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Junior Backend Engineer (Kotlin/Java) - Global Bank

Sofia, Bulgaria · Backend

As a Backend Engineer in the Global Bank Tribe, you’ll be part of the team which builds SumUp's own digital bank to make our customers more successful in what they like doing. You’ll be part of a global, autonomous, cross-functional team that can take an aspect of our product and perfect it from concept to execution.

We are looking for a new team member for our Transfer Excellence squad which is responsible for driving quality-of-life improvements in our merchants' transfers experience.

We are transitioning from a localized setup with regional banks to a unified global bank and will need backend engineers to join us in this journey. We are building our systems with event-driven microservices architecture.

Whether you are already comfortable with Kotlin or are eager to learn in the process, we welcome your application.

Our team is hiring at all levels. For Jr Developers the opportunity is available on-site only (Sofia).

What you’ll do

  • Work with a truly global tribe with cross-functional teams across Berlin, Cologne, São Paulo, Sofia and Vilnius.

  • Maintain, but also join in the design discussions of our back-end services.

  • Work in a global context collaborating with teams in Europe and Latin America.

  • Participate in API design discussions and learn how to implement for both internal APIs and those exposed to our third-party integrators.

  • Help your team to deliver business value by taking decisions related to back-end and actively participating in the product discussions.

  • Collaborate with other software developers, QA and DevOps engineers to ensure smooth deployment, continuous integration, and support for the software that we deliver.

You’ll be great for this role if

  • You are recently finished your degree in Computer Science or at least 1+ year of similar tertiary course

  • You are eager to learn Kotlin and have first experience as a Backend Engineer.

  • You have experience with JVM based programming languages.

  • You’re familiar with Spring, Micronaut or another web MVC framework.

  • You are eager to learn and have a passion for clean, maintainable and testable code.

  • You have a good understanding of software architecture and application design.

Why you should join SumUp

  • You’ll receive 25 days’ paid leave, plus 1 additional day for each year of employment.

  • You can take up to 10 days’ educational leave to expand your skill set.

  • A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education

  • We offer additional health insurance, a subsidized Multisport card, free shuttle buses from Joliot-Curie metro station and other great benefits.

  • You’ll participate in weekly Lunch & Learn sessions, where ideas are shared and discussed over company-sponsored lunch.

  • Hack Days: Every second Friday you’ll get the entire day to learn, explore and experiment, or work on side-projects.

  • You’ll attend global offsites and/or hackathons.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we create 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 the small business owners we partner with 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.

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.