iOS banking & fintech
Vital Sowath
iOS Developer · Banking & Payments
I build secure and stable iOS products for digital banking, payments, and trust-heavy financial experiences.
From mobile banking apps to payment SDKs, I focus on reliability, performance, and release quality that holds up in production.
Building secure iOS products for banking & fintech
Years of experience
Banking apps shipped
Crash rate maintained
Production SDK built
I am an iOS Developer with 7+ years of experience building native mobile products, with a strong focus on banking, payments, merchant tools, and SDK development.
My work centers on secure architecture, smooth app behavior, and release quality that can support real users at scale.
- Mobile banking applications
- Merchant QR payment applications
- Payment gateway iOS SDKs
- Security, encryption, and release-quality improvements
- Cross-functional delivery with backend, QA, product, and security teams
Currently open to iOS product roles in banking, fintech, and trust-heavy mobile teams.
Where I've built things that matter
iOS Developer
Vattanac Bank
- Built and maintained a payment gateway iOS SDK to simplify and secure merchant integration
- Shipped a merchant app that allows Vattanac Bank account holders to accept QR code payments
- Delivered features, fixes, and security improvements in the main Vattanac Bank iOS app
- Helped maintain production crash rates below 0.5%
- Worked on banking apps, merchant tools, payment SDKs, reliability, and security-focused delivery
Swift · iOS SDK · Payment Gateway · QR Payments · Security · CocoaPods · SPM
iOS Developer
Vattanac Bank
- Built and maintained a payment gateway iOS SDK to simplify and secure merchant integration
- Shipped a merchant app that allows Vattanac Bank account holders to accept QR code payments
- Delivered features, fixes, and security improvements in the main Vattanac Bank iOS app
- Helped maintain production crash rates below 0.5%
- Worked on banking apps, merchant tools, payment SDKs, reliability, and security-focused delivery
Swift · iOS SDK · Payment Gateway · QR Payments · Security · CocoaPods · SPM
Associate Software Engineer, iOS Developer
Chip Mong Bank
- Built native banking features across iOS and Android
- Worked with Swift, Objective-C, and Kotlin
- Translated business requirements into technical plans, estimates, and release-ready tasks
- Implemented security and encryption features
- Raised technical and performance risks early during delivery
Swift · Objective-C · Kotlin · Security · Encryption · SDLC
Mobile Application Developer (Native iOS and Android)
Codingate Technology Co., Ltd.
- Grew from Junior iOS Developer into broader native mobile delivery across iOS and Android
- Handled full life-cycle development, troubleshooting, and reusable library work for client apps
- Mentored junior developers
- Contributed to CI/CD, code review, and knowledge-sharing practices
Swift · Objective-C · Kotlin · CI/CD · Mentoring · Code Review
Products I've helped build
Production applications trusted by real users in banking and payments
Technical toolkit
Technologies and practices I work with daily
Swift · Objective-C · Kotlin · SwiftUI · UIKit
MVVM · MVC · Coordinator Pattern · Clean Architecture · Protocol-Oriented Programming
Xcode · CocoaPods · Swift Package Manager · Git · Fastlane · CI/CD
Mobile Banking Apps · Payment SDKs · Merchant QR Flows · Security & Encryption · Performance Optimization · Stability Engineering
SDLC · Agile/Scrum · Technical Estimation · Release Management · Cross-functional Delivery
What I bring to the table
Secure by Default
Builds secure and stable banking products with security woven into every layer.
Reliability First
Focuses on stability, crash-rate reduction, and user trust in every release.
Payments Expert
Deep understanding of payment flows, merchant enablement, and QR-based transactions.
Quality & Compliance Balance
Balances feature delivery with compliance requirements and quality standards.
Cross-functional Player
Collaborates effectively with product, QA, backend, and security teams.
Full SDLC Ownership
Comfortable working across the entire software development lifecycle from planning to release.
What my manager shared on LinkedIn
A direct recommendation from Pherum Un during our time working together.
Pherum Un
1st
Lead Development | Digital Banking | System Integration | Software Development | Implementation Engineer
May 3, 2023, Pherum managed Vital directly
Vital is a genuinely nice loving human being, a great person and colleague to us, a hardworking and talented resource, he never says no to any tasks being assigned or asked to help and always looking for helping his teammate as much as he could, it does not matter what time was it he was always there to help.
Watching him walk away from my very own team is painful as a teammate, but also happy for him to grow and get higher in his career and can only be jealous of the next team he will be working with.
Best, Pherum Un
Academic background
Master of Science (M.Sc.) — AI & Data Mining
Royal University Phnom Penh
2022 – 2024
Bachelor's Degree — Computer Science
Royal University Phnom Penh
2013 – 2018
Bachelor of Arts — English for Business and Communication
Paññāsāstra University of Cambodia (PUC)
2013
Let's work together
I'm currently open to iOS product roles in banking, fintech, and trust-heavy mobile teams. Let's connect.
Available for iOS product opportunities