Senior Software Engineer (all genders)

About The Role

As a Senior Software Engineer (f/m/d), you will be part of a high-impact team designing and enabling our GROPYUS Smart Living and Smart Building experience through scalable systems. You will help define and implement the architecture and operations of our Building Operating System, ensuring a robust, scalable digital infrastructure aligned with GROPYUS' mission of sustainable, affordable smart buildings. We build cross-collaborative and diverse teams that focus on products and are not tethered by ancient legacy systems or reporting structures.

What you will be doing

• Design and operate scalable IoT systems powering smart homes and buildings, integrating a range of proprietary smart devices.
• Build and maintain a Building Digital Twin, creating a unified source of truth for the building's operational state.
• Develop internal tools to support and streamline Building Operating System workflows and processes.
• Own and deliver complex technical tasks, working independently and adapting quickly to changing priorities and system-wide challenges.
• Apply technical expertise across domains, balancing business needs and technical risk while contributing to architectural decisions and roadmap planning.
• Champion agile, test-driven development and automation—within CI/CD pipelines and across the entire engineering lifecycle.
• Ensure quality, maintainability, and observability of systems by following scalable design principles and best practices.
• Collaborate cross-functionally, working closely with Product Managers, Designers, and Engineers to deliver impactful solutions and mentor junior team members.
• Execute full lifecycle development, including deployment, compliance, monitoring, and documentation using tools like ADRs, RFCs, and system specs.
• Contribute to a culture of ownership, sustainability, and innovation, where curiosity and purpose drive real-world impact.

About You

• You have experience designing and building as well as running and maintaining software, as a senior software developer
• You have professional experience in modern software design patterns
• You are experienced and/or desire to test pair and/or mob programming
• You have strong understanding of Linux based operating systems and distributed system architecture
• You have experience with Kotlin, Python, TypeScript, PostgreSQL, Redis, and Cloud Operations (Azure, GCP, AWS, or similar)
• You bring experience in designing and operating high available systems
• You participate in team strategy, roadmap definition, and sprint planning
• A plus if you are familiar with connectivity technologies (Wi-Fi, BLE, Zigbee, LoRaWAN, NB-IoT, 5G, etc.) as well as MQTT, CoAP, Zigbee, Z-Wave, Thread, KNX, BACnet, Matter
• A plus if you have experience with data ingestion, processing, and analytics pipelines for IoT data, including time-series databases and event-driven architectures
• A plus if you have hands-on experience integrating sensors, controllers, and automation frameworks in a building environment

What We Offer

• An unlimited contract with 30 vacation days.  

• Flexible, hybrid work: You can work from home or come into the office on the schedule that works best for you. Feel like traveling and working from another location? No problem. Tune into meetings and work from abroad for up to 40 days per year. In addition, flex hours allow you to prioritize important moments in your day.  

• Attractive perks and benefits: We offer a company pension scheme, language courses (English/German), and employee discounts with selected sustainable brands. Furthermore, our external partners in mental health support you in strengthening your mental health through anonymous private/group sessions.   

• Virtual Shares Program: Participate in the success of GROPYUS through our Virtual Share Program.  

• Ownership: You can truly make your mark with your work and contributions – on  all our organizational levels. Find your solutions, drive and test them.  

• The chance to be part of something big: Our mission is to rethink an entire industry. Join us in reinventing construction and fostering sustainable, affordable living.   
• A diverse and enriching work environment: Become a valued member of a wonderfully diverse team of individuals from over 50 countries. At GROPYUS we value inclusion above all, ensuring that everyone feels they belong – no matter their background. In this way, our differences become strengths that help us grow as a team.