Senior Full-stack Software Engineer

5 days ago

Thessaloniki, Central Macedonia, Greece Onelity Full time €60,000 - €80,000 per year

We are seeking a highly skilled and versatile Senior Full-Stack Software Engineer to join our team and contribute to the development of our innovative retail product. In this role, you will work across the entire technology stack – from backend services to frontend interfaces and mobile applications, ensuring the product is robust, scalable, and user-friendly.

In this role, you will:

  • Design, develop, and maintain backend services using C++ and C#
  • Manage and optimize databases (SQL and NoSQL) for performance and scalability
  • Build intuitive and performant frontend interfaces
  • Develop and maintain mobile applications with Android Studio
  • Deploy, manage, and monitor applications on AWS cloud infrastructure
  • Ensure best practices in coding standards, testing, security, and performance
  • Collaborate with cross-functional teams to align technical solutions with business goals

What we are looking for:

✓
Professional Experience

5+ years in full-stack software development

✓
Education

Bachelor's or Master's Degree in Computer Science, Software Engineering, or related field

✓
Qualifications

  • Strong expertise in C++ and C#, with proven backend development experience
  • Hands-on experience with SQL and NoSQL databases
  • Proficiency in frontend development with modern frameworks
  • Experience in mobile development with Android Studio
  • Solid understanding of AWS cloud infrastructure and deployment practices
  • Familiarity with CI/CD pipelines, DevOps practices, Docker/ Kubernetes (a plus)
  • Excellent communication in English

Why join us?

  • Play a key role in shaping a cutting-edge retail product with global reach
  • Opportunity to work across the full technology stack (backend, frontend, mobile)
  • Agile working culture with flat hierarchies and strong cross-functional collaboration
  • Flexible working model: hybrid or remote

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