Backend Engineer Jobs in San Francisco, USA

Senior Backend Engineer at Stellar. Apply via Ashby.

Backend Engineer, Integrations & APIs at Stellar. Apply via Ashby.

Backend Engineer, Core Platform at Lapel. Apply via Ashby.

Backend Engineer, Primitives at Lapel. Apply via Ashby.

Backend Engineer, Agents at Lapel. Apply via Ashby.

Backend Engineer at Lapel. Apply via Ashby.

Backend Engineer at Speak. Apply via Ashby.

<h3><strong>About Pump.co</strong></h3> <p>Gartner predicts that cloud spend will be over $2T/yr by 2030, making it the fastest-growing expense for tech companies. Managing it well demands constant engineering effort—time that could be spent building your product.</p> <p>At <strong>Pump</strong>, we're building the fastest way to save ~60% on cloud costs. Our AI-powered platform not only automates savings but also leverages the power of group buying for even deeper discounts. Backed by <strong>Y Combinator</strong>, we’re on a mission to transform cloud cost optimization through AI.</p> <p>Our founding team includes experienced entrepreneurs with prior exits, and our culture is fast-paced, collaborative, and flat in structure. If you’re excited about shipping real impact and joining a team at an early, career-defining stage—we’d love to meet you.</p> <h3><strong>About the Role</strong></h3> <p><strong>Skills:</strong> Python, FastAPI, PostgreSQL, AWS, Docker, Kubernetes (nice to have), LLM/AI (bonus)</p> <p>As a <strong>Backend Engineer</strong>, you’ll contribute directly to the core of our product and infrastructure. This role is ideal for someone looking to grow within a strong engineering team while delivering meaningful work that touches real customers.</p> <p>You’ll collaborate closely with engineers, designers, and founders—working across the stack to build, improve, and scale our platform.</p> <p><strong>We are 5 days a week in office. No remote work will be considered. </strong></p> <h3><strong>What You’ll Do</strong></h3> <ul> <li>Design, build, and maintain backend services that power the Pump platform<br><br></li> <li>Work with the team to define and scope new product features<br><br></li> <li>Contribute to a strong engineering culture by participating in code reviews and continuous improvement<br><br></li> <li>Help extend our internal tools, dev workflows, and CI/CD pipelines<br><br></li> <li>Ensure system reliability, performance, and maintainability<br><br></li> <li>Collaborate across functions to solve real customer problems with intuitive engineering solutions<br><br></li> </ul> <h3><strong>What We’re Looking For</strong></h3> <ul> <li>3–15 years of professional backend engineering experience</li> <li>Ability to work <strong>5 days a week in office</strong></li> <li>Proficiency in <strong>Python</strong> and familiarity with <strong>FastAPI</strong> or similar frameworks</li> <li>Experience with <strong>SQL databases</strong>

Staff Backend Engineer at Siftstack. Apply via Ashby.

Backend Engineer - San Francisco at Plaud. Apply via Ashby.

Senior Backend Engineer at Hedra. Apply via Ashby.

Rust Backend Engineer at Svix. Apply via Ashby.

Backend Engineer at Depthfirst. Apply via Ashby.

Senior Backend Engineer at Straia. Apply via Ashby.

Team Lead Backend Engineer (Core Applications) at Hockeystack. Apply via Ashby.

Backend Engineer, Models at Meter. Apply via Ashby.

Backend Engineer at Meter. Apply via Ashby.

Backend Engineer, Data Centers at Meter. Apply via Ashby.

<div class="content-intro"><p><span style="font-weight: 400;"><strong>About Faire</strong></span></p> <p>Faire is a technology wholesale platform built on the belief that the future is local. Independent retailers around the globe collectively represent a multi-hundred-billion-dollar wholesale market that has historically been fragmented and offline. At Faire, we're using the power of tech, data, and machine learning to connect this thriving community of entrepreneurs across the globe. Picture your favorite boutique in town — we help them discover the best products from around the world to sell in their stores. With the right tools and insights, we believe that we can level the playing field so businesses can grow and local communities can thrive.</p> <p>We’re looking for smart, resourceful and passionate people to join us as we power the shop local movement. If you believe in community, come join ours.</p></div><h4><strong>About the Role:</strong></h4> <p>The Discovery Search team (Search FX) sits at the intersection of search, evaluation, and personalization shaping how retailers find the products they love. Our mission is to build the most intuitive, intelligent, and delightful discovery experience in wholesale: one that feels less like a search engine and more like a trusted merchant with an encyclopedic knowledge of what's in stock and what will sell.</p> <p>As a Staff Engineer on the Search FX team, you will be a primary technical architect for our retailer-facing search surfaces. You will own the technical roadmap for search, recommendations, and Gen-AI experiences that drive a meaningful share of marketplace engagement. You will bridge the gap between high-scale infrastructure and world-class UX, helping unify retrieval, ranking, and personalization into a cohesive, high-performance system.</p> <h4><strong>You’re excited about this role because...</strong></h4> <ul> <li><strong>You will own the technical vision:</strong> Define the end-to-end architecture for Faire's search and discovery experience, ensuring it is fast, relevant, and deeply personalized.</li> <li><strong>You’ll build at the AI frontier:</strong> Integrate LLM-powered capabilities, such as natural language search and intelligent query understanding, directly into the product.</li> <li><strong>You’ll solve complex scale problems:</strong> Help build high-scale, low-latency systems that navigate millions of products while meeting strict industry latency benchmarks.</li> <li><strong>You’ll drive cross-functional impact:</strong> Partner closely with Data Science, Product, and Design to iterate on ranking models and UX components.</li> <li><strong>You’ll be a mentor and leader:</strong>

Staff Backend Engineer at Gigaml. Apply via Ashby.