Senior Full-Stack Engineer — AI-Driven SaaS Platform

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

Benefits offered by this job

Buddy program

Training opportunities

Internal mobility program

Job summary

Regnology is seeking a Senior Software Engineer to help build a secure platform for AI agents within the Rfleet team. You will contribute across the stack with React, TypeScript, Java, and Quarkus, crafting APIs and real-time integrations in a cloud-native Google Cloud environment.

You should bring 5+ years in full-stack development, experience with modern web apps, a focus on clean code and testing, and a proactive, ownership-driven mindset.

Qualifications

• 5+ years of professional experience in full-stack software development.
• Experience building modern web applications and APIs; React/Quarkus preferred.
• Ability to evaluate AI-assisted development outputs for quality.
• Familiarity with cloud platforms (GCP) and related tooling helps.

Responsibilities

• As a Senior Software Engineer in the Rfleet team, you will help build Regnology’s secure platform for running and managing AI agents.
• You will work across the full stack, developing user-facing features with React and TypeScript and backend services with Java and Quarkus.
• You will design reliable APIs, real-time integrations and intuitive workflows for managing agent lifecycles, conversations, permissions and access.
• You will contribute to a secure, cloud-native architecture running on Google Cloud, where isolation, auditability and least-privilege access are fundamental.
• You will create and maintain automated tests and take responsibility for quality from design through production.
• You will collaborate in an international, agile team and help shape both the product and its technical direction.

Skills

Full-stack development

React

Quarkus

AI-assisted tools evaluation

GCP

Tools

Terraform

Shell scripting

Jenkins

Linux

Job description

Regnology is seeking a Senior Software Engineer to help build a secure platform for AI agents within the Rfleet team. You will contribute across the stack with React, TypeScript, Java, and Quarkus, crafting APIs and real-time integrations in a cloud-native Google Cloud environment.

You should bring 5+ years in full-stack development, experience with modern web apps, a focus on clean code and testing, and a proactive, ownership-driven mindset.