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Junior Frontend Developer (React.js)

3 weeks, 3 days ago
Poland
Full-time
Junior
Frontend Engineer / Web Developer
Software Development
Agile AWS CI/CD Docker GitHub JavaScript Jest JIRA Next.js Node.js React Remix REST API Scrum Serverless SvelteKit TypeScript UX Design
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MasterBorn Group

MasterBorn Group

MasterBorn Group: World-class experts building secure, cost-effective software for American startups with a focus on modern web apps.

Internet Software & Services
51-250
Founded 2016
View All Jobs 10

Description

  • Develop and maintain React.js applications.
  • Implement responsive interfaces with strong attention to design and user experience.
  • Write clean, maintainable code according to team standards.
  • Participate in constructive code reviews.
  • Collaborate with designers, developers, QA, and product owners to deliver features.
  • Integrate frontend applications with REST APIs and contribute to backend work.
  • Document work and contribute to the team knowledge base.
  • Build technical skills with mentor support in an Agile/Scrum environment.

Requirements

  • At least 1 year of commercial web development experience.
  • Strong JavaScript fundamentals and knowledge of TypeScript.
  • Hands-on experience with React.js, including hooks and state management.
  • Experience integrating REST APIs and configuring basic build tools.
  • Ability to use AI coding assistants critically for learning and productivity.
  • Interest in backend technologies and progression toward full-stack development.
  • English proficiency at B2+ level and Polish proficiency at C1 level.
  • Comfort working collaboratively, receiving feedback, and communicating proactively.
  • Experience with modern meta-frameworks such as Next.js, Remix, SvelteKit, or TanStack Start (preferred).
  • Knowledge of AWS/serverless services, Docker, CI/CD, Jest, or React Testing Library (preferred).

Benefits

  • PLN 6,000–9,000 + VAT on B2B or PLN 6,000–7,400 gross on UZL.
  • 100% remote, hybrid, or onsite work options within the Polish time zone.
  • Flexible hours, full-time employment, and a long-term contract.
  • Paid days off.
  • Multisport and Luxmed benefits.
  • Learning sessions, education budget, and mentorship.
  • Work equipment including an Apple MacBook Pro.

Interested in this position?

Apply directly on the company website

Apply Now

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