Ahmet Cavus - Senior Android Developer

Q: Where is Ahmet based?

Ahmet is based in Duisburg, Germany .

Q: What languages does Ahmet speak?

Ahmet speaks the following languages: German (Native), Turkish (Native), English (Advanced), Arabic (Elementary) .

Q: How many years of experience does Ahmet have?

Ahmet has at least 14 years of experience. During this time, Ahmet has worked in at least 6 different roles and for 9 different companies . The average length of individual experience is 1 year and 5 months . Note that Ahmet may not have shared all experience and actually has more experience.

Q: What is Ahmet's latest experience?

Ahmet's most recent position is Senior Android Developer at enbw .

Q: What companies has Ahmet worked for in recent years?

In recent years, Ahmet has worked for enbw , Comdirect , Research Industrial Systems Engineering (RISE) GmbH , OTTO Group , Ahmet Cavus, and IT-Services u. Consulting .

Q: Which industries is Ahmet most experienced in?

Ahmet is most experienced in industries like Retail , Information Technology (IT) , and Banking and Finance . Ahmet also has some experience in Healthcare , Energy , and Transportation and Logistics .

Q: Which business areas is Ahmet most experienced in?

Ahmet is most experienced in business areas like Information Technology (IT) , Product Development , and Accounting . Ahmet also has some experience in Quality Assurance (QA) .

Q: Which industries has Ahmet worked in recently?

Ahmet has recently worked in industries like Information Technology (IT) , Retail , and Banking and Finance .

Q: Which business areas has Ahmet worked in recently?

Ahmet has recently worked in business areas like Information Technology (IT) , Product Development , and Accounting .

Recommended expert

Duisburg, Germany

Experience

Apr 2025 - Present

11 months

Senior Android Developer

enbw

Support in restructuring and designing the group's internal Android apps
Defining essential modules and implementing accessible components
Establishing agile approaches at an international level
Technologies & Methods: Kotlin, Android, JUnit 5, Koin, Azure DevOps, Android Studio, Git, Jetpack Compose, Coil, Flow API, Ktor, Coroutines, TypeScript, Node.js

Oct 2023 - Apr 2025

1 year 7 months

Senior Android Developer

Comdirect

Continuous development of the PhotoTAN app
Expanding the agile team and technically shaping user stories in requirements engineering
Participating in merge and build processes with Jenkins
Collaborating with backend developers to optimize the REST API
Integrating external SDKs to extend app functionality
Implementing accessibility features
Technologies & Methods: Kotlin, Android, JUnit 5, Hilt, Koin, Jenkins, Nexus, Android Studio, Git, Bitbucket, Jetpack Compose, Coil, Flow API, Ktor, Coroutines

Oct 2023 - Oct 2024

1 year 1 month

Senior Android Developer

Research Industrial Systems Engineering (RISE) GmbH

Developing the electronic patient record (EPA) in line with Gematik standards for health insurers and care providers
Integrating and maintaining the IAM SDK and UI module
Leading a dedicated team for integration, updates, and bug fixing
Developing a white-label app as a reference solution with flexible branding
Technologies & Methods: Kotlin, Android, IAM SDK, Hilt, Gematik standards, Android Studio, Git

Jul 2022 - Oct 2023

1 year 4 months

Senior Android Developer

OTTO Group

Enhancing white-label Android apps for Quelle, Ackermann, Baur, and Universal
Introducing dependency injection and setting up unit tests to ensure code coverage
Migrating to Hilt, Flow API, and Jetpack Compose
Coordinating technical teams in planning
Integrating an internal tracking service, including planning and rollout
Technologies & Methods: Kotlin, Android, Swift, YAML, SQLite, Git, GitLab, Android Studio, Xcode, Visual Studio Code

Sep 2021 - Present

4 years 6 months

Freelancer

Ahmet Cavus, IT-Services u. Consulting

Sep 2021 - May 2022

9 months

Developer

Kayahan GmbH

Digitization of the logbook for locomotive drivers
Concept phase and development of a Flutter web app in a team of 2 developers
Project duration: 8 months
Technologies & Methods: Flutter, Dart, Android, Swift, Firebase, Git, GitHub, Visual Studio Code

Nov 2020 - Jul 2022

1 year 9 months

Technology Consultant

ALDI Einkauf SE & Co oHG

Setup of the infrastructure for the ALDI Nord Android and iOS apps in Azure DevOps
Set up pipelines for Android and iOS together with a DevOps Engineer
Technical evaluation and selection of new development partners
Building cross-functional teams for Android and iOS development
Further development of the ALDI Nord Android app with Open API Spec, Kotlin, MVP, and RxJava
Onboarding new employees and introducing automated tests with Appium and BrowserStack
Technologies & Methods: Kotlin, Android, Swift, YAML, Room, SQLite, Azure DevOps, Android Studio, Xcode, Visual Studio Code, Git, Appium, BrowserStack

Apr 2018 - Nov 2020

2 years 8 months

Senior Software Engineer

adesso mobile solutions GmbH

Developed UI components and introduced UI tests for the Miele relaunch project
Created module libraries and distributed them via Artifactory and Bamboo
Designed and introduced Xamarin.UITest with comprehensive documentation
Built the backend structure for the Smart Shopping App using Node.js and Azure
Designed the REST API and domain model, generated categories from a nutrition database
Responsible for additional backend features and support of the client application
Developed hybrid Xamarin apps for the Vivawest customer portal, the Liebherr Bauma app, and the Ritz hardness tester app
Technologies & Methods: C#, Xamarin, NUnit, .Net Standard, Entity Framework Core, Node.js, Azure, Blob Storage, Mobile App Services, YAML, MSSQL, SQLite, Xamarin.UITest, Artifactory, Bamboo

Jan 2018 - Present

8 years 2 months

Developer

Ahmet Cavus, IT-Services u. Consulting

Developed and deployed the accounting software Verio Buchhaltung for socially engaged associations
Imported QIF format data using a custom QIF reader library
Implemented a Python-based data pipeline for data cleaning and preparation for donation receipts
Process steps: Ingest, Transform, Store / Publish
Continuous development and integration of AI support for optimized data analysis
Delivered via App Center
Technologies & Methods: C#, Xamarin, MAUI, NUnit, .Net, Entity Framework Core, Visual Studio 2022, Visual Studio Code, Git, GitHub

Sep 2011 - Apr 2018

6 years 8 months

Software Engineer

TeamWFP

New development of the real Services App using Xamarin Forms and .NET C# (MVVM)
Technical architect for digital receipts, PAYBACK, digital loyalty points, and backend REST API
Relaunched the real Android Services App with Java and core architecture design
Took over and enhanced the Kingchess correspondence chess platform with C# and ASP.NET
Developed the Kuntze Configurator as a Java Swing application
Created the real Drive Android App (MVC) and real Windows Phone App (MVVM)
Technologies & Methods: C#, Xamarin, Java, ASP.NET, Java Swing, Android Studio, Eclipse, Visual Studio, Mercurial, Git

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Retail (9.5 years), Information Technology (8 years), Banking and Finance (1.5 years), Energy (1 year), Healthcare (1 year), and Transportation (0.5 years).

Retail

Information Technology

Banking and Finance

Energy

Healthcare

Transportation

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (14.5 years), Product Development (14.5 years), Accounting (8 years), and Quality Assurance (2.5 years).

Information Technology

Product Development

Accounting

Quality Assurance

Summary

With over 13 years as a software developer, I have worked on various projects in companies and areas such as retail, cross-industry, healthcare, and banking. I have mainly focused on mobile application development and have expertise in both native and cross-platform development.

Teamwork, close collaboration with colleagues, and proactive responsibility are the keys to successful cooperation with project stakeholders and clients, which I especially focus on in my work. Based on this, I place great value on co-creation as a team, where WE are at the center. This leads to high-quality code.

In the future, I want to further expand my knowledge in AI with Python and in frontend development with TypeScript to gain new goal-oriented perspectives in software development.

Skills

Kotlin
C#
Typescript
Java
Dart
.Net
Native Android
Xamarin / Maui
Flutter
Ms Sql Server
Mongodb
Git
Android Studio
Visual Studio
Visual Studio Code
React
Wpf
Node.js
Junit
Nunit
Azure Devops
Bitbucket
Chai.js
Mockito
Scrum
Kanban
Rest
Graph Ql
Mvvm
Mvp
Mvu

Languages

German

Native

Turkish

Native

English

Advanced

Arabic

Elementary

Education

Oct 2008 - Jun 2012

Bachelor of Science · Applied Computer Science

Oct 2005 - Jun 2008

Secondary Level Teaching Degree

High School Diploma (Abitur) · Duisburg, Germany

Certifications & licenses

Generative AI For Software Development

Deeplearning.AI

Azure Fundamentals AZ-900

Microsoft

Cyber Security Awareness

SoSafe

Profile

Created

November 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Ahmet based?

Ahmet is based in Duisburg, Germany.

What languages does Ahmet speak?

Ahmet speaks the following languages: German (Native), Turkish (Native), English (Advanced), Arabic (Elementary).

How many years of experience does Ahmet have?

Ahmet has at least 14 years of experience. During this time, Ahmet has worked in at least 6 different roles and for 9 different companies. The average length of individual experience is 1 year and 5 months. Note that Ahmet may not have shared all experience and actually has more experience.

What roles would Ahmet be best suited for?

Based on recent experience, Ahmet would be well-suited for roles such as: Senior Android Developer, Freelancer, Developer.

What is Ahmet's latest experience?

Ahmet's most recent position is Senior Android Developer at enbw.

What companies has Ahmet worked for in recent years?

In recent years, Ahmet has worked for enbw, Comdirect, Research Industrial Systems Engineering (RISE) GmbH, OTTO Group, Ahmet Cavus, and IT-Services u. Consulting.

Which industries is Ahmet most experienced in?

Ahmet is most experienced in industries like Retail, Information Technology (IT), and Banking and Finance. Ahmet also has some experience in Healthcare, Energy, and Transportation and Logistics.

Which business areas is Ahmet most experienced in?

Ahmet is most experienced in business areas like Information Technology (IT), Product Development, and Accounting. Ahmet also has some experience in Quality Assurance (QA).

Which industries has Ahmet worked in recently?

Ahmet has recently worked in industries like Information Technology (IT), Retail, and Banking and Finance.

Which business areas has Ahmet worked in recently?

Ahmet has recently worked in business areas like Information Technology (IT), Product Development, and Accounting.

What is Ahmet's education?

Ahmet holds a Bachelor in Applied Computer Science.

Does Ahmet have any certificates?

Ahmet has 3 certificates. These include: Generative AI For Software Development, Azure Fundamentals AZ-900, and Cyber Security Awareness.

What is the availability of Ahmet?

Ahmet is immediately available full-time for suitable projects.

What is the rate of Ahmet?

Ahmet's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.