Top Senior Backend Engineer Jobs in NYC, NY

Design, build, and maintain globally distributed, fault-tolerant backend microservices and data pipelines. Integrate and refine Large Language Models, collaborate cross-functionally, ensure high-quality code, testing, monitoring, and mentor other engineers while owning features end-to-end.

Design, build, and scale foundational platform services to ingest, process, and route internet-scale security events. Develop fault-tolerant microservices, CI/CD and DevOps tooling for detection-as-code, evolve unified detection management, drive observability and policy features, mentor engineers, and collaborate cross-functionally to deliver real-time detection generation.

The role involves leading backend engineering efforts to build scalable distributed systems, enhance APIs, and troubleshoot production issues. Candidates should possess expertise in backend languages and cloud engineering principles.

As a Senior Backend Engineer, you'll enhance the reliability and scalability of healthcare infrastructure, automate workflows, and promote operational excellence across teams.

Develop and maintain high-scale backend services, troubleshoot issues, mentor engineers, and collaborate with product teams for feature implementation.

Build and operate a scalable integrations platform for data connectors ingesting petabytes/day. Design and develop distributed, multi-region systems in Go/Python, implement connectors (REST, WebSocket, file), ensure high availability, optimize performance/cost, support production incidents, and drive cross-team platform initiatives and SDK improvements.

Design and implement RESTful APIs, microservices, and distributed systems. Collaborate with teams to promote inclusivity and strong communication.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

The Senior Backend Engineer will develop the Payroll product, overseeing the entire development cycle from design to deployment, in a microservices architecture.

Design, build, and maintain scalable backend services and APIs for commerce workflows using Python/Django. Improve reliability, performance, and observability, operate AWS deployments, work with PostgreSQL and event-driven architectures (SNS/SQS), modernize legacy systems, and support CI/CD, testing, and production troubleshooting.

The Senior Backend Engineer II will design, build, and maintain backend services for financial workflows, collaborating with product and engineering teams to enhance system reliability and performance.

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.

The Senior Software Engineer will design, build, and maintain distributed backend services to enhance patient care workflows at Ro. Responsibilities include improving system performance and collaboration across various teams to ensure quality and compliance.

As a Senior Backend Engineer, lead the engineering efforts to develop and maintain backend systems, drive best practices and architecture, and mentor other engineers.

The Backend Product Engineer will enhance the Radar platform, manage API traffic, engage with customers, and work across various backend technologies to drive product success.

Nourish seeks a Senior Backend Engineer to design, build, and maintain backend services, collaborate with teams, and enhance engineering processes. Responsibilities include product development, codebase management, and driving improvements for scalability.

The Senior Backend Engineer will enhance data integration infrastructure, manage internal systems, and collaborate with teams to execute engineering tasks for growth initiatives.

As a Senior Software Engineer, you'll own backend systems, mentor team members, and collaborate with product and design to build user-focused solutions.

Design, build, test, and maintain backend services and APIs for an insurance platform. Integrate external services and data providers, improve system stability, performance, and scalability, participate in architecture discussions, mentor teammates, and support internal tooling and deployment practices.

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 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.

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.

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.

As a Senior Software Engineer, you will enhance data pipelines, integrate with EHR systems, and mentor fellow engineers while ensuring scalable and reliable solutions for health technology.

Lead design and delivery of high-throughput, fault-tolerant backend systems for Aladdin. Build microservices, streaming architectures, and distributed applications; collaborate with product and global teams; apply test-driven development, perform code reviews, and provide production support while mentoring engineers and driving technical roadmap.