Professional websites
Design & rebuild
Modern, fast, responsive websites for businesses and organisations — new builds or redesigns of an existing site.
Professional websites &
payment solutions integration
We build professional websites and integrate payments (mobile money, cards) directly into them — fintech expertise included.
Studio
Services
★ Différenciateur
Payment integration
The differentiator
Integrate mobile money (Orange Money, Wave, MTN MoMo) and card payments into your site or app — 5+ years fintech experience, production-grade, secure.
Backend & APIs
Java / Spring Boot
Robust backend services, payment connectors and API integrations for reliable, scalable systems.
Cloud & technical advisory
GCP · Architecture · Audit
Cloud architecture (GCP), hosting, reliability and technical audits for ambitious projects.
Portfolio
Selected work
CAPLA English
Developer
Contexte
Online learning platform for English courses.
Ce qui a été fait
Designed and deployed the e-learning module: course delivery, content distribution, learner management.
Résultat
Live platform, accessible to learners.
Moodle (LMS)
View site SeneDelices
Developer
Contexte
Online store selling local/African products for the French market.
Ce qui a été fait
Set up the e-commerce store, product catalogue and checkout flow.
Résultat
E-commerce store available in EURO and XOF.
PrestaShop
View site Financial transaction engine
ConfidentielLead engineer — major clients & reliability
Contexte
Manage high-volume financial transaction processing for major West African fintech operators.
Ce qui a été fait
Responsible for the platform's major clients and the reliability of the transaction engine across multiple West African markets.
Résultat
Engine processing 1,000,000+ transactions/day across 9 countries (ECOWAS + Guinea).
Java Spring Boot GCP Cloud SQL
Fondateur
About
Alioune Sarr
Problem Solver · Team Leader · Software Engineer
5+ years in fintech, designing, building, and deploying scalable payment solutions and secure financial systems. Proven leadership across cross-functional, multicultural teams.
- Payment engine deployed across 9 West African countries (ECOWAS + Guinea)
- 1,000,000+ transactions processed per day
- Migrated databases holding 1 billion+ transactions for scalability & performance
- Led and mentored development teams; champions OWASP secure practices
- Formation
- Engineer's Degree in Computer Science, Thiès Polytechnic School (EPT)
- Langues
- French (native) · English (fluent)
- Localisation
- Dakar, Senegal
Poste actuel
Deputy Core Processing Manager
Intouch SA
May 2025 – present
Leading the modernisation of legacy systems toward a scalable, resilient architecture. Mentoring developers and internal trainers.
9
pays couverts
1M+
transactions/jour
5+
ans en fintech
1B+
transactions migrées
Stack technique
Skills & stack
Payments & Fintech
Orange Money Wave MTN MoMo Card payments WooCommerce PrestaShop High-volume processing
Soft skills
Leadership Team management Mentoring Communication Problem solving Adaptability
Languages
Java (Spring Boot) Python (Flask, Django) Dart (Flutter)
Backend
Spring Boot REST APIs System Design
Front-end
React.js HTML CSS Bootstrap
Cloud & DevOps
GCP Cloud SQL Cloud Run Kubernetes GitLab CI Jenkins Maven
Data
MySQL PostgreSQL Cloud SQL MongoDB
Practices
Scrum CI/CD Leadership Mentoring
Travaillons ensemble
Contact
Got a project in mind? Write to me.