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Full-Stack Developer

Full-time

5Blue Software

Join a fast-growing product company building an AI-powered B2B SaaS platform that helps organizations worldwide automate security, risk, and compliance workflows. The platform combines intelligent automation, real-time monitoring, and AI-driven insights to turn slow, manual processes into a smooth, continuously audit-ready experience. It serves startups, scale-ups, and enterprises, and is known for both its technology and a strong partnership-driven approach.

Requirements:

  • 5+ years of frontend development with React , plus solid backend experience in Node.js ( C# , Java , or C++ also relevant).

  • Strong command of modern frontend fundamentals — component architecture, state management, performance, and responsive UI.

  • Experience building and integrating REST APIs .

  • Working knowledge of relational and non-relational databases.

  • Familiarity with AWS or a similar cloud provider; understanding of microservices architecture.

  • Ability to own a feature or technical project end to end and drive it independently.

  • Strong software design fundamentals and a self-driven approach to problem-solving.

  • English — Upper-Intermediate level and above, with strong verbal and written communication.

  • Knowledge of containerization tools ( Docker , Kubernetes ) is an advantage.

Nice to have:

  • Experience developing high-scale SaaS products with polished, complex UIs.

  • Eye for UX and close collaboration with Product and design.

  • Understanding of CI/CD and QA automation processes.

  • Maturity with AI-assisted development — able to review and understand generated code rather than relying on it blindly.

  • Academic background in Computer Science , Software Engineering , or a related field.

Responsibilities:

  • Build intuitive, performant frontends in React and shape the platform's UI/UX architecture.

  • Implement backend logic and integrate with third-party APIs as part of full-stack feature delivery.

  • Participate in architectural decisions, research, and design for scalable, maintainable software.

  • Work directly with Product and stakeholders to shape requirements and break them into well-scoped tasks.

  • Mentor teammates, promote knowledge sharing, and uphold coding standards.

  • Continuously improve UI performance, scalability, and maintainability while keeping up with industry trends.

What we offer:

  • Flexible Work Environment: Opportunity to work remotely.

  • 1:1 English Classes: Individual English language training to enhance your communication skills.

  • Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.

  • Great Team: Work with a supportive, collaborative, and dynamic international team.

  • Equipment Provided: All necessary equipment supplied for efficient job performance.

  • Accounting Support: Full accounting assistance in Ukraine and Poland.

  • Paid Time Off: 18 days of Annual Vacation and 7 days of Sick Leave without a doctor's note.

  • Flexible payment system , which allows you to withdraw funds in one click and has about twenty withdrawal options.

Vacancy posted 6 hours ago
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