Full Stack Engineer with focus on Frontend (Accessibility Product House) at Sigma Software


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Sigma Software is Hiring

Job Info:
  • Company Sigma Software
  • Position Full Stack Engineer with focus on Frontend (Accessibility Product House)
  • Location Warsaw, Poland
  • Source SmartRecruiters
  • Published June 24, 2025
  • Category Development
  • Type Full-Time


Job Description

  • Lead the end-to-end development of features with a focus on frontend using React and TypeScript (design, development, testing, maintenance)
  • Collaborate closely with backend engineers to design and implement scalable API services and data handling solutions
  • Contribute to the improvement of backend services that power the product you’re building 
  • Enhance backend services to facilitate product development 
  • Help drive the evolution of the team’s technology stack, balancing frontend innovation with backend robustness

Frontend (80% focus): 

  • 4+ years of experience in Frontend Engineering using React over TypeScript
  • Strong HTML/CSS capabilities
  • Experience with testing frameworks and methodologies (UT/E2E)
  • Strong understanding of FE architecture, state management, and performance optimization
  • Profound expertise in Vanilla JavaScript, DOM APIs, and the JS ecosystem

Backend (20% focus): 

  • Experience with at least one language - Node JS, Python, JVM-based (e.g., Java, Kotlin), or similar 
  • Strong understanding of RESTful APIs
  • Hands-on experience with one of data stores and services like SQL (MySQL, Postgres), NoSQL (MongoDB)

PERSONAL PROFILE

  • Proactive attitude 
  • Strong team player with a collaborative mindset 
  • Independent and self-motivated learner 
  • Strong problem-solving skills and attention to detail 
  • At least Upper-Intermediate level of English - written and spoken