Top Senior Full-Stack Engineer Jobs in NYC, NY

The Senior Full-Stack Engineer will own app navigation and surfaces, collaborate with cross-functional teams, develop features with TypeScript, React Native, and Ruby on Rails, mentor junior engineers, and participate in on-call duties.

The Senior Full Stack Engineer will design and develop features for the platform, maintain code, and collaborate across teams to improve engineering processes.

The Senior Fullstack Engineer will build and manage enterprise authentication systems, improve user session management, ensure security compliance, and support internal API usage across services, while enhancing performance and reliability.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.

Build and scale AI agent platform and tools, prioritize feature development, and manage backend services and integrations with CRMs.

As a Senior Full Stack Engineer, you will design and develop scalable APIs, integrate financial data, and enhance user experience in a collaborative environment.

Design, develop and deliver full stack applications using Java, AngularJS, and SQL, while collaborating in engineering pods through the software development lifecycle.

As a Senior Fullstack Engineer, you'll contribute to backend development for Toast's New Ventures team, collaborating on architecture and launching MVPs while addressing unmet operator needs.

The Senior Full-Stack Engineer will build and maintain scalable backend services and frontend applications while collaborating with teams to deliver high-quality solutions in AI-driven health and wellness.

The Senior Full-Stack Engineer will manage client relationships, design integration solutions, and ensure seamless delivery and optimization of technical workflows, while leveraging AI for efficiency.

The Software Engineer will architect and build front-end experiences, collaborating with experts to design solutions and ensuring high-performance user interfaces.

As a Full Stack Developer, you'll build cloud-native applications, develop scalable APIs, and implement CI/CD processes, while collaborating with cross-functional teams.

The Full Stack Engineer will design applications, enhance existing architecture, improve user experience, and utilize AI tools in a hybrid environment.

Responsible for scaling the consumer finance platform, improving API performance, integrating with third-party APIs, and enhancing user experience for millions of users.

The Senior Lead Software Engineer will lead a team in developing a messaging platform and cloud-based solutions, utilizing various programming languages and cloud services.

Lead diverse technology projects and a team of developers in creating solutions that meet regulatory needs. Mentor, code, and deliver cloud-based solutions for financial empowerment.

The Senior/Staff Full Stack Engineer will develop AI-driven products, enhance the advisor portal's functionality, and ensure system reliability using best practices in software and AI development.

As a Full Stack Software Engineer, you will build and improve user-facing products, collaborate with cross-functional teams, and design robust APIs.

As a Founding Senior Software Engineer at EliseAI, you will develop both frontend and backend applications, design APIs, and work closely with teams to build features that enhance user experience. The role requires ownership of projects and driving product development with a focus on efficiency and scalability.

The Senior Full Stack Engineer will build and scale the performance marketing platform, focusing on both front-end experiences and backend APIs, while collaborating cross-functionally and mentoring junior engineers.

Lead full-cycle projects impacting millions and collaborate with product and UX teams to define requirements and execute development plans.

As a Senior Fullstack Engineer, you'll develop and maintain scalable APIs and web applications, engage with customers to meet their needs, and collaborate on product features to improve Layer Health's applications.

The Senior Full-Stack Developer will design, build, and maintain AIO Logic's cloud-based AXIS platform, utilizing React and Java/Spring Boot to deliver software solutions for complex financial workflows, collaborating with cross-functional teams, and mentoring junior developers.

As a Senior Software Engineer at Braze, you'll design and implement scalable product components using TypeScript and JavaScript, collaborating with cross-functional teams. You'll influence product strategy while ensuring customer success through robust software engineering practices.

The Full Stack Senior Software Engineer will design, implement, and ship features across frontend and backend systems, enhancing the Grow Therapy platform. Responsibilities include lifecycle ownership of work, improving core systems, resolving production incidents, writing maintainable code, and collaborating with cross-functional teams.