Android Full-stack AI Engineer

Temporary, Full-time · Amsterdam

About Fairphone

Fairphone is more than just a company - we are a global leader in sustainable, modular electronics, on a mission to change the electronics industry from the inside out. Built on strong social and environmental values, we are a diverse and inclusive team from all walks of life creating market consumer electronics that make a real impact.

At Fairphone, you will find a supportive and safe space where everyone can be themselves, collaborate openly, and have the freedom to learn and grow - because that’s how we innovate and drive change together!

So… are you a proactive, self-motivated team player who loves taking initiative and bringing positive energy? Do you thrive in a fast-moving start-up or scale-up environment? Are you a great communicator who values collaboration and embraces different perspectives? And most importantly, do you feel a strong connection to Fairphone’s mission and values? If you're nodding along and thinking, “Yes, that’s me!”, then check out our vacancy below!

Please know that we acknowledge that we are living in a time where the use of AI can bring many efficiencies and support. However, we want to know the real YOU. Please try to limit the use of AI tools to generate answers to the application; we value authenticity and encourage you to use your creativity!

Location: Amsterdam (you should have the right to work in the Netherlands)
Hours: 32-40 hours per week
Contract duration: 6 months
Deadline to apply: We review applications on a rolling basis. Please apply as soon as possible.

About your role

This is a unique opportunity to join our Software Engineering team, where you will be instrumental in developing cutting-edge, full-stack predictive maintenance features for our acclaimed mobile phones. You will drive the creation of sophisticated, data-driven systems designed to preemptively detect and mitigate hardware or software issues. This role signifies a critical strategic shift for Fairphone, moving the maintenance paradigm from reactive fixing to proactive, intelligent intervention, which will directly enhance the longevity and reliability of Fairphone devices, contributing measurably to our mission of building a more sustainable future for mobile technology.

Your profile

You feel a strong and intrinsic connection with Fairphone’s vision, mission and values.
You are hands-on, take initiative and see opportunities where others see issues, and apply them via constructive, creative thinking.
You love technical challenges.
You embrace diversity in thoughts, opinions, levels of seniority and backgrounds and feel good working with many nationalities in a multicultural environment.
You are passionate about improving the quality of our software. A small fix delivered to many people has a big impact.

Key Responsibilities & Objectives

Designing and developing new features for predictive maintenance for the Android platform to anticipate hardware failures (e.g., battery degradation, storage corruption, overheating), software glitches, or performance bottlenecks.
Architect, implement, and maintain the end-to-end stack—from the device kernel (data acquisition) to the cloud (model training/serving) and the Android application (user feedback/alerts).
Utilise real-time device data, advanced analytics, and machine learning models to accurately anticipate potential failures, degradation, or performance bottlenecks before they impact the user experience.
Take ownership of both the Android (Frontend) components, including user-facing predictive diagnostics and actionable insights, and the Backend infrastructure (Microservices) necessary for large-scale data ingestion, model serving, and continuous learning.
Clean and manage large datasets for model training.
Version, track, package, and deploy models into a production environment, treating ML models as first-class citizens in a CI/CD pipeline.
Unit and integration testing code for robustness, including edge cases, usability, and general reliability.
Bug fixing and improving application performance.
Collaborating with cross-functional teams to define, design, and ship new features.
Working with data sources and APIs.
Continuously discovering, evaluating, and implementing new technologies to maximise development efficiency.

Your Skills & Experience

Proven software development experience in Android front-end and back-end development.
You are a programmer and are comfortable with Kotlin.
You know about Compose.
Deep knowledge of the Android SDK.
Experience with working on Android framework and server-side technologies with Spring Framework.
Theoretical and practical knowledge of Machine Learning algorithms, Deep Learning concepts, and Neural Network Architectures.
Familiarity with major AI/ML Frameworks like TensorFlow and PyTorch.
Experience with Large Language Models (LLMs), including using and integrating APIs, and applying techniques like Retrieval-Augmented Generation (RAG)
You have experience/knowledge with working in an agile environment.
You have experience/knowledge working with software development tools such as Git, Gerrit, Gitlab and Jenkins.
Excellent debugging skills to solve challenging problems.
Experience working with remote data via REST, JSON and XML.
Experience with third-party libraries and APIs.
A solid understanding of the full mobile development life cycle.
You appreciate Free and Open Source software and want to collaborate with the community.

What Fairphone can offer you?

The opportunity to create an impact on the electronics industry around the world.
A diverse work environment full of international, passionate, warm-hearted team members.
25 paid holidays per year (based on a full-time contract) next to the other public holidays in the Netherlands. You’ll also get a day off on your birthday! Additionally, the longer you stay, the more holidays you get!
Daily, healthy lunch, organic FairChain coffee, and many more tasty things.
You will join Fairphone’s collective pension scheme, and we will contribute to building your pension.
You will receive a MacBook, Fairbuds, and a Fairphone as working devices.
Hybrid working model - We are remote-friendly, and you can work up to 60% of your time per month from home or any other location you want. We also contribute up to €250 for your home office set-up.
Public transport allowance – we fully cover your 2nd class commute from your home to the office
Bike allowance – We support you with a bike purchase of up to €300, and you’ll also have a yearly repair budget of up to €100! We also cover 23 cents per km for your biking distance from home to the office (or train station) and back!
Grow with us! We encourage you to develop at Fairphone. That’s why we’ll support your career goals with coaching (Inuka), trainings, workshops, or courses that you can join with your development budget.
Kitchen with beautiful views to the IJ waterfront.
There’s a gym and recreation and yoga rooms in the building where you can build healthy habits, stay active and have fun with your colleagues, as well as a subscription to our mental & physical well-being services (Inuka & Urban Sports)

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About us

DEI @Fairphone

At Fairphone, we care about people, planet and you. It’s natural that we see diversity, equity and inclusion (DEI) as an essential part of how we work together and do business.

We support and further strengthen our inclusive work environment and culture by more formally implementing various DEI efforts to ensure all Fairphoners feel included, respected, and supported.

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We are looking forward to hearing from you!

Thank you for your interest in Fairphone! Should you have difficulties with the upload of your data, please send an email to people@fairphone.com