Backend Jobs in United States

Open 25d North AmericaLead

Lead Software Engineer- Java Back End, AWS

Agentic AI Agile AI Aurora Automation +24 skills

Lead backend engineer at JPMorgan Chase's Asset & Wealth Management, writing and reviewing secure production code in Java (Spring Boot) and Python on AWS, while guiding technical teams and driving adoption of AI-assisted engineering practices across the SDLC.

Otter

Open 123d North AmericaFull-timeSenior

Senior Backend Software Engineer

AI Analytics API Api Design AWS +18 skills

Builds and maintains backend services for an AI-driven marketing platform that automates restaurant promotions across delivery platforms, using Go, PostgreSQL, and cloud infrastructure.

Senior Backend Software Engineer

Open 117d North AmericaFull-timeSenior

AI Analytics API Api Design AWS +18 skills

Builds and maintains backend services for an AI-driven marketing automation platform that optimizes restaurant delivery orders across third-party platforms.

Senior Backend Engineer

Open 108d North AmericaFull-timeSenior

API AWS Azure Cloud Distributed Systems +8 skills

Designs and optimizes backend systems for Otter’s food delivery platform, focusing on inventory savings tools and mission-critical applications to reduce costs and streamline restaurant operations using Java, cloud platforms, and distributed architectures.

Senior Backend Engineer

Open 108d North AmericaFull-timeSenior

API AWS Azure Cloud Distributed Systems +8 skills

Designs and optimizes backend systems for Otter’s food delivery platform, focusing on inventory savings tools and mission-critical applications while leveraging Java, cloud platforms, and distributed architectures.

167K – 230K $

expedition-technology

Software Engineer - Back End - R129

Open 25d North America

Agile AI API AWS Cloud +21 skills

Expedition Technology (EXP), is seeking motivated software engineers to join our Solis team, whose mission is to develop, deploy, and maintain the Training Data Storefront (TDS). TDS is a central repository of AI/ML…

Georgia IT

Backend (.NET) Developer

Open 25d North America

API .NET REST SQL SQL Server

Backend (.NET) Developer Remote As a Backend Developer, you will have a deep understanding of backend technologies, particularly .NET and SQL Server, and have a passion for creating efficient, scalable, and secure…

GetWhys

Open 30d HybridNorth America

Backend Software Engineer

AI Analytics API Data Modeling Data Pipelines +6 skills

Build the backend services, APIs, third-party integrations, and data pipelines behind GetWhys' B2B buyer-intelligence product, including LLM-powered workflows, mainly in TypeScript. Hybrid role based in one of four hubs: NYC, Portland, Boise, or Bozeman.

United States Digital Space LLC

Open 25d HybridNorth AmericaContractSenior

Senior Engineer - Security Products (Backend APIs)

Agile AI API Api Design CI/CD +11 skills

Senior backend engineer building and owning the public-facing APIs and backend services (in Go) for the Security Products Console — Next-Gen WAF, DDoS protection, and Bot Management — on an edge cloud platform. Day to day: API design and docs, shipping services, on-call, mentoring, and heavy use of AI coding agents.

Confluent - Senior Software Engineer - Backend

AI API Automation Cloud Cloud Native +8 skills

Introduction At IBM Software, we transform client challenges into solutions. Building the world’s leading AI-powered, cloud-native products that shape the future of business and society. Our legacy of innovation…

Socket.dev

Open 25d HybridNorth AmericaFull-timeSenior

Senior Software Engineer, Backend

API Aurora Automation AWS CDK +21 skills

Senior Backend Engineer at a fintech startup building rent payment systems. Responsibilities include designing and scaling payment, billing, and identity services using Java, Spring Boot, and AWS (EKS, Aurora, DynamoDB).

172K – 215K $

Moody's Investors Service

Open 25d North AmericaFull-timeSenior

Backend - Senior Software Engineer

AI Analytics Data Science Machine Learning Python +3 skills

Senior backend engineer designing and maintaining scalable back-end services, APIs, and web applications for Moody's insurance analytics platform. Day-to-day work centers on Python, SQL, and AI-assisted development, with close collaboration with data science and machine learning teams.

Senior Software Engineer, Backend

Open 25d HybridNorth AmericaFull-timeSenior

AI API CI/CD Cloud Data Pipelines +7 skills

Senior Backend Software Engineer at Beacon AI, an aviation-focused AI startup, building backend services, APIs, and real-time/batch data pipelines that power a flight safety platform. Day-to-day is backend development in Python or Node.js/TypeScript, working with databases and production systems in a hybrid San Carlos, CA role.

Bonfirevc

Senior Product Engineer (Backend)

Agentic AI AI API Api Design AWS +9 skills

Axle, a fintech startup building an AI-powered platform for investment banks' capital-markets relationships, is hiring a hands-on backend Product Engineer in NYC. Day to day you design and ship services, APIs, and data models end to end using Java/Spring Boot, PostgreSQL, and AWS, optimizing performance as usage scales. Five days a week in the Flatiron office.

Reinventing Geospatial, Inc. (rgi)

Senior Software Engineer, Backend

ArcGIS Automation Cloud Containerization C# +10 skills

Senior backend engineer at a geospatial intelligence contractor serving Defense and Intelligence clients: migrating Java codebases (Java 8 to 17), integrating and deploying Jenkins pipelines, maintaining GeoServer-based geospatial systems, and supporting databases — all in classified environments requiring an active TS/SCI clearance and US citizenship.

Connexity, Inc.

Senior Software Engineer, Backend

Agile AI API Api Design BigQuery +18 skills

Senior backend engineer on Connexity's Internal Tools team building a next-generation advertiser management platform from the ground up. Day-to-day work centers on designing Java/Spring Boot APIs, microservices, and relational data models, with emphasis on high-performance middleware, system design, and AI-assisted development workflows.

RediRecruit, LLC

Open 25d North AmericaFull-timeSenior

Senior Backend Software Engineer

Open 25d HybridNorth AmericaSenior

Senior Backend Engineer (Go) for a confidential San Francisco consumer tech company working across gaming, entertainment, fintech, and real-money experiences. You own backend features end-to-end — design through production — including matchmaking, fraud prevention, CI/CD, and experimentation systems. Onsite 5 days/week; $200k–$400k plus equity.

Senior Backend Software Engineer

Agentic AI Agile AI API AWS +34 skills

Develop and scale backend services and APIs for Salesforce's multi-tenant CRM platform and AI agents. You will design robust systems using languages like Java, Go, or Python, integrate AI tools into your development workflow, and manage large-scale data across cloud environments like AWS or GCP.

Senior Backend Software Engineer

AI Automation AWS Cloud Datadog +10 skills

Senior backend engineer at Headway building reliable systems over the fragmented US mental healthcare system — clinical data management, AI-assisted insurance claims/billing, patient-first services, and provider payment ledgers — using Python, TypeScript, Postgres, Redis, and AWS. On-site role in New York.

183K – 279K $

Carex Consulting Group

Senior Backend Software Engineer

Ansible API Authentication Automation AWS +17 skills

Senior Backend Engineer designing scalable solutions for an engineering simulation platform. Day-to-day involves building high-performance computing (HPC) infrastructure, web APIs, and distributed systems using Java, Python, or C++. Key technologies include AWS, Kubernetes, Docker, and Terraform to manage hybrid-cloud compute and storage environments.