Top Senior Backend Engineer Jobs in NYC, NY

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.

Design and scale backend systems, manage core services and APIs, collaborate with cross-functional teams, and enhance system reliability and performance.

The Senior Backend Engineer will design, build, and scale backend services, architect data processing pipelines, and mentor engineers in a rapidly growing AI firm.

As a Senior Backend Engineer, you'll design and build RESTful APIs, microservices on Kubernetes, and distributed systems in Go, while collaborating across various teams.

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

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 at Eight Sleep, you will develop and maintain back-end services and improve data processing, supporting critical business logic in distributed systems.

The Sr. Backend Engineer will design and maintain backend systems using Django, optimize PostgreSQL databases, implement secure workflows, and mentor other engineers while collaborating across 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'll design scalable services and APIs, maintain systems, and collaborate with teammates to enhance the product experience.

As a Senior Backend Engineer in Conversational AI, you will design and implement intelligent systems, lead technical projects, mentor teammates, and ensure the quality of your team's code while collaborating with cross-functional partners.

The Senior Backend Engineer will design and implement core services and AI infrastructure, create REST APIs, and develop ingestion pipelines while collaborating with cross-functional teams to enhance the AI platform for hardware product development.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

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.

As a Senior Backend Engineer, you will build and optimize the infrastructure for AI agents, improving reliability and performance while making technical decisions and contributing to code quality.

Design, build, and optimize high-performance backend APIs and real-time data processing systems. Scale distributed systems, debug and tune production services, participate in on-call rotation, mentor junior engineers, and collaborate cross-functionally from feature concept through deployment.

Build and ship production AI features (LLM agents, tool/function calling, RAG pipelines) and reliable backend services. Implement observability, tests, rollback/fallbacks, and evaluation to keep models grounded, safe, and cost-effective. Collaborate with product, design, and GTM; run experiments and raise engineering standards.

As a Senior Backend Engineer, you will design and develop software solutions for identity verification, mentor junior engineers, and ensure system scalability, security, and high performance.

The Senior Backend Engineer will design, build, and maintain backend services for Ernesta's order management system, focusing on architecture, integrations, and data integrity.

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.

The Senior Software Engineer will design and develop scalable applications, enhance DevOps practices, and drive continuous improvement within infrastructure and systems.

Design and develop scalable backend services using Java and Spring Boot, build REST APIs, improve performance and maintainability of systems, and collaborate in an Agile environment.

The Senior Backend Engineer will lead the development of backend services, collaborate with teams, and ensure scalable, user-focused solutions while leveraging modern software practices.

Design, build, and maintain scalable backend services for patient care workflows, ensuring high performance and collaborating with multiple teams.

The Senior Backend Engineer will maintain a PHP-based payment platform, migrate to Rust, troubleshoot production systems, and contribute to code quality and deployment cycles.