Senior Backend Software Engineer (Golang) - Platform

The Communications Squad is responsible for self-service communications across SumUp, including SMS, E-Mail, Push Notifications, and WhatsApp.

Presently, we send approximately a billion messages per year across the SumUp ecosystem, with ambitious plans to scale the scope and volume of these messages in the coming years.

In addition to messaging, our focus extends to user-related topics such as promotions and recommendations.

As part of the Platform Tribe at SumUp , we belong to a group of squads responsible for developing and owning systems designed to accelerate product teams throughout SumUp.

Consequently, we address the needs of both our internal teams and the end users they serve.

To thrive in this role, we are seeking a Senior Backend Engineer eager to immerse themselves in a product domain while considering the engineering requirements of a high-volume service.

We are actively engaged in critical infrastructure with significant potential for expansion, making the balance between quality engineering and feature delivery crucial to the success of this role.

What you’ll do :

Develop, deploy, and maintain services associated with Messaging and Promotions using Golang

Enhance reliability through the implementation of tooling and adherence to best practices for monitoring, alerting, and traceability

Take part in discussions and evolutions of our microservices architecture with a focus on balancing scalability with flexibility and developer experience

Collaborate with cross-functional teams to design, develop, and implement scalable and reliable solutions

Mentor engineers and contribute to the continuous learning culture within the team

Establish and uphold high standards for code quality and security

This role will be great if you have the following :

7+ years of experience as a Backend Engineer, specializing in the maintenance of high-traffic backend services

Experienced in Golang

Solid grasp of code quality fundamentals, particularly in automation aspects such as testing, linting, and formatting

Well-versed in API design, particularly RESTful APIs

Familiarity with our observability stack, including Grafana, Prometheus, and Honeycomb

Possesses a product-focused mindset with a strong emphasis on creating impactful solutions

Proven mentorship experience, guiding and developing other team members

As a plus :

Previous experience within the Messaging domain

Experience with Event-Driven Architecture

Previous experience with Message Queues or Event Stores (RabbitMQ, SQS, Kafka)

Why you should join SumUp :

Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office.

This involves an office-first setup

Commitment to Diversity and Inclusion : Be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced

A dedicated annual L&D budget of €2, for attending conferences and / or advancing your career through further education

Enrolment onto our VSOP program : You will own a stake in SumUp’s future success

A corporate pension scheme where we match up to 20% of your contributions

30 Days Sabbatical : Enjoy the unique opportunity to take a well-deserved break with our 30 days sabbatical benefit after completing 3 years of employment with SumUp

Referral Bonus : Earn additional rewards by referring talented individuals to join the SumUp team

Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, relocation assistance, subsidised office lunches

About us :

SumUp is a leading financial technology company, founded in with the goal of empowering small businesses around the globe.

We’re the financial partner of choice for more than 4 million merchants in over 35 markets. We collectively build, plan and fine-tune the technology that drives SumUp and empowers small businesses around the world.

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 business.

With a founders 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.

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 % 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.