(Senior) Android Engineer

About the role

As an Android Engineer, you will be part of one of our small and highly skilled cross-functional teams and work together with Product Managers, Backend Engineers, iOS Engineers, Product Designers, and more. You will also be part of and collaborate on a global level with the broader Mobile chapter.You will deal with a variety of topics ranging from improving reliability of Bluetooth implementation within the Android SumUp app and the SumUp SDK, to implementing user-facing features such as screens to interact with card readers, to collaborating on developing technical roadmaps.

To be successful in this role you should be able to follow good software engineering principles, write clean code and tests, and be open to constantly learning and improving your craft. It will be expected from you to not only ship features, but also to contribute to the decision making process.

You should be a mobile engineer with a product mindset who can fully own the features you are working on and remain flexible with changing priorities.

The role is based onsite in our office in Berlin with a hybrid model of work.

About the team

You have probably used our card readers

to buy a cappuccino or pay your hairdresser already. In Hardware, we are passionate about creating these beautifully designed card payment devices and accessories that enable our merchants to start, run, and grow their own businesses. In doing so, we deal with a diverse range of engineering topics - industrial and electronic design, embedded systems, all the way to mobile apps and backend services.

We believe in open communication and constant learning over strict rules. If you’re looking for the chance to innovate and help millions of small independent merchants succeed - join us!

Curious to know how it feels working in the Hardware team? Check out this out!

What you’ll do

You’ll shape the card reader experience of merchants who are using the Android App on a daily basis.

In the first few weeks, you’ll dive into the code and learn how to create clean, composable components in our codebase. You’ll use this knowledge to start developing and refining features. You’ll learn how we write tests, how we manage Bluetooth communication, and how we keep performance optimal.

In the first three months, you’ll develop major features that impact our merchant base. You’ll work closely with product and design departments to build features that are maintainable, usable, and beautiful. You’ll help us rethink problems we’ve solved before in a different way as requirements evolve.

By the end of your first year, you’ll have a wealth of knowledge about our complex problem domain, as well as its implications in the interface and in the backend - and how to manage it in a clean way. You’ll have launched numerous features in the Android App as well as in the Android SDK.

You’ll be great for this position if:

• You’re comfortable with Kotlin, Java, and the Android framework. You also know how to get things done on the command line
• You know what to test, why to test it, and how to write flexible tests that won’t break
• You care about user interaction, usability, and have attention to detail
• You strive for clean code, but also know how to be pragmatic when needed
• You love coding and take the time to reflect on all aspects of your implementation, be it the frameworks, languages, or processes
• You’re not afraid to use Google or ask for help when something is beyond your grasp
• Your precise communication skills are well suited to working in a distributed team
• You’re familiar with Agile and Product development practices

Why you should join SumUp

• Opportunity to work with a truly global, multicultural team (we are 3000+ people from 80+ countries, spread across 4 continents)
• 28 days’ paid leave
• Competitive salary package and virtual stock option programme
• Flexible working hours
• Learning & development budget for attending conferences and external training
• SumUp Corporate Pension Scheme
• Wellness benefits: in-house fitness classes with Fitness Matters, in-house Yoga teacher, gym in the office, football & running teams, subsidized Urban Sports Club
• A lot of other cool benefits such as Bike leasing, a Subsidised Public Transport Card, a Language Learning platform/courses, Kita placement assistance, relocation assistance, 2x per week subsidised office lunches and a brand new beautiful place to work in the heart of Berlin!

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.