iOS BANKING & FINTECH

Vital Sowath

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.

Phnom Penh, Cambodia · Currently at Vattanac Bank

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About Me

Building Secure iOS Products for Banking & Fintech

Years of Experience

Banking Apps Shipped

<0.5%

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 applicationsMerchant QR payment applicationsPayment gateway iOS SDKsSecurity, encryption, and release-quality improvementsCross-functional delivery with backend, QA, product, and security teams

Currently open to iOS product roles in banking, fintech, and trust-heavy mobile teams.

Years of Experience

Banking Apps Shipped

<0.5%

Crash Rate Maintained

Production SDK Built

Experience

Where I've Built Things That Matter

iOS Developer

Vattanac Bank

Banking

Jul 2023 – PresentPhnom Penh, Cambodia

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

SwiftiOS SDKPayment GatewayQR PaymentsSecurityCocoaPodsSPM

iOS Developer

Vattanac Bank

Banking

Jul 2023 – PresentPhnom Penh, Cambodia

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

SwiftiOS SDKPayment GatewayQR PaymentsSecurityCocoaPodsSPM

Associate Software Engineer, iOS Developer

Chip Mong Bank

Banking

Nov 2021 – Apr 2023Phnom Penh, Cambodia

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

SwiftObjective-CKotlinSecurityEncryptionSDLC

Mobile Application Developer (Native iOS and Android)

Codingate Technology Co., Ltd.

Software House

Dec 2018 – Sep 2021Phnom Penh, Cambodia

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

SwiftObjective-CKotlinCI/CDMentoringCode Review

Projects

Products I've Helped Build

Production applications trusted by real users in banking and payments

Vattanac Bank

Mobile Banking App

Retail mobile banking app for daily account and payment journeys. Serving thousands of active users with reliable, secure banking experiences.

iOSSwiftMobile BankingSecurityProduction

View on App Store

Vattanac Bank Merchant

Merchant Payment App

Merchant companion app for QR payment acceptance and operations. Enables Vattanac Bank account holders to accept QR code payments seamlessly.

iOSSwiftQR PaymentsMerchant ToolsProduction

View on App Store

Skills

Technical Toolkit

Technologies and practices I work with daily

Languages & Frameworks

SwiftObjective-CKotlinSwiftUIUIKit

Architecture & Patterns

MVVMMVCCoordinator PatternClean ArchitectureProtocol-Oriented Programming

Tools & Package Management

XcodeCocoaPodsSwift Package ManagerGitFastlaneCI/CD

Specializations

Mobile Banking AppsPayment SDKsMerchant QR FlowsSecurity & EncryptionPerformance OptimizationStability Engineering

Delivery & Collaboration

SDLCAgile/ScrumTechnical EstimationRelease ManagementCross-functional Delivery

Strengths

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.

Recommendation

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

Education