Top Backend Engineer Jobs in NYC, NY

Design, implement, document, and optimize scalable back-end services for Bilt’s mobile app and website. Build Java microservices with Quarkus, use cloud platforms, improve infrastructure automation, CI/CD, monitoring, and reliability, and contribute across the development lifecycle. The role involves technical ownership, integration feasibility, collaboration with engineering and product leaders, and mentoring junior engineers.

Lead design and evolution of Hex's graph-based compute execution architecture. Optimize parallel execution, caching, and remote warehouse interactions. Instrument and diagnose performance, author technical proposals, mentor engineers, and roadmap long-term platform designs while remaining hands-on in backend code.

Design and build production integrations with CRMs, CDPs, measurement vendors, and data partners. Own Vibe’s public API architecture, developer tooling, documentation, monitoring, authentication, and MCP gateway contributions. Lead reliability improvements for distributed backend systems and data pipelines, establish engineering standards, guide technical direction, and partner with external organizations on data contracts. The role requires strong TypeScript, AWS, and Terraform experience plus end-to-end ownership of major projects.

The Senior/Staff Backend Engineer will build AI-driven products, optimize performance, collaborate with teams, and establish best practices for Applied AI at Fora.

The Senior Backend Engineer will build and manage the backend systems for Fora's products, implementing new functionalities, optimizing architecture, and collaborating with cross-functional teams.

Build and launch scalable, customer-facing backend products for Brex’s financial platform. Responsibilities include designing backend systems, collaborating cross-functionally, improving banking experiences, owning solutions from data models through scalability and operations, and measuring ongoing performance. The role requires strong backend development experience, database expertise, technical ownership, communication, and a commitment to engineering quality.

Build and launch customer-facing financial software, collaborating across engineering, Sales, and Support. Design scalable, operable solutions spanning user experience, data models, and metrics; develop new features end-to-end, improve banking experiences, and maintain high engineering standards. The role requires full-stack application development, client-side architecture, testing, deployment, and ownership of products from concept through ongoing optimization.

Build and scale Posh’s backend services and APIs, owning systems from design through deployment and on-call. Responsibilities include improving performance and reliability, creating data models and pipelines, embedding security and instrumentation, contributing to architecture and code reviews, mentoring engineers, and participating in technical interviews.

Design, build, and own high-throughput backend and infrastructure services for a healthcare AI agent platform. Ensure reliability, graceful degradation, observability, performance, and secure handling of sensitive patient data. Drive architecture and operate services end-to-end in production.

Design, build, and maintain scalable microservices in Go using gRPC and Protocol Buffers; deploy on GCP (Compute Engine, Cloud Run, Cloud Storage); implement API security (OAuth2) and credential management; containerize with Docker/Kubernetes; collaborate with MLOps and frontend teams; mentor junior developers; troubleshoot production issues and document API contracts.

Build backend systems for Stripe’s Intelligent Commerce team. The provided description contains no detailed responsibilities, minimum requirements, preferred qualifications, technologies, compensation, travel, or clearance information.

Backend Software Engineers at Palantir develop scalable backend services, design APIs, and optimize applications for performance, collaborating with cross-functional teams.

Own and lead the technical direction of a major codebase section while designing, building, testing, documenting, and maintaining secure, scalable API-based decisioning products. Partner with product, engineering, and security teams on agile delivery, troubleshoot production issues, meet SLA requirements, and participate in an on-call rotation.

Build and maintain production-grade Golang backend services for an AI-driven investment platform. Design APIs and data pipelines supporting AI and reasoning systems, improve performance, reliability, and observability, review scalable architectures, and debug production issues. The role requires end-to-end system ownership, collaboration with AI and product teams, and mentoring as responsibilities grow.

Design, develop, and scale Java-based microservices and real-time event-processing systems. Build RESTful APIs, implement complex business logic, and architect event-driven solutions using Apache Kafka. Deploy and manage containerized applications on AWS EKS, integrate AWS services, and ensure system reliability through testing, performance tuning, and troubleshooting. The role also involves distributed systems, cloud infrastructure, CI/CD, and database integration.

Build and own backend services for a private markets investing platform. Deliver end-to-end software across design, implementation, testing, deployment, and operations. Collaborate with product and engineering teams, iterate on ambiguous problems, apply distributed systems principles, and incorporate AI/LLMs for data extraction and document generation. Participate in recruiting and maintain high-quality delivery practices.

Design, build, and maintain backend services and APIs using Ruby on Rails. Improve performance, scalability, reliability, and write well-tested production code. Collaborate with Product, Frontend, Data Engineering, and QA teams.

As a Senior Backend Software Engineer, you'll design, build, and operate scalable infrastructure systems, contributing to complex data processing libraries and distributed systems, while collaborating with teams to create impactful software solutions.

This role involves developing scalable backend services, collaborating with cross-functional teams, optimizing applications, and building robust APIs for user-facing elements.

Backend Software Engineers at Palantir build scalable software solutions, focusing on data systems and infrastructure while collaborating with teams. Responsibilities include building performant systems, designing APIs, and automating deployment for distributed systems.

As a Senior Backend Software Engineer, you'll lead the architecture and development of scalable backend services, ensuring high performance and coding standards while collaborating with cross-functional teams to enhance user workflows and build robust APIs.

The Backend Software Engineer will build scalable systems and APIs, work with various programming languages, and enhance the performance of large-scale data systems at Palantir.

The Senior Software Engineer will design and implement backend services, manage architectural decisions, and drive improvements in data quality, performance, and reliability, while collaborating across teams to enhance client and provider interactions in mental healthcare.

Lead the architecture, development, testing, and maintenance of scalable backend systems and APIs. Drive technical decisions, code quality, performance optimization, documentation, continuous delivery, and monitoring. Collaborate with product, design, and engineering teams to translate requirements into reliable solutions. Mentor junior engineers, conduct code reviews, resolve complex technical issues, and contribute to agile development and overall technology strategy.

Develop and maintain backend infrastructure for Arbitrum, focusing on distributed systems, blockchain scalability, security, performance, compiler pipelines, SDK frameworks, microservices, databases, and API architecture. Responsibilities include maintaining Nitro Testnode, reviewing code, supporting stakeholders, collaborating with research and security teams, and driving technical roadmaps for high-performance blockchain systems.