Senior React Developer

emagine; Warszawa; Hybrid; PLN 182,000 - 259,000; Part time

Job summary

emagine is seeking a Frontend Developer to join the Sunray team in a hybrid role (3 days per week in the office) to develop and maintain the EFM UI for Investment Fund Orders processing. Key skills: React.js, Typescript, and modern UI frameworks.

You will contribute to redesigns, support upcoming releases, fix bugs, and collaborate with Backend Developers, Business Analysts and Test Engineers in an Agile environment to deliver robust UI solutions.

Qualifications

• Proficiency in React.js (v18+).
• Experience with TypeScript and modern UI frameworks.
• Familiarity with testing libraries and UI tooling.

Responsibilities

• Contributing to the ongoing development of the redesigned EFM UI and implementing new business requirements.
• Supporting the preparation, stabilization, and production rollout of upcoming EFM UI releases.
• Providing application support, troubleshooting, and bug fixing for existing and newly delivered functionality.
• Taking over day-to-day EFM UI support responsibilities during January and February 2027.
• Improving and maintaining EFM UI code quality, including remediation of identified vulnerabilities and framework dependencies.
• Collaborating with Backend Developers, Business Analysts, Test Engineers, and EFM users to clarify requirements and deliver solutions.
• Participating in Agile team activities, including backlog refinement, sprint planning, reviews, and production support activities.

Skills

React.js

Typescript

React Query

React Testing Library

Material UI

Tailwind

React Form

Hook oriented programming

Good communication

Tools

Jenkins

Job description

General info:
Model of work: hybrid (3x per week work from office)

General info:
Model of work: hybrid (3x per week work from office)
Type of contract: B2B contract
Rate: 160 PLN net + vat/ hour
Summary
The consultant will join the Sunray team, contributing expertise as a Frontend Developer in the development, maintenance, and support of the EFM UI application focused on Investment Fund Orders' processing administration. Key skills include advanced proficiency in React.js, Typescript, and a strong grasp of modern UI frameworks.
Main Responsibilities
Key responsibilities include:

• Contributing to the ongoing development of the redesigned EFM UI and implementing new business requirements.
• Supporting the preparation, stabilization, and production rollout of upcoming EFM UI releases.
• Providing application support, troubleshooting, and bug fixing for existing and newly delivered functionality.
• Taking over day-to-day EFM UI support responsibilities during January and February 2027.
• Improving and maintaining EFM UI code quality, including remediation of identified vulnerabilities and framework dependencies.
• Collaborating with Backend Developers, Business Analysts, Test Engineers, and EFM users to clarify requirements and deliver solutions.
• Participating in Agile team activities, including backlog refinement, sprint planning, reviews, and production support activities.
  

Key Requirements

• React.js (v18 or higher)
• React Query
• Typescript
• React Testing Library
• Material UI
• Tailwind
• React Form
• Hook oriented programming
• Good communication skills
  

Nice to Have

• Basics of Java and SpringBoot
• Other Tanstack libraries
• Jenkins