Senior Full Stack Engineer - AI Systems

QnR Group is a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions. Headquartered in Metamorfosis, Attica, the Group employs approximately 180 professionals and operates with a strong focus on quality, innovation, and reliability.

QUALITY & RELIABILITY, is an international technology innovator and a three-time Great Place to Work certified organization. The company offers a comprehensive portfolio of software products and services across the key industry sectors in which it operates.

Our Mission

We are building AI-native systems where autonomous agents reason, plan, and execute real business workflows. Our goal is to transform how organizations operate by combining modern cloud platforms with the latest advances in large language models and intelligent automation.

The Role

We are looking for a Senior Full Stack Engineer who wants to work at the frontier of LLMs, agent frameworks, and modern cloud architecture. You will help design and build production-grade AI platforms that integrate intelligent agents with real enterprise systems.

What You'll Do

• Build AI-powered applications and agent workflows
• Develop full stack platforms (modern frontend + scalable backend)
• Design microservices and API-driven architectures
• Integrate LLMs, vector search, and AI orchestration frameworks
• Help architect next-generation AI-native systems
• Typical Tech Stack
• Frontend: React, Angular, or modern JavaScript frameworks
• Backend: Python, Node.js, or Java
• AI & Data: LLMs, embeddings, vector databases
• Infrastructure: Docker, Kubernetes, AWS / Azure / GCP
• Architecture: Microservices, APIs, event-driven systems 

What Makes This Role Different

• Work on autonomous AI agents that can reason and take actions
• Build AI orchestration systems coordinating multiple intelligent services
• Create intelligent automation solutions for complex enterprise workflows
• Contribute to the design of AI-native software platforms

Ideal Candidate

• 5+ years of full stack engineering experience
• Strong backend development and system design skills
• Interest or experience with AI, LLMs, or intelligent systems
• Passion for building complex platforms and solving hard problems

Why Join Us

You will work on challenging engineering problems at the intersection of software architecture and artificial intelligence. Our environment encourages experimentation, learning, and building real systems that deliver impact. You will collaborate with experienced engineers and architects while exploring the future of AI-driven software platforms.

What is there for you

• We want our people to be well compensated, so we offer an attractive salary package
• Health is the most important asset, so we have you secured with a health insurance and compilation plan from day one
• We are excited for challenges, so you are invited to take part in exciting, innovative projects that make a difference
• We never stop learning and evolving! We encourage our people to follow the pace by providing them voucher for Training Courses, so that they adapt new tech skills and develop their soft skills
• Most important, we work as a team, so we gather on a smaller and bigger occasions to celebrate good times together! Happy Fridays, bowling sessions, running events and everything that help us have fun and enjoy working to our team



How to Apply

If you are excited about building the next generation of AI systems and intelligent software platforms, we would love to hear from you.