Senior/Staff Android Engineer

ExpressVPN; Aachen; Hybrid; EUR 50.000 - 70.000; Vollzeit

Zusammenfassung

A technology company in Aachen is seeking an experienced Android engineer with a passion for building high-quality applications and a solid understanding of clean code principles. You will collaborate with cross-functional teams to define and implement application architecture, ensuring performance and reliability in our Android apps. The ideal candidate will have experience in using Android toolkits like Jetpack Compose and a background in unit testing. We promote a culture of trust, transparency, and continuous learning.

Leistungen

Open and constructive feedback culture

Opportunity for career growth

Encouragement of learning through experimentation

Qualifikationen

• Solid understanding of OOP concepts and Clean Code principles.
• Proficiency in using Android toolkits and APIs.
• Experience with RESTful APIs and web services integration.
• Strong problem-solving and debugging skills.
• Experience with unit testing and TDD is highly valued.

Aufgaben

• Deliver high-quality code and contribute to architecture of Android applications.
• Collaborate with cross-functional teams to deliver new features.
• Implement unit tests to ensure code quality and reliability.
• Stay updated with trends and best practices in Android development.

Kenntnisse

Problem-solving

Collaboration

Debugging

Clean Code principles

Android toolkits

RESTful APIs

Ausbildung

Bachelor's or Master's degree in Computer Science or related field

Tools

Kotlin

Jetpack Compose

Dagger

Git

Jobbeschreibung

If you're a talented and experienced Android engineer with an appetite for learning, we want you to help us build a safer, more open internet for millions of people worldwide.

Who you are

You’re a natural at solving problems, and you have experience working on teams that know how to deliver results. You aren’t afraid of change, and you ask the questions that need to be asked. A lack of clarity is something you can’t settle for, and you voice your concerns when the balance between effort and impact seems off.

As someone with a growth mindset, you’re naturally collaborative and always willing to hear ideas from your colleagues. Likewise, you're willing to share your own knowledge and mentor others.

What you’ll do

You’ll be responsible for delivering high-quality code, implementing best practices, and contributing to the overall architecture and design of our Android applications. You’ll play a critical role in developing and maintaining our Android applications using Kotlin, ensuring high performance, responsiveness, and reliability. You can expect to:

• Help define and implement the application architecture, following clean architecture principles
• Collaborate with cross-functional teams, including product managers, designers, and backend developers, to conceive and deliver new features and enhancements
• Work closely with the UI/UX designers to create visually appealing and user-friendly interfaces
• Write clean, well-structured, and maintainable code following object-oriented programming (OOP) principles and best practices
• Implement unit tests and contribute to a test-driven development (TDD) approach to ensure code quality and reliability
• Stay up-to-date with the latest trends, technologies, and best practices in Android development and share knowledge with the team

We approach engineering through the following principles: Testing by default, always CI/CD, data and automation-centered, with security at the core It’s paramount for us to empower our engineers to make their own calls about the tools and technologies that best address the problems they are trying to solve.

What you’ll bring

• Solid understanding of object-oriented programming (OOP) concepts and Clean Code principles.
• Proficiency in using Android toolkits and APIs, including Jetpack Compose, Dagger, and Testing frameworks.
• Experience with RESTful APIs, JSON, and web services integration.
• Knowledge of software development lifecycle (SDLC) processes, including version control (e.g., Git), code review, and continuous integration.
• Demonstrated ability to write well-structured, modular, and maintainable code.
• Experience with unit testing and test-driven development (TDD) is highly valued.
• Strong problem-solving and debugging skills.
• Bachelor's or Master's degree in Computer Science, Engineering, or a related field is preferred

How you’ll succeed

Your success in this role will be measured by:

• Your capacity to consistently develop and deliver Android applications that meet or exceed quality standards, are bug‑free, and enhance user experience
• Your skill in effectively addressing complex technical issues, optimizing performance, and ensuring the scalability and robustness of our Android apps
• Your ability to design and implement technical solutions while staying ahead of industry trends
• Your contributions to the growth and development of the Android development team through mentoring junior engineers, sharing knowledge, and facilitating a collaborative and innovative environment
• Your role in achieving key project milestones, including successful app launches, updates, and integrations that improve our mobile app's functionality and user engagement
• Your impact on user satisfaction as reflected in store ratings, reviews, and feedback

How we’ll support you

We believe in fostering an environment that empowers decision‑making at all levels. Our culture is rooted in the inverted pyramid approach, where the engineers, who have a deep understanding of the product and the customers, are the ones who have the knowledge and the authority to make impactful decisions.

• We treat every team member with respect and promote open and constructive feedback, ensuring a culture of trust and transparency
• We encourage learning through experimentation and provide a safe space for everyone to learn from their experiences
• Our managers are dedicated to facilitating career growth and creating an environment that attracts and supports high‑performing engineers

ExpressVPN, a Kape Technologies company, is an equal opportunity employer. We promote equal recruitment and employment opportunities, and do not discriminate based on gender identity and/or expression, age, race, color, disability, culture, religion or belief, family and/or marital status, sexual orientation, or other characteristics protected by applicable law. We celebrate a diverse and inclusive work environment in which applicants and employees are treated with respect and dignity, and excel based on personal merit, qualifications, experience, and performance.

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Before you apply

• At the moment, we do not sponsor visas in the EU. For Hong Kong, we require at least two years of working experience and a university degree a related field. For Singapore and the UK, we can only sponsor visas for mid‑career or above.
• Please upload your resume as a PDF and do not include any salary or compensation information in it.