Backend Jobs in United States

Staff Backend Engineer

Agentic AI AI Analytics Anthropic Automation +19 skills

Location: Remote (North America) or Austin, TX Employment Type: Full-time (no contractors) Department: Engineering Why now Hamming builds three products for voice and chat AI agents: testing/simulation to validate…

Raylu Ai

North AmericaFull-timeSenior

Senior Backend Engineer

Agentic AI Automation Cloud Distributed Systems LLM +3 skills

Position Summary We’re hiring a Senior Backend Engineer to be the scaling expert behind our core systems. You’ll drive architectural decisions that balance “what must work today” with “what must scale tomorrow,” owning…

Zettabyte

Senior/Staff Backend Engineer - Distributed System

AI API Api Design Claude Code Cloud +13 skills

About Us At Zettabyte, we’re on a mission to make AI compute ubiquitous, seamless, and limitless . We’re building a cloud where AI just works—anywhere, anytime. “AI Power. Everywhere.” Be part of the team designing the…

Apiphany

Senior / Staff Backend Engineer

AI API AWS Azure CI/CD +15 skills

About Apiphany Apiphany is a pioneering foundational AI company for physical product development. We empower global innovators in automotive, aerospace, medtech, and energy to transform mountains of unstructured…

Air Apps

Open 0d On-siteNorth AmericaFull-time

Backend Engineer

AI API Authentication AWS Azure +14 skills

About Air Apps At Air Apps, we believe in thinking bigger—and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and…

Syndesus

North AmericaFull-timeSenior

Sr Founding Backend Engineer

AI API Automation Cloud Customer Onboarding +2 skills

Senior Backend Engineer | Voice AI Startup About the Company Our client is a fast-growing Y Combinator-backed Voice AI startup transforming sales, support, and customer engagement. With $5M in seed funding and…

Quo

Staff Backend Engineer

RemoteNorth AmericaStaff

AI Android AWS CAD Datadog +17 skills

About the role Quo’s teams power key systems that help thousands of businesses communicate better. As a Staff Backend Engineer, you will own the technical strategy for how we design, build, and operate features across…

yeet

On-siteNorth AmericaFull-time

Backend Engineer

API Data Ingestion Data Pipelines Distributed Systems Event Driven Architecture +10 skills

About yeet yeet is built by a tight-knit group of systems, observability, and kernel nerds who refuse to accept “mystery outages” as normal. We’re a small, high-impact team with domain expertise in Linux, eBPF,…

Conversion

On-siteNorth AmericaFull-time

Backend Engineer (Infra)

Agentic AI AI Automation CI/CD ClickHouse +12 skills

About Us Conversion is the agentic marketing automation platform for modern enterprises such as Plaid, ClickHouse, Webflow, and Productboard. Our platform lets growth teams run their entire go-to-market motion in one…

Project Method

HybridNorth AmericaSenior

Senior Backend Engineer @ Zingage

Agentic AI AI Observability

🚀 Senior Backend Engineer at Zingage Hybrid (New York City, NY) $180,000 - $250,000 View all open roles About the Role Zingage is hiring a Senior Backend Engineer to own the core decision engine behind our real-time…

DepthFirst

On-siteNorth AmericaFull-time

Backend Engineer

Agentic AI AI AWS Databricks LLM +6 skills

About depthfirst We believe that software is the foundation of modern civilization - yet vulnerabilities threaten its integrity, security, and resilience. We are on a mission to solve security. depthfirst is building…

Tools for Humanity

On-siteNorth AmericaFull-timeStaff

Staff Backend Engineer

AI Blockchain Cloud Cryptography Distributed Systems +4 skills

About the Company: Tools for Humanity (TFH) designs and builds technology behind World. World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the…

Grindr

Staff Software Engineer, Backend

AI API AWS Cloud Distributed Systems +8 skills

About the Team: Grindr is an AI-native platform powering how millions of gay people connect globally. With 15M+ monthly users, 130B+ annual messages, and a team of fewer than 200, we move fast, stay lean, and tackle…

Bluesky

RemoteNorth AmericaSenior

Senior Backend Developer

Cassandra ClickHouse Elasticsearch MySQL Observability +3 skills

About Us: Bluesky's vision is to make social more like the web itself. We're building a social media app , but beyond that, we've created a protocol that supports a broad ecosystem of applications and…

3Y Health

On-siteNorth AmericaFull-timeStaff

Staff Software Engineer, Backend

AI API Api Design Automation CI/CD +8 skills

About Us At 3Y Health, we are developing an AI business manager to streamline healthcare administration and address the complexity that consumes nearly 40 percent of the industry’s revenue. Our comprehensive platform…

Quo

RemoteNorth AmericaSenior

Senior Backend Engineer

AI AWS CAD C# Customer Onboarding +15 skills

About the Role As a Senior Backend Engineer at Quo, you will spend a majority of your time coding, architecting, and owning moderate to complex components. Beyond your technical work, you may also lead a small team or…

Tristero

Backend Engineer

RemoteNorth America

API Api Design Blockchain DeFi Distributed Systems +8 skills

Location: Remote Compensation: $100k — $160k USD base, 0.2-0.5% equity Today, if you’re trading onchain, you’re broadcasting your trades to the world before they happen. Sophisticated actors systematically front-run…

Tristero

RemoteNorth AmericaSenior

Senior Backend Engineer

API Api Design Blockchain DeFi Distributed Systems +6 skills

Location: Remote / Americas Preferred Compensation: $160k — $240k USD base, 0.4-0.8% equity Today, if you’re trading onchain, you’re broadcasting your trades to the world before they happen. Sophisticated actors…

Ampa

Backend Engineer – APIs & Data Systems

North AmericaFull-time

API Api Design AWS Cloud Data Pipelines +12 skills

What to Expect: Working at Ampa is a rare chance to help transform global mental health and save millions of lives — a level of impact that demands deep commitment. Success here requires resilience, adaptability, and…

Zencastr

RemoteNorth AmericaFull-timeSenior

Senior Backend Engineer (Remote)

Agile AI API Cloud GCP +7 skills

Empower the voices of the world @ Zencastr. If you want to push the world of podcasting into the future, come join a team who loves to live on the edge! We are a fully distributed team of smart people who are…