Senior Software Development Engineer (m/f/x)

Berlin, Germany Full-time

Are you passionate about data science? Are you open-minded about approaches and techniques, willing to pick the best tool for the job? Would you like your skills to have a real impact on the market? Are you keen on working with world-class teammates in a successful startup to bring a product to the market that will change a billion dollar industry? Well, this position might be just for you! 



SO1 is the leading artificial intelligence for retail.

We are building a revolutionary AI promotion platform based on machine learning and seamless retail integration. The SO1 Engine learns autonomously about individual consumer's preferences and their willingness-to-pay, providing real-time targeting across various media channels in the form of individual promotion feeds. Working with leading retailers in Europe and North America, SO1 has proven its superior ability to serve up the right offers to consumers while at the same time maximizing financial impact for retailers and globally recognized brands.

SO1 has been backed by high-profile investors with 8-figure investments and continues to focus on building the best AI for retail.


Your role

As a backend developer at SO1, you will be at the heart of our high performance Machine Learning microservices architecture. You would create microservices written in Go/Python deployed in Docker containers that communicate via gRPC while being orchestrated by Kubernetes. You will collaborate with our machine learning and data science teams and will have the opportunity to learn and apply machine learning and data science concepts.


Your profile

Must haves:

  • Strong core computer science and algorithms knowledge
  • Familiarity with Docker and Kubernetes
  • Experience in Go and Python
  • Getting things done attitude, goal orientation

Highly desirable: 

  • Experience with high throughput, 24/7 availability systems
  • Understanding of distributed systems, microservice architecture, concurrent programming
  • Recent production experience in Kubernetes
  • Know-how with Git, CI and TDD
  • Experience with Azure
  • NoSQL and columnar data stores knowledge (preferably Cassandra or Redis)



We offer our employees unique learning opportunities and the chance to take on important projects from day one together with:

  • A revolutionary platform that meets a strong customer need,
  • A highly energetic environment and smart colleagues who will help you accelerate your professional growth,
  • Freedom to shape your role and significantly impact the company’s direction and future,
  • Performance-based compensation,
  • Above market salary and vacation days,
  • Flexible working hours and vacation policy,
  • Possible stock options after you have proven your impact,
  • Lunch allowance through LunchIt app,
  • A job in one of the hottest cities in the world and amenities like free drinks & snacks, team events, and an office with a huge rooftop terrace in the middle of Prenzlauer Berg.



We are a diverse team of about 30 software engineers, DevOps, machine learners, data scientists, and business people. All united in their hunger to achieve something great and change the promotion game for good. We operate in small teams, with flat hierarchies. We love cooking together in the kitchen and having fun with barbeques on our rooftop terrace. At SO1, we pride ourselves on our diverse workforce and inclusive community feel. As an equal-opportunity employer, we welcome applications from candidates regardless of race, religion, gender identity, sexual orientation, age, disability or background.


We are very much looking forward to your application. Please send your CV in pdf including the earliest possible entry to the SO1 recruitment team.


By submitting your resumé and application information, you authorize SO1 to transmit and store your information in the SO1 recruitment database, and to circulate that information as necessary for the purpose of evaluating your qualifications for this or other job vacancies within SO1.