Malte Schonvogel - Freelance iOS Developer

Q: Where is Malte based?

Malte is based in Berlin, Germany .

Q: What languages does Malte speak?

Malte speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Malte have?

Malte has at least 12 years of experience. During this time, Malte has worked in at least 8 different roles and for 14 different companies . The average length of individual experience is 1 year and 9 months . Note that Malte may not have shared all experience and actually has more experience.

Q: What is Malte's latest experience?

Malte's most recent position is Freelance iOS Developer at United Internet AG .

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

In recent years, Malte has worked for United Internet AG , D4L data4life gGmbH , and Sparkasse S-Markt & Mehrwert GmbH .

Q: Which industries is Malte most experienced in?

Malte is most experienced in industries like Telecommunication , Information Technology , and Banking and Finance . Malte also has some experience in Media and Entertainment , Food and Beverage , and Retail .

Q: Which business areas is Malte most experienced in?

Malte is most experienced in business areas like Product Development , Information Technology , and Marketing . Malte also has some experience in Quality Assurance .

Q: Which industries has Malte worked in recently?

Malte has recently worked in industries like Banking and Finance , Information Technology , and Healthcare .

Q: Which business areas has Malte worked in recently?

Malte has recently worked in business areas like Product Development , Information Technology , and Quality Assurance .

Recommended expert

Berlin, Germany

Experience

Jan 2022 - Oct 2022

10 months

Freelance iOS Developer

United Internet AG

Under the brands Web.de, GMX, 1und1, and Mail.com, offers email and cloud services used daily by millions on iPhones.
As part of a 10-person team, added new features, refactored legacy code, and increased test coverage.
Features: Email and cloud access, compose email, email and cloud sync, news, contact, multiple account management, synchronization, notifications, premium features, ads.
Technologies used: UIKit, SwiftUI, Combine, VIPER, Unit tests, UI tests, Snapshot tests, Fastlane, Cocoapods, MailCore.

Mar 2021 - Dec 2021

10 months

Freelance iOS Developer

D4L data4life gGmbH

Developed the Data4Life app to help users manage health, gain knowledge, and contribute to research.
Migrated UI from UIKit to SwiftUI and architecture from VIPER to Composable Architecture by modularizing into over 50 Swift packages.
Coached staff in Composable Architecture and SwiftUI through pair programming and in-depth sessions.
Features: Keep track of symptoms, participate in studies, store medical documents digitally, knowledge base.
Technologies used: UIKit, SwiftUI, Combine, VIPER, Composable Architecture, Unit tests, Fastlane, SnapKit, Swift Package Manager, Sentry.

Feb 2021 - Dec 2021

11 months

Freelance iOS Developer

Sparkasse S-Markt & Mehrwert GmbH

Supported a white-label customer loyalty app project (HaspaJoker) for Hamburger Sparkasse, focusing on consulting, coaching, and weekly code reviews.

Aug 2020 - Oct 2020

3 months

Freelance iOS Developer

12grapes GmbH

Developed new features and reduced technical debt for Bunch, an AI coach app, by building a backend REST API and outsourcing business logic.
Introduced Functional Reactive Programming in an MVVM setup.
Features: Multi-step onboarding, search, explore content, gamification, user profiles, read or listen to tips, social sharing, calendar integration.
Technologies used: SwiftUI, Combine, MVVM, In-App Purchase Subscriptions, Fastlane, Travis CI, Unit tests, Firebase Firestore, Firebase Cloud Functions, Firebase Authentication, Firebase Cloud Storage, Google App Engine.

Jun 2020 - Aug 2020

3 months

Freelance iOS Developer

sonamedic GmbH

Developed iOS app using SwiftUI and Composable Architecture.
Technologies used: SwiftUI, Combine, AVFoundation, Swift ComposableArchitecture, In-App Purchase Subscriptions, Fastlane, Firebase, Unit tests.

Dec 2019 - May 2020

6 months

Freelance iOS Developer

Sparkasse S-Markt & Mehrwert GmbH

Supported a white-label customer loyalty app (HaspaJoker) offering special offers, discounts, travel/concert booking, and other perks.
Refactored and consolidated codebase for testability, introduced screenshot tests, automated tasks, and implemented new features in an agile scrum team.
Technologies used: Xcode, RxSwift, Fastlane, Alamofire, SwiftLint, SnapKit, MVVM, REST API, AppCenter, SwiftGen, Coordinator, Snapshot tests, Unit tests, Git, Scrum.

Nov 2019 - Feb 2021

1 year 4 months

Freelance iOS Developer

Splay, Inc.

Built an app enabling selected users to post photos and text to a public feed with two-day auto-deletion and live video streaming with real-time emoji reactions.
Enabled posting products for sale with Apple Pay and real-time visibility of user actions.
Features: Live video streaming, live updates through WebSocket, Sign in with Apple, image posting, text posting, photo cropping, commenting, mentioning users in comments.
Technologies used: UIKit, WebSocket, WebRTC, Mediasoup, RxSwift, Fastlane, SnapKit, Push Notifications, Apple Pay, Stripe, MVVM, Unit tests.

Jul 2019 - Nov 2019

5 months

Freelance iOS Swift Developer

Spielworks GmbH

Architected and implemented the beta version of Wombat, the first EOS wallet app for everyday use, then hired a developer to continue the project.
Simplified EOS account creation, encryption, cloud storage of private keys, and DApp browser integration for seamless transaction signing.
Features: Login, EOS account creation, send/receive EOS tokens, sign transactions, SDK for third-party apps, manage EOS keys, unlock private key, Prime subscription, EOS resources overview.
Technologies used: In-App Purchases, EOS Blockchain, AES Cryptography, Sign in with Apple, Facebook, Twitter and Email, Firebase, Crashlytics, RxSwift, MVVM, Google Drive, Dropbox, Unit tests.

Jan 2019 - Jun 2019

6 months

Freelance App and Backend Developer

Fitness First Germany GmbH (via anywhereinside UG)

Built the ‘My Fitness Video’ portal with high scalability and security using AWS components.
Three main parts:
Backend with payment and subscription processes.
Mobile-optimized web app (vue.js) for users.
Content and customer management system for administrators.
Features: User login, registration with multi-step onboarding, password and email management, video streaming, payment integration (Wirecard), subscription management, voucher codes, video recommendations, training programs, campaigns, analytics, CMS for static pages.
Technologies used:
Web app: Nuxt.js, Bootstrap, Node.js, GraphQL, Webpack, Serverless, AWS Lambda, AWS Cognito, AWS S3, AWS CloudFront, AWS CloudFormation.
Admin CMS: Vue.js, Bootstrap, GraphQL, AWS S3, AWS CloudFormation, AWS CloudFront, AWS Cognito, Webpack.
Backend: Node.js, AWS Lambda, GraphQL API, AWS Cognito, AWS AppSync, AWS Kinesis, AWS RDS, AWS SES.

Jan 2018 - Jan 2019

1 year 1 month

Head of Frontend Development

Vantik GmbH

Joined full-time to build the entire frontend stack and team for a BaFin-compliant investment-based retirement savings product.
Stack components:
Customer web app with multi-step registration, transactions, account settings, multi-factor authentication.
Admin web app for user and payment management, voucher codes.
Visitor website using a headless CMS and AWS hosting.
iOS app for customer account management and transactions.
Technologies used:
Customer web app: Vue.js, Bootstrap, Node.js, Webpack, AWS Cognito, AWS CloudFormation, AWS S3, AWS Lambda.
Admin web app: Vue.js, Bootstrap, AWS S3, AWS CloudFormation, AWS CloudFront, AWS Cognito, Webpack.
Visitor website: Node.js, Express.js, Prismic.io, Pug.
App (iOS): Swift, UIKit, Alamofire, RxSwift, MVVM, Reactive programming.

May 2017 - Jan 2018

9 months

Freelance iOS Swift Developer

Boston Consulting Group (via functionalaesthetics GmbH)

Developed a universal iOS app for Swiss insurance client Smile.Direct to help families plan everyday life with an optimized calendar and private messaging.
Features: Calendar component, create and edit events, comments, animated onboarding, task lists, calendar import, sharing, push notifications, user registration and login, password management, family setup, private messages, theme customization.
Technologies used: Swift, UIKit, Fastlane, RxSwift, MVVM, Reactive programming, Alamofire, AlamofireImage, SnapKit, SwiftLint, Firebase, BuddyBuild, Core Text, Core Telephony, Quartz Core, AVFoundation, Core Media, Core Video.

Dec 2015 - May 2017

1 year 6 months

iOS Swift Developer

Wine in Black GmbH

Built the universal iOS app for a curated wine e-commerce company, storing and syncing products locally for instant interactions.
Developed a new REST API to replace the existing shop system.
Features: Push notifications, campaigns, product detail pages, cart, checkout, order history, profile, filters and search, custom transitions, store country switching, user registration and login.
Technologies used: App: Swift, UIKit, iAd, Core Image, Fabric, Fastlane, OneSignal, Crashlytics, Analytics; Backend: PHP, Spryker Commerce OS, MySQL, Integration tests.

Jan 2015 - Dec 2015

1 year

iOS Swift Developer

universeiscool UG

Built FOYER, a social image sharing app that combines text and photos into stories with automated layout and integrated image editor.
Implemented social features: share, like, comment, discover section, and web app for cross-platform use.
Features: Login and registration, animated onboarding, story page, story editor, image editor and picker, social feed, like, share, comment, discover section, profile, push notifications.
Technologies used: App: Swift, Objective-C, UIKit, Core Image, Core Graphics, Core Animation, Alamofire, MVC, Unit tests; Web: Angular.js, image proxy; Backend: Node.js, REST, Koa.js, AWS S3, AWS Lambda, SNS, SES, Neo4j, Integration tests.

May 2014 - Sep 2014

5 months

iOS Objective-C Developer

Deutschlandradio

Developed the media library app for Deutschlandradio Wissen during studies.
Features: Login and registration, category overview, article detail page, audio streaming, favorite articles, push notifications.
Technologies used: Objective-C, UIKit, MVC, Core Animation, Core Image, AVFoundation, AFNetworking.

Feb 2011 - Apr 2012

1 year 3 months

UX/UI Designer

sipgate GmbH

Aug 2008 - Feb 2011

2 years 7 months

Dual Apprentice (Media Design)

sipgate GmbH

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Telecommunication, Banking and Finance, Media and Entertainment, Retail, and Food and Beverage.

Information Technology

Telecommunication

Banking and Finance

Media and Entertainment

Retail

Food and Beverage

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Product Development, Information Technology, Marketing, and Quality Assurance.

Product Development

Information Technology

Marketing

Quality Assurance

Languages

German

Native

English

Advanced

Education

Apr 2012 - Mar 2015

University of Applied Sciences (HTW) Berlin

Studies of applied computer science, area of concentration: mobile applications · Applied computer science · Berlin, Germany

Aug 2008 - Feb 2011

Albrecht-Dürer-Schule

Dual apprenticeship, Mediadesign – Technical College · Mediadesign · Düsseldorf, Germany

Sep 1999 - Jun 2008

Marie-Curie Gymnasium

A levels / Abitur · Düsseldorf, Germany

Statistics

Experience

Total positions 16

Experience in Information Technology 3.5 y

Avg length 10 m

Longest experience 2 y 6 m

Expertise

Recent roles Freelance iOS Developer, Freelance iOS Swift Developer, Freelance App and Backend Developer

Main industries Information Technology, Telecommunication, Banking and Finance

Main business areas Product Development, Information Technology, Marketing

Qualifications

Profile

Created

September 2022

Last Update

July 2025

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Frequently asked questions

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

Where is Malte based?

Malte is based in Berlin, Germany.

What languages does Malte speak?

Malte speaks the following languages: German (Native), English (Advanced).

How many years of experience does Malte have?

Malte has at least 12 years of experience. During this time, Malte has worked in at least 8 different roles and for 14 different companies. The average length of individual experience is 1 year and 9 months. Note that Malte may not have shared all experience and actually has more experience.

What roles would Malte be best suited for?

Based on recent experience, Malte would be well-suited for roles such as: Freelance iOS Developer, Freelance iOS Swift Developer, Freelance App and Backend Developer.

What is Malte's latest experience?

Malte's most recent position is Freelance iOS Developer at United Internet AG.

What companies has Malte worked for in recent years?

In recent years, Malte has worked for United Internet AG, D4L data4life gGmbH, and Sparkasse S-Markt & Mehrwert GmbH.

Which industries is Malte most experienced in?

Malte is most experienced in industries like Telecommunication, Information Technology, and Banking and Finance. Malte also has some experience in Media and Entertainment, Food and Beverage, and Retail.

Which business areas is Malte most experienced in?

Malte is most experienced in business areas like Product Development, Information Technology, and Marketing. Malte also has some experience in Quality Assurance.

Which industries has Malte worked in recently?

Malte has recently worked in industries like Banking and Finance, Information Technology, and Healthcare.

Which business areas has Malte worked in recently?

Malte has recently worked in business areas like Product Development, Information Technology, and Quality Assurance.

What is Malte's education?

Malte attended University of Applied Sciences (HTW) Berlin for Applied computer science.

What is the availability of Malte?

The availability of Malte needs to be confirmed.

What is the rate of Malte?

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