Praca w miastach:Praca IT Warszawa•Praca IT Kraków•Praca IT Wrocław•Praca IT Szczecin•Praca IT Poznań•Praca IT Lublin•Praca IT Katowice•Praca IT Bydgoszcz•Praca IT Łódź•Praca IT Białystok•Praca IT Toruń•Praca IT Gdańsk
Stanowiska:Grafik komputerowy praca•Tester gier praca•Programista praca•Tester oprogramowania praca•Frontend Developer praca•Data scientist praca•Tester manualny praca•Tester praca•Analytics praca•Tester aplikacji praca•Programista java praca•Web developer praca
Technologie i narzędzia:Python praca•Cyberbezpieczeństwo praca•Java praca•Bazy danych praca•Cisco praca•C++ praca•Javascript praca•SQL praca•Business Intelligence praca•Delphi praca•Wordpress praca•Testowanie aplikacji praca•C# praca•PHP praca
Specjalizacje:Backend praca•Devops praca•Frontend praca•Full-stack praca•GameDev praca•Mobile praca•Embedded praca•Architecture praca•QA/Testing praca•Security praca•AI/ML praca•Big data science praca•Helpdesk praca•IT admin praca•Agile praca•Product Management praca•Project Management praca•UX/UI praca•Business analytics praca•SAP & ERP praca•System analytics praca•PO/PM praca•Scrum master praca•Analityka praca•Data analytics & BI praca
Offer summary
(Summary generated by AI based on the full job description)
The project is an administration UI for investment fund order processing in the financial domain. Required stack includes React.js (v18+), TypeScript, React Query and tools Material UI, Tailwind, React Testing Library with a hook-oriented approach. Responsibilities cover development and maintenance of the redesigned app, release preparation and rollouts, production support, bug fixing and code quality/remediation. Rate up to 130 PLN/h net + VAT (B2B).
Senior Frontend (React) Developer
Company: OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
from: 22 September 2026
to: 22 October 2026
130 - 130 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
React.js
TypeScript
Tailwind
Hook
Optional technologies
Java
SpringBoot
Jenkins
JavaScript
Operating system
Windows
Our requirements
- React.js (v18 or higher)
- React Query
- TypeScript
- React Testing Library
- Material UI
- Tailwind
- React Form
- Hook-oriented programming
- Strong communication skills
Optional
- Basics of Java and SpringBoot
- Other TanStack libraries
- Jenkins
- General JavaScript proficiency
Your 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.
About the project
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.
Rate: up to 130 PLN/h net + VAT (B2B)
Work Model: Hybrid (3 days per week from the office)
Location: Warsaw, Poland
Engagement: Full-time (40 hours/week)
This is how we organize our work
This is how we work
you focus on a single project at a timeyou have influence on the productyou focus on product developmentagile
What we offer
- 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.
Benefits
- remote work opportunities
- integration events
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Optiveum is acting as a sourcing partner for this role. You will be signing a cooperation agreement directly with our partner—a renowned IT contracting company with nearly 20 years of presence on the market.
The end client operates in the international public, defense, or government administration sector, leading large-scale, multi-million euro digital transformation projects.
This is how we work
Senior Frontend (React) Developer
130–130 zł / hr. (B2B)
I apply to:
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa, Masovian
Pracodawca zbiera zgłoszenia przez swój system.
Przejdziesz na zewnętrzny formularz.
By clicking "Aplikuj" you confirm that you've read and accepted our Terms and Conditions.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Need more information?
- Make sure the body of the offer doesn’t already include what you’re looking for.
- Ask a question if you need more information you’re interested in.
- We’ll forward your question to the employer and aim to provide a response within 3 business days.