As Hungary’s most attractive employer in 2025 (according to Randstad’s representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries. DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.

Job Description

Are you passionate about low-level performance, hardware interaction, and building unbreakable software? Do you excel at writing code that survives power cycles and network drops without a glitch? Join our team to engineer the mission-critical foundation of our new platform. If you are a Rust expert who views extreme hardware constraints as an exciting architectural challenge, we want you on board!

Project Description

Our project, GroundOS, is not just another screen manager. It is a next-generation Universal Display System (UDS) built to power the future of global mobility. We are building an "Operating System for Reality" that orchestrates massive, data-driven signage networks across critical infrastructure, from major international airports to sprawling public transport systems. GroundOS moves beyond static displays; it uses a state-of-the-art digital twin to process and react to real-time operational data. To guarantee continuous operation, the platform features a resilient, offline-first edge architecture that ensures screens keep running smoothly even if the network fails. Join us to blend high-performance Rust edge computing with modern TypeScript cloud services and help us set a new global standard for how hundreds of millions of passengers experience their journey.

 Tasks

• Develop ultra-reliable, high-performance edge computing agents using Rust.
• Write low-level drivers and interface with hardware peripherals on Linux-based mini-PCs.
• Optimize binaries to ensure a minimal footprint and maximum execution speed.
• Implement efficient Foreign Function Interfaces (FFI) to bridge Node.js and Rust environments.
• Integrate directly with NATS at a low level for high-throughput local messaging.
• Design resilient daemons that survive power cycles, network outages, and hardware jitters without data corruption.
• Act as the technical authority and go-to expert for complex memory or concurrency bugs.
• Explain low-level hardware constraints clearly to high-level web developers.

Qualifications

• Deep, expert-level proficiency in Rust, including ownership, borrowing, lifetimes, and unsafe code guidelines.
• Proven track record of ensuring zero memory leaks and strictly managing CPU cycles.
• Strong understanding of embedded hardware constraints, including filesystem write limits (SSD/SD wear) and thermal constraints.
• Excellent analytical and problem-solving skills for constrained environments.
• Strong communication skills to bridge the gap between hardware and software teams.
• Expert knowledge of agile development
• Solid knowledge of Scrum
• Experience working in agile projects and teams
• Excellent English skills, both written and spoken (B2–C1)
• Excellent technical and analytical skills, as well as problem-solving abilities
• Ability to handle stressful situations and work independently

Advantages

• Experience with Yocto or building custom embedded Linux distributions.
• Prior experience in IoT or edge computing

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.