• Design, craft and maintain our optimization platform end-to-end, across dimensions such as data ingestion and processing, optimization logic implementation, battery control, automated power trading, accounting and settlement
• Work cross-functionally, especially with data scientists to support them in the implementation of our optimization logic, automated trading execution, and battery control
• You will mentor and guide team members and improve their workflows by bringing your best knowledge to the team
• Define and foster engineering best practices and spend time teaching engineers and data scientists on how to design and deliver a well built, maintainable, iterable solution
• You will support your colleagues during their onboarding, daily operations and strategic tasks
• Implementation of our optimization and trading algorithms with focus on immediate go-lives as well as strategic, long-term focussed advancement of our platform
• Maintain and improve our tech stack and development environments and build infrastructure, from how services are developed and tested, to how they are built and integrated, to how they are monitored

Mandatory requirements

• 5+ years experience in Software Engineering (Backend and algorithmic) in the cloud
• 2-3 years experience with Python including object-oriented design
• 2+ years experience in onboarding, mentoring and coaching colleagues in junior positions
• Evidence of pragmatic delivery
• Experience working cross-functionally, especially with Product and Data Science teams
• Team player to effectively bring across complex ideas and concepts with an ability to work on solutions individually
• Experience and desire to work in a dynamic, fast-paced environment
• Strategic and analytical thinking
• Full business proficiency in English

Skills to Set You Apart

• Familiarity with AWS cloud platform, and services like Lambda, ECS, and other core AWS services used to build scalable, reliable backend systems.
• Energy industry experience
• Design thinking/sprint  experience

This role may not be a fit for you if…

• You don’t have the habit of defining your own tasks and expect other functions to do them
• You are used to working in clear separate functions (software engineering, data science, product, ...)

At Entrix, we are committed to diversity - of backgrounds and experiences. You don’t need 100% of the preferred qualifications to add incredible value to our team. If you’re passionate about what you could accomplish here, we’d love to hear from you.

• Competitive Compensation Package: Including salary, benefits and options
• Professional Development: Annual development budget of 3,000 € for coachings, trainings, books, etc.
• Health & Sport Subsidy: Company subsidised sports facilities membership
• Public Transportation Subsidy: Monthly subsidy to your public transport ticket
• Lunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers
• Work Equipment: Mac Book or Windows Laptop and ergonomic workplace
• Regular Team Events: Knowledge Sessions, Afterwork, Sports, Offsites, Halloween, Pride Month, etc.

Dr. Christian Buckl
Head of Software - Entrix & Flexa


Hi there!

I'm Christian Buckl, Head of Software at Entrix & Flexa. My professional journey has been deeply rooted in the intersection of technology and industry spanning areas such as autonomous driving and cloud-based systems that serve millions of users. Over the years, I've had the privilege of contributing to various innovative projects and leading teams dedicated to pushing the boundaries of what's possible in our field.

• At Lyft (2018–2024), I initially built the in-car middleware system for autonomous driving. Later, my team and I developed the in-house mapping stack—including the routing engine and estimated-time-of-arrival (ETA) system—powering millions of rides.
• At Apple (2016–2018), I led a team in the Special Projects Group focused on autonomous systems.
• At Siemens (2015–2016), I spearheaded software development for a startup within Siemens, creating a hardware/software platform for autonomous electric vehicles.
• Before that, I was a founding member of fortiss, a non-profit research organization in Munich.

At Entrix & Flexa, we believe that our success is built on the strength of our team. We foster a collaborative, forward-thinking environment where everyone can thrive and make a meaningful impact. Having spent over eight years working for Silicon Valley companies, I bring that experience to help shape our innovative culture.

If you're passionate about pioneering technological solutions and eager to be part of a dynamic and international team, I encourage you to explore the opportunities we offer. Together, we can drive innovation and achieve remarkable milestones.

Thank you for considering a future with us. I look forward to the possibility of working together to shape the future of technology,

Christian

Your contact person is Ekaterina Davydova (ekaterina.davydova@entrixenergy.com)

We are looking forward to receiving your application!