Backend Developer Jobs in New York, United States

Duetti seeks a seasoned Backend Developer to build and maintain scalable, secure systems that power data-driven music monetization. The role blends backend engineering with DevOps, focusing on cloud architecture, containerization, and automation to support data processing, API services, and infrastructure reliability.

Daylight is a decentralized electric utility startup focused on enabling homeowners to generate, store, and share energy. As a Senior Backend Developer, you will design and build Django‑based APIs that power the mobile app and partner integrations, ensuring high performance and reliability.

Infosys is hiring a Java Backend Developer (Technology Consultant 1) to support the full SDLC lifecycle across multiple U.S. locations including Boston, Hartford, Jersey City, New York, Raleigh, and Richardson. Day-to-day work involves capturing stakeholder requirements through interviews and workshops, participating in design discussions, developing and documenting code for new applications, executing test plans, supporting feature integration, and monitoring and troubleshooting live applicatio

Digital Infrastructure team at Galaxy builds backend systems powering blockchain infrastructure and staking products. The role designs and builds APIs, services, Ethereum data pipelines, and monitoring tools while owning end‑to‑end architecture, testing, deployment, and observability, and mentors engineers.

Eulerity is a technology company revolutionizing marketing automation for small businesses and franchises with proprietary software. As a Backend Developer Intern, you will develop, test, and maintain backend services using AI agents to accelerate work, implement features from design to deployment, and collaborate across teams.

Backend Developer on Turnblock.io's Blockchain Distribution Network team, building critical-path infrastructure for decentralized finance. Designs, implements, tests, and deploys new features in rapid cycles within an agile environment.

A seasoned Java engineer will lead the development of Citi’s Prime Sequel Platform, driving scalable, high‑performance solutions for the Prime Finance division. The role blends deep technical expertise in Java, Spring, microservices, and TDD with strategic project leadership, mentorship, and cross‑functional collaboration to deliver robust financial systems.

Platform Engineering team at The Giant Bullseye builds scalable AWS contact‑center solutions. The Technical Lead drives architecture, development, and migration of Amazon Connect services, mentors a scrum team, and integrates with Salesforce and ServiceNow.

As a Java Backend Developer on the Technology & Engineering team at Cognizant, you will lead the design, development, and delivery of scalable backend solutions using Spring Boot, microservices, and cloud-native engineering practices. Day-to-day, you will collaborate with product owners, business stakeholders, architects, and dependent technology teams to translate requirements into technical solutions, provide architectural guidance, and drive application modernization for scalability, reliabil

Blockchain Distribution Network (BDN) team at Turnblock.io builds a decentralized infrastructure enabling DeFi traders to execute better trades. The Backend Developer GoLang designs, implements, tests, and deploys new features in short cycles for critical-path services.

Business Technology team at Navan builds modern services for the contact center domain. The Senior Backend Platform Developer designs and implements production‑grade Node.js serverless APIs on AWS, observability pipelines, and AI‑enabled automation to improve routing and agent support.

Palantir seeks a Backend Software Engineer to build scalable, high-performance services that power data-driven decisions. The role involves designing and maintaining backend systems, creating robust APIs, and optimizing performance for large-scale data.

Senior Backend Engineer builds scalable services for Palantir’s data platforms, leading architecture, API design, and performance optimization. Works with Java, Rust, Python, Go, Kafka, Cassandra, Elasticsearch, Spark, Docker, Kubernetes.

Backend Engineering team at Rad Hires builds a secure, high‑performance backend on AWS for an AI‑first compliance platform. The Senior Backend Engineer designs, implements, and scales data‑intensive services, collaborates with product, design, and data science, and drives architectural decisions.

Backend Engineering team builds high‑performance microservices for an AI‑driven e‑commerce search platform. The Senior GoLang Engineer designs, develops, and maintains scalable distributed systems using Go, gRPC and Protocol Buffers, deploys services on GCP, and collaborates with MLOps and frontend teams to deliver new features and resolve production issues.

Backend Engineer at Sana will design and maintain scalable, resilient systems powering the company’s AI and learning platforms. Working with Node.js (TypeScript) or Kotlin backends, the role focuses on data flow, cloud deployment, and orchestration to deliver value to users worldwide.

Bevel, a leading AI health companion, seeks a Backend Engineer to build scalable, secure backend systems that power real‑time health insights. The role involves shipping features across the stack, designing robust business logic for health data, and running AI/ML experiments to improve accuracy and performance.

Made Card is building a financial and engagement platform for homeowners, offering a credit card with rewards and AI-driven guidance. As a Backend Engineer you will design, develop, and maintain core services and APIs using Python, manage data models in Postgres, DynamoDB, and Redis, and support deployments on Kubernetes, Docker, and AWS. New York City, on-site, full-time role with equity and comprehensive benefits.

Wealthfront Engineering builds automated financial services platforms that empower modern investors. As a Backend Engineer you will design, develop, and maintain core backend systems and APIs, ensure reliability and scalability, and participate in on‑call rotations.

Payments Infrastructure team at Fun builds the backend services powering Web3 payments, enabling seamless onboarding, account access, and money movement on blockchain systems. The Backend Engineer designs and maintains high‑performance APIs, implements new features, and collaborates with product and protocol teams to ensure fault‑tolerant, scalable, and compliant payment routing.