Full-Stack Engineer: Platform & Testing Impact

Portra; New York (NY); Hybrid; USD 110,000 - 160,000; Full time

Job summary

Portra is seeking a versatile Fullstack Engineer to influence Harbor.ai across multiple projects. You will work end-to-end on a microservices stack with React + TypeScript on the frontend and Python + Flask on the backend, driving testing as a first-class responsibility.

You will rotate between Harbor Platform, Testing Infrastructure, and new product initiatives, maintaining quality, and shipping cross-functional features in a fast-changing environment.

Qualifications

• Minimum 2 years building production fullstack applications.
• 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 CI/CD workflows.

Responsibilities

• Build and maintain React 18 + TypeScript applications, including microfrontends via module federation, reusable UI components, and state management with TanStack 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.

Skills

Fullstack development

React

TypeScript

Python

Flask

API design

CI/CD

Testing automation

Docker

Kubernetes

Education

Master's degree in Computer Science or Engineering

Tools

Docker

Kubernetes

TanStack React Query

REST/GraphQL APIs

Module Federation

Job description

Portra is seeking a versatile Fullstack Engineer to influence Harbor.ai across multiple projects. You will work end-to-end on a microservices stack with React + TypeScript on the frontend and Python + Flask on the backend, driving testing as a first-class responsibility.

You will rotate between Harbor Platform, Testing Infrastructure, and new product initiatives, maintaining quality, and shipping cross-functional features in a fast-changing environment.