Junior React Frontend Developer
REMOTE]
About us :
We are an international, Polish-American company called 300Brains , operating in the area of Information Technology with the aim of supporting international companies, primarily startups, in the implementation of their brilliant ideas.
We're looking for a Junior React Developer to help shape modern, responsive frontends for a fast-evolving insurance platform built on DLT. You'll work in a cross-functional Scrum team delivering frontend components and client-specific UI features.
What you’ll do :
Develop and maintain UI components using React
Implement responsive, accessible, and high-quality user interfaces
Work closely with backend developers and designers
Integrate frontend components with RESTful APIs
Participate in peer reviews, QA, and sprint ceremonies
Required skills :
1–2 years of commercial experience with React (JavaScript / ES6+)
Solid HTML5, CSS3, and responsive design understanding
Experience writing unit tests (e.g., Jest, Testing Library)
Good grasp of RESTful API integration
Proficient English communication skills (verbal and written)
Nice to have :
TypeScript familiarity
Experience with state management libraries (e.g., Redux, Zustand)
Previous work with agile development processes
What we offer :
20 days of paid vacation annually – take your well-deserved break
Agile training program with a certified diploma from 300Brains
Personal training & conference budget to grow your skills
Work with international professionals on cutting-edge projects
We support your passions – we’ll help finance your hobby
Work your way – remote work!
Access to a comprehensive medical and sports benefits package
Do IT Smart!
Frontend Developer • Warszawa, Polska