40 open backend developer roles in San Francisco, refreshed daily. Build a tailored resume in minutes with Climbr's free AI resume builder.
Open Roles
40
Top Hiring
OpenAI · Mintlify · Kikoff
Lyft · San Francisco, CA
At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Interns work side-by-side with top engineers in the...
Posted 9/17/2026
OpenAI · San Francisco
About the Team The ChatGPT organization at OpenAI supports our mission by bringing advanced AI capabilities to hundreds of millions of users worldwide. The Image Generation team is responsible for one of the fastest-gro...
Posted 9/11/2026
Atoms · San Francisco, CA
Who we are Atoms is building the machines that power the next era of progress. Over the last decade, software has transformed the digital world. But the physical world, where food is made, minerals are mined, goods are m...
Posted 9/10/2026
Mintlify · San Francisco
WHY MINTLIFY? We're on a mission to empower builders. - Massive reach: Our docs platform serves 100 million+ developers every year and powers documentation for 20,000+ companies, including Anthropic, Microsoft, PayPa...
Posted 9/10/2026
Fastly · Denver, CO; San Francisco, CA
Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing...
Posted 9/8/2026
TRM Labs · San Francisco, CA
BUILD A SAFER WORLD. TRM Labs provides AI-powered intelligence solutions that help public and private sector agencies investigate and disrupt crime. TRM's platforms enable investigators to trace illicit activity, build ...
Posted 9/7/2026
Crusoe · San Francisco, CA - US
Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from elect...
Posted 8/31/2026
Notability · San Francisco
Join Notability and shape the future of learning. We’re building the next generation of tools designed not just to capture notes, but to fundamentally improve how people learn, think, and collaborate. Our app bring...
Posted 8/29/2026
Kikoff · San Francisco
Kikoff: The Fintech Powering Financial Security at Scale Kikoff is a profitable, pre-IPO fintech company on a mission to empower everyone to achieve financial security. With record revenue growth in 2025 and a unicorn va...
Posted 8/19/2026
Kikoff · San Francisco
Kikoff: The Fintech Powering Financial Security at Scale Kikoff is a profitable, pre-IPO fintech company on a mission to empower everyone to achieve financial security. With record revenue growth in 2025 and a unicorn va...
Posted 8/19/2026
E2b · San Francisco, California
About E2B E2B is a fast-growing Series A startup with over $37M in funding and 8-figure revenue. We are building the Agent Cloud and power the infrastructure behind AI labs and some of the most widely used consumer and ...
Posted 8/15/2026
Mintlify · San Francisco
WHY MINTLIFY? We're on a mission to empower builders. - Massive reach: Our docs platform serves 100 million+ developers every year and powers documentation for 20,000+ companies, including Anthropic, Microsoft, PayPa...
Posted 8/14/2026
Menlo Ventures · San Francisco, California
About FinchWe are on a mission to revolutionize employment by building the infrastructure that powers every facet of work. To do this, we're looking for individuals who think about problems holistically and in-depth, who...
Posted 8/14/2026
Airtable · San Francisco, CA; New York, NY
Airtable is the no-code app platform that empowers people closest to the work to accelerate their most critical business processes. More than 500,000 organizations, including 80% of the Fortune 100, rely on Airtable to t...
Posted 8/13/2026
Next Gen Software Solutions LLC · San Francisco, California
Job Title: Java Backend Developer with Devops Location: SFO, CA (All 5 days Onsite) Duration: long term Type: Contract W2 Experience: 8 - 12 Years Interview: In-person is must for Client interview Job Descrip...
Posted 8/12/2026
Prenuvo · San Francisco Bay Area, California, United States
About Us At Prenuvo , we are on a mission to flip the paradigm from reactive “sick-care” to proactive health care. Our award-winning whole body scan is fast (under 1 hour), safe (MRI has no ionizing radiation), and non-i...
Posted 8/11/2026
Papa · San Francisco
Papa is a new kind of care built on human connection. Across the country consumers, health plans, and employers look to Papa to provide vital social support by pairing older adults and families with Papa Pals. Trained an...
Posted 8/7/2026
SoFi · CA - San Francisco; WA - Seattle; NY - New York City; TX - Frisco; UT - Cottonwood Heights; MT - Helena; FL - Jacksonville
Employee Applicant Privacy Notice Who we are: Shape a brighter financial future with us. Together with our members, we’re changing the way people think about and interact with personal finance. We’re a next-generation fi...
Posted 7/31/2026
Okta · San Francisco, California
Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. Thi...
Posted 7/31/2026
Postman · San Francisco, California, United States
Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the gl...
Posted 7/29/2026
Mercor · San Francisco
ABOUT MERCOR Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on t...
Posted 7/25/2026
Papa · San Francisco, CA (Hybrid)
Papa is a new kind of care built on human connection. Across the country consumers, health plans, and employers look to Papa to provide vital social support by pairing older adults and families with Papa Pals. Trained an...
Posted 7/24/2026
Chaos Industries · San Francisco, California, United States
CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warf...
Posted 7/17/2026
Chaos Industries · San Francisco, California, United States
CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warf...
Posted 7/17/2026
Career Swift · San Francisco, California
About the role CelebriOS is seeking a Backend Developer to design and maintain the services, APIs and data systems behind its products. You will work with engineering and business stakeholders to deliver secure, scalab...
Posted 7/17/2026
Mercor · San Francisco
ABOUT MERCOR Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on t...
Posted 7/14/2026
Anthropic · San Francisco, CA | New York City, NY | Seattle, WA
About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of co...
Posted 6/29/2026
Airwallex · US - San Francisco
ABOUT AIRWALLEX Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 250,000 businesses world...
Posted 6/17/2026
Perplexity AI · San Francisco
ABOUT THE ROLE The Backend Platform team is the backbone of Perplexity’s product reliability, scalability, and performance, enabling every product and AI team to build with confidence. This high‑impact group builds and...
Posted 6/3/2026
Postman · San Francisco, California, United States
Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the gl...
Posted 6/2/2026
Hypercubic · San Francisco
We are looking for a founding backend engineer with unusually strong engineering and design taste. The world’s most critical infrastructure—banking, airlines, utilities—is held together by millions of lines of COBOL and...
Posted 5/26/2026
OpenAI · San Francisco
About the Team OpenAI’s Applications Engineering organization builds and operates the products (such as ChatGPT & Codex) that bring our cutting-edge research to millions of users and developers worldwide. The Applied F...
Posted 5/7/2026
Phonely · San Francisco, California
SENIOR BACKEND ENGINEER (PYTHON) At some point in the future, every business will answer their phone with voice AI. We are making sure that when they build that AI agent, the experience of doing so doesn’t suck. We’r...
Posted 4/9/2026
LiteLLM · San Francisco
Senior Backend Engineer LiteLLM is the world's most popular AI Gateway, trusted by top companies like Adobe, Netflix, and NASA. Our platform empowers developers by providing secure, reliable access to LLMs and adjacent ...
Posted 3/31/2026
Koah · San Francisco
Who We Are Koah Labs is building the ad network to power the next generation of AI-native products. Our mission is to help publishers monetize and help advertisers reach the right audience — without compromising speed, ...
Posted 3/27/2026
Airwallex · US - San Francisco
ABOUT AIRWALLEX Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 250,000 businesses world...
Posted 2/19/2026
OpenAI · San Francisco
About the Team The Cooperative AI team is scaling OpenAI with OpenAI. We are building a model powered knowledge system that evolves and learns as our products, systems and customers evolve. We leverage our state of the a...
Posted 2/12/2026
OpenAI · San Francisco
About the Team The GTM (Go-To-Market) Innovation team is an internal powerhouse revolutionizing how we engage customers through groundbreaking applications of our technology. As an incubator, we amplify the impact of Sa...
Posted 2/4/2026
OpenAI · San Francisco
ABOUT THE TEAM The Software Engineering team is responsible for designing and building the scalable, performant, and secure backend systems that power our products—from early prototypes to large-scale deployments. We co...
Posted 1/20/2026
OpenAI · San Francisco
About the Team The Support Automation team at OpenAI scales the organization by applying cutting-edge AI models to real-world challenges, automating and enhancing work across the organization. From customer operations t...
Posted 12/23/2025
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