Senior Backend Engineer (Elixir & Go)

SumUp enables businesses to get paid easily, process orders quickly, sell online instantly, and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience thrive!

Joining the Global Bank tribe means you’ll play a key part in helping us build SumUp's own digital merchant bank. You’ll be part of a global, autonomous, cross-functional team that takes an aspect of our product and perfect it from concept to execution. 

As a Senior Backend Engineer (Elixir & Go), you'll work on a highly-available, high-throughput platform that handles money movement through various payment systems like SEPA, BACS, Pix, Mastercard, Apple/Google Pay. Aside from building features, you'll consolidate systems with our global bank platform and ensure the reliability of our merchant banking systems.We encourage the exploration of new languages and services, empowering our teams to choose the best technology for new projects. Currently, our Tribe is using Elixir, Golang and Kotlin; Kubernetes, Terraform, Kafka, Postgres, AWS, and Rest APIs.

If you'd like to gain experience building business accounts, card payment, and transfers products across Europe and Brazil for SumUp's Global Bank, join us and be part of this exciting journey!

What You’ll Do

• Collaborate with other software developers, QAs, DevOps engineers, designers, product managers and other key stakeholders to design and implement backend services and APIs, clarify problems, outline opportunities, prototype solutions, ensure smooth deployment, continuous integration, and support existing functionalities
• Work in a global context with teams in Europe, the US and Latin America
• Provide comprehensive documentation and high test coverage
• Actively participate in selection of new tools, technologies and processes, code reviews and pair programming with other software engineers
• Help your team deliver business value by taking decisions related to the backend and actively participating in product discussions
• Build capabilities that bring value to millions of users worldwide
• Constantly adopt and actualise best practices with the team

You’ll be great for this role if

• You have professional experience as an Elixir Engineer
• Strong experience in software architecture and application design, with a track record of making architectural decisions and a understanding of fundamental system architecture and API design (RESTful and event-driven services)
• You feel comfortable working with SQL databases
• Good understanding of modern cloud technologies (AWS, Docker, Kubernetes)
• You have experience with CI/CD products such as GitHub Actions and ArgoCD
• You have experience with event / messaging platforms such as Kafka or RabbitMQ
• You have solid debugging, optimization and problem-solving skills
• You love to mentor people and share knowledge
• You have a passion to write clear, concise and testable code that your team can understand, maintain and improve

Any of the following would be considered a plus

• Experience with monitoring tools - Prometheus, Grafana, Honeycomb
• Experience with infrastructure as a code tools like Terraform
• Experience in the fintech industry

Why you should join SumUp

• The opportunity to work on large scale fintech products used by millions of small businesses around the world
• Work on a high impact squad that is at the core of the Bank Tribe
• A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education
• Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success
• A corporate pension scheme 
• You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more
• You’ll attend global offsites and/or hackathons.
• Join a truly global SumUp team of 3200+ people from 80+ countries, spread across 4 continents

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.