Fullstack Developer with React
Sii PolandKatowice, Górnośląsko-Zagłębiowska Metropolia, Polska23 days ago
Job descriptionAt least 5 years of experience as a Frontend Developer Very good knowledge of React and TypeScript Good knowledge of Python or Golang Experience with component architecture and application state management Willingness to learn and work with backend systems Understanding of UX / UI principles and attention to interface usability Ability to design and integrate RESTful APIs Self‑motivation and initiative Residence in Poland required and fluency in the Polish language Great Place to Work Solid financial situation Contracts with the biggest brands Center of internal trainings Many experts you can learn from Open and accessible management team Profit sharing Passion Sponsorship program Regular integration events and trips Comfortable and well‑equipped offices MySii app Medical care
Join Sii Poland as a Fullstack Developer and participate in the development of an engineering portal – a key web platform supporting the daily work of all technical teams in a large US‑based technology organization. The portal integrates with Kubernetes‑based infrastructure and CI / CD systems, enabling tools for transparency, automation, and operational efficiency. The project is implemented in partnership with an engineering team that provides cutting‑edge solutions in cloud storage, file synchronization, and team collaboration. The platform is used by millions of users worldwide, and the development of internal tools has a direct impact on the quality and reliability of the entire technology ecosystem.
Your tasks
- Design and develop modern user interfaces using React and TypeScript
- Co‑create APIs and design intuitive workflows for engineering teams (backend integration)
- Work on frontend architecture, state management, performance optimization, component development, and UI scalability
- Proactively improve UX / UI by simplifying complex technical processes
Requirements
Benefits For You
Job no. -7UUWA
#J-18808-Ljbffr
Create a job alert for this search
Fullstack Developer • Katowice, Górnośląsko-Zagłębiowska Metropolia, Polska
Related jobs
- Promoted
React Developer with MobX – marine industry
Sii Sp. z o.o.Katowice, Silesian, Poland We are looking for a Front-End Developer to join our team and work on the client for data monitoring in navigational simulation software.
In this role, you will develop complex interfaces, integrate...Show moreLast updated: 30+ days ago
- Promoted
React JavaScript Developer
NEATsoftTarnowskie Góry, powiat tarnogórski, Polska NEATsoft, a leading Software Development company with an employee size of 11-50 members, is seeking a React JavaScript Developer to join our team.
We place high value on attributes such as accessibi...Show moreLast updated: 30+ days ago
- Promoted
React Native Developer
Sii Sp. z o.o.Katowice, śląskie, Polska Jesteśmy zespołem pasjonatów technologii, którzy tworzą nowoczesne aplikacje mobilne o globalnym zasięgu.Pracujemy nad projektami, które mają realny wpływ na użytkowników – od fintechów, przez e-co...Show moreLast updated: 30+ days ago
- Promoted
Senior Full Stack Developer @ Connectd
ConnectdGliwice, Poland Connectd empowers organisations and individuals to transition into and succeed in the future of work - we're building the operating system for fractional working.
Sifted100’s fastest growing start-u...Show moreLast updated: 20 days ago
- Promoted
React Developer z Node.js
Sii Sp. z o.o.Katowice, śląskie, Polska Dołącz do jednego z naszych zespołów i rozwijaj wewnętrzną platformę – centralny katalog API w organizacji bankowej.Projekt oparty jest na Backstage, open-source’owym portalu developerskim tworzony...Show moreLast updated: 20 days ago
- Promoted
Full Stack Developer (Azure / IoT / .NET / Angular)
Michael PageZawiercie, śląskie, Polska Full Stack Developer (Azure / IoT / .The hiring company is a well-established, medium-sized organisation within the industrial / manufacturing sector.
It is known for its commitment to implementing adv...Show moreLast updated: 1 day ago
- Promoted
Senior React Native Developer
Edge One Solutions Sp. z o.o.Katowice, śląskie, Polska Nasz klient to to jeden z globalnych liderów w dziedzinie technologii grzewczych, chłodniczych i zrównoważonego zarządzania energią.
Z pomocą swoich produktów IoT wspierają klientów w optymalizacji ...Show moreLast updated: 10 days ago
- Promoted
Senior Full-Stack Engineer (.NET + React)
APPSTREAM STUDIO LLCKatowice, Silesian, Poland Aiventic is an AI copilot for field service professionals.It helps technicians diagnose equipment issues, identify the right parts, and perform repairs faster and more accurately.The platform combi...Show moreLast updated: 3 days ago
- Promoted
React Native Developer @ Britenet
BritenetKatowice, Poland Project for international client from the heating, ventilation, and air conditioning (HVAC) technology industry.The project involves the development of a cross-platform mobile application (iOS + An...Show moreLast updated: 12 days ago
- Promoted
Fullstack Developer (Python + React) @ Euvic S.A.
Euvic S.A.Katowice, Poland Programista Java będzie odpowiedzialny za projektowanie i rozwój aplikacji e-commerce B2B we współpracy z zespołami międzyfunkcyjnymi.
Obejmuje to zapewnienie skalowalności, bezpieczeństwa i standar...Show moreLast updated: 2 days ago
- Promoted
Fullstack Developer Nextjs
Vaillant Group Business ServicesKatowice, PL Join us in developing an innovative e-Shop platform that will serve customers across 13 countries, transforming the way they experience Vaillant's digital solutions.
You will be part of a dynami...Show moreLast updated: 6 days ago
- Promoted
Senior React Native Developer – IoT
Sii Sp. z o.o.Katowice, śląskie, Polska Dołącz do zespołu tworzącego mobilną aplikację IoT służącą do sterowania systemami ogrzewania w budynkach mieszkalnych i komercyjnych.
Nasze rozwiązanie łączy się z urządzeniami grzewczymi poprzez R...Show moreLast updated: 10 days ago
- Promoted
Senior React Native Engineer
Northmill Bank AB S.A. Oddział w PolsceKatowice, Silesian, Poland As a Senior React Native Engineer, you’ll join a cross-functional product team and play a key role in shaping and building our mobile and web banking applications.
You’ll work hands-on with React Na...Show moreLast updated: 25 days ago
- Promoted
React native developer @ britenet
BritenetKatowice, Śląskie, Polska Project for international client from the heating, ventilation, and air conditioning (HVAC) technology industry.The project involves the development of a cross-platform mobile application (i OS + A...Show moreLast updated: 6 days ago
- Promoted
Fullstack Developer (React. Node.js)
ING Hubs PolandKatowice, Górnośląsko-Zagłębiowska Metropolia, Polska Fullstack Developer (React, Node.ING Hubs Poland is hiring a Fullstack Developer (React, Node.This role involves designing, building, and maintaining features for the platform, an open‑source sol...Show moreLast updated: 1 day ago
- Promoted
Fullstack Developer with React
Sii Sp. z o.o.Katowice, śląskie, Polska Dołącz do Sii jako Fullstack Developer i weź udział w rozwoju portalu inżynieryjnego – kluczowej platformy webowej wspierającej codzienną pracę wszystkich zespołów technicznych w dużej organizacji ...Show moreLast updated: 30+ days ago
- Promoted
FullStack Developer @ i2asolutions
i2asolutionsCzęstochowa, Poland You will be part of a great, friendly team of devs, who work and play together.Collaborate directly with the Product Manager and CEO.
In this role, you will be responsible for developing, enhancing,...Show moreLast updated: 25 days ago
- Promoted
Fullstack Java Developer with React
Sii PolandKatowice, Górnośląsko-Zagłębiowska Metropolia, Polska Join the Sii team as a Fullstack Java Developer working on the platform's central environment for managing PCB design data such as designs, libraries, simulation results and documents.The platform ...Show moreLast updated: 30+ days ago