Senior Software Engineer (TypeScript)

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 

• 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.