Android Developer

We're looking for an Android Developer who takes responsibility and values building reliable, maintainable software.
Hybrid | Porto (Portugal) Full-time Cybersecurity & Defence
Who we are
Adyta is a Portuguese cybersecurity company based at UPTEC - University of Porto's Science and Technology Park.
Our proximity to cutting-edge research isn't a coincidence - it's how we stay at the frontier of what's possible.
Our core mission is digital sovereignty.
In a world where most communications infrastructure runs on foreign clouds and untrusted platforms, we build the alternative - technology that keeps sensitive conversations under the control of those who need it most.
We develop secure, high-assurance mobile and backend solutions for environments where reliability, privacy, and security are critical.
Alongside it, we deliver cybersecurity services and contribute to European and national defence R&D consortia at the frontier of quantum-safe communications.
We are a small, technically ambitious team - and we are growing.
The Android developer joining us will work directly on the product at the heart of what we do.
How You Will Make an impact
Be a key contributor to Android application, helping shape their architecture, development, and continuous improvement
Work closely with backend and design teams to deliver clean and maintainable solutions
Write high-quality, well-tested code and participate in code reviews
Ensure the app remains reliable, secure, and performant
Contribute ideas and improvements based on Android best practices
Maintain clear documentation to support team collaboration
Requirements
Degreein Computer Engineering, Computer Science or equivalent practical experience
Minimum 2 years of professional experience in Android development
Strong command ofKotlin and Java, with solid knowledge of Android SDK, app lifecycle and Jetpack components
Solid understanding ofAndroid architecture patterns- MVVM, Clean Architecture - and dependency injection frameworks
Experienced integratingREST APIs, handling asynchronous data flows, background operations and error handling
Experience with data persistence- storing and retrieving data efficiently and reliably
Writes unit and integration tests as a natural part of development, with a long-term view on product quality
Proficient with Git and comfortable in collaborative, cross-functional teams
Analytical thinker - questions assumptions, anticipates failure scenarios and backs decisions with evidence
Clear communicator in English and Portuguese, written and spoken
What can you expect from us?
Hybrid setup, 2 days per week - flexibility to balance focused work with in-person collaboration
Work-life balance - a sustainable pace;
we build for the long term, and so do our people
Additional days off- because we value your time to rest, recharge, and enjoy life outside work
Health Insurance- full coverage included from day one
Career growth - clear progression path in a company that promotes from within
Training & development - a personalised plan to keep you growing technically and professionally
Meaningful work - apply your skills on real products with real impact, not internal tools no one uses
Compensation- annual gross salary between€30,000 and €40,000, depending on experience, plusmeal allowance provided via meal card.