Gradoid DOO

Founded an app studio with my wife Biljana.

We design, build & grow mobile apps for ourselves and the clients.

Our own apps:

1. Guess the Drawing - 10k users drawing game monetized with ads
2. Mind - bite-sized spirituality lessons app with 217K+ users and $108K+ revenue
3. Delicious - social sharing recipes app
4. Košnica - services marketplace app for web and mobile

Founder

Toptal

Built mobile apps for 10 clients via Toptal platform:

1. Android (Kotlin) Engineer for adult card game (2019)
2. Flutter Engineer for healthcare app (2019)
3. Flutter Tech Lead for FinTech app (2020)
4. Flutter Tech Lead for security app (2020)
5. Flutter Tech Lead for live streaming app (2020 - 2021)
6. Flutter Tech Lead for store management app (2022)
7. Flutter Tech Lead for FinTech app (2023)
8. Flutter Tech Lead & Team Lead for Crypto Wallet app (2023)
9. Flutter Tech Lead for Color app (2023)
10. Flutter Tech Lead for Storage Management System (2023)

Flutter & Firebase Engineer

Homemade Method

Head of Engineering

Verb Technology Company, Inc .

Mobile Tech Lead (via Toptal)

North Shore Research

Mobile Engineer (via Toptal)

Bmapp

Full Stack Engineer

Gradoid

Ellipsis Health

Full Stack Engineer (via Toptal)

Evil Studios Limited

Android Engineer (via Toptal)

Schneider Electric DMS NS

Software Developer

I help app founders make more money.

My journey:

📱 2007 - Built my first app for Nokia phones in high-school.
🚀 2011 - Launched my first startup: local places & events app.
💰 2018 - Raised VC money and participated in 2 startup accelerators.
🛠️ 2018 - Joined Toptal as Mobile Apps Engineer and built apps for 10 clients.
📈 2019 - Built an app portfolio that brought $108,596 in revenue with 214K users.
👥 2022 - Founded an app agency (3 devs, 1 designer, 1 QA). Amazing, but stressful.
👉 2024 - Shut down the agency in April, now helping app founders make more money.

Milos Jokic

TimeFinder

- Led the development and maintenance of a Flutter app for time-blocking, supporting Android, iOS, and macOS with a single codebase
- Conducted the review of pull requests, ensuring the code was high-quality, maintainable, and consistent throughout the project

Lead Flutter Developer

- Collaborated with the founder throughout the project lifecycle, from planning and design to coding, testing, and deployment, ensuring a good quality product at every stage
- Integrated calendar synchronization for Premium users, enabling the syncing of events from Apple Calendar, Google Calendar, and Reminders
- Refactored large files and classes (over 2000 lines of code) for key features, resulting in fewer bugs, improved performance, more testable code, and better user satisfaction
- Handled localization for the app, ensuring a smooth user experience for a global audience across 158 countries
- Worked on timezone synchronization for events, ensuring accurate time adjustments when users travel or during shifts from summer to winter time, maintaining consistency, and preventing scheduling errors
- Implemented Cubit for state management with a feature-first architecture, streamlining code
maintenance and improving the app scalability

Flutter Developer

Siemens Energy

- Developed a Flutter web application in the Web3 and blockchain industry
- Refactored 90% of the legacy codebase and implemented a new architecture to boost scalability and performance
- While refactoring, I used Riverpod for state management with a feature-first architecture to improve code organization and performance
- Implemented unit, widget, and integration tests, increasing code coverage from 0% to nearly 80%, ensuring a more reliable product
- Actively collaborated with a large team of 16 people, including Product Owners, Scrum Master, Frontend and Backend Developers, Blockchain Engineers, and Designers to ensure the product was high-quality and delivered successfully and on time
- Successfully drove the project to completion, ensuring it was delivered on time as planned
- Conducted code reviews to ensure it followed best practices, maintaining a collaborative and agile development process
- Used code generation packages, including freezed, retrofit, and json_serializable, for various features to improve code maintainability
- Integrated REST API connection with the backend using Retrofit and interceptors for improved request and error handling

Remobi

- Apart from Flutter and programming, I dedicate myself to crafting engaging content on subjects such as motivation, remote work, developers' life, startups, IT, Flutter, and more.

Flutter Developer & Writer

Motion

- Developed iOS and Android mobile applications using Flutter in a fast-paced startup
environment
- Integrated various SDKs and APIs (Google Maps, Google Search API, Geolocation, MapBox) to
track live user location.
- Collaborated closely with two co-owners (technical and non-technical) to align on product
vision and deliver features efficiently
- Delivered a fully functional product ahead of schedule, completing development two months
before the planned timeline
- Managed beta testing and successfully deployed the app to both the Google Play Store and
the App Store
- Worked on bug fixing, performance optimization, and quality assurance after launch to ensure
a smooth user experience

Maasu GmbH

- Collaborated closely with clients, designers, and backend developers in an Agile environment
to deliver features for high-profile clients
- Developed and maintained Flutter applications for Android, iOS, and Web using a single
codebase, ensuring cross-platform consistency
- Optimized application performance, achieving up to a 90% improvement in speed and
responsiveness
- Connected the app with backend services hosted on AWS Amplify and AWS Cognito for the user
authentication and data management

Tech 387

- Developed a variety of Android and iOS applications for clients across the globe (Germany,
Austria, UAE), including industries such as e-commerce, delivery, and social media
- Mentored and led a team of 10 Flutter developers, 5 interns, and 5 junior developers,
overseeing skill development and task delegation
- Monitored code quality and progress, providing guidance to interns and assisting junior
developers with complex tasks and advanced features
- Designed and implemented backend architectures for mobile and web applications using
Firebase Firestore, Firebase Cloud Functions, Firebase Storage, Google Analytics, and
Crashlytics
- Applied the MVVM architectural pattern with Provider for state management, ensuring clean
and maintainable code
- Integrated a wide range of SDKs, including Google, Apple, Facebook, and LinkedIn Sign-ins,
and PayPal, Stripe, and Checkout.com payments
- Utilized Bitrise and Codemagic.io for CI/CD, ensuring efficient build and release processes
- Collaborated closely with design teams using Figma and Adobe XD to align engineering and
design workflows and deliver high-quality user experiences

Flutter Developer & Mentor

Self Employed

- Developed and released an educational app for Android and iOS that has over 25000 downloads, over 10000 active users, and an impressive 5.0 stars rating!

You can check out the app here:
 - Google Play Store: https://play.google.com/store/apps/details?id=com.sufara.sufara_ba_demo
 - App Store: https://apps.apple.com/au/app/sufara-ba/id1562575259

Hey, thank you for showing interest in my profile!

Who am I?

I am an experienced mobile and web application developer with a strong track record of helping companies succeed through the creation of powerful and high-performance applications. Additionally, I am an avid writer, covering diverse topics such as motivation, remote work, developers' life, Flutter, IT, startups, and more.

How can I help you?

I offer a range of valuable services, including:

 - Collaborating with technical and non-technical clients to understand their needs, create optimal solutions, and present final products.
 - Mentoring and training team members on cutting-edge technologies, design techniques, and coding standards in mobile development.
 - Thriving in both small and large team environments, working seamlessly with designers, developers, QA engineers, product owners, and project managers.
 - Developing highly efficient and user-centric mobile and web apps independently
 - Successfully deploying and releasing applications to official stores, ensuring a smooth user experience
 - Collaborating effectively with designers who work with tools such as Figma and Adobe XD
 - Leveraging diverse SDK/APIs in Flutter, including Facebook, Firebase, MapBox, Google Maps and Search, PayPal, Stripe, and Checkout.com payments
 - Configuring CI/CD tools for efficient development and deployment process

I am always eager to embrace new challenges, expand my skill set, and contribute to the success of businesses. Let's connect and explore opportunities together!

taplio

The Battle

Milos Jokic

Amer Bešo

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