About
I have 10 years of experience working as a software engineer. Some products of mine serve millions of users like TokyoCatch, DoNotPay, Coinhako, and Moca.
I love coding and teaching. If you don't find me at work, possibly I'm teaching at Codementor.
I have 5 years working remotely in the US timezone, and flexible to work in any time zones.
Experience
Software Engineer
Alongside.xyz
- Implemented seamless user onboarding on mobile apps utilizing Magic for email and phone number, allowing users to easily initiate trading activities by integrating with MoonPay, Wyre, and Plaid.
- Investigated, diagnosed, and significantly reduced login process time by 13 seconds through the implementation of asynchronous and background checks.
- Developed efficient internal management tools for marketing and finance teams using Next.js, Supabase.
Senior Mobile Engineer
TokyoCatch
- Launched successfully a video streaming game on both iOS and Android platforms, garnering a substantial daily play count of 10,000 and generating monthly revenue amounting to $250,000.
- Analyzed statistics and evaluated the efficiency of GraphQL subscription, leading to a reduced failure rate of 22% by transitioning to socket.io and improving the overall product.
- Achieved impressive crash-free statistics of 99% on iOS and 98.73% on Android by tracking crashes using Sentry and Firebase Crashlytics.
- Collaborated with the marketing team to enhance the deep linking infrastructure, enabling seamless integration of new product features and supporting marketing initiatives.
- View demo
Mobile Lead
Coinhako
- Developed the application from the ground up, prioritizing security measures, bringing about an impressive 4.4 rating and accumulating over 3,800 positive reviews from satisfied users.
- Expanded business operations, seamlessly integrating support for 31 currencies, expanding into 4 countries, and effortlessly localizing the application into 4 languages, resulting in enhanced accessibility and a superior user experience worldwide.
- Streamlined development processes by expertly resolving dependencies between the mobile and backend teams, leading to 40% reduction in development time.
- Analyzed competitors and market trends to identify opportunities for improvement, resulting in the successful introduction of new features and an enhanced user experience, solidifying the product's position as a market leader.
- View demo
iOS Developer
Moca
- Optimized payment flow, reducing transaction time by 17 seconds to user experience and enhancing transaction efficiency.
- Refactored the project meticulously to Swift, prompting a remarkable 38% improvement in application performance, boosting speed, responsiveness, and user satisfaction.
- Monitored user activities and promptly addressed feedback within a 4-hour timeframe, demonstrating a dedicated commitment to customer support and ensuring positive user experiences.
Projects
General Provision
- Geofence to detect doors and unlock by swiping.
- Tap the phone to the reader to unlock.
- Book meeting rooms, order coffee to table, purchase event tickets
Acamp
- Brought more conveniences for booking by adding Apple Pay.
- Spreaded the app to Europe by integrating Google Translate to fully support multi languages for user-created content.
- Used Realm as a local database to offline support and faster load.
- Developed flagging feature and switching environment for better testing and delivering.
Worx360
- Fully supported from A to Z employer and talent recruitment functions with internal chat with socket.io, payment system with Stripe, and time management.
- Built iOS app and server API while mentoring other developers by conference, and code review.
Baucu
- Built in 2 days with Next.js, IndexedDB.
- Saved manual works up to 35 minutes.
- Exported data to Excel for report and printing.
Hot Meal Challenge
- Designed and developed a meticulously crafted iOS and Android application aimed at providing hot meals to individuals in need in London, leading to an impressive 194 donated meals within just 2 days of its launch.
- Implemented seamless payment experiences by integrating Apple Pay and Google Pay through Stripe, enhancing convenience and user satisfaction.
Infinidus
- Mentored and supported 2 iOS developers in building complicated features. Managed and assigned tasks to their abilities.
- Geofence to display message at the correct location.
DoNotPay
- 60% screens are configurable from server.
- Helped 600.000 users solve their problems with a smart chatbot and friendly user experience.
Done!
- Authenticated with Firebase
- Persistence with Realm for offline support.
- Built UI programmatically with SnapKit
Groovetime
- Simply create Solana wallets with social login methods.
- Implement Moonpay on iOS and backend for on-ramp process.
- Show and bid video NFTs in app.
Jet
- On-ramp and off-ramp users with MoonPay
- Managed states with Redux.
- UI built with NativeBase for multi screen adaption
KNConstraints
- Short and sweet syntax
- Easy to understand and maintain
- Used in some commercial projects like Coinhako, TokyoCatch...
Neuro-ID-SDK
- A Human Analytics SDK silently capture user behaviors.
- Developer friendly.
The social app - Video recorder
- Record video like Tiktok with the finger pressed/released to record/pause.
- Add music, voice over to the recorded video.
- Trim the video, add watermark.
- View demo
Ogenii
- Ogenii is a platform to connect teachers and learners.
- Founded and established the team from scratch.
WebGaff
- WebGaff is an Ireland based mobile and online real estate and rental marketplace, focused on providing real-time data and analytics to potential customers about properties of interest.
- View demo
Opiyn
- Opiyn a mobile interactive reviewing social network.
- Displayed heavily format text with multi fonts, sizes and styles.
- Showed reviews on in-app Google Maps with performance enhancement.
Drips
- Drips is a fashion marketplace that brings together the best fashion brands and boutiques into one easy and seamless shopping app.
- Developed UI programmatically with KNConstraints.
Fixir
- Get more requests by using new detail collection system like a step-by-step chat bot.
- Eliminate 100% manual progress by building chat system between drivers and workshops.
- Clear dependencies between frontend and backend by designing unique data for every API.
Streamy
- Streamy is a ticket marketplace and streaming app.
- Live stream the event directly on the user's Facebook personal page or group.
- Live stream in the platform with Wowza Streaming Engine.
kickit
- Geofence to detect friends nearby.
- Heavily customize Google Map Pin to display complex states.
- Keep friends on the same pages with group calendars and group chats.
Food revie
- Geofence to show restaurants around.
- Share review by videos
Ever.ca
- Developed deposit and withdrawal with Plaid and VoPay.
- Added flagging feature for A/B testing.