Mid Frontend Developer (React.js & Next.js) - open source

At Blazity, we are a team of React.js and Next.js experts focused on building API-first products and contributing to the open-source ecosystem. We collaborate closely with clients as long-term technology partners, but we also invest heavily in our own internal OSS initiatives.

Looking for your next adventure? As it’s often said, you must gather your party before venturing forth – why not join ours? 😊

We’re looking for a Mid Frontend Developer who’s passionate about React, Next.js, and open source. Someone who already contributes to OSS (or wants to grow in that direction) and would love to start their journey at Blazity by joining our internal open-source teams.After the onboarding period and OSS contribution phase, you’ll move to one of our client projects—bringing your experience and deep understanding of modern frontend practices with you.

Our requirements

• 3–5 years of commercial experience with React and Next.js.

• Solid knowledge of Next.js (pages router and app router) and TypeScript.

• Experience working with headless CMS (Sanity is a plus).

• Strong communication skills and the ability to work directly with client.

• A proactive and ownership-driven mindset.

• Excellent english skills (min. C1).

• Strong interest in open-source development (existing contributions are a big plus!).

Scope of responsibilities

Open Source phase:

• Contribute to Blazity’s internal OSS initiatives.

• Build new features, improve documentation, fix issues, and collaborate on roadmap planning.

• Work closely with other OSS contributors and maintainers.

Client phase:

• Develop and maintain high-performance frontend solutions in Next.js and TypeScript.

• Act as a consultant in communication with client stakeholders.

• Collaborate with internal team members (Junior/Mid Developer, PM, Analyst).

What we offer

We may not have fruit Thursdays or online meditation sessions, but you might appreciate:

• 29 paid days off

• Health insurance fully covered by us

• Sports card fully covered by us

What Makes Us Special?

📈 Our team has a genuine impact on the company’s decisions and direction.

✨ No bureaucracy – we keep things simple and efficient.

🗺️ Remote work from Poland

⏳ Flexible working hours – fit your schedule to your life.

🍕 Fun social events to connect with your teammates.

🤝 We value feedback and foster an open, supportive environment.

Salary ranges

B2B: 75-120 PLN net+VAT / h 

Location

100% remote from Poland