Principal Software Engineer

Who you are

• Extensive hands-on experience in software development with multiple general-purpose programming languages for a minimum of 5 years
• A proven track record of architecting scalable and secure systems, demonstrating a strong commitment to quality
• Extensive experience in designing and implementing APIs that enable seamless integration and system communication
• An agile and result-oriented mindset, with a strong emphasis on collaboration and teamwork
• Expertise in communicating with stakeholders in business terms and understanding the technical implications of their requirements
• Industry-leading experience driving cross-functional teams and enforcing engineering alignment in fast-paced environments, including making and following through on critical technical decisions
• Excellent verbal and written communication skills in English, with proficiency in German considered a plus
• Experience with IaC (ideally Terraform)
• Interest in climate tech industry

What the job involves

• In tech we have two main work streams:
• Heartbeat: Building a virtual power plant levering our energy manager “Heartbeat” and evolving the customer experience app around this
• Operating System for installation companies: Digitisation of operations and processes from ground operations to rooftop installations
• At 1KOMMA5°, we are looking for a top-tier Principal Software Engineer who leads with clarity, decisiveness, and deep technical insight. You will shape and own critical architectural decisions, drive alignment across teams, and ensure execution at the highest technical standard
• Shape the organisation's technical strategy and innovation efforts
• Accountable for consistent execution of technical decisions by setting clear direction and holding teams accountable for implementation
• Ensure continuously that our software architecture is shaped in close alignment with product management to support current and future product direction
• Lead architectural direction to enable the delivery of scalable, maintainable, and state-of-the-art solutions
• Translate business requirements into technical solutions
• Tackle and resolve deep technical challenges with urgency and precision
• Mentor and challenge engineers to accelerate their professional growth
• Build and scale a high-performance tech organisation and engineering culture
• Technologies you will work with include:
• Typescript/JavaScript/NodeJS (VueJS/NestJS)
• Ruby on Rails
• Flutter (Dart)
• Google Cloud Platform
• Terraform
• GitHub Actions
• IoT applications
• Reporting directly to the CTO

Benefits

• You have the opportunity to work in our brand new offices in downtown Hamburg and Berlin and/or remotely
• Use your technical equipment outside of work in your free time
• You are part of a fast-growing company with a lot of development potential , where you can build something independently and feel your impact
• Work in flat hierarchies , take on responsibility during your induction and work directly with parts of the management
• With your work, you support the megatrend “energy and mobility transition” and make a concrete contribution to the sustainable restructuring of our energy infrastructure
• Be active and use the offers of over 7,600 sports partners with the EGYM Wellpass