"Senior Software Engineer, Backend" Jobs in United States

Senior Software Engineer, Backend

Helius ·

About Helius Helius is building the core infrastructure for Solana - empowering developers to create the next generation of crypto-powered applications. Our mission is to accelerate the development of internet capital ma

Senior Software Engineer, Backend

Zip Co Limited ·

Build the payments infrastructure that enables Zip customers to transact securely and seamlessly at scale. Bring deep backend and payments expertise, strong technical ownership, and practical AI fluency to solve complex

Senior Software Engineer, Backend (Product)

Otter.ai · Mountain View

Own end-to-end delivery of AI product features Lead the design and implementation of complex features—from initial concept through production—ensuring high quality and strong user impact. Drive system design for AI-backe

Senior Software Engineer, Backend (Infrastructure)

Otter.ai · Mountain View

Take ownership of architecting scalable solutions utilizing technologies like MySQL, Vitess, Kafka, Cassandra, Redis, and big data platforms to support sophisticated AI applications and workflows. Leverage your extensive

Senior Software Engineer, Backend

Flex · New York City

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2026 and paying rent on time is expensive, inflexible, and difficult. We’re here

Senior Software Engineer, Backend

Siro · New York City

We're transforming the trillion-dollar world of in-person sales by capturing and analyzing a never-before-digitized dataset: face-to-face conversations. While the tech world obsesses over digital interactions, most of ou

Senior Software Engineer, Backend

Mecka AI · New York City

About Mecka AI Mecka AI is building the data infrastructure layer for robotics and embodied AI. We partner with leading AI labs and robotics companies to deliver high-quality, real-world datasets used to train, evaluat

Senior Software Engineer, Backend

Oscar Health · New York City

Hi, we're Oscar. We're hiring a Senior Software Engineer, Backend to join our Engineering team. Oscar is the first health insurance company built around a full stack technology platform and a focus on serving our members

Senior Software Engineer, Backend

PathAI · Boston

PathAI's mission is to improve patient outcomes with AI-powered pathology. Our platform promises substantial improvements to the accuracy of diagnosis and the efficacy of treatment of diseases like cancer, leveraging mo

Senior Software Engineer, Backend (Loan Origination and Reporting)

Affirm ·

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Engineering team builds systems that

Senior Software Engineer, Backend

Base Power Company · Austin

About Base Base is America’s next-generation power company. We’re rebuilding the foundation of modern civilization–electricity–by deploying a vast network of distributed batteries that is transforming today’s fragile, ce

Senior Software Engineer, Backend (Partner Merchant Interface)

Affirm ·

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Partner Merchant Interfaces - Integration t

Senior Software Engineer, Backend

Finch · San Francisco

Live by and champion our values: empathy, execution, humility, curiosity. Design, build, and maintain powerful services to enable Finch’s data presentation layer. Lead the charge on product expansion initiatives, includi

Senior Software Engineer, Backend

Myriad ·

Minimum qualifications: Bachelor's degree in Computer Science, Electrical Engineering, Computer Engineering, a related technical field, or equivalent practical experience. 3 years of experience in software development wi

Senior Software Engineer, Backend

SmarterDx ·

SmarterDx is transforming how health systems use clinical AI to capture the full value of patient care delivered. Built by physician-data scientists and trained on clinically-validated EHR data, our clinical AI platform