Senior Frontend (React) Developer

OPTIVEUM sp. z o.o. • Capon Bridge, WV

1d • PLN 130 • Hybrid

About The Position

We are Optiveum – your recruitment and contracting partner. We are currently looking for a Senior React Developer to join the team of our client, a renowned organization operating in the financial and investment sector. In this role, you will work alongside the current Frontend Developer on the development, maintenance, and support of an Investment Fund Orders’ processing administration UI application. Please note: Optiveum is the recruitment and contracting party for this role. You will be signing the cooperation agreement directly with us.

Requirements

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

Nice To Haves

• Basics of Java and SpringBoot
• Other TanStack libraries
• Jenkins
• General JavaScript proficiency

Responsibilities

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

Benefits

• Transparent cooperation—Optiveum will be your dedicated contracting partner.
• Seamless B2B contract setup and ongoing support.
• Opportunity to work on a modern tech stack within a complex, financial-domain project.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed