Senior Software Engineer (TypeScript)

HAYS POLAND Sp. z o.o.

Data publikacji: 13.01.2026 Oferta wygasa: 18.03.2026

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Senior Software Engineer (TypeScript)

lokalizacja: Polska

numer referencyjny: 1197353/praktykipl

forma zatrudnienia: Pełny etat

Your new company 

You will join an international tech organization focused on building modern, commercial‑grade web applications. The company values high engineering standards, innovation, and a collaborative culture. Working within a fast‑moving R&D environment, you will contribute directly to the development of products used by customers worldwide. 

Your new role 

As a Senior Software Engineer (TypeScript), you will be a key member of the Engineering team, reporting to the VP of R&D and working closely with Product Managers, Product Designers, UI/UX specialists, and fellow engineers. Your responsibilities will include:
  • Designing, developing, implementing, testing, and maintaining web‑based applications
  • Building new features and maintaining the existing codebase
  • Ensuring high‑quality, clean, well‑tested code (unit, integration, and other QA tests)
  • Following coding standards and best practices
  • Creating and maintaining technical documentation
  • Supporting engineering and support teams in debugging and troubleshooting
  • Coaching and mentoring junior engineers
  • Contributing to team processes, tooling decisions, and development workflows
  • Participating proactively in research and specification phases for new product opportunities
  • Conducting code reviews and supporting other engineers
  • Developing a strong understanding of the company’s technical architecture

What you'll need to succeed 

  • 7+ years of hands‑on experience developing commercial web applications
  • Strong proficiency in TypeScript, JavaScript, HTML5, and CSS
  • Solid understanding of modern front‑end frameworks and libraries (preferably React)
  • Experience with REST and GraphQL
  • Familiarity with modern front‑end tooling (e.g., NPM, Node.js, Vite)
  • Practical experience applying SOLID principles
  • Background working in Agile/Scrum/Kanban environments
  • Proven ability to collaborate with cross‑functional teams (PM, UI/UX, Support)
  • Strong communication skills and excellent written English
  • Proactive, self‑disciplined, well‑organized, and highly motivated work style
  • Ability to uphold high ethical standards and adapt to a fast‑paced, innovative environment

What you'll get in return 

  • The opportunity to work in a modern, innovative R&D environment
  • A role with real impact on product direction and technical decisions
  • A collaborative culture that values knowledge‑sharing and continuous improvement
  • The chance to mentor others and shape engineering practices
  • Exposure to cutting‑edge technologies and complex architectural challenges

What you need to do now 


If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.



Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

hays.pl

Hays Poland sp. z o.o. jest agencją zatrudnienia nr 361