Senior Android Developer (m/f/d)



Job Family


We show the world what people want.

Join GfK and help us shape tomorrow. As an NIQ company, we are the world's leading consumer intelligence firm, delivering the Full View™ on consumer behavior. We work to enable manufacturers and retailers better understand what consumers really want. Our name has inspired trust for over 89 years because we take pride in discovering new pathways to sustainable growth for our clients, our people, and our planet.

We are always looking for open-minded people who will grow with us, push boundaries, and pioneer disruptive methods in market research, data science, technology, and AI. If you share this passion to drive things forward and the integrity to insist on doing things the right way, we'll equip you to take your future into your own hands and play a leading role in our story.

Job Description

We are looking for you joining our Digital Audience Measurement team: Our mission is to measure the digital ecosystem of specific media industries to boost competition in the market. No matter what type of content - we provide the market with insights on who is reading, listening or watching what and how their audience is structured so that they can make to most out of thier websites and apps. 

Sounds too abstract? No worries, just see us as a kind of Google Analytics SDK equivalent for audience measurement who helps thier clients to better monetize thier offerings. Read more about our product here:

We are a cross-functional Scrum team, located in Bulgaria, Hungria and Germany while our mission covers many more countries around the world. Every team member has the chance to rotate into the others' job and -thus- to get involved with all technologies in use:

  • TypeScript/JavaScript, Android Java, Kotlin, Swift

  • Scala, Phyton, Enterprise Java

  • GitLab, Sonarqube, Browserstack, Grafana

  • Terraform & lots of AWS services like EBN, Cloudfront, Athena, Glue, Airlow

You will be...

  • extending our measurement SDKs running on apps for Smartphones, Tablets & TVs

  • working mainly on Android but you will also help out on iOS & TypeScript from time to time

  • working more on business logic and less on visual components or user interfaces

  • working as part of a cross-functional team of a Big Data engineer, a SRE, TypeScript, Android, iOS SDK Developers, a Scrum Master and a Product Owner.

  • working as part of an international team (Bulgaria, Hungria, Germany) and an even more international company

  • co-leading the team in a technical manner and setting the architectual runway

  • the go-to-person for other advanced team members having technical issues 

  • promoting and sharing knowledge around app development, specifically on mobile platforms

  • analysing complex issues independently

  • enabled to also look into other fields of software engineering as TypeScript, JavaScript, Scala, Enterprise Java, Terraform & AWS cloud services

You have…

  • 7+ years of experience in programming in general

  • serious experience in Android based developments

  • experience in at least one additional programming language: TypeScript/JavaScript, Swift

  • experience with tools like Gradle, Xcode, Cocoapots, SPM, GitLab, GitHub

  • experience publishing apps to the Google Play Store and Apple App Store

  • a good understanding of how programming languages, apps and mobile operating systems are functioning under the hood

  • a good overview of design patterns & best practices

  • experience with async & non-blocking programming and multi-threading

  • experience with training, teaching and mentoring other members

  • good level of English

It would be a great addition if you have experience with…

  • TypeScript, JavaScript, Enterprise Java, React Native, AngularJS, WebApps, Swift

  • FireTV Stick, AndroidTV, AppleTV, Chromecast

  • Kaltura, Bitmovin, Shaka, Google IMA, TCF IAB

  • AWS tools like Cloudfront, Lambda

  • CI/CD pipelines and tools like Bamboo, Bitbucket or GitLab 

  • media companies, advertising or market research industry 


  • Exciting work environment that brings people together

  • Use of the latest digital technologies

  • Initial and ongoing trainings to support your development

  • Opportunities for personal and professional growth

  • Flexible working hours and home office

  • 3 additional non-working days annually

  • Food vouchers

  • Health insurance

  • Discount program with external vendors

  • Eco friendly travelers are welcome to the office – parking places for bikers and free card for public transportation are available to all employees

  • Last but not least – GfK Sofia office is located close to the city centre and easily accessible from any point by public transportation – 47A Tsarisgradsko Shose Blvd

All documents will be treated in the strictest confidentiality.

Only short-listed candidates will be invited for an interview.


We are an ethical and honest company that is wholly committed to its clients and employees. We are proud to be an inclusive workplace for all and are committed to equal employment opportunity, focusing on all of our employees reaching their full potential. 

We respect and value every employee regardless of race, ethnicity, gender, sex, sexual orientation, age, personality, experience, culture, faith, socio-economic status, or physical or mental disabilities.

We endorse the core principles and rights set forth in the United Nations Declaration of Human Rights and the Social Charter of Fundamental Rights of the European Union, promoting the universal values of human dignity, freedom, equality, and solidarity.

Learn more about how we are driving diversity and inclusion in everything we do on:

At GfK we work collaboratively with our colleagues but offer a flexible working approach, including dividing our time between office & remote working as well as the opportunity to flex our working hours around team core hours.

We offer an exciting work environment that brings people together. We encourage an entrepreneurial and innovative spirit and make use of the latest digital technologies. We are looking for self-starters, who accept challenges and create solutions.

Can there be a better place to take center stage in the digital revolution? We are excited to get to know you!

Posted: 16 days ago

City: Sofia

Work Area: Technology

Job Time: Full Time

Requisition ID: R00023514