Senior Full-Stack Engineer — AI-Driven Platform, Global Team

Regnology; Poland; On-site; PLN 180,000 - 260,000; Full time

Job summary

Regnology is seeking a Senior Software Engineer to join the Rfleet team. You’ll build the secure platform for AI agents, working across the full stack with React/TypeScript on the frontend and Java/Quarkus on the backend.

You’ll design reliable APIs, enable real-time integrations, and maintain a cloud-native architecture on Google Cloud with strong emphasis on security and access control.

Qualifications

• At least 5 years of professional full-stack development experience.
• Experience building modern web apps and APIs with React and TypeScript.
• Backend with Java and Quarkus; cloud-friendly engineering mindset.
• Familiarity with GCP, Terraform, shell scripting, Jenkins or Linux is a plus.
• Hands-on, proactive, and comfortable in an international team.

Responsibilities

• Build Regnology’s secure platform for running and managing AI agents.
• Develop user-facing features with React/TypeScript and backend services with Java/Quarkus.
• Design reliable APIs, real-time integrations, and intuitive workflows for agent lifecycles.
• Contribute to a cloud-native architecture on Google Cloud with least-privilege access.
• Create and maintain automated tests; ensure quality from design to production.
• Collaborate across an international agile team and influence product direction.

Skills

Full-stack development

React

TypeScript

Java

Quarkus

Cloud experience

Tools

React

Quarkus

Job description

Regnology is seeking a Senior Software Engineer to join the Rfleet team. You’ll build the secure platform for AI agents, working across the full stack with React/TypeScript on the frontend and Java/Quarkus on the backend.

You’ll design reliable APIs, enable real-time integrations, and maintain a cloud-native architecture on Google Cloud with strong emphasis on security and access control.