🌐 Hey, I’m Frank Odey

FinTech Integration Engineer | Backend (Python/NodeJS) | Cloud & DevOps

I'm a FinTech Systems Engineer specializing in transaction processing, payment integrations, cryptographic key management, and cloud-native infrastructure.
I build the technical backbone that powers POS terminals, payment gateways, card transactions, and secure financial communications.

I’ve engineered ISO8583 processors, HSM encryption SDKs, POS/MPOS integrations, and DevOps automation for fintechs and financial institutions — including implementations with NIBSS, PTSPs, UPSL, OPAY, HabariPay, eTranzact, and SmartCash.

I love building reliable, secure, clean financial infrastructure.

🚀 Core Competencies

💳 FinTech & Payments

• ISO8583 Message Processing

• HSM (Thales) — ZPK/ZMK Encryption

• PIN Block Translation

• POS / mPOS Integrations

• NIBSS / UPSL / PTSPs / Terminal Management

• Key Exchange & Cryptographic Algorithms

• Transaction Message Simulation

🧠 Backend Engineering

• Python · NodeJS · C#

• REST APIs · Microservices

• Fraud Detection Algorithms

• Secure backend system design

☁️ Cloud & DevOps

• Docker · Kubernetes · Terraform

• CI/CD (GitHub Actions, Jenkins)

• Observability (FluentBit, Logging Pipelines)

• Distributed Systems

🗄️ Databases

• PostgreSQL · MSSQL · MySQL · MongoDB

🔥 Flagship Projects

Below are some of my strongest engineering achievements.

1. 🔐 HSM Encryption SDK (Python)

Custom SDK for working with Thales HSM, enabling:
✔ ZPK encryption
✔ Key translation
✔ Secure key exchange flows
✔ Integration for POS/terminal vendors

Tech: Python, HSM APIs, Cryptography

👉 Check Repo

2. 💳 ISO8583 Message Processor

A full ISO8583 engine capable of:

• Building & parsing bitmaps

• Supporting 0100/0200/0210/0400 flows

• Supporting POS, ATM & web gateways

• Plug-in architecture for custom message specs

Tech: Python or NodeJS, ISO8583 spec

👉 Repo link

3. 🧪 Transaction Message Simulator (C# + NodeJS)

A simulator for fintech/payment testing:

• Generates mock POS/NIBSS/UPSL messages

• Sends ISO8583 requests to switches

• Simulates reversals, declines, timeouts

• Used for partner onboarding/testing

👉 Repo link

4. 🐳 APOS Integration Automation Pipeline

Automated onboarding + integration pipeline for APOS terminals.

• Reduces manual integration time

• Validates merchant configuration

• Automates ISO payload generation & validation

Tech: Docker, Python, CI/CD

👉 Repo link

5. 🧠 Payment Fraud Detection Algorithm

Lightweight rules-based system for identifying suspicious transactions.

• Velocity checks

• Pattern detection

• Geo-risk indicators

• Transaction profiling

Tech: Python, Data Structures, AWS EC2

👉 Repo link

🏢 Professional Experience

Integration Support Engineer — Zone

FinTech switching, POS/MPOS, NIBSS/PTSA integrations, ISO8583, HSM, APOS pipelines.

Software Developer (Python) — Husteen Technology (UK)

Payment APIs, fraud detection, multi-tenant Kubernetes, Stripe integration.

Software Support Engineer — OpenText (Remote)

Enterprise cloud operations, microservices deployment, RCA.

🛠️ Tools & Technologies I Use

📫 Let’s Collaborate

If you're working on:
✔ Payment processing systems
✔ POS/MPOS integrations
✔ ISO8583-based gateways
✔ Secure fintech infrastructure
✔ Cloud-native microservices

I’d love to connect.

📧 Email: frankodey2@gmail.com
🔗 LinkedIn: https://linkedin.com/in/frankodey
💻 GitHub: https://github.com/FrankOdey

⭐ Fun Philosophy

I like building systems that:

• Never break silently

• Scale elegantly

• Stay secure by design

• Are simple inside, even if complex outside