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Full Stack Engineer

Job in New York, New York County, New York, 10261, USA
Listing for: Portra
Full Time position
Listed on 2026-10-18
Job specializations:
  • Software Development
    Full Stack Developer, React.js
Salary/Wage Range or Industry Benchmark: 110000 - 160000 USD Yearly USD 110000.00 160000.00 YEAR
Job Description & How to Apply Below

We're hiring a versatile Fullstack Engineer to make an impact across Harbor.ai. You'll rotate between different projects — Harbor Platform (our core app), Testing Infrastructure, and helping launch New Products and Initiatives. You'll work end-to-end across a microservices architecture with React + Type Script on the frontend and Python + Flask on the backend. Quality is not an afterthought here — you'll own testing as a first-class responsibility: designing and maintaining automated test suites, improving our frameworks, and raising the reliability bar across the platform.

We're looking for someone who thrives in fast-changing environments, can ramp quickly, and enjoys changing projects on a need basis.

What You'll Do
  • - Build and maintain React 18 + Type Script applications, including microfront ends via module federation, reusable UI components, and state management with Tan Stack React Query
  • - Build and maintain Flask REST APIs across relational, document, graph, and caching databases; develop async task pipelines; optimize performance through caching and query design; deploy via Docker and standard WSGI tooling
  • - Maintain and expand the integration test framework; write automated test suites for API endpoints; manage test data fixtures; monitor and improve coverage across frontend and backend; debug flaky tests
Requirements
  • - Minimum 2 years building production fullstack applications, and systems to maintain them
  • - Master's degree in Computer Science, Engineering, or equivalent hands-on experience
  • - Demonstrated expertise deploying and scaling applications on a major cloud provider
  • - Hands-on experience containerizing applications with Docker and orchestrating with Kubernetes
  • - Track record of designing, shipping, and supporting API-driven architectures
  • - Proficiency building automated deployment pipelines and continuous integration workflows
Who You Are

You thrive in fast-changing environments, ramp quickly, and enjoy rotating across projects as needs shift. You want broad surface area, real ownership, and a role that keeps you learning with tremendous impact across platform engineering, testing infrastructure, and new product launches.

Join the team at Portra

We review every application personally.

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