Backend Developer Jobs in New York, United States

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.

Capgemini is seeking a Java AWS Backend Developer to join its engineering team in Dallas, TX, working onsite. The role involves building enterprise APIs and web applications using Angular, TypeScript, and core Java with Spring/Spring Boot, while leveraging AWS cloud deployment and application management.

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.

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.

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.

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.

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.

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world.

The Backend Software Developer is responsible for maintaining, improving, and expanding the server-side applications supporting the company's FourSquare Solutions warehouse automation platform. The FourSquare applications are functional today and operate primarily as unattended server applications responsible for executing business logic, system coordination, pathing, and other functions within a larger logistics solution.

Dispatch seeks a Backend Engineer to build and scale integration infrastructure for wealth tech data orchestration. The role involves designing, implementing, and maintaining APIs, data models, and synchronization pipelines that connect third‑party financial systems.

Production Engineering Team at Fluidstack builds the observability platform and control plane for hyperscale AI compute fleets. The Backend Engineer designs and operates data pipelines, API surfaces, and state management systems to make thousands of GPUs legible and ensure fleet reality matches truth.

Quo is building an AI-powered platform to unify calls, texts, and customer data for small businesses. As a Senior Backend Engineer, you will code, architect, and own complex components while potentially leading small teams or projects.

Industrious's Growth Engineering team owns every customer-facing surface, including the member portal, mobile app, and public site, for a member base growing alongside 100+ new locations this year. As a Senior Backend Engineer, you'll own production backend services (Node.js, TypeScript, Kafka, MongoDB), drive the member credit system and reservation-experience redesign, and design AI agentic systems, agents, MCP servers, and production guardrails.

Rushdown Studios, a co-dev game studio founded by games industry veterans, is seeking an experienced Backend Engineer to support a partner studio by building game backends and tackling unique technical challenges. Day-to-day, you will prototype and build cloud-based microservices, author software design documents, provide general support for live features and releases, and partner with designers to iterate on features for a smoother player experience.

AI Infrastructure Team builds the backend foundation for AI-driven government contracting solutions. The Backend Engineer designs scalable services with TypeScript and JavaScript, manages PostgreSQL databases, and deploys containers on Docker and Kubernetes in AWS. Works cross‑functionally to integrate CI/CD pipelines, monitor with Prometheus and Grafana, and uphold code quality.

Syndesus, an applied AI and data analytics company, builds a unified intelligence platform for enterprise decision‑making. As a Senior Backend Engineer you will design, build and scale Go and Python services, architect data ingestion pipelines and APIs, and collaborate with ML engineers to integrate predictive models.

Nourish seeks a Senior Backend Engineer to lead the development of high‑performance, scalable services that power a nationwide nutrition‑focused health platform. The role blends deep technical ownership with cross‑functional collaboration, driving feature delivery from concept through production while continuously improving engineering practices.

Uniswap Labs builds the world’s largest decentralized exchange and related products like the Web App, Wallet, and Trading API, shaping how value flows on the internet. As a Staff Backend Engineer you will lead architecture and strategy, drive end‑to‑end technical projects, design resilient large‑scale systems, and mentor engineers across pods.

Junior AI's backend team builds the AI-driven research platform that powers investment analysis. The Senior Backend Engineer architects and scales high‑throughput LLM interactions, vector search and multi‑agent orchestration, stitches AI infrastructure across model providers and internal APIs, and owns reliability and observability.