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Senior Frontend Developer

Senior Frontend Developer

BarterThe Randstad, Netherlands, Netherlands
4 dagen geleden
Functieomschrijving

About the Role :

Join our growing engineering team as a Senior Frontend Developer where you'll drive technical excellence across our web and mobile platforms. This hands-on technical leadership role is perfect for developers who excel at solving complex UI challenges and mentoring teams, without the overhead of formal people management.

You'll own end-to-end delivery of user-facing features, from design collaboration to production deployment. As our frontend technical leader, you'll shape component architecture, establish best practices, and ensure exceptional user experiences across all platforms.

Barter – Redefine how brands grow

Barter is transforming the influencer and creator economy from our bases in the Netherlands and Portugal. We’re the platform where brands and creators connect for authentic, cashless collaborations—think product-for-content, not pay-per-post. With over 10,000 vetted creators and micro-influencers across Europe, Barter makes launching campaigns and generating high-quality UGC effortless, scalable, and cost-effective—no agencies or long-term contracts required.

Today, Barter is the go-to marketplace for brands seeking fresh, real content and for creators eager for genuine partnerships. But we’re just getting started. Our next chapter is all about growth : expanding our creator community, rolling out smarter campaign tools, and launching new features like in-app performance tracking.

With current successes in the Netherlands, Belgium, Luxembourg, Germany, France, and the UK, our international expansion will bring our content revolution to new markets in Europe as well as North and South America.

If you want to help shape the future of influencer marketing and build a platform that puts creativity and authenticity first, Barter is where you belong.

Key Responsibilities :

Technical Leadership & Delivery

  • Lead design and implementation of complex features across Angular web and React Native mobile applications
  • Architect and maintain scalable design systems and component libraries with focus on consistency and accessibility
  • Drive frontend architecture decisions, tooling selection, and development workflow optimization
  • Partner with Product, Design, and Backend teams to define requirements and technical specifications

Code Quality & Mentorship

  • Conduct thorough code reviews that elevate team standards and knowledge sharing
  • Mentor developers through pair programming, technical guidance, and career development
  • Establish and document frontend best practices, coding standards, and architectural patterns
  • Champion performance optimization, accessibility compliance (WCAG), and cross-platform compatibility
  • Innovation & Continuous Improvement

  • Proactively identify and address technical debt to enhance maintainability
  • Research and implement cutting-edge tools and methodologies to improve developer experience
  • Strengthen CI / CD pipelines and expand automated testing coverage
  • Requirements : Essential Skills

  • React Native expertise : Building cross-platform mobile apps, deep understanding of React Native APIs, native module integration, debugging and optimizing for iOS and Android, experience with navigation libraries and app store deployment
  • Expert CSS proficiency : Modern CSS features, CSS-in-JS, Pre-Processors (Sass / Less), Responsive Design Patterns, Fluid Responsive, CSS Grid, Flexbox, Properties, etc.
  • Component system mastery : Building, documenting, and scaling design systems across platforms
  • Performance optimization : Bundle analysis, lazy loading strategies, memory management, profiling tools
  • Preferred Qualifications

  • Experience with Storybook or similar component documentation tools
  • Deep understanding of accessibility standards (WCAG) and testing methodologies
  • Background in UX / UI principles with design tool expertise (Figma, Sketch)
  • What You'll Achieve :

    First 3 Months

  • Audit and establish a scalable design system foundation that supports rapid product development
  • Identify and resolve critical frontend pain points affecting team velocity and user experience
  • Ship your first major feature while mastering our codebase and development processes
  • Build strong relationships with Product and Design stakeholders
  • Contribute meaningful improvements through code reviews and technical discussions
  • First Year

  • Become the architectural authority for frontend decisions and component system evolution
  • Successfully lead 2+ major product initiatives from conception to launch
  • Develop team members through structured mentorship and knowledge sharing
  • Drive measurable improvements in performance metrics, code quality, and developer productivity
  • Why This Role Stands Out :

    High-Growth Environment : Join Barter at the forefront of the creator economy as we scale across 6+ European countries.

    Technical Autonomy : Shape architectural decisions, choose modern technologies, and drive implementation strategies with minimal bureaucracy.

    Direct Impact : Your work influences the experience of thousands of businesses and creators daily.

    Career Acceleration : Clear path to Staff, Principal, or Leadership roles in a fast-scaling organization.

    Benefits & Perks :

    Compensation & Equity

  • Competitive experience-aligned salary with rapid growth potential
  • Meaningful early-stage equity with significant upside
  • Work Environment

  • Fully remote : Work from anywhere with flexible, async-friendly scheduling
  • Modern tech stack : Freedom to work with cutting-edge technologies
  • Zero bureaucracy : Direct collaboration with founders and leadership
  • Growth & Development

  • Generous learning budget for courses, tools, and conferences
  • High ownership over technical decisions and product direction
  • For any questions you can reach out to our partner in recruitment, Olivier Verwerda on olivier@crestrecruitment.nl or +31640605978.

  • acquisition is not appreciated
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    Frontend Developer • The Randstad, Netherlands, Netherlands