Resume

Hi, nice to meet you!

Cristian Gutu

9+ years of experience on mobile

A self-taught, empathic, senior software engineer with over 9 years of commercial experience. Worked for fintech, e-learning, news, media and e-commerce companies across US, Europe and Asia. Possesses but not limited by competencies in React Native, React, JavaScript, TypeScript, GraphQL, Node.js, Objective-C, Swift, Java and Kotlin.

Shop Mobile Pro — Mobile Technical Lead, UI/UX Designer

June 2023 - January 2024

Contract - Shop Mobile Pro is a mobile store solution for Shopware stores.

Skills: iOS, Android, React Native, Figma, React.js, CI/CD, App Store Connect, Google Play

Developed a mobile shopping app for iOS and Android using React Native, TypeScript, Zustand, and other core libraries, seamlessly integrating with Shopware stores.
Ensured lightweight application by minimizing external library usage, resulting in 14.3 MB install size on iOS and 8.64 MB on Android; optimized performance for low-end devices like Samsung Galaxy A13.
Implemented CI/CD pipelines on CircleCI, leveraging Fastlane for iOS & Android to streamline deployment processes with parallel job execution strategies.
In addition to mobile development, I handled all the UI/UX work in Figma, built and released a landing page in React.js, and did some backend work for a custom email subscribe feature.
Established App Store & Google Play developer accounts, authored store listings, assets, and successfully launched both apps without issues on the first submission.
You can see the full list of features here and download the apps from here.

The Economist Group — Mobile engineer on iOS, Android and React Native

July 2022 - June 2023

Contract - The Economist is a well-known weekly publication covering global news, current affairs, business, finance, economics, science, technology, and culture.

Skills: iOS, Android, React Native, Swift, Kotlin, TypeScript, Jest, CircleCI

Built a background download feature, enabling offline access to weekly news editions in an audio format. Used native APIs from iOS and Android and exposed a simple interface to the React Native code base.
Created a React Native library for their consent management solution already present in their web app. Integrated the native libraries on iOS and Android and exposed them into React Native.
I resolved many native issues, addressed CI/CD challenges, enhanced build pipelines, orchestrated seamless migrations to newer versions of React Native, and resolved issues with Detox and Unit tests.
You can download The Economist app from here and the Espresso app from here.

DataCamp — React Native, Web, Node.js Developer

January 2022 - July 2022

Contract - DataCamp is an online learning platform that specializes in data science and analytics education.

Skills: React Native, TypeScript, Node.js, MongoDB, Express.js

Revamped and restructured key components of DataCamp’s iOS, Android, Web, and Backend applications.
Completed full migration of codebase from JavaScript to TypeScript within a tight 2-week timeframe.
Enhanced functionality by integrating new features into an established GraphQL API developed in Node.js using Express.js.
You can download the app from here.

AilyLabs — Mobile Squad Lead, React Native Developer, WatchOS Developer

February 2021 - January 2022

Contract - Aily Labs is a Munich-based startup aiming to provide AI-enterprise solutions to maximize productivity and efficiency.

Skills: Project Management, Technical Leadership, WatchOS, SwiftUI, React Native, TypeScript, SaaS

Built a next-gen, fully AI-powered solution to help big businesses understand & wisely use their data.
The end-client was Sanofi, one of the biggest pharmaceutical companies in the world, and we’re helping them to forecast and have the best possible business outcomes.
Led 2 mobile teams in the process of developing the mobile apps on iOS and Android using React Native.
Developed a standalone WatchOS app using SwiftUI with WatchKit and integrated it with the React Native iOS app.

IBM iX — React Native Developer, App Store & Google Play Manager

August 2020 - January 2021

Permanent - IBM iX, short for IBM Interactive Experience, is the digital agency and design consultancy arm of IBM.

Skills: React Native, iOS, Android, TypeScript, Jest, react-native-testing, App Store Connect, Google Play

Developed a car-companion app for a major Asian automotive company.
Orchestrated CI/CD pipelines, prepared store listings for App Store and Google Play.
Led the successful launch of iOS and Android apps in Italy.
Ensured high code quality by extensively unit testing business-logic code, achieving 90% code coverage.
You can download the apps for iOS from here and for Android here.

Cobalt Sign — Junior, Mid, Senior, Lead Mobile Developer

June 2014 - August 2020

Permanent - Cobalt Sign is a software development agency specialized on iOS and Android apps.

Skills: iOS, Android, React Native, JavaScript, TypeScript, Objective-C, Swift, Java, Kotlin, C#, Windows Phone, Technical Leadership, Project Management, Scrum Master, Delivery Manager, App Store Connect, Google Play, TizenOS

Developed Windows Phone apps in C# with .NET tools.
Utilized Objective-C, Java, Kotlin, Swift, and JavaScript/TypeScript for iOS, Android, React Native platforms showcasing adaptability across diverse mobile frameworks.
Managed end-to-end app projects for fintech and medical clients, involving requirement analysis, client engagement, CI/CD integrations, and Agile practices adherence.
Led the creation and evolution of ReadySetHoliday!, an internally developed product with 2 million+ downloads.
Did a lot of in-house technical talks about Java, Swift, Kotlin, JavaScript, React Native, Redux, and general iOS Android development tips.
Developed an analytics app for a prestigious hospital in Zürich using React Native.
Developed an investment and mobile banking app for a Zurich-based bank with advanced trading features tailored for different regions.

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