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Senior Software Engineer (Golang) - Payments Self-service

Sofia, Bulgaria · Backend

SumUp started conquering the world of small merchants with mPOS card acceptance solutions in 2012. Today we offer a comprehensive product portfolio including SumUp card & account, invoicing, gift cards, online store & online payments, and more.

The Payments Self-service Squad is enabling the global SumUp merchants to run their business as smoothly as possible by providing them with accessible and intuitive self-services for accepting card payments. We strive to turn transactions into interactions and are inspired by creating products which our customers love. If you are excited by problem-solving and motivated to make an impact for our million merchants, come join our squad.

As a Backend Engineer, you’ll lay the foundations of our new services and lead the migration of our legacy ones to a more resilient, more scalable tech stack. You’ll also share your expertise to help us optimize product discovery and delivery, and elevate engineering practices.

What you’ll do

  • Actively participate in selection of new tools and technologies

  • Build capabilities which bring value to millions of users

  • Support existing features and services

  • Constantly set and actualize best practices with the team

  • Collaborate with product designers, product managers and other key stakeholders to clarify problems, outline opportunities, prototype solutions and build awesome products

  • Play a key role in the entire development lifecycle, from product discovery to delivery 

You’ll be great for this position if

  • You have a Bachelor's degree or equivalent experience in Computer Science/Information Technology;

  • You are proficient in one or more of the following languages: Golang, Java

  • You have experience with microservices architecture and Restful APIs

  • You have experience with SQL (PostgreSQL) and/or NoSQL storages

  • You have solid debugging, optimization and problem-solving skills

  • You are self-motivated, proactive and know when a rule should be broken

  • You have the ability to write clear, concise and testable code that your teammates can understand and build upon

  • You are fluent in English - you'll be part of a truly global company! 

Awesome if you 

  • Have experience with Ruby or Ruby on Rails

  • Have experience with Docker and/or Kubernetes

  • Feel comfortable with Unix/Linux environments

  • Enjoy mentoring fellow engineers and love sharing knowledge

  • Have previous experience in the payment industry

Why you should join SumUp

  • You’ll play a key role in a scale-up that in turn is part of a truly global team of 3200+ people from 80+ countries, spread across 4 continents.

  • You'll have the opportunity to make an impact irrespective of your job description. You'll have the space to drive your career and take ownership of projects.

  • You’ll receive 25 days’ paid leave, increasing with tenure, and paid vacation for certain occasions. Also, our favorite 1 month of paid Sabbatical vacation.

  • You’ll receive an individual learning budget and can take up to 10 days educational leave to expand your skillset.

  • You'd enjoy other great benefits such as additional health and life insurance, online fitness classes, subsidized Multisport card, Babbel language platform subscription, free shuttle buses from Joliot-Curie metro station, a long list of discounts and more.

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, color, 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.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.


Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.