A decade in payments engineering · AI-accelerated delivery

EMV L3 Certification & Testing ISO 8583 Payment Switch Integration POS Payment Applications Payment Platforms, Portals & Orchestration

Level 3 certification is where payment projects most often stall — especially once you're queued behind someone else's lab. We run UL Brand Test Tool and FIME toolsets in-house, so the timeline is ours to control.

A payment application is only as good as its host connection. We implement ISO 8583 and proprietary switch protocols from spec — byte by byte, robust under real-world network conditions.

EMV payment applications for smart POS terminals — built by engineers who know each vendor's SDK, kernel quirks and certification path from experience.

Terminals are only half the story. We build the web platforms around your payment estate — onboarding merchants, reporting on transactions and unifying every payment mode in one view.

Start Your Project Explore Services
  • Payment technology specialists
  • Bespoke software & backend services
  • Custom mobile applications
⚙ Experts LeadAI accelerates
delivery — pipeline 
ARCHITECTURE  : designed by senior engineers
DOMAIN        : 10+ yrs payments & software
BUILD         : AI-assisted, expert-reviewed
QA            : automated + human verification
TIMELINE      : compressed, not compromised
──────────────────────────────
DELIVERY      : ON SPEC · ON TIME ✓
✓ Payments FlagshipEMV · ISO 8583 · L3

Payment terminal platforms we have shipped on

IngenicoPAXSunmiNexgoKozenMiuraDspreadFeitianUrovoBBPOS+ more
10+
Terminal Platforms Shipped
3
Card Schemes — Visa, Mastercard, Amex
100%
In-House FIME & UL Tooling
10+
Years in Payments Engineering
Why It Matters

The Certification Timeline Is Ours to Control

Most integrators rent time on a UL or FIME lab, or subcontract the whole L3 campaign to a third-party test house — then queue behind every other client on that lab's calendar. We run UL Brand Test Tool and FIME toolsets in-house, so a payments campaign runs on our schedule, not a shared one. Our certification team has taken terminal deployments through this exact process for tier-1 banks worldwide.

Explore L3 Certification
What We Do

Payments Engineering, Built to Certify

A specialist payments practice — POS applications, switch integration and L3 certification — backed by the bespoke software, mobile and backend work that supports it.

UL BTT · FIME Certified Testing

L3 Certification & Testing

Level 3 test campaigns with UL Brand Test Tool and FIME toolsets — through to scheme certification.

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EMV · Contact & Contactless

POS Payment Applications

EMV contact and contactless payment apps for Android and Linux smart POS terminals — built on 10+ vendor platforms.

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Fluent in ISO 8583

Payment Switch Integration

Host integrations over ISO 8583 and every switch's proprietary protocol — keys, MACs, reversals, reconciliation and settlement.

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EMV · SoftPOS · QR · eCommerce

Payment Platforms & Portals

Merchant onboarding portals, admin & reporting panels, and orchestration layers unifying EMV, SoftPOS, QR and eCommerce payments.

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Built Around Your Business

Bespoke Software Development

Custom web applications, enterprise platforms and eCommerce systems designed around your business — not the other way around.

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iOS · Android · Cross-Platform

Custom Mobile Applications

Native iOS and Android, or cross-platform with Flutter and React Native — designed, built and shipped to the stores.

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APIs · Data · Cloud

Backend Services & APIs

The engine room of your product — scalable APIs, databases and integrations that make your app work efficiently, when you need them.

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How We Build

Engineers First. AI as a Force Multiplier.

We're not an "AI shop" — we're a software engineering company that refuses to work slower than it has to. Here's exactly how that works.

1

Experts Lead

Senior engineers architect, design and own every system we ship. Decisions about security, data and structure are made by people who have built these systems for over a decade.

2

AI Accelerates

We use AI development tools — Claude Code, GitHub Copilot, Cursor and more — to compress timelines dramatically. You get the same expert-built system, weeks or months sooner.

3

Quality Multiplied

AI-assisted code review, test generation and static analysis run alongside rigorous human review. More eyes on every line — artificial and experienced.

4

Domain Knowledge Wins

No tool knows your payment switch's quirks or your industry's regulations. Our decade of domain experience is what turns fast output into the right system.

Flagship Practice

Payment Technology, End to End

Payment software is unforgiving — every byte in every field matters. Our engineers live in EMV kernels, ISO 8583 dumps and certification logs, so your product reaches market faster and passes certification the first time.

  • POS payment applicationsEMV contact & contactless on Android and Linux terminals
  • Switch & host integrationISO 8583 and proprietary protocols, keys, MACs and settlement
  • L3 testing & certificationUL Brand Test Tool and FIME toolsets through scheme sign-off
Explore the Payments Practice

50+ projects delivered from Sandton, South Africa and Lahore, Pakistan.

Protocols & Standards

ISO 8583EMV L1/L2Contactless / NFCDUKPTMaster / Session KeysPCI DSS aware

Testing & Certification

UL Brand Test ToolFIMEHost SimulatorsRegression Suites
How We Work

A Proven Delivery Process

From the first workshop to post-launch support, you always know where your project stands.

01

Discover

Requirements, constraints and success criteria defined together with your team.

02

Design

Solution architecture, UX flows and security design by senior engineers.

03

Develop

AI-accelerated sprints with expert review and working demos throughout.

04

Verify

Automated and human QA — through to L3 certification for payment products.

05

Support

Production rollout, monitoring, updates and ongoing maintenance.

Technologies & Tools

The Stack Behind Our Work

Proven technologies chosen for the job — and the specialist payment and AI tooling that sets our delivery apart.

Payments & Certification

ISO 8583EMV L1/L2Contactless / NFCUL Brand Test ToolFIMEDUKPT

Mobile

SwiftKotlinFlutterReact NativeFirebase

Frontend

ReactAngularVueTypeScript

Backend & Frameworks

Node.jsPythonJavaPHPLaravelDjangoSpring Boot

eCommerce & CMS

WordPressShopifyWooCommerceMagentoDrupal

AI-Accelerated Delivery

Claude CodeGitHub CopilotCursorAI-Assisted QA
Industries

Domains We Serve

💳 Payments & Fintech 🏦 Banking 🛍️ Retail 🏥 Healthcare 🎓 Education 🚚 Logistics 🏨 Hospitality 🏠 Real Estate 📺 Media 🏭 Manufacturing
FAQ

Questions We're Asked Often

Do you use AI to build software?
Yes — deliberately and transparently. Senior engineers design and own every system we ship, drawing on more than a decade of industry experience. We use AI development tools like Claude Code, GitHub Copilot and Cursor to deliver faster and to strengthen quality through AI-assisted review and testing. AI accelerates our experts; it never replaces their engineering judgment.
Which POS terminals do you support?
We have shipped payment applications on Ingenico, PAX, Sunmi, Nexgo, Kozen, Miura, Dspread, Feitian, Urovo, BBPOS and more — integrated with payment switches over ISO 8583 and proprietary protocols, and certified through L3 testing with UL and FIME tools.
Can you build the backend for my mobile app?
Yes. We build custom mobile applications and the backend services that make them work efficiently — APIs, authentication, databases, third-party integrations, hosting and ongoing operation. One team, both halves of your product.
Where are you located?
We operate from Sandton, South Africa and Lahore, Pakistan — giving clients responsive coverage across time zones and cost-effective delivery. We work with clients worldwide.
Do you provide EMV L3 brand certification services in Pakistan and South Africa?
Yes. Operating out of Lahore, Pakistan and Sandton, South Africa, Deazitech provides end-to-end Level 3 (L3) brand certification campaigns for acquirers, terminal vendors, and fintechs using UL Brand Test Tool and FIME toolsets across Visa, Mastercard, and Amex.
What ISO 8583 switch protocols and terminal platforms do you integrate?
We specialize in ISO 8583 (1987/1993) switch integrations, DUKPT key management, and custom payment application development on Android POS devices including Ingenico, PAX, Sunmi, Nexgo, and Miura.

Have a Project in Mind?

A new platform, a mobile app, a payment product or a certification deadline — tell us about it and we'll come back with a concrete plan, timeline and team.

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