Senior React Developer

ITConnect; Warszawa; Hybrid; PLN 150,000 - 190,000; Full time

Job summary

Sunray is seeking a Frontend Developer to join the EFM UI administration UI project (Investment Fund Orders’ processing). You will collaborate with Backend Developers, Business Analysts, Test Engineers and EFM users to clarify requirements, investigate issues and deliver solutions.

Responsibilities include developing and maintaining the redesigned EFM UI with new technologies, supporting preparations and rollouts of upcoming releases, troubleshooting, bug fixing and ensuring code quality,

Job description

You will join the Sunray team and work together with the current Frontend Developer on the development, maintenance and support of the EFM UI application (Investment Fund Orders’ processing administration UI).

• Contributing to ongoing development of the redesigned (new technologies!) new EFM UI and implementation of new business requirements.
• Supporting 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 to ensure continuity while the current Frontend Developer is unavailable.
• Improving and maintaining EFM UI code quality, including remediation of identified vulnerabilities and framework dependencies.
• Collaborating closely with Backend Developers, Business Analysts, Test Engineers and EFM users to clarify requirements, investigate issues and deliver solutions.
• Participating in Agile team activities, including backlog refinement, sprint planning, reviews and production support activities.