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Urgent! Senior Full Stack Engineer with focus on Front-end (Accessibility Product House) Job Opening In Warsaw – Now Hiring Sigma Software

Senior Full Stack Engineer with focus on Front end (Accessibility Product House)



Job description

Job Description

  • Develop, test, and maintain frontend components with a focus on accessibility.
  • Contribute to the improvement of backend services that power the product you’re building.
  • Enhance backend services to better facilitate product development.
  • Build high-quality, scalable, and modular UI systems for web-based SaaS products.
  • Optimize frontend performance and system efficiency.
  • Participate in design and code reviews to ensure best practices.
  • Collaborate with other engineering teams to integrate across the product stack.
  • Apply testing methodologies using modern automation frameworks for frontend quality assurance.

Qualifications

Frontend (80% focus): 

  • 5+ years of experience with JS/TS using React
  • Experience with Redux 
  • Experience with E2E Frontend development of complex enterprise-grade / SaaS applications 
  • Strong HTML/CSS capabilities 
  • Experience with Styling & UI Libraries: Styled Components, StoryBook
  • Experience with testing frameworks and methodologies (UT/E2E) 
  • Practical experience using Testing Tools - Playwright or Cypress
  • Experience working with State/Data Management - React Query
  • Ability to write and reason about clean and modular code 
  • Values good UX and pixel-perfect 
  • Strong communication skills
  • At least Upper-Intermediate level of English 

Backend (20% focus):

  • Proven commercial experience in back-end development (any programming language is acceptable).
  • Familiarity with back-end system-design principles, including API definition and integration.
  • Ability to design and implement relational database structures.

WOULD BE A PLUS

  • Experience with accessibility  
  • Experience building a component library and contributing to open source  
  • Experience with Figma



Required Skill Profession

Computer Occupations



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