I love to build native mobile applications with an emphasis on beautiful interfaces. I passionately follow the latest technology trends. If not coding, you can find me playing guitar in my band or producing tunes in my home studio. Currently my main focus is on mobile development, balancing technical responsibilities with a strong interest in usability and user experience, enjoying thinking about design alongside development. Over the years, I have explored functional and reactive programming depths, studied Haskell basics, and apply functional principles in my daily programming. I thrive on creating seamless and intuitive UX flows that polish every detail to pixel-perfect precision.

Alexander van der Werff

I love to build native mobile applications with an emphasis on beautiful interfaces. I passionately follow the latest technology trends. If not coding, you can find me playing guitar in my band or producing tunes in my home studio. Currently my main focus is on mobile development, balancing technical responsibilities with a strong interest in usability and user experience, enjoying thinking about design alongside development. Over the years, I have explored functional and reactive programming depths, studied Haskell basics, and apply functional principles in my daily programming. I thrive on creating seamless and intuitive UX flows that polish every detail to pixel-perfect precision.

Available to hire

I love to build native mobile applications with an emphasis on beautiful interfaces. I passionately follow the latest technology trends. If not coding, you can find me playing guitar in my band or producing tunes in my home studio. Currently my main focus is on mobile development, balancing technical responsibilities with a strong interest in usability and user experience, enjoying thinking about design alongside development.
Over the years, I have explored functional and reactive programming depths, studied Haskell basics, and apply functional principles in my daily programming. I thrive on creating seamless and intuitive UX flows that polish every detail to pixel-perfect precision.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

Language

Dutch
Fluent
English
Fluent
German
Intermediate

Work Experience

iOS Developer at Tikkie
January 1, 2025 - Present
Contributed to the development of a new product set for release with a focus on building and enhancing payment features. Used Clean Swift architecture and continuous integration with Fastlane and Ruby.
iOS Developer at DigiD entity
December 31, 2024 - August 20, 2025
Worked on core app and SDKs for internal integration and client-facing use cases. Enhanced CI/CD pipelines using Ruby, Fastlane, and GitLab for improved automation and deployment processes. Utilized frameworks and libraries such as Firebase, R.swift, and UIKit.
iOS Developer at DPG NU.nl
September 30, 2022 - August 20, 2025
Developed the NU.nl iOS app with UIKit, and contributed to Backend-for-Frontend (BFF) architecture using TypeScript and GraphQL. Ensured consistent rendering and handled server-side business logic.
iOS Developer (and some Android) at Air Hub
December 31, 2024 - August 20, 2025
Developed iOS and some Android apps for drone operations management. Responsible for roadmap planning and creating technical specifications. Helped developers with feature implementations. Used SwiftUI, UIKit, Composable architecture, Kotlin Coroutines, Koin, and Android Views. Played a significant role in developing Air Hub's flagship app across platforms.
iOS/Android Developer at Topicus
September 30, 2021 - August 20, 2025
Developed the Jaaah app for both iOS and Android. Created a custom web app embedder designed to intercept web requests for native credential verification. Included biometric authentication for enhanced security. Replaced parts of a web app with native implementations to improve performance.
iOS Developer at Coder Society - Yunari
May 31, 2020 - August 20, 2025
Developed an iPhone app for fintech startup Yunari (Deutsche Bank, Berlin). Used MVVM app architecture following SOLID principles, with strict work processes, high test coverage, and two reviewers per pull request. Minimized third-party library dependencies.
iOS Developer at PVH
December 31, 2018 - August 20, 2025
Developed an iPad app for Tommy Hilfiger store of the future. Managed complex e-commerce infrastructure challenges connecting front-end components.
iOS Developer at Semmelwise & Company
December 31, 2018 - August 20, 2025
Developed an iPhone app analyzing 'interbeat interval' data using the Pulse ON watch for a VPRO TV show. Connected Bluetooth peripherals with an iOS app, stored data in database, and batch uploaded data to backend.
iOS Developer at Woost Technologies
September 30, 2017 - August 20, 2025
Developed an iOS app for Heineken connecting front-end to custom hardware with WiFi. Managed dynamic UI reflecting hardware state.
iOS Tech Lead at Mobiquity / MyOrder
July 31, 2017 - August 20, 2025
Developed a fueling iOS app and Swift client SDK for MyOrder service (Rabobank). Connected to platform services, managed fuel states with complex testing and custom UI animations based on app states.
iOS Tech Lead at Mobiquity
December 31, 2016 - August 20, 2025
Developed an iOS app for Rabobank requiring a complex security model acting as a proxy between two backend systems that could not communicate directly.
iOS Developer at TNT Express
October 1, 2015 - Present
Developed new iOS e-commerce products.
iOS Developer at Sanoma Uitgevers
September 30, 2015 - August 20, 2025
Worked on NUSport and the new NU.nl iOS app.
iOS Developer at Streamio
September 1, 2015 - Present
Developed an SDK for Stream analytics.
iOS Developer at METheerhugowaard
May 1, 2015 - Present
Native development for an enterprise app.
Software Engineer at Xaton
December 31, 2012 - August 20, 2025
Built web applications for clients like KPN and Ziggo. Acted as technical lead for multi-platform services app with Sencha Touch. Developed iOS apps like 'Ziggo TV gids' and an ANWB widget. Built rich web-based UI using Backbone, RequireJS, Node.js, Handlebars, SCSS, and jQuery.
Software Developer at Backbase B.V.
December 31, 2008 - August 20, 2025
Integrated Backbase client software with Java frameworks like Struts and JSF.
Ajax Consultant / Front-end Engineer at Backbase B.V.
January 1, 2006 - August 20, 2025
Designed and delivered complex GUIs for major clients such as ABN/AMRO, KPN and ING. Involved XHTML, CSS, JavaScript, XML, XSLT, XPath and knowledge of Java/.NET/PHP.
iOS Developer at Tikkie
January 1, 2025 - Present
Contributed to the development of a new product set for release with a focus on building and enhancing payment features. Used Clean Swift architecture and CI/CD workflows with Fastlane and Ruby.
iOS Developer at DigiDentity
December 31, 2024 - August 20, 2025
Developed the core app and SDKs for both internal integration and client-facing use cases. Enhanced CI/CD pipelines using Ruby, Fastlane, and GitLab for improved automation and deployment processes.
iOS Developer at DPG NU.nl
September 30, 2022 - August 20, 2025
Developed the NU.nl app and supported Backend-for-Frontend (BFF) work, mainly using TypeScript. Implemented server-side business logic and ensured consistent rendering.
iOS Developer (and some Android) at Air Hub
December 31, 2024 - August 20, 2025
iOS developer for the ASRV Vlieg Veilig app, contributing to its design and functionality, assisting Android development using Android Views. Played a significant role in the development of Air Hub's flagship app for both iOS and Android platforms. Responsible for roadmap planning and creating technical specifications, guiding developers with feature implementation.
iOS/Android Developer at Topicus
September 30, 2021 - August 20, 2025
Developed the Jaaah app for iOS and Android including a custom web app embedder designed to intercept web requests for native credential verification. Incorporated biometric authentication for enhanced security. The app initially used web views to render content and gradually integrated native implementations for better performance.
iOS Developer at Coder Society - Yunar
May 31, 2020 - August 20, 2025
Developed an iPhone app for the fintech startup Yunar (Deutsche Bank) in Berlin. Followed MVVM architecture with SOLID principles, maintained strict work processes including high code test coverage and two reviewers per pull request. Minimized third-party dependencies.
iOS Developer at PVH
December 31, 2018 - August 20, 2025
Developed an iPad app for the Tommy Hilfiger Store of the Future. Managed complex infrastructure in e-commerce environment to connect front-end with backend systems. Kept third-party library dependencies to a minimum.
iOS Developer at Semmelwise & Company
December 31, 2018 - August 20, 2025
Developed an iPhone app analyzing the 'interbeat interval' using the Pulse ON watch, integrating Bluetooth connectivity and batch uploading obtained data to backend.
iOS Developer at Woost Technologies
September 30, 2017 - August 20, 2025
Developed an iOS app for Heineken that connected the front-end to custom hardware over Wi-Fi. Responsible for UI state reflection of hardware status in the app.
iOS Tech Lead at Mobiquity
July 31, 2017 - August 20, 2025
Lead development of a fueling app for MyOrder and a Swift client SDK for the MyOrder services for Rabobank. Managed connecting to the Tokheim platform, test challenges, and custom UI states and animations based on app states.
iOS Tech Lead at Mobiquity
December 31, 2016 - August 20, 2025
Developed iOS app for Rabobank proxy backend communications with a complex security model.
iOS Developer at TNT Express
February 28, 2016 - August 20, 2025
Developed new iOS e-commerce products.
iOS Developer at Sanoma Uitgevers
September 30, 2015 - August 20, 2025
Worked on NU Sports app and the new NU.nl app for iOS.
iOS Developer at Streamio
September 30, 2015 - August 20, 2025
Developed an SDK for Stream analytics.
Native iOS Developer at METH Heerhugowaard
May 1, 2015 - Present
Native development for an enterprise app.
Software Engineer at Vigour.io
September 30, 2015 - August 20, 2025
Developed native iOS wrapper for Vigour web apps.
Software Developer at LookLive
June 30, 2015 - August 20, 2025
Built native iOS mobile app and web application with JavaScript and SVG.
iOS Developer at KLM
March 31, 2014 - August 20, 2025
Developed iOS applications for KLM customer tablet app.
Mobile Software Engineer at TWC Apps
October 31, 2013 - August 20, 2025
Worked on a tablet app for a major content delivery company on iOS and Android with Backbone.js and PhoneGap.
iOS Developer at Elements Interactive
August 31, 2013 - August 20, 2025
Helped with updates for various iPad apps.
PhoneGap Developer at Triple IT
June 30, 2013 - August 20, 2025
Updated existing mobile app for iOS and Android with PhoneGap and various JavaScript libraries.
Freelance iOS Developer at Noodlewerk
May 31, 2013 - August 20, 2025
Helped out with new projects on freelance basis.
Freelance iOS Developer at Easy4 Mobile
April 30, 2013 - August 20, 2025
Native iOS development on a freelance basis.
Freelance iOS Developer at Effectory
April 30, 2013 - August 20, 2025
Developed native iPad app following Scrum methodology.
Senior Software Engineer at Xaton
December 31, 2012 - August 20, 2025
Built web applications for clients such as KPN, Ziggo, European Directories. Led development of multi-platform services app with Sencha Touch, technical lead for iOS apps like Ziggo TV guide and an ANWB widget. Managed prototype iPad app development with Appcelerator framework.
Software Developer at Backbase B.V.
December 31, 2008 - August 20, 2025
Integrated Backbase client software with Java frameworks like Struts and JSF.
Ajax Consultant / Frontend Engineer at Backbase B.V.
January 1, 2006 - August 20, 2025
Created complex GUIs onsite for major clients like ABN/AMRO, KPN and ING. Used technologies like XHTML, CSS, JavaScript, XML, XSLT, XPath, and Java/.NET/PHP.
Software Tester (part-time) at Nippo Software
January 1, 2004 - August 20, 2025
iOS Developer at Tikkie
January 1, 2025 - Present
Contributed to the development of a new product set for release focusing on building and enhancing payment features using Clean Swift architecture, Ruby, Fastlane, and CI/CD tools.
iOS Developer at Digidentity
December 1, 2024 - August 20, 2025
Developed core app and SDKs for internal integration and client-facing use cases, enhanced CI/CD pipelines utilizing Ruby, Fastlane, and GitLab for improved automation and deployment.
iOS Developer at DPG NU.nl
September 1, 2022 - August 20, 2025
Developed the NU.nl iOS app and supported backend-for-frontend with TypeScript and GraphQL, implementing consistent rendering and server-side business logic handling.
iOS Developer (and some Android) at Air Hub
December 1, 2024 - August 20, 2025
Developed iOS and Android apps for drone operations management, including design and functionality contributions to flagship apps and assisting with Android development using Android Views and Kotlin coroutines.
iOS/Android Developer at Topicus
September 1, 2021 - August 20, 2025
Developed the Jaaah app for iOS and Android with custom web app embedding for native credential verification and biometric authentication integration, selectively replacing web views with native implementations to add value and improve performance.
iOS Developer at Coder Society - Yunari
May 1, 2020 - August 20, 2025
Developed an iPhone app for fintech startup Yunari (Deutsche Bank) with MVVM app architecture following SOLID principles, strict work process, high code test coverage, and minimum third-party dependencies.
iOS Developer at PVH
December 1, 2018 - August 20, 2025
Developed iPad app for Tommy Hilfiger store of the future, managing complex e-commerce infrastructure and connections to challenging front-end systems while minimizing third-party dependencies.
iOS Developer at Semmelwise & Company
December 1, 2018 - August 20, 2025
Developed iPhone app using Pulse ON watch peripheral to measure interbeat interval, storing data locally and batch uploading to backend.
iOS Developer at Woost Technologies
September 1, 2017 - August 20, 2025
Developed iOS app for Heineken, connecting front-end to custom hardware via WiFi with dynamic UI reflecting hardware state.
iOS Tech Lead at Mobiquity
July 1, 2017 - August 20, 2025
Developed fueling app and Swift client SDK for MyOrder for Rabobank, connecting to Tokheim platform services managing complex fuel states and custom animation challenges.
iOS Tech Lead at Mobiquity
December 1, 2016 - August 20, 2025
Developed iOS app proxying between multiple backends with a stringent security model for Rabobank.
iOS Developer at TNT Express
October 1, 2015 - Present
Developed new iOS e-commerce products.
iOS Developer at Sanoma Uitgevers
September 1, 2015 - August 20, 2025
Worked on NU sport and the new NU.nl app for iOS.
iOS Developer at Streamio
September 1, 2015 - August 20, 2025
Developed SDK for Stream analytics.
iOS Developer at METH Heerhugowaard
May 1, 2015 - Present
Native development for an enterprise app.
Software Engineer at Xaton
December 1, 2012 - August 20, 2025
Built web applications for clients like KPN, Ziggo, European Directories, developed rich web interfaces with Backbone, RequireJS, Node.js, Handlebars, SCSS, and JQuery. Led technical development for multi-platform services apps and iOS development for Ziggo TV gids.
Software Developer at Backbase B.V.
December 1, 2008 - August 20, 2025
Integrated Backbase client software using Java frameworks such as Struts and JSF.
Ajax Consultant / Front-end Engineer at Backbase B.V.
January 1, 2006 - August 20, 2025
Developed complex on-site GUIs for major clients with XHTML, CSS, JavaScript, XML, XSLT, XPath.
Software Tester (part-time) at Nippo software
January 1, 2004 - August 20, 2025

Education

Artificial Intelligence Specialization: Natural language processing at Universiteit van Amsterdam, Da Vinci College, Leiden Havoen
January 11, 2030 - August 20, 2025
Artificial Intelligence Specialization: Natural Language Processing at Universiteit van Amsterdam
January 11, 2030 - August 20, 2025
HAVO - VWO Diploma at Da Vinci College, Leiden
January 11, 2030 - August 20, 2025
Artificial Intelligence Specialization: Natural Language Processing at Universiteit van Amsterdam
January 11, 2030 - August 20, 2025
VWO Diploma at Da Vinci College, Leiden
January 11, 2030 - August 20, 2025

Qualifications

The Quantum Internet and Quantum Computers: How Will They Change the World?
January 11, 2030 - August 20, 2025
Machine Learning for Data Science and Analytics
January 11, 2030 - August 20, 2025
Introduction to Functional Programming
January 11, 2030 - August 20, 2025
HAVO Diploma
January 11, 2030 - August 20, 2025
The Quantum Internet and Quantum Computers: How Will They Change the World?
January 11, 2030 - August 20, 2025
Machine Learning for Data Science and Analytics
January 11, 2030 - August 20, 2025
Introduction to Functional Programming
January 11, 2030 - August 20, 2025
The Quantum Internet and Quantum Computers: How Will They Change the World?
January 11, 2030 - August 20, 2025
Machine Learning for Data Science and Analytics
January 11, 2030 - August 20, 2025
Introduction to Functional Programming
January 11, 2030 - August 20, 2025

Industry Experience

Financial Services, Software & Internet, Media & Entertainment, Retail, Transportation & Logistics, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

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