iOS Engineer

Vital Sowath

iOS Engineer - Banking Context

iOS Engineer building reliable banking and payment products with strong security foundations.

From junior to senior in mobile banking teams, I have shipped iOS apps, merchant payment apps, and SDK features used in real banking products.

Portrait of Vital Sowath

Vital Sowath

iOS Engineer

Recruiter scan path

  • Current iOS Developer at Vattanac Bank
  • 7+ years in iOS and mobile development
  • Built payment gateway SDK and merchant QR payment app
  • Sustained production crash rate below 0.5%

Location: Phnom Penh, Cambodia

Experience: 7+ years in iOS and mobile development

Selected impact

Results that helped users trust the app

Real impact from banking mobile projects.

Merchant integration quality

Improved

Fewer recurring integration issues after standardization and guidance updates.

Release reliability

Strong

Stable multi-release delivery with controlled rollout and issue triage.

Security

Stronger

Secure handling patterns were built in by default.

Live apps

Apps I built that are now live on the App Store

Production iOS apps for banking and merchant payments.

iOS

Vattanac Bank

Cambodia App Store

Retail mobile banking app for daily account and payment journeys.

View on App Store

iOS

Vattanac Bank Merchant

Cambodia App Store

Merchant companion app for QR payment acceptance and operations.

View on App Store

How I work

How I work from planning to release

A practical workflow shaped by real banking product needs.

Discovery

Align on user needs, risks, and priorities before coding starts.

Architecture

Use simple, testable patterns with clear ownership and fallback plans.

Delivery

Ship in small steps with quality checks and quick bug fixes.

Hardening

Keep improving stability and security in every release.

Featured cases

Architecture and delivery examples

Each case shows key decisions, risk handling, and clear results.

ArchitectureSecurity/ComplianceDelivery
Payment Gateway iOS SDK Delivery
Built and maintained a production payment SDK that simplified secure merchant integration.

Enabled merchant-side payment acceptance with strong reliability and security expectations.

Merchants needed an integration path that was easier to adopt while preserving banking-grade controls and predictable behavior.

View case
DeliveryPerformanceSecurity/Compliance
Merchant QR Payment App Enablement
Delivered a merchant app flow that allows account holders to accept QR payments reliably.

Extended digital payment accessibility for merchants while keeping the experience stable and secure.

Merchant users needed a smooth QR payment acceptance experience that worked consistently in day-to-day business usage.

View case

LinkedIn posts

What I share publicly on LinkedIn

Simple notes about delivery, teamwork, and engineering lessons.

Jul 16, 2025

3 Lessons on KPI Alignment as a Tech Lead

A practical take on keeping teams aligned when priorities shift, with emphasis on communication and context.

2 reactions

Read post

Jul 14, 2025

Delegating tasks is about creating impact

How to delegate ownership, close the feedback loop, and connect work delivery to real user impact.

6 reactions

Read post

Jul 10, 2025

Tech debt is also a communication problem

Early risk signaling, API/dependency awareness, and feasibility planning for sustainable delivery.

8 reactions, 1 comment, 2 reposts

Read post

Engineering principles

Reliable iOS engineering for banking teams

I build secure and stable iOS banking apps that users can trust.

Reliability over novelty

Trust-critical financial journeys must remain stable under real user pressure.

Maintained crash rates below 0.5% on production banking applications.

Security by design

Security and encryption are built into architecture, not added late.

Implemented mobile security controls in banking products handling sensitive payment data.

Clear ownership and delivery

Teams move faster when responsibilities and release guardrails are explicit.

Led mobile delivery streams from requirements to deployment across cross-functional teams.

Recommendations

People I worked with recommend how I lead and deliver

Direct feedback from teammates and managers who worked with me in production delivery contexts.

LinkedIn Recommendation

May 3, 2023
Profile photo of Pherum Un

Pherum Un

Lead Development | Digital Banking | System Integration | Software Development | Implementation Engineer

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"

Next step

Open to iOS opportunities

Recruiter and hiring-manager pathways are designed for both fast scan and technical depth.