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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 replace slow, manual processes with a continuously up-to-date, audit-ready experience. It serves startups, scale-ups, and enterprises, and is recognized by its customers and partners for both technology and a partnership-driven approach.

Requirements:

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

  • Proven production experience with microservices architecture .

  • Strong skills with both relational and non-relational databases , including data modeling and query optimization.

  • Solid experience designing, building, and integrating REST APIs .

  • Familiarity with AWS or a similar cloud provider.

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

  • Strong software design fundamentals (principles, patterns) 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 a strong advantage.

Nice to have:

  • Experience developing high-scale SaaS solutions .

  • Deep 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:

  • Design and build scalable backend services using microservices and containerized solutions on AWS .

  • Participate in architectural decisions, research, and design to deliver robust, maintainable software.

  • Model data and build/integrate REST APIs with third-party systems; contribute to frontend where needed.

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

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

  • Continuously improve platform 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 21 days ago
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