Fullstack Software Engineer - Quantum Platform

At planqc, we are building scalable quantum computers based on neutral atoms. Making this technology accessible to users requires a robust software platform that connects quantum hardware, simulators, and cloud-based applications.
As aFullstack Software Engineer - Quantum Platform, you will help develop the software that enables researchers and industry partners to interact with planqc’s quantum computing systems. Your mission is to build and maintain the platform components that connect our hardware and simulators with user-facing applications and services.
Working across the full software stack, you will contribute to developing backend services, APIs, and frontend interfaces that support reliable and scalable access to quantum computing resources. By collaborating closely with our hardware, algorithm, and software teams, you will help ensure that advanced quantum technology can be accessed through intuitive and robust software systems.
This role is ideal for engineers who enjoy working across backend services, web applications, and distributed software systems, and who are motivated by contributing to the infrastructure that enables real users to explore and apply quantum computing.
We actively invest in AI-assisted software development and encourage engineers to use and experiment with tools such as Claude Code, GitHub Copilot, and other coding agents. We want our engineers to learn how to use these tools effectively while maintaining strong engineering judgment, code quality, and ownership.

• Develop new features and tests forplatform software components.
• Design and evolveinterfaces and distributed services for submitting, scheduling, and managing quantum computing workloads.
• Contribute to thedesign, implementation, testing, and maintenance of software supporting planqc’s quantum computing systems.
• Implement and maintainbackend and frontend components to support scalable and user-friendly applications.
• Improvecode structure, readability, performance, and reliability to maintain production-quality software.
• Support the integration of platform services intoplanqc’s broader software stack, ensuring stable and efficient system operation.
• Follow modern software engineering practices includingversion control, code reviews, automated testing, and documentation.
• Document software components and features consistently during development.
• Collaborate closely with team members and share knowledge across the engineering organization.
• Continuously expand your understanding ofnew technologies and the fundamentals of quantum computing systems.

• 3+ years of experience in professional software development.
• Degree inComputer Science, Engineering, Physics, or a related technical field.
• Proficiency intwo or more programming languages, such as Python, TypeScript, Rust, C++, C, or Java.
• Experience building backend services inPython using frameworks such asFastAPI, Flask, or Django, and web applications inTypeScript using frameworks such asReact or Vue.
• Experience working withORMs and relational databases, combined with a good understanding ofSQL. 
• Familiarity withCI/CD workflows, unit testing, and version control (Git).
• Hands-on experience withcontainerization technologies such as Docker.
• Strong motivation tolearn new technologies and continuously improve your engineering skills.
• Ability to work effectively in acollaborative, team-oriented environment.
• Fluent inEnglish (C1 level).
• Validwork authorization for Germany or the EU, and willingness to work on-site in the Munich area.

• Experience with AI-assisted software development tools such as Claude Code or other agentic coding tools.
  
• Experience withDomain-Driven Design or other approaches tostructuring complex software domains.
• Contributions toopen-source projects or personal technical software projects.
• Experience with container orchestration platforms such asKubernetes.
• Familiarity withquantum software frameworks such as Qiskit, Cirq, or PennyLane.

• You are acollaborative team player who enjoys working across disciplines and organizations.
• You takeownership of your work and are motivated to contribute to impactful engineering projects.
• You are curious aboutquantum technologies and emerging computing paradigms.
• You approach technical challenges withpragmatism and a strong focus on quality.
• You valueclear communication, knowledge sharing, and constructive feedback within a team.

At planqc, we are building scalable quantum computers based on neutral atoms, one of the most promising approaches to realizing practical quantum advantage. Achieving this requires a team that combines deep expertise inquantum physics, engineering, software development, and business operations, working closely together to solve some of the most challenging problems in modern computing.

Joining planqc means becoming part of ahighly collaborative and interdisciplinary team where researchers and engineers work side by side to turn cutting-edge ideas into real technology. You will have the opportunity to takereal ownership of your work, contribute to critical systems, and see your solutions directly impact the development of next-generation quantum computers.

We aim to create an environment where people cangrow, stay curious, and do their best work. This includes supporting professional development throughtrainings, conferences, and learning opportunities, offeringhealth and wellbeing benefits, and providing the flexibility needed to balance focused work with personal life. As a growing deep-tech company, we also offer the chance totake on responsibility early and help shape both our technology and our culture.

We believe that building breakthrough technology requirescuriosity, openness, and strong collaboration and we are looking for people who are excited to grow with us while shaping the future of computing.