactively connecting with qualified candidates for future opportunities* We're seeking a talented Cloud backend developer to join our dynamic team. As a key member of our engineering department, you'll play a pivotal role in designing, developing, and maintaining robust backend applications and services. Responsibilities: Des

Senior Mobile Engineer

IDR, Inc.

Remote

Contract

IDR is seeking a Senior Mobile App Engineer to join one of the fastest growing healthtech startups in the country,remotely. This is a unique opportunity to work with a mission-driven team using cutting-edge technology to transform preventive healthcare at scale. If you're passionate about innovation, health optimization, and building high-impact mobile experiences, please apply today! Position Overview: Lead and contribute to the design, development, and deployment of cutting-edge mobile appli

Senior JavaScript Developer

Randstad - Torc

Remote

Contract

We are looking for a Senior JavaScript Developer to join our dynamic team. As a key contributor, you will be responsible for designing, developing, and maintaining scalable and high-performance web applications. You will work with modern frameworks, APIs, and cloud-based services to deliver top-tier software solutions. ResponsibilitiesDesign, develop, and optimize web applications using JavaScript, TypeScript, and modern frameworks (React, Angular, Vue.js).Build and maintain scalable, reusable,

Backend Software Engineer, TikTok - Social User and Relation

TikTok

Los Angeles, California, USA

Full-time

Location : Los Angeles Employment Type : Regular Job Code : A210319 Apply to this job Share this listing: Responsibilities TikTok Social team drives significant user engagement and retention wins through fun, innovative, and technically sophisticated products and features. We move fast, with precision, and consistently execute with privacy at the forefront. Some core features and components we build and maintain include User Profile, Story, Inbox, Messaging, Follow, Like, Comment, Tag, et

Senior Backend Software Engineer, Loki Platform

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A05150 Apply to this job Share this listing: Responsibilities The Creation team is an international R&D group tasked with building creative capabilities for TikTok. We're dedicated to productizing AI and multimedia technologies to create world-class creation experiences for TikTok users. Our tech stack includes front-end, back-end, mobile, and desktop development, as well as multimedia technologies like audio/video processing and AR

Senior Backend Engineer / Python / AWS / Scaling out

Motion Recruitment Partners, LLC

Los Angeles, California, USA

Full-time

A fast growing logistics company is seeking a Senior Python Engineer to build and scale its next-generation learning platform. This role is ideal for engineers with a strong start-up background, who thrive in fast-paced environments and are passionate about scalable software architecture, backend development, and education technology. The ideal candidate has 10+ years of experience in software development, with deep expertise in Python and modern cloud-based infrastructures. Required Skills & E

Backend .Net Developer

CSI Companies

Costa Mesa, California, USA

Contract

Backend .Net Developer - Costa Mesa, CA - Hybrid CSI Companies is hiring a highly qualified Backend .Net Developer for a comprehensive global provider of cloud-based Human Capital Management solutions and Business Process Outsourcing (BPO) services, analytics and compliance located in Costa Mesa, CA. As a Fullstack .net developer you'll bring your 3+ years of experience developing and maintaining applications built using the .NET framework. They must have a deep understanding of the front-end a

Principal Software Engineer (Cortex Backend Engineering)

PaloAlto Networks

Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of

Sr. Software Backend Engineer, Manufacturing Quality

Tesla Motors

Fremont, California, USA

Full-time

The Manufacturing Quality Data Engineering team is a high-impact, high-priority, and high-visibility team that is laser-focused on addressing safety-critical issues and expanding critical services to Gigafactories worldwide. As part of Tesla's Vehicle Engineering organization, you will have access to a vast array of data sources across design, manufacturing, and vehicle data, empowering you to design, develop, and deploy innovative data services, automation, and machine learning tools into produ

Principal Engineer Software (Cortex Platform)

PaloAlto Networks

Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of

Backend JAVA Engineer (REMOTE- EST Timezone)(No C2C/H1B)

NetSource, Inc.

Remote

Contract

No C2C/H1B Java backend development experience is a must; all others will be rejected. Network programming techniques (SMP, TCP/IP, Sockets) is a must. Please note that this is a 6-month contract position with possibility to extend. A coding exercise to validate technical skills will be on the 1st interview with client.Remote Work Considerations: While we prefer candidates to work onsite, we are open to remote candidates as long as they can commit to core working hours in US Eastern Time.Locati

Recommendation Platform Backend Engineer(ByteRec Recommendation Infrastructure Graduate -TikTok) - 2025 Start (BS/MS)

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A12855 Apply to this job Share this listing: Responsibilities The recommendation architecture mid-platform team is responsible for the design and development of the recommendation system platform for TikTok and related products, and the team maintains the platform and develops midwares for the system, keeps it consistent. We are looking for talented individuals to join our team in 2025. As a graduate, you will get unparalleled oppor

Staff Backend Software Engineer

General Motors

Mountain View, California, USA

Full-time

Job Description Hybrid: This means the successful candidate is expected to report to their primary location (Austin, TX, Roswell, GA, or Mountain View, CA) three times per week, at minimum. The Role: In this Staff Backend Software Engineer role, you will lead the development of high-performance backend services and systems for GM Commercial Services' innovative software solutions. This position offers a unique opportunity to work across all GM Commercial Services software products, influencing

Backend Staff Software Engineer, On Trip

Airbnb

San Francisco, California, USA

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: Airbnb's On Trip and Wishlist teams are responsible for providing Guests a seamless journey from trip plann