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Senior Front-end Developer (Accessibility Product House)

Sigma Software

Office

Warsaw, Masovian Voivodeship, Poland

Full Time

Company Description

We’re looking for a Senior Front-end Developer to join our team and help build a more accessible web for everyone. The primary mission of our Front-end team is to develop, deliver, and maintain high-quality, accessible user interfaces for web applications, ensuring the best experience for our Customers. 

This position is ideal for a Front-end development expert who would like to build high-quality, scalable, and modular UI systems for web-based SaaS products. 

CUSTOMER

Our client is a rapidly growing technology leader in digital accessibility software that helps enterprises make their web and mobile offerings accessible to everyone. 

Job Description

  • Develop, test, and maintain Front-end components, focusing on accessibility 
  • Build high-quality, scalable, and modular UI systems for web-based SaaS products 
  • Contribute to the design and implementation of SPAs, browser extensions, design tool plugins, and internal UI component libraries 
  • Optimize Front-end performance and system efficiency 
  • Participate in design and code reviews to ensure adherence to best practices 
  • Collaborate with other engineering teams to integrate across the product stack 
  • Use modern automation frameworks to apply testing methodologies for Front-end quality assurance 

Qualifications

  • 8+ years of experience with JavaScript and/or TypeScript using React, Redux, or Next.js 
  • Experience with E2E Front-end development of complex, enterprise-grade, or SaaS applications  
  • Strong HTML and CSS capabilities  
  • Experience with styling and UI libraries such as Styled Components and StoryBook 
  • Experience with testing frameworks and methodologies (UT/E2E)  
  • Experience working with state or data management using React Query 
  • Practical experience using testing tools such as Playwright or Cypress 
  • Knowledge of working with API integration using Figma API and Chrome API 
  • Ability to write and reason about clean, modular code  
  • Values good UX and pixel-perfect design  
  • At least an Upper-Intermediate level of English (written and spoken) 

WOULD BE A PLUS

  • Experience with accessibility  
  • Experience building a component library and contributing to open-source projects  
  • Experience with Figma  
  • Excellent communication skills

Senior Front-end Developer (Accessibility Product House)

Office

Warsaw, Masovian Voivodeship, Poland

Full Time

August 15, 2025

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Sigma Software

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