freehire launches on Product Hunt on 26 August.

Follow →

Frontend Engineer (Design core team)

Open 28d
Coinspaid Dev is the engineering brand behind the technology, infrastructure, and R&D expertise built within Coinspaid. With more than 120 engineers and over 11 years of industry experience, Coinspaid Dev brings together software engineering, infrastructure, security and R&D teams with experience building distributed systems and blockchain infrastructure operating across more than 20 blockchain networks.

Coinspaid Dev emerges as an independent engineering brand with a straightforward mission: to advance blockchain infrastructure engineering and contribute practical expertise back to the industry. The structure is new. The experience behind it is not.

This is not a feature-team role focused on shipping isolated product functionality. You will work on a shared UI platform that defines how all company products look, feel, and scale. Your success will be measured by the quality, consistency, and adoption of the UI Kit and design system across teams, with a strong focus on long-term architecture, developer experience, and close collaboration with product design. If you’re looking for deep ownership and company-wide impact, this role is a great fit, however, if you prefer working within a single product team delivering features, it likely isn’t.

What You’ll Be Working On

  • Building and maintaining reusable UI components for all company products
  • Owning and evolving the company-wide UI design system and core UI Kit
  • Shaping and enforcing UI engineering best practices and coding standards
  • Acting as a technical reference point for UI-related topics across teams
  • Influencing how UX and UI work and look across all applications
  • Supporting and leading the integration of the UI Kit into multiple products
  • Collaborating closely with designers on the evolution of the design system
  • Contributing to technical processes around UI development
  • Participating in code reviews for the shared UI codebase and consuming applications

Required Skills & Background: General expertise

  • 5+ years of experience as a Frontend Engineer (JavaScript, React)
  • Strong hands-on experience with the React 18+ ecosystem
  • Excellent JavaScript knowledge (ES6/ES7)
  • Solid experience building responsive web applications for desktop and mobile browsers (HTML, CSS, React, Material UI)
  • Awareness of cross-browser compatibility issues and client-side performance considerations
  • Experience working in an Agile environment
  • Good level of spoken and written English and Russian

Required Skills & Background: Design systems, UI architecture & component-driven development

  • Proven experience building and maintaining design systems at scale
  • Deep understanding of component-driven development (Storybook, MDX, visual testing)
  • Strong knowledge of design tokens, theming, and scalable UI architecture
  • Experience working closely with designers (Figma, design handoff, design tokens synchronization)
  • Passion for UI quality, consistency, and reusable component development
  • Experience integrating a shared UI Kit into multiple applications and teams

Quality, ownership & engineering mindset

  • Deep understanding and practical experience in software testing (unit, UI, integration, component tests)
  • Proactive mindset and willingness to take ownership of the UI design system
  • Ability to work independently and solve complex problems
  • Experience participating in and driving code review processes and coding standards

Nice-to-have

  • Understanding of accessibility standards (WCAG, ARIA)
  • Experience contributing to internal or open-source UI libraries
  • Familiarity with Figma API or automated design-to-code workflows
  • Knowledge of CI/CD pipelines for frontend modules

Why join CryptoProcessing by Coinspaid

You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact.

At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so.

We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.

Flexible Benefits

Benefit Bar – up to €230/month
A flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.

Work & Flexibility

  • Fully remote work from almost anywhere

  • Optional offices and relocation support

  • Flexible, async-friendly environment

Growth & Learning

  • Budget for courses, certifications, and professional development

  • Language learning support

  • Cross-team learning and knowledge sharing

Wellbeing & Support

  • Medical insurance or reimbursement depending on location

  • Access to mental health support

  • Financial support for important life events

Extras

  • Merch shop with rewards system

  • Team offsites and company events

Sounds good? Well then, we can’t wait to see your resume!
To learn more please visit: &

What this application asks

lever

Resume/CV, Full name, Email, Phone, Current location, Current company, LinkedIn URL, GitHub URL, Portfolio URL, Other website

  • Current Location: Where are you currently based?
  • Work Location: From which country do you plan to work?
  • Time Zone: We operate in the CET time zone. While we offer a flexible schedule, our core working hours are aligned with CET. Would this work for you? choose one
  • Availability: If you receive an offer from us, when would you be ready to start?
  • What is your level of English? choose one · optional
  • What is your level of Russian? choose one · optional
  • What are your salary expectations? (Please provide a range in gross EUR)
  • How many years of experience do you have with React development? choose one
  • Which versions of React have you worked with? yes / no · optional
  • Have you worked on solving security and performance issues in web applications? If so, which areas have you had hands-on experience with? (You can select multiple options.) yes / no · optional
  • Which Agile practices have you worked with? yes / no · optional
  • Open-ended question: Describe the most challenging technical problem you have faced in frontend development during last 1-2 years. How did you solve it? written answer · optional
  • What is your English proficiency level? choose one
  • What is your Russian proficiency level? choose one

See also

Tailor your CV for this role?

We couldn't check your fit for this role — add a CV to your profile to see it next time.

A new version of freehire is available