Backend Developer Jobs in New York, United States

Engineering Team at AI2CYBER builds secure backend platforms for advanced cybersecurity products. The Backend Developer designs and implements reliable Python services, scalable REST APIs, data ingestion pipelines, and database schemas while ensuring security and performance.

We are seeking a Backend Developer to join our team and contribute to building robust backend services for our platform. In this role, you will work with Senior Backend Developers, Lead Architect, and other team members to implement reliable and efficient backend functionality that powers our applications.

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.

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.

VML, part of WPP, seeks a Hybris Backend Developer to design, develop, and test SAP Commerce applications. The role involves backend logic, REST/SOAP APIs, integrations, performance tuning, and cloud deployments.

Morgan Stanley seeks a Backend Java Developer to build high‑performance, revenue‑driving applications for investment banking and capital markets. The role focuses on designing and delivering scalable, real‑time services using Java 8, Spring Boot, and reactive programming.

Enterprise Health Platform team at Judi Health builds scalable cloud solutions for pharmacy benefit management. The Senior Backend Developer leads high‑impact API integrations and data migrations, designs serverless Python services on AWS, and collaborates with product managers and major clients to ensure security and reliability.

Technology team at Judi Health builds scalable healthcare platforms to improve patient experiences. The Senior Backend Software Developer leads feature design through delivery, partners with product and design, and expands the enterprise health platform using Python, Flask, SQLAlchemy, PostgreSQL, and AWS services.

Backend Engineering team building scalable Java services for internal business applications. Develops REST APIs and micro‑services using Spring Boot, collaborates in an agile environment, and balances multiple priorities across a matrixed organization.

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.

Application Monitoring Platform team at Talan builds a strategic monitoring solution for real-time visibility into application health and infrastructure. The Senior Java Backend Developer designs and develops scalable Java 21 backend services, APIs, and integrates with scheduling tools while collaborating with Front-End, DevOps, and support teams.

LiveRamp, a leader in data collaboration and identity resolution, seeks a Senior Software Development Engineer – Big Data Backend to build and maintain data pipelines powering the largest Identity Resolution graph in the U.S. The role involves designing, optimizing, and deploying batch-oriented data pipelines using Spark, Hadoop MapReduce, and Apache Beam on Google Cloud Platform, as well as managing cloud resources (BigQuery, Dataproc, Dataflow, PubSub). The engineer will collaborate with Data

RSM US LLP’s Capital Markets Technology Transformation team builds high‑performance, API‑driven platforms for a leading capital markets client. The Senior Backend Lead designs secure, scalable backend and API architectures, writes .NET/C# code, mentors teams, and drives CI/CD and observability best practices.

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.

RSM US seeks experienced Senior Backend Lead Developer for temporary role supporting large-scale technology transformation for Capital Markets client. Lead backend engineering across Agile teams, design secure scalable API architectures, build RESTful microservices with .NET, C#, SQL Server, Dapper, Swagger/OpenAPI.

Leading provider of professional services to the middle market globally. Senior Backend Lead Developer will provide technical leadership, shape modern backend architectures, and guide engineering teams delivering high-performance, scalable, API-driven platforms in a complex enterprise environment.

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.