Quick Summary
Javascript Developer (React) Seniority: Medior,
Responsibilities
~1 min read- →3+ years of experience (medior level)/ 5+ years of experience (senior level) in developing web applications
- →Proficient in JavaScript frameworks, with a strong emphasis on React
- →Practice in Typescript
- →Understanding of CSS frameworks Material-UI
- →Solid knowledge of frontend state management tools (e.g., Redux, Context API)
- →Experience with testing frameworks and libraries (e.g., Jest, React Testing Library, Playwright/Cypress)
- →Experience with API integration patterns and authentication mechanisms (JWT, OAuth)
- →Understanding of API technologies to improve and facilitate efficient client-server interactions
- →Understanding of techniques and tools for improving website speed and performance
- →Proficient use of Git for code versioning
- →Engagement in code review and collaborative programming
- →Familiarity with Scrum
- →Experience in direct client cooperation and demonstrating your thought process
- →Team player attitude and problem-solving approach
- →Openness to business trips and face-to-face meetings with the team
- →Command of English and Polish on B2+ level to easily communicate with both clients and the team
🚀 Nice to haves:
- →Familiarity with Tailwind CSS and CSS-in-JS solutions for responsive design
- →Experience in developing accessible web applications (WCAG compliance) and implementing internationalization (i18n)
- →Experience with module bundlers (i.e. Webpack, Vite)
- →Practice in Test-Driven Development (TDD)
- →Understanding of CI/CD processes (GitHub Actions, Jenkins, Travis CI)
- →Knowledge of software design patterns
- →Participated in Event Storming sessions and collaborated with a backend built on DDD principles
- You can boost your skills and potential in the type of products that fit you best. We’ve cut product development for stages (prototype, MVP, product-market fit, and scaling).
- Agile, scrum & lean startup are not just buzzwords – no project managers, a scrum master in every team, and iterative product delivery are standard at Boldare.
- Self-organization – there are no managers in Boldare, so the teams organize their work by themselves. You’ll be engaged in building the product roadmap, sprint planning, etc.
- Direct impact on the product & tech stack – our scrum teams are responsible not only for performing tasks but also for proposing technical solutions. You’re the expert here, so we trust in your tech recommendations.
- Clients are partners – we really care about our relationships with them, and we cooperate as equal partners. There will be no proxies in between your team and the client, so forget about waiting ages for the answer to a simple question 😉
- Face-to-face meetings with clients and the team (which are highly valuable for us). Regular business trips are standard at Boldare. With some partners we meet once a month, with others every six months. The frequency varies, but we care for all team members to participate in onsite meetings.
What We Offer
~1 min readBoldare is an Agile-powered company with nearly two decades of international experience in product development and consulting. The company helps clients redefine their industries by building with them the products their users want. Starting in 2004, Boldare now has nearly 200 talents spread across Europe. They have built over 300 digital products for clients around the globe – Western and North Europe, the United Kingdom, North America, the Middle East, Southeast Asia, and Australia.
Sounds interesting?
Send us your application, we’re waiting for you! :)
Location & Eligibility
Listing Details
- First seen
- March 26, 2026
- Last seen
- April 27, 2026
Posting Health
- Days active
- 32
- Repost count
- 1
- Trust Level
- 28%
- Scored at
- April 28, 2026
Signal breakdown

We exist to help our clients redefine their industries by building with them the products their users want.
View company profilePlease let Boldare know you found this job on Jobera.
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