Top Senior Backend Engineer Jobs in NYC, NY

The Sr. Backend Engineer will develop the core platform and web app using Typescript and Node.js, focusing on performance optimization and UI/UX implementation.

Develop and implement AI solutions and backend services, mentor colleagues, and enhance systems reliability while addressing complex challenges in crypto compliance and customer support.

As a Senior Backend Engineer, you will develop and maintain deployment infrastructure for GitLab's self-managed customers, ensuring secure and scalable operations across various environments.

Build and scale Polymarket's low-latency exchange backend: design high-performance services, optimize for latency/throughput, architect distributed/event-driven systems, operate and debug production on Linux, ensure reliability and security, and collaborate across product, infra, and data teams.

As a Senior Backend Engineer at Patreon, you'll design and deliver features for creator engagement, collaborate with cross-functional teams, and mentor engineers while maintaining a scalable back-end system.

Design, build, and scale highly performant, highly available backend systems for advanced crypto trading instruments. Architect robust services supporting multiple instrument types, collaborate with product and design, and deliver high-value, observable features for traders worldwide.

Design, build, and own core backend services powering AI agents and healthcare workflows, including orchestration of asynchronous, multi-step agentic workflows, high-stakes EHR integrations, platform abstractions, and HIPAA-compliant security and auth.

The Senior Backend Engineer will design, build, and maintain backend services and APIs for Openly's insurance platform, collaborating with various teams.

Design and maintain backend systems for stablecoin payments, lead projects, collaborate with teams, and mentor junior engineers in a fast-paced environment.

Develop Django APIs and backend services for a decentralized energy platform, focusing on scalability, performance, and collaboration with cross-functional teams.

As a Senior Backend Engineer at Posh, you will design, build, and maintain scalable systems and APIs for AI features, focusing on Multi-Agent Systems and cloud infrastructure management.

Collaborate with Agile teams to design and develop robust cloud-based solutions using various programming languages and tools, while mentoring others.

As a Tech Lead, you will spearhead the backend tech vision, mentor junior engineers, collaborate with teams, and improve Java Spring Microservices.

As a Senior Back-end Engineer, you'll design and implement scalable trading systems, optimize performance, and work closely with a distributed team to deliver high-quality software.

As a Sr. Software Engineer, Backend, you will develop AI-powered solutions for clinical documentation and medical coding, collaborating with cross-functional teams to enhance SaaS products and deliver actionable insights for healthcare organizations.

Build, ship, and operate backend systems and data infrastructure; develop robust business logic for health data; prototype and productionize experiments to improve AI/ML models; establish scalability, security, testing, and MLOps best practices; and iterate on engineering process and culture.

The Senior Backend Software Engineer at Headway will design software architecture, mentor teams, and evaluate technology to enhance mental healthcare accessibility.

Looking for an experienced Senior Back-End Developer to work with e-commerce, mentor junior developers, and manage projects using Python and Django.

Design and operate backend services in Python/Django, focusing on APIs, data modeling, performance, and reliability. Collaborate with teams to enhance user workflows and support production issues.

As a Senior Backend Engineer, you'll design scalable services and APIs, maintain systems, and collaborate with teammates to enhance the product experience.

As a Senior Backend Engineer at Offchain Labs, you'll tackle complex distributed systems challenges, optimizing performance and contributing to the security and scalability of blockchain technology.

As a Senior Back-End Engineer, you'll design and build platform features, handle data growth, scale systems, and improve engineering processes while collaborating with teams.

The Sr. Backend Engineer will architect and scale backend systems for the Mode Earn App, focusing on APIs, performance optimization, and collaboration with cross-functional teams.

Design, implement, and maintain Python backend services and scalable data pipelines using dataframes, Parquet, and Databricks. Optimize distributed processing, build APIs, ensure data quality and observability, and mentor engineers.

As a Senior Backend Engineer, you will build robust backend systems, develop APIs, manage databases, and ensure efficient data flow while collaborating with other engineers and stakeholders.