Happening

Senior Full-Stack Engineer

Happening Croatia 1 day ago
engineering

We’re looking for a Senior Full-Stack Engineer to join our Gaming team and help build seamless, high-performing gaming applications. If you're passionate about cutting-edge technologies and thrive in a dynamic, project-based environment, we want to hear from you!

What you’ll be doing:

  • Designing, developing, and optimizing scalable full-stack applications
  • Writing clean, reusable, and maintainable code following best practices
  • Ensuring applications are performant, responsive, and scalable
  • Reviewing code, sharing knowledge, and mentoring team members
  • Collaborating on new feature development and improving existing ones
  • Staying up to date with new technologies and driving continuous improvement

We’re looking for someone who has:

  • A minimum of 5+ years of experience
  • Strong expertise in HTML, CSS/SCSS, and modern JavaScript (ES6+)
  • Experience building and consuming APIs with Node.js or similar technologies
  • Proficiency in component-based design and modern frontend frameworks (React preferred, Angular or Vue.js also relevant)
  • Experience working with TypeScript or other typed languages
  • Solid understanding of Git and version control workflows
  • Ability to analyze, benchmark, and optimize application performance
  • Fluency in English and strong communication skills

Bonus points for:

  • Experience with state management libraries (e.g., Redux, Zustand, or Vuex)
  • Knowledge of performance optimization techniques
  • Familiarity with AWS and cloud-based architectures
  • Experience working with data-driven applications
  • Understanding of Content Management Systems (CMS)
  • Experience with OpenAPI and API documentation standards

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