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🏅TOP-RATED ⭐ 5-star service ✅ Upwork verified 👍🏼100% client satisfaction 🚨 200k Subs on Flutter YT Channel
6+ years of Mobile App development experience and more than 25 high-quality apps delivered for iOS, Android, and the Web.
200k Subs on Flutter Youtube Channel (HeyFlutter.com)
➥ Services Offered:
• Full Stack development for Android, and iOS using Flutter & FlutterFlow
• Rapid Prototyping and MVP Development
• User Interface & User Experience Design (UI/UX) using Figma
• App Deployment and Publishing Assistance
• App performance optimization
I began my career developing native apps such as Todo lists, note-taking tools, and chat applications like WhatsApp. After discovering Flutter, I was intrigued by its ability to streamline Android and iOS development into a single codebase. Over time, my interest in Flutter grew, leading me to explore FlutterFlow for developing apps with low-code solutions. For the past 4 years, I have dedicated myself to mastering Flutter and FlutterFlow, consistently delivering exceptional applications.
I'd love to learn about your project and see if we can be a great fit. Let’s transform your app ideas into reality together!
I am a Senior Software Engineer with 5 years of experience in Flutter development, specializing in cross-platform mobile applications. I have expertise in UI/UX design, state management, and API integration.
I have been in this industry for 10+ years with consistent knowledge in developing mobile apps and website with expertise at:
- React Native,
- Flutter,
- ReactJS, Javascript, Typescript, HTML, CSS, JQuery
- NodeJS, ExpressJs
- PHP/CodeIgniter, Laravel
- PostgreSQL, MYSQL, MongoDB
- iOS, Swift, SwiftUI
- Android, Java, Kotlin
- Firebase
I also have a deep understanding of cloud computing platforms such as AWS, Azure, and Google Cloud.
Contact me if you:
have a technical issue to solve.
want mobile/web application developed from scratch.
want me to work on an on-going project.
want me to develop a difficult module
want me to implement new functionality in an on-going project
want me to create or change UI/UX
want me to develop a database.
My availability: Usually 8 Hours per day and 6 days in a week, but can work for more hours depending on project and client demand.
Feel free to ask me anything you may want to know.
**FIRST 15 MINS FREE SESSION**
🏅TOP-RATED ⭐ 5-star service ✅ Upwork verified 👍🏼100% client satisfaction 🚨 200k Subs on Flutter YT Channel (HeyFlutter.com)
7+ years of Mobile App development experience and more than 25 high-quality apps delivered for iOS, Android, and the Web.
Testimonials:
⭐️⭐️⭐️⭐️⭐️ "Johannes' dedication and development skills are top-notch."
⭐️⭐️⭐️⭐️⭐️ "Johannes consistently exceeds our expectations with outstanding results."
⭐️⭐️⭐️⭐️⭐️ "Johannes' clear communication and punctuality make the process seamless."
With over 7 years of experience as a Full Stack Mobile App and Web Developer, I have successfully developed numerous outstanding mobile applications and websites.
🏆 Services Offered:
✓ Mobile Applications (Android, iOS, Flutter, React Native, FlutterFlow)
✓ Generative AI Capabilities (ChatGPT, Gemini, Vertex AI, GenKit and Vector DBs)
✓ Responsive Websites (Flutter, React, WordPress, HTML5, CSS, JavaScript)
✓ Full-Stack Development (Firebase, AWS, NodeJS, etc.)
✓ Database Development (AWS, Firebase, MongoDB, MySQL, Oracle, etc.)
✓ UI/UX Design for Apps & Websites (Figma, Photoshop)
🏆 Mobile App Development:
✓ E-Commerce Apps
✓ Social Media Apps
✓ Fintech Apps
✓ Healthcare Apps
✓ Tourism Apps
✓ Education Apps
✓ Fitness Apps
✓ Booking Apps
✓ Payment Apps(In-App Purchases, Stripe, PayPal, etc.)
✓ Video Streaming Apps
✓ Food Delivery Apps
✓ Dating Apps
🏆 Website Development:
✓ E-Commerce Website
✓ Corporate Websites
✓ Landing Pages
✓ Social Media Websites
✓ Promotional Websites
✓ Catalog Websites
✓ CMS Website
Let’s discuss your project! ⚡️
My exceptional communication sets me apart from other developers.
Hi! I'm Pazia, I'm a software engineer specializing in mobile applications & I'd love to share my passion & knowledge of computer science with you.
I received my bachelors degree in computer science from Brown University, where I graduated magna cum laude in 2020. After graduating, I spent 4 years working as a software engineer at Google, working on a variety of projects including Google Docs, Sheets, & Slides on iOS.
During my time at Google, I also conducted SWE interviews, mentored software engineering apprentices on my team, helped CS students prepare for coding interviews and volunteered at student events and workshops.
I am passionate about sharing my knowledge & experience & helping other folks in their own coding journeys. In particular, it's really important to me to help folks who hold marginalized identities, i.e. women, non-binary folks, LGTBQ+ & BIPOC folks, feel better entering the world of tech.
As a multiracial female/non-binary SWE, I know how intimidating the tech industry can be especially when you don't see people around that look like you and I want to help you feel more confident in this space :)
Looking forward to meeting & working with you!
By actively assisting others in developing their programming abilities and offering insightful advice and support, it enables me to share my love of coding while also expanding my own knowledge through the fresh viewpoints and difficulties that mentees present.
As an innovative full-stack engineer, I specialize in leveraging cutting-edge technologies to build impactful software solutions that drive social change and business transformation. My expertise spans fintech, streaming services, and AI-enabled systems. integrating cutting-edge AI, including large language models like GPT-4, Claude, and open-source alternatives, with robust full-stack development and DevOps practices
Hit me up, lets see how I can help
I'm CTO, System Architect, Full-Stack developer with 10+ years of experience.
I've experience of building billing systems for Internet Service Providers, Mobile Content Providers, Site Builder Systems (like a SitePlus.com, Wix.com), Learning Management System (smls.com.ua, maktapp.az), small tools and etc. stuff.
I can work alone or manage a team and work together to keep them enough mentored and motivated.
Experience list (developing during work):
1. GoLang - expert with 5+ years experience
2. NodeJS - expert with 10+ years experience (since v0.4)
3. Ruby - expert with 3+ years experience
4. Elixir - expert with 3+ years experience
5. PHP - expert with 15+ years experience
6. Rust, C++, C#, Java, Python- debugger and had deal with code written on these languages, writing own small projects on Rust as hobby before using it in customer's work.
7. Databases:
MySQL (also Galera Cluster) - expert (installing, tuning, replication, complex queries, building optimal db solutions),
PostgreSQL - expert (installing, tuning, replication, complex queries, building optimal db solutions),
MongoDB - expert (currently preferred as primary db in most of projects, have rich experience on any aspect of this db),
CouchBase - expert (using as secondary after MongoDB to cache, store data that is requested with high concurrency),
CouchDB - expert (same as CouchBase, but I prefer CouchBase for it's active data in memory principles),
RethinkDB - expert (I use it to build back communication between api micro-services and web-socket micro-services to route response to exact connection in context of multi-instance containers)
8. Frontend frameworks:
AngularJS, ReactJS - have experience of supporting code written using these frameworks and experience can be developed if there is big need to work with them
9. Building micro-services, containerizing, delivering to cloud infra.
10. Server OSs: ArchLinux, Debian, Alpine
11. Continuous Integration: CI Scripting in GitLab, Jenkins, CloudBuild
12. Team/Task management and boards in Jira
13. Cloud service providers: GCP, AWS
Have problem - I'll find solution, only question is time.
I would love the opportunity to work with you on your project!
A dedicated and visionary leader with extensive experience in cross-platform mobile application development, I excel at both independent and collaborative projects. My primary focus is on Flutter—the powerful, open-source UI toolkit by Google—where I create scalable, visually engaging, and performance-driven apps that run seamlessly on multiple platforms from a single codebase.
My technical background spans a range of technologies, with Flutter and Dart at the core of my current workflow. I am highly proficient in integrating Firebase’s suite of cloud-based tools (such as Firestore, Authentication, and Cloud Functions) into Flutter apps, ensuring real-time data sync, secure user management, and robust backend operations. In addition, my prior experience in native Android and iOS development, as well as knowledge of server-side frameworks and database systems, allows me to craft end-to-end solutions that are both maintainable and easily scalable.
I am passionate about UI/UX principles, ensuring that every Flutter application I create is intuitive, accessible, and visually appealing. Beyond the technical details, my interpersonal skills and leadership qualities enable me to lead teams effectively, collaborate with stakeholders, and guide projects from conceptualization to successful launch. In my spare time, I enjoy experimenting with new Flutter features, exploring state management solutions like Provider or Bloc, and building user-friendly apps that streamline day-to-day tasks—ultimately striving to improve the quality of life for users everywhere.
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Frequently asked questions
How long do Dart projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Dart project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Dart request on Codementor, check out our article.
How much does it cost to hire a freelance Dart developer?
We don’t charge anything when you post a freelance hiring request for Dart developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
What makes Codementor Dart developers different?
We do a comprehensive technical and communications screen of all Dart developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Dart developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
As a platform, we strive to ensure you’re always happy with your Dart project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.
For more answers to frequently asked questions, see here.