Martin Menzel - SuperPetApp

Q: Where is Martin based?

Martin is based in Berlin, Germany .

Q: What languages does Martin speak?

Martin speaks the following languages: German (Native), English (Advanced), French (Elementary), Japanese (Elementary) .

Q: How many years of experience does Martin have?

Martin has at least 16 years of experience. During this time, Martin has worked in at least 2 different roles and for 19 different companies . The average length of individual experience is 9 months . Note that Martin may not have shared all experience and actually has more experience.

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

In recent years, Martin has worked for Florio C3G , Boehringer Ingelheim , Elektrofreund , Netze BW , and SAP .

Q: Which industries is Martin most experienced in?

Martin is most experienced in industries like Information Technology (IT) , Automotive , and Energy . Martin also has some experience in Healthcare , Fashion and Apparel , and Retail .

Q: Which business areas is Martin most experienced in?

Martin is most experienced in business areas like Information Technology (IT) , Product Development , and Customer Service .

Q: Which industries has Martin worked in recently?

Martin has recently worked in industries like Automotive , Energy , and Information Technology (IT) .

Q: Which business areas has Martin worked in recently?

Martin has recently worked in business areas like Information Technology (IT) , Product Development , and Customer Service .

Q: What is Martin's education?

Martin holds a Master in Communication Science from FU Berlin and a Master in Japanese Studies from HU Berlin .

Recommended expert

Berlin, Germany

Experience

Jan 2025 - Present

1 year 1 month

Florio C3G

App that helps patients schedule their medication, track their symptoms, and biomarkers
The app is being certified as a medical device
Technologies: React Native, Expo, Redux Toolkit

Jan 2025 - Jun 2025

6 months

SuperPetApp

Boehringer Ingelheim

App that helps users manage their pets' health
Technologies: React Native, Expo, NativeWind, SQLite, tan stack query

Jan 2024 - Present

2 years 1 month

Elektrofreund

App that teaches basic knowledge about electric vehicles
Built for iOS and Android
Includes over 50 articles about electric vehicle basics, a charging map, quizzes, and a logbook
Technologies: React Native, event sourcing, tan stack query

Jan 2023 - Dec 2024

2 years

Netze BW

Enhanced and maintained a customer portal for electricity-related topics
Released and upgraded multi-tenant apps
Migrated the customer portal to a new tech stack while reducing costs
Technologies: React, TypeScript, Vanilla Extract, SCSS, SWR, Redux, Playwright

Jan 2022 - Sep 2022

9 months

SAP

Built a content discovery tool for SAP employees to find product information
Technologies: React, TypeScript, React Query

Jan 2022 - Mar 2022

3 months

Breaking Wave (Deutsche Bank)

Developed a tool for merchants to view transactions, statistics, and make transactions
Technologies: React, TypeScript, React Query

Jan 2021 - Mar 2021

3 months

About You

Worked on the product page of the About You shop relaunch
Technologies: React, TypeScript, gRPC

Jan 2021 - Mar 2021

3 months

HERE Technologies

Worked on the new Navigation on Demand platform
Connected GRPC services in TypeScript with parts of the application written in Kotlin and C++

Jan 2021 - Feb 2021

2 months

Integration support of chatbot system SDK

Ada Health

Provided client integration of the chat bot SDK
Technologies: TypeScript, Node.js, JavaScript

Jan 2020 - Dec 2024

5 years

Stromi

React Native app that calculates charging prices depending on tariffs, charging station, and car properties
Designed and wrote the entire app, including the mobile app and the backend
Created a charge simulator and price calculator library
Backend provides charge stations and charge tariffs
Technologies: React Native, TypeScript, Styled Components, PostgreSQL (TypeOrm & Prisma), PostGIS, NodeJS, Heroku

Jan 2020 - Apr 2020

4 months

Veta Health

Took over an MVP provided by an agency and fixed architectural mistakes
Modularized state machine components
Technologies: TypeScript, Webpack, Jest, React, XState, PouchDB, Vercel, Dato Headless CMS, GraphQL

Jan 2019 - Dec 2020

2 years

Ada Health

Designed and developed an SDK for creating, replaying, and composing dialogs for Ada’s chatbot system
Interconnected local and remote chat flows
Technologies: React Native, Node.js, TypeScript, Lerna, Webpack, Jest, XState, Redis
Architected and implemented a software solution to customize chatbot dialogues, enabling Ada to sell custom diagnosis chats to large US-based health insurers

Jan 2018 - Sep 2018

9 months

eBay / move

Set up the first version of a car dealer tool and onboarded new colleagues
Wrote a user flow control mechanism similar to a state machine
Technologies: ES6, Redux, Redux Saga, TestCafe, Jest, GitHub, Styled Components

Jan 2017 - Mar 2018

1 year 3 months

Ada Health

Fixed native platform issues to achieve feature parity of the Ada App on iOS and Android
Replaced unmaintained core libraries seamlessly
Reverse engineered and documented app features
Guided and onboarded junior developers
Technologies: ES6, React Native, Redux, Redux Saga, Atomic Design Pattern, Jest, Generators, GitHub, Styled Components

Jan 2017 - Dec 2017

1 year

Kazuo

App for learning and translating large numbers in languages with different digit grouping
Released before Google Translate was able to translate numbers correctly
Technologies: React Native, styled components

Jan 2017 - Jun 2017

6 months

SolarisBank

Set up an in-house tool for bank account access
Technologies: TypeScript, ES6, React, Redux, Redux Saga, Atomic Design Pattern, Jest, Enzyme, Ramda JS, Redux Forms, Generators, GitHub, PostCSS

Jan 2016 - Mar 2016

3 months

Quazer

Set up an asset management tool for a streaming platform
Technologies: React, Redux, Foundation, Swagger Tools, Node.js, GitLab, Sass

Jan 2016 - Mar 2016

3 months

Volkswagen

Relaunched the Volkswagen website
Technologies: TypeScript, ES6, React, Redux, Atomic Design Pattern, Async, Gerrit, Less

Jan 2015 - Jun 2016

1 year 6 months

Zalon by Zalando

Built an in-house stylist tool for a few hundred stylists
Technologies: React, Redux, AltJS, GitHub, ES6, Sass

Jan 2014 - Mar 2014

3 months

Edenspiekermann

Developed a streaming website with a custom streaming player for the Lollapalooza festival
Technologies: AngularJS, JavaScript, CSS

Jan 2009 - Dec 2015

7 years

Freelance Wordpress Development

Launched over 90 WordPress-based websites with completely custom templates
Technologies: PHP, jQuery, CSS
Highlights include a blog for Mercedes Benz and the Nokia blog for launching Nokia Windows Phones

Summary

Experienced Senior Frontend Developer with over 14 years of experience building and maintaining scalable web and mobile applications. Skilled in technologies like React, React Native, Node.js, and TypeScript, familiar with BFF systems, PostgreSQL, and various ORMs.

Successfully took over a React Native app used by over a million people, reverse engineered its chatbot, and developed an SDK for composing dialogs to improve operational efficiency for an innovative health diagnosis platform.

Passionate about writing my own apps for the App Store, such as Kazuo, Stromi, and Elektro Freund.

Proven e-commerce experience at Zalando and About You.

Passionate about clean code. Strong track record mentoring junior developers and helping teams onboard to new domains.

Skills

Ui From Mocks - 14 Years
Javascript - 12 Years
Css - 14 Years
Api - 14 Years
React - 9 Years
Redux - 9 Years
Typescript - 8 Years
Postgres - 7 Years
React Native - 7 Years
Git - 10 Years
Github - 10 Years
E2e Tests - 9 Years
Unit Tests - 8 Years
Node.js - 8 Years
Css Libraries - 7 Years
Collaboration With Designers - 14 Years
Code Reviews - 10 Years
Agile - 10 Years
Kotlin
Jetpack Compose
Android
Swift
Swiftui

Languages

German

Native

English

Advanced

French

Elementary

Japanese

Elementary

Education

Oct 2001 - Jun 2008

FU Berlin

Master's degree · Communication Science · Berlin, Germany

Oct 2000 - Jun 2007

HU Berlin

Master's degree · Japanese Studies · Berlin, Germany

Oct 1999 - Jun 2000

TU Berlin

Technical Computer Science · Berlin, Germany

Profile

Created

December 2025

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Frequently asked questions

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

Where is Martin based?

Martin is based in Berlin, Germany.

What languages does Martin speak?

Martin speaks the following languages: German (Native), English (Advanced), French (Elementary), Japanese (Elementary).

How many years of experience does Martin have?

Martin has at least 16 years of experience. During this time, Martin has worked in at least 2 different roles and for 19 different companies. The average length of individual experience is 9 months. Note that Martin may not have shared all experience and actually has more experience.

What roles would Martin be best suited for?

Based on recent experience, Martin would be well-suited for roles such as: SuperPetApp, Integration support of chatbot system SDK.

What companies has Martin worked for in recent years?

In recent years, Martin has worked for Florio C3G, Boehringer Ingelheim, Elektrofreund, Netze BW, and SAP.

Which industries is Martin most experienced in?

Martin is most experienced in industries like Information Technology (IT), Automotive, and Energy. Martin also has some experience in Healthcare, Fashion and Apparel, and Retail.

Which business areas is Martin most experienced in?

Martin is most experienced in business areas like Information Technology (IT), Product Development, and Customer Service.

Which industries has Martin worked in recently?

Martin has recently worked in industries like Automotive, Energy, and Information Technology (IT).

Which business areas has Martin worked in recently?

Martin has recently worked in business areas like Information Technology (IT), Product Development, and Customer Service.

What is Martin's education?

Martin holds a Master in Communication Science from FU Berlin and a Master in Japanese Studies from HU Berlin.

What is the availability of Martin?

Martin is immediately available for suitable projects.

What is the rate of Martin?

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