Senior Full Stack Engineer – C++/Python & Cloud HPC (m/f/x)

at  Quantagonia

JOIN OUR MISSION

We’re seeking an experienced Full Stack Developer to join our innovative team, working on cutting-edge projects involving cloud-based distributed computing, high-performance computing (HPC), and advanced software design. This is your opportunity to join our dynamic team and make a difference in a fast-paced startup focused on bringing advanced optimization and AI to the world. If you enjoy working on challenging problems and taking responsibility, you’re exactly who we’re looking for!
We have been featured in major publications such as Handelsblatt and the Frankfurter Allgemeine Zeitung (FAZ). If you want to learn more about Quantagonia, visit our website.

REQUIREMENTS

• 5+ years of professional experience in full stack development or equivalent roles (Senior level is preferred).
• Public GitHub projects or equivalent work samples demonstrating your coding skills and project contributions.
• Core Skills
• C++ (mandatory):
• Advanced knowledge of modern C++ (C++14, ideally C++17).
• Deep understanding of clean code principles, strong cmake expertise, and proficiency in software design.
• Python (mandatory):
• Strong experience setting up Python projects from scratch using modern tools and package builders.
• Knowledge of multiprocessing and asyncio.
• Familiarity with modern Python tools, such as hatch, uv, and ruff.
• Expertise in building and maintaining testing infrastructure.
• Additional Skills
• Cloud-Based Distributed Computing experience using Celery, RabbitMQ, or other message-broker architectures.
• High-Performance Computing (HPC), including experience with CUDA for GPU programming.
• Backend and Cloud experience, with Docker proficiency.
• Git and CI/CD experience.
• Nice-to-Have
• Familiarity with Rust or other programming languages.
• Domain knowledge in Operations Research, Machine Learning, or Large Language Models (LLMs).
• Strong communication skills, team-oriented with a sense of ownership, and a strong emphasis on code quality.

ABOUT US

Based in Germany, Quantagonia is making advanced decision intelligence accessible to companies across the spectrum and reducing barriers to entry. This initiative allows organizations to navigate complex challenges more effectively, fostering game-changing strategic advantages. The integration of cutting edge quantum computing technology, further fosters companies to create future-proof strategic advantages. This is your opportunity to have a significant positive impact on the growth of a company, build your own skillset, and experience the satisfaction of working at the forefront of a category that will shape the future of society.
We prefer an on-site working model (e.g. remote work of maximum 1-2 days per week) in our office in Frankfurt am Main or Munich, Germany. When working remotely, you need to be located in an EU country

• Lead the development of robust applications with a focus on performance, scalability, and maintainability.
• Work across the tech stack, implementing features in both frontend and backend, with a focus on C++ and Python.
• Architect, design, and maintain cloud-based distributed systems, using modern message-broker architectures like Celery and RabbitMQ.
• Engage in HPC, including GPU programming with CUDA, to deliver efficient, high-speed solutions.
• Collaborate closely with cross-functional teams and contribute to the product roadmap with a high degree of ownership.