Job
- Level
- Senior
- Job Field
- Embedded, Back End
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Pullach im Isartal
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will design the software architecture for over 2,000 SIXT branches globally, optimizing the software-to-hardware communication and working hands-on with device integrations.
Job Technologies
Your role in the team
- In this role you will shape the future of software that seamlessly connects physical branches worldwide with real-time technology.
- You will design and lead software architecture for over 2,000 branches in more than 110 countries.
- Your role combines deep technical insight with hands-on presence in the field, bridging software and hardware to enable the next generation of SIXT’s rental experience.
- You set the architectural direction for the software that runs every SIXT branch.
- Counter, checkout, key handover, vehicle exchange and return, plus the devices and IT services connecting them.
- End-to-end across the branch surface.
- You design at the software ↔ hardware intersection.
- Counter PCs, customer tablets, POS terminals, scanners, keyboxes — you model how our software speaks to physical devices in real time, and you shape the integration patterns the whole organisation will adopt.
- You drive system-design choices across the branch domain — event-driven flows, API contracts, state ownership, device-to-cloud protocols, the boundaries between modern services and legacy interfaces.
- This is hands-on architecture, not architecture-by-slide-deck.
- You grow the engineering practice around you — across the multiple teams that touch the branch (Checkout, Counter, Rental Platform, Turnaround, Keybox, Tablet/POS) through clean design docs, sharp technical reviews, and hands-on engagement when a problem is gnarly enough to warrant it.
- You spend real time at the branches.
- The strongest architecture is shaped where the system actually runs — with agents, with devices, and with customers.
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Our expectations of you
Qualifications
- You can sketch the architecture of a non-trivial system and defend every choice — from API design and data modeling, through event/stream patterns and state ownership, down to the trade-offs in how services talk to each other and to the outside world.
- You have shipped software that talks to physical devices — POS hardware, retail or restaurant systems, embedded clients, real-time stateful client-server protocols (MQTT, WebSockets, gRPC streaming).
- You know 'the device is misbehaving' is part of normal operation, and you design for it.
- You are comfortable with Backend in Go / Java / Python, event streams (Kafka), databases (Postgres / Redis), and cloud (AWS / Kubernetes).
- You have led architectural change across multiple teams through clarity, evidence, and follow-through.
- You write design docs people actually want to read.
Experience
- You have several years building production software systems at meaningful scale — customer-facing, multi-region — with a track record of taking systems from 'they work' to 'they are elegant and they scale'.
- Bonus for experience integrating with legacy systems you cannot rewrite — only design around.
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What we offer
- Enjoy discounts on SIXT rent, share, ride and SIXT+, attractive vehicle leasing offers, and exclusive deals with partners for travel, tech, fashion and more.
- We support you with a monthly mobility allowance of €20 per month for even more freedom.
- We contribute to your retirement plan and support you with capital-forming benefits to ensure you are well covered.
- Bleiben Sie aktiv mit unserem modernen SIXT-Fitnessstudio, verschiedenen Freizeitaktivitäten wie dem Gaming-Bereich oder dem SIXT-Chor, und genießen Sie unser hochwertiges Mitarbeitermenü.
- Enjoy 30 days of vacation and a hybrid working model with flexible hours.
- Take one day each year to volunteer at a charitable organization dedicated to supporting children.
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Benefits
Work-Life-Integration
Health, Fitness & Fun
Food & Drink
More net
Topics that you deal with on the job
Job Locations
This is your employer
SIXT SE
Pullach, Stuttgart
Mobility means freedom. The freedom to experience the world and share it with others. That's why we, the SIXT family with more than 6,000 employees worldwide, question the status quo every day and work tirelessly to create a future where people all over the world have access to safe, efficient, and comfortable mobility at the push of a button.
Description
- Language
- English
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication, Logistics, Transportation
Software Engineer – Rental Platform
- Location
- Pullach im Isartal
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
- English Only
- English only required