Who I am
About
I work as an independent engineer, on two kinds of engagement. The first is integration: I am brought into programmes where systems have to exchange data across boundaries nobody designed for. A policy platform and a payment provider, an EMR and a laboratory, a municipal portal and a federal registry. The second is product delivery: a company needs a working application in production and has no team to build it, so I take the whole chain. Data model, API, front end, pipeline, deployment.
The track record behind that: FHIR interoperability across EMR, lab and radiology for a healthcare vendor; municipal-service and cross-border trade portals in Germany; logistics, ticketing and mobile-money payment platforms in Cameroon; and Guidewire PolicyCenter integration flows at a P&C insurer, where I hold three certifications. Alongside client work I ship my own SaaS products solo, payments, CI/CD and production operations included. That is where a good part of the product-delivery practice comes from.
Outside of client work, I publish on my YouTube channel for dev advice, lessons learned and reflections on the craft.
Skills & Tools
Backend
- Java (8, 11, 17, 21)
- Spring Boot
- Spring Security
- Spring Data JPA
- Spring Batch
- Hibernate
- Microservices
- Hexagonal architecture
- REST APIs
- SOAP APIs
- Keycloak
Frontend
- Angular 19
- Angular Universal / SSR
- TypeScript
- RxJS / Signals
- React
- Tailwind CSS
- HTML5 / CSS
Enterprise integration
- Apache Camel
- JMS Messaging
- FHIR / HL7
- OpenAPI / Swagger
- Guidewire PolicyCenter
- Integration Gateway
- App Events
- Gosu
- PCF
Database
- PostgreSQL
- MySQL
- SQL
- Liquibase
DevOps & Cloud
- Docker
- Docker Swarm
- Portainer
- Nginx
- Jenkins
- GitLab CI
- GitHub Actions
- Azure DevOps
- Maven
- Gradle
Testing & Quality
- JUnit 5
- Mockito
- TDD
- SonarQube
- Code reviews
Product & Payments
- Stripe
- OAuth2 / Okta
- Mobile Money
- JasperReports
- SaaS multi-tenant
Certifications
Certifications and training: Guidewire, microservices, P&C insurance
Guidewire Certified Specialist: InsuranceSuite Integration
Guidewire · Release Jasper
Guidewire Certified Specialist: PolicyCenter Configuration
Guidewire · Release Jasper
Guidewire Certified Associate: InsuranceSuite Developer
Guidewire · Release Palisades
Build Microservices
OpenClassrooms
GFT Académie : Property & Casualty insurance, policy lifecycle, performance indicators, group insurance
GFT Technologies
Background
Dec 2024 – Present
Full-Stack Developer, Guidewire Integration Specialist
GFT Technologies · Canada
PolicyCenter transformation programme at a P&C insurer, second phase.
- Designed and maintained REST and SOAP connectors via Integration Gateway to external systems (payment platforms, CRM, document management), using JMS, Gosu and App Events capture (issuance, endorsement, cancellation) with bidirectional data mapping, across the motor policy lifecycle.
- Configured PolicyCenter activity patterns (XML) to automatically create follow-up tasks on functional integration errors.
- Provided technical support to business analysts: integration flow modelling, App Events identification, downstream impact analysis and clarification of Guidewire platform constraints.
- Supported the QA team: test dataset preparation, Camel route scenario walkthroughs, incident debugging and Integration Gateway log analysis.
- Authored integration unit tests and conducted code reviews (PRs) to reduce regressions, working with functional and DevOps teams in Agile ceremonies.
Nov 2023 – Nov 2024
Full-Stack Java Engineer (Consultant)
Kouete Digital Solutions (KDS) · Germany
- Healthcare interoperability: designed a FHIR-based architecture enabling secure data exchange between open-source applications (OpenMRS, OpenELIS, Kapsiki platform) across EMR, lab and radiology workflows.
- Municipal services and cross-border exchange: contributed to the Evia Burger Portal (German citizens' access to municipal services) and the Evia Supplier Declaration Portal (standardised formats for exchanging goods-origin information).
- Built secure REST and SOAP APIs with Keycloak authentication; SOAP endpoints for client-adapter integrations.
- Designed a notification system and a legally compliant electronic document-signing feature.
- Conducted code reviews, took part in Agile ceremonies and delivered every feature with TDD (JUnit 5, Mockito).
Jun 2021 – Oct 2023
Full-Stack Developer, then Tech Lead
Skysoft Technology · Cameroon
- Technical lead on three platforms (freight, SMS gateway and school management): designed the data models and integration layers, ran the architecture reviews and took the team from design through to production rollout.
- Designed and maintained web and mobile applications in hexagonal architecture (Spring Boot, Angular): the SKYTICKET ticketing system (Bluetooth printing, periodic reports) and the Joe-Cargo air/sea freight platform.
- Established a DevOps architecture with Docker (Compose, Swarm, Portainer, Nginx reverse proxy) and Jenkins pipelines automating build, test and deployment.
- Secured the back end with JWT authentication and request interceptors; built secure payment modules for ticket and reservation purchases.
- Integrated SMS and email APIs for customer notifications and documented all APIs with Swagger.
- Used Spring Batch for batch processing and JasperReports for Excel/PDF reports; released to production with backup and recovery procedures.
Education
Sep 2019 – Jun 2022
Bachelor's Degree in Computer Science
Institut Universitaire de la Côte (IUC)
2021
Higher National Diploma (HND), Software Engineering
Institut Universitaire de la Côte (IUC)
Languages
Prefer the CV format?
The full background, skills and engagements in a single PDF, useful if you are putting me in front of a procurement team.
Download the CV (PDF)