Senior Backend Engineer Jobs in United States

About Volt At Volt Labs, we’re building the infrastructure layer behind modern business messaging. Our platform helps companies navigate messaging compliance, onboarding, deliverability, routing, and operational complexity across carriers and providers. We are a remote-first, high-ownership team ope

Job Title: Senior Backend Engineer Location: Hybrid (with options for remote work) Job Type: Full-Time Company Overview: At AICrete, we are committed to revolutionizing the global concrete and construction industry. Leveraging AI, machine learning, computer vision, and sophisticated automation, AICr

A Note From the Founder Citizen is a pipeline before it is an app. Signal comes in from every major American city, gets detected, verified, written, and delivered to the right people in seconds, and the whole thing has to hold when a million people open the app at once because something is happening

About Slope Slope builds AI-native credit infrastructure for B2B commerce. We help growing businesses access capital and help credit teams make faster, better, more automated decisions. We are looking for a senior backend engineer to own the backend systems that make that possible. The role You will

About us Today’s financial system is built to favor those with money. Grid’s mission is to level that playing field by building financial products that help users better manage their financial future. The Grid app lets users access cash, build credit, spend money, optimize their taxes, and lots, lot

Hello, we’re Instrumentl. 👋 Grants fund nonprofit work, but they also create some of the toughest operational challenges. Every grant brings its own deadlines, spending restrictions, reporting requirements, and commitments, so managing that complexity across fundraising, finance, and HR requires mor

About Our Client Our client is an applied AI and data analytics company building the intelligence layer for enterprise decision-making. Their platform unifies an organization’s full data landscape — internal systems, social media signals, industry reports, and consumer behavior data — into a single

About Vogo Vogo is a global travel platform that brings all types of accommodations into one place, making it easy for travelers to find the perfect stay. From downtown hotels and luxury resorts to private vacation rentals and remote cabins, Vogo offers the widest selection of accommodations worldwi

About Monte Carlo Monte Carlo is the agent trust platform that unifies data and agent observability to monitor, troubleshoot, and improve production AI systems. As enterprises prepare to deploy thousands of agents across business-critical use cases, Monte Carlo provides the reliability infrastructur

Novella is building AI to protect the largest, most complicated assets in the world. Whether it's a rocket going to space or a skyscraper on the coast, Novella is building the first AI powered specialty insurance brokerage. The Role We're looking for a Senior Backend Engineer to join our team. In yo

Senior Backend Engineer, Shopping Agents Sage AI Labs · San Francisco · Full-time · [Onsite] About us Sage AI Labs is building the infrastructure that lets AI agents transact on the open web. It is one of the few genuinely unsolved problems left in commerce, and whoever solves it sets the defaults e

About Us Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sa

Senior Backend Engineer San Francisco · On Site · Full Time Judgment Labs is building the infrastructure for continual learning in long-horizon AI agents. The next generation of agents will not improve from prompts alone. They will improve from experience: the tasks they attempt, the tools they use,

Prismatic is the integration platform that helps B2B software companies build integrations fast and deliver them at scale. We're turning integrations from a bottleneck into a growth driver for hundreds of companies, from high-growth startups to Fortune 500s. Our platform handles everything that brea

About the Role We're looking for a Senior Backend Engineer to build the systems and services that power our product experience. You'll own the backend infrastructure that makes our content discoverable, our features responsive, and our platform reliable at scale. Your work will directly shape what u

Company Overview: Our company is a start-up that specializes in episodes of care benefit plans. We have a deep expertise in episode pricing and analytics and our goal is to bring transparency and efficiency to the healthcare market. Our company is committed to providing high-quality, affordable heal

Company Overview Closinglock is modernizing the real estate world’s way of transferring information and funds to eliminate wire fraud and provide a secure, easy-to-use platform for title companies, law firms, and other financial services to protect themselves and their clients from wire fraud. We ac

About Us Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sa

Jellyfish processes a huge amount of engineering data, and we are investing heavily in the foundations that make that data reliable, governable, and easy to use. We are looking for a Data Engineer to help mature our Databricks-based data platform, establish strong data modeling patterns, and build t

About Bevel Bevel is an AI Health Companion that helps people make smarter decisions about their health every day. Our app brings together data across sleep, recovery, activity, nutrition, and more, and turns it into real-time, personalized guidance. Whether you're training for something big or just