Frontend Engineer (Mid) – TypeScript/React, Remote

MasterBorn; Polska; Hybrid; PLN 100,000 - 167,000; Full time

Benefits offered by this job

Annual training budget

Multisport

Luxmed

Cafeteria Platform

Tech-talks

Learning sessions

Job summary

MasterBorn is seeking a Frontend Developer to build and improve applications for US clients across FinTech, SportsTech, MedTech, and more. Proficiency in TypeScript, React, and Node.js is essential, with a focus on frontend excellence and scalable design.

You will work on AI-assisted development, ensure code quality, and collaborate with cross-functional teams. The role offers remote or hybrid/onsite options within the Polish time zone and long-term collaboration.

Qualifications

• At least 2 years of commercial experience building and maintaining web applications.
• Strong JavaScript and TypeScript fundamentals with HTML, CSS, and browser behavior.
• Experience delivering features with user interactions, forms, and API integration.
• Experience organizing frontend code into maintainable components and managing state.
• Understanding of HTTP, client–server communication, authentication, and error handling.

Responsibilities

• Develop and maintain applications with ownership of defined features from requirements to deployment.
• Build responsive, accessible interfaces with attention to design details and performance.
• Implement backend changes within established patterns, with review support for complex areas.
• Collaborate with designers, QA, and product owners to meet client needs and propose solutions.
• Participate in code reviews and document key decisions to share knowledge.

Skills

JavaScript

TypeScript

React

HTML

CSS

Git

CI/CD

AI-assisted development

Tools

GitHub

Jira

Slack

Google Workspace

FigJam

Job description

MasterBorn is seeking a Frontend Developer to build and improve applications for US clients across FinTech, SportsTech, MedTech, and more. Proficiency in TypeScript, React, and Node.js is essential, with a focus on frontend excellence and scalable design.

You will work on AI-assisted development, ensure code quality, and collaborate with cross-functional teams. The role offers remote or hybrid/onsite options within the Polish time zone and long-term collaboration.