Senior Backend Engineer - Go(lang) / Platform

The Platform tribe’s mission is to enable the delivery of valuable experiences to our merchants. We do this by providing tools, systems and APIs that allow SumUppers to efficiently innovate, build and run our products and services at scale.

We’re looking for a Senior Backend Engineer to join the Platform tribe in our Berlin office to build a unified communication platform, that enables business areas to generate timely outbound messages at scale to targeted audiences, to the most effective channels, and track the interaction end-to-end. 

The unified communication system will include a consolidated notification gateway - a middle service that manages the logic for different channels and removing the nuances related to tools for Squads & universally applied updates.


What you’ll do 

  • Help build a consolidated notification gateway
  • Build a central communication infrastructure, that will be used as a platform SumUp-wide cross-teams and cross-tribes
  • Support the high-level monitoring of service usage, deliverability, and API response codes
  • Write high quality, testable code, used by millions of people daily
  • Collaborate with other engineers, designers and product managers in your team and across other teams to develop simple-to-use and delightful solutions for our teams
  • Mentor other engineers in engineering principles, design, and implementation


To accomplish this, you’ll use these tools

  • AWS/Kubernetes
  • RabbitMQ/Kafka
  • OpenAPI


You’ll be great for this position if 

  • You have a solid understanding of design principles and creating clear and predictable REST APIs
  • You have experience with relational databases, preferably Postgres
  • You’re familiar with or have an interest in DevOps topics, such as working with AWS, Docker, Kubernetes, and/or Jenkins
  • You have a mindset towards scalability and resilience without overengineering based on current challenges
  • You’re open to learning different tools, frameworks and languages to get the job done
  • You have 3+ years of backend experience with Go
  • You have a strong philosophy on testing and use this mindset to write robust, maintainable, clean code
  • You enjoy sharing your knowledge with others, whether it's through mentorship, pair programming, or whiteboard design sessions

Why you should join SumUp

  • You’ll work in an exciting and complex domain, affecting the everyday lives of millions of merchants
  • You’ll collaborate with other talented people in designing and implementing solutions that delight and empower our merchants to pursue their passions
  • We’re a truly global team of 2000+ people from 60+ countries, spread across 3 continents
  • We get together regularly for breakfasts, team events, office parties and sports.


About SumUp

We believe in the everyday hero. Those who have the courage to follow their passion and who have the strength and determination to realise their dreams.

Small business owners are at the heart of all we do, so we're creating powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America, and the United States work together to ensure that small business owners can be successful doing what they love.  

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by Company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.