Senior Android Engineer- Hardware at SumUp | BE, DE | Rezi

Senior Android Engineer- Hardware at SumUp

Senior Android Engineer- Hardware

SumUp · BE, DE

1 months ago

Senior Android Engineer- Hardware

SumUp · BE, DE

2 months ago
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About the Role

Join the Hardware tribe to build and maintain Android applications for secure and reliable card readers, SDKs, and the SuperApp. You will solve complex problems related to Bluetooth connections, online/offline payment flows, and Tap to Pay functionality, with an opportunity to deepen your Android engineering expertise in a critical fintech space.

Responsibilities

  • Build and maintain Android applications for card readers, SDKs, and the SuperApp, covering both new features and improvements to existing systems
  • Work on Bluetooth Low Energy connections, online and offline payment flows, and Tap to Pay functionality
  • Refactor and modernise legacy code to improve reliability, performance, and maintainability
  • Contribute to testing practices, including unit and integration tests, to raise overall code quality
  • Collaborate with peers and stakeholders across the team to manage priorities and shape solutions to technical challenges

Requirements

  • Several years of professional Android development experience, with solid proficiency in both Java and Kotlin
  • Strong knowledge of clean architecture principles and hands-on experience maintaining Android SDKs
  • Experience of writing unit and integration tests, and comfort refactoring legacy code without breaking existing functionality
  • Familiarity with CI/CD pipelines, such as GitHub Actions, and an interest in improving build and release processes
  • Ability to adapt to ambiguity and shifting priorities, with strong communication skills for working independently with stakeholders

Skills

  • Android development
  • Java
  • Kotlin
  • Clean architecture
  • Android SDKs
  • Unit testing
  • Integration testing
  • CI/CD pipelines
  • GitHub Actions
  • Bluetooth Low Energy
  • Communication skills

Location

  • Berlin

Work Type

  • Office-first

Experience Level

  • Several years of professional Android development experience

Benefits

  • Enrolment onto our Virtual Stock Option programme
  • A dedicated annual L&D budget of €2000 for your individual development
  • A corporate pension scheme where we match up to 20% of your contributions
  • Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
  • Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
  • Break4me: 1-month sabbatical after 3 years of service
  • Referral Bonus

About the Company

  • SumUp is on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive.
  • Today, over 4 million businesses in 38 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships.
  • Our diverse team of over 3,000 SumUppers from over 90 nationalities are united by global collaboration and an innovative mindset.
  • We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth.
  • Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported.

Equal Opportunity

  • SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce.
  • We don't make hiring or employment decisions based on 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.
  • Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited.