01 / INVITATIONS
Invitation Maker
Personalized invitations with RSVP, authentication, reusable templates and expressive sticker tools.
UIKitCoreDataPersonalization
↗Selected work · 01—08
Useful things,
beautifully made.
A few of the consumer apps I’ve helped shape at TwinBit — each with its own workflow, creative tools and little details.
02 / STICKERS
Sticker Maker
Animated text sticker creation with customization controls and a smooth export workflow.
SwiftAnimationExport
↗03 / GIF STUDIO
GIF Maker
A canvas-based creative flow for designing animated or static stickers and exporting them as GIFs.
UIKitCanvasGIF export
↗04 / INVOICING
Invoice Maker
Invoice management with sign-in, cloud backup and a dependable multi-screen data flow.
CoreDataFirebaseCloud backup
↗05 / VIDEO
Screen Recorder
Recording settings, video editing and export handling, with media metadata kept in order through the full flow.
UIKitVideo editingMedia export
06 / AI VIDEO
AI Video App
An iOS project focused on AI-assisted video creation, with an approachable flow for shaping an idea into a visual story.
SwiftUIKitAI video
07 / PRESENTATION
Teleprompter App
A focused iOS reading experience for scripts, designed to help presenters stay in rhythm and on message.
SwiftUIKitReading flow
↗08 / DOCUMENTS
PDF Scanner App
A mobile document scanning project centered on turning paper captures into clear, useful PDFs.
SwiftUIKitPDF
↗A bit about me
Good apps are built in the details.
3+YEARS BUILDING FOR iOS
5PRODUCTION APP AREAS
I’m Rafsun, an iOS developer who enjoys turning thoughtful designs into reliable, approachable products. I’ve spent the last few years building and maintaining consumer apps with Swift and UIKit.
My work moves across pixel-conscious interfaces, persistent data, cloud-backed features and creative media tools. I care about how everything fits together: the first tap, the saved draft, the exported file, and the release that reaches the App Store.
01
Interface craft
Bring Figma designs to life with responsive UIKit screens and careful interaction details.
02
Features that hold together
Connect authentication, CoreData, cloud backup and multi-screen app flows.
03
From build to release
Work through debugging, optimization, localization and App Store delivery.
Tools & technologies
The path so far
Experience &
education.
A strong engineering foundation, shaped by real products and the people who use them.
JUL 2023 — PRESENT
TwinBit Ltd · Dhaka
iOS Developer
Joined as an intern; grew into a software developer role.
- Build and maintain production iOS apps with Swift and UIKit.
- Turn Figma designs into polished, responsive app interfaces.
- Develop persistence, authentication, backup and media export features.
- Contribute to IAP, App Store releases, localization and optimization.
- Work across creative tools, invoicing and screen recording products.
- Collaborate on feature delivery and ongoing product improvements.
Education
Daffodil International University
B.Sc. in Computer Science & Engineering · Graduated February 2023
CGPA 3.64 / 4.00
Have something in mind?
Let’s make something
that matters.
Open to a good conversation about iOS, product ideas and thoughtful work.