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Cleeng

Front-end Engineer

Cleeng
Poland · Full-time · Associate

Founded in 2011, Cleeng is the Subscriber Retention Management® Company. Cleeng unifies the entire subscriber experience across web and mobile apps from a single platform, empowering D2C companies to simplify subscription management and maximize customer lifetime value.

Our award-winning Subscriber Retention Management (SRM®) suite delivers comprehensive solutions through an integrated approach - from flexible web payments and in-app subscriptions to sophisticated recurring billing and AI-powered customer support.

Trusted by industry leaders, including the NHL, Big Ten Network, The Weather Channel, TOD/BeIN, and NHK, Cleeng's complete suite helps businesses reduce churn and drive sustainable revenue growth across every channel.

About The Role

We are looking for a Front-end Engineer to join our Subscriber Experience Squad (SXP) - a high-impact, cross-functional team responsible for the full subscriber lifecycle, from checkout to account management.

In this role, you will focus on building high-quality user interfaces that directly impact conversion, retention, and overall user experience. You will work closely with product leaders and engineering teams to deliver reliable and scalable front-end solutions.

AI is our foundation.

We are an AI-first company. You'll go beyond traditional coding by weaving AI into your daily workflow to handle repetitive tasks and speed up development. This role is for someone who uses AI tools to boost shipping velocity while maintaining high standards for code quality and system reliability.

Your mission

Build intuitive, responsive, high-performing user interfaces in an AI-first development culture that enhance subscriber experiences across key journeys.

Requirements

  • Practical use of AI tools in day-to-day development
  • 2-4 years of experience building front-end applications with React
  • Solid knowledge of TypeScript and JavaScript fundamentals
  • Good understanding of HTML, CSS, and browser behavior
  • Experience writing automated tests (unit, integration) and testing frameworks (e.g. Playwright)
  • Experience building responsive, user-friendly interfaces
  • Understanding of backend concepts (APIs, server-side logic)
  • Practical experience using AI tools in day-to-day development
  • Strong attention to detail and code quality
  • Good communication skills in English (B2+ minimum)
  • Proactive attitude and willingness to learn

Nice to have

  • Experience with Next.js and server-side development
  • Familiarity with AWS or other cloud environments

Your responsibilities:

  • Master and evolve our AI-first development workflows
  • Build and maintain front-end applications using React and TypeScript
  • Implement user-facing features based on product and design requirements
  • Write clean, maintainable, and well-tested code
  • Contribute to component libraries and reusable UI patterns
  • Collaborate closely with designers, product managers, and engineers
  • Ensure high quality through automated testing (unit and integration)
  • Debug and fix issues across different browsers and devices
  • Continuously look for ways to improve user experience and development practices

Benefits

  • Flexible working hours and form of employment;
  • Possibility to work 100% remotely;
  • 100 % paid sick leave within the agreed limits;
  • Events, celebrations
  • Work with an international team of well - rounded experts in Amsterdam (HQ), Poznan, Manila, NYC. 16 nationalities and counting!
  • Work on unique, market-leading, SaaS products, with clients all over the world, from New Zealand, Japan, Europe, US, and Latam;
  • Work closely with people who value diversity, hard work, friendly relationships and love their jobs, and get all together to the next level!

Key Skills

Ranked by relevance

ai ai tools responsive server javascript typescript react cloud saas css aws ui
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Posted
Jun 18, 2026
Type
Full-time
Level
Associate
Location
Poznań
Company
Cleeng

Industries

IT Services IT Consulting

Categories

Engineering

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