Senior Full Stack Engineer (TypeScript/Node.js)

Senior Software Engineer- Full Stack (TypeScript/Node.js)

Harris Allied New York, New York, United States (On-site)

Save Apply Senior Software Engineer – Full Stack (TypeScript / Node.js)

Location

New York City (Hybrid)

We're partnering with a well-funded AI software company that's transforming how organizations manage complex, document-intensive business processes. Their SaaS platform leverages AI, workflow automation, and modern cloud technologies to streamline operations from opportunity identification through execution.

Backed by significant venture funding and experiencing rapid customer growth, they're looking for a Senior Software Engineer – Full Stack (TypeScript / Node.js) to help build and scale the next generation of their AI-powered platform.

What You'll Do

• Design, develop, and deliver end-to-end product features using TypeScript across both frontend and backend applications.
• Build modern, responsive user experiences using React and Next.js.
• Develop scalable backend services and APIs using Node.js.
• Architect reliable, high-performance systems that power AI-driven workflows and document-intensive applications.
• Own features from concept through production, partnering closely with Product, Design, and Engineering.
• Build reusable components, shared services, and engineering frameworks that accelerate development.
• Improve application performance, scalability, reliability, and observability.
• Continuously incorporate customer feedback to enhance usability and deliver exceptional user experiences.
• Contribute to architectural decisions, engineering best practices, and technical standards as the platform continues to scale.

Required Qualifications

• 3+ years of professional software engineering experience building production applications.
• Strong expertise with TypeScript and Node.js.
• Experience building modern web applications using React and Next.js.
• Experience designing and consuming RESTful APIs and distributed services.
• Strong understanding of software architecture, object-oriented design, data structures, algorithms, and engineering best practices.
• Experience developing and supporting scalable, cloud-native applications.
• Excellent problem-solving skills with a passion for building elegant, maintainable software.
• Strong communication and collaboration skills with the ability to thrive in a fast-paced, agile environment.

Preferred Qualifications

• Experience developing AI-enabled or LLM-powered applications.
• Experience with workflow orchestration technologies such as Temporal.
• Experience with AWS or other cloud platforms, Docker, Kubernetes, and CI/CD pipelines.
• Experience integrating with third-party APIs and enterprise systems.
• Startup or high-growth SaaS experience.
• Passion for building intuitive, customer-focused products.

Technology Stack

• TypeScript, Node.js, React, Next.js, Temporal, AWS, REST APIs, Docker, Kubernetes, CI/CD, AI / Large Language Models (LLMs)

Why You'll Love This Opportunity

• Build software that solves meaningful, real-world business challenges.
• Own features from architecture through deployment and production support.
• Work alongside a highly collaborative and experienced engineering team.
• Help shape the architecture of a rapidly growing AI platform.
• Competitive compensation, equity, comprehensive benefits, and significant opportunities for career growth.
• Make a measurable impact in a fast-growing company where engineering excellence, innovation, and ownership are highly valued.