<YOUSSEF MAHERSI/>
FR

FIG.00 — HERO

Youssef Mahersi

FULL-STACK / DEVOPS ENGINEER

ETNA graduate with 3 years of experience at Adenis / Everbloo. I have worked on projects in air transport, online payments, travel tech and large-scale data processing. Independent and performance-minded, I design robust applications that fit the business need.

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GOBACKEND COREVUE.JSFRONTENDGRAPHQLAPI LAYERPOSTGRESQLDATABASEKUBERNETESORCHESTRATIONADYENPAYMENTS

FIG.01 — ABOUT

About

Je conçois et développe des systèmes backend et des interfaces qui tiennent la charge. Mon terrain : les architectures distribuées, le traitement de données à forte volumétrie et les flux de paiement sécurisés.

Trois ans chez Adenis / Everbloo m'ont mené du traitement de données du transport aérien à l'intégration de paiements pour des agences de voyages. J'interviens sur toute la chaîne : conception technique, développement, optimisation des performances, déploiement et orchestration.

AREAS OF WORK

AIR TRANSPORT

TODO — to be specified

ONLINE PAYMENTS

Adyen, 3D Secure

TRAVEL TECH

Platforms for travel agencies

LARGE-SCALE DATA

High-volume imports

FIG.02 — EXPERIENCE

Experience

CLIENT: TOURCOM

2025-2026

High-volume data processing platform

FULL-STACK ENGINEER

I designed an import and processing system for high-volume data, from the backend engine through to the monitoring interfaces.

5M+

ROWS MANAGED IN DATABASE

TODO

PROCESSING TIME SAVED

TODO

VOLUME HANDLED PER IMPORT

WHAT I DID

  • Designed an import system optimised for large data volumes
  • Built batch processing pipelines
  • Tuned performance through a multithreaded approach
  • Developed backend services in Go
  • Managed and optimised databases of more than 5 million rows
  • Introduced data partitioning to improve performance
  • Built GraphQL APIs and real-time streams over SSE
  • Built frontend interfaces in Vue.js / TypeScript

STACK

  • GO
  • VUE.JS
  • TYPESCRIPT
  • POSTGRESQL
  • GRAPHQL
  • SSE

ADYEN INTEGRATION

2024-2025

Payment platform for travel agencies

FULL-STACK ENGINEER

I contributed to the design and development of a payment platform for travel agencies, integrating the Adyen API and 3D Secure flows.

TODO

TRANSACTIONS PROCESSED

TODO

PAYMENT SUCCESS RATE

WHAT I DID

  • Technical design of the payment platform
  • Contributed to the code architecture and project structure
  • Integrated the Adyen payment API
  • Implemented secure 3D Secure payment flows
  • Handled payment callbacks, transaction states and error cases
  • Improved the security and reliability of the payment journey

STACK

  • ADYEN
  • 3D SECURE
  • API REST
  • TYPESCRIPT

MAJOR ACADEMIC PROJECT — ETNA

2024-2026

B2B ordering and delivery platform

PROJECT LEAD / FULL-STACK ENGINEER / DEVOPS

I led a large-scale school project close to a B2B Uber Eats model: mobile app, web dashboard and microservice architecture.

7

PEOPLE IN THE TEAM

6

MICROSERVICES DEPLOYED

WHAT I DID

  • Ran the project end to end and coordinated the team
  • Defined the technical architecture around microservices
  • Backend services communicating over gRPC
  • Deployment and orchestration with Docker and Kubernetes
  • Infrastructure automation with Ansible
  • Mobile application in React Native
  • Web dashboard for business operations
  • Technical mentoring and progress tracking

STACK

  • MICROSERVICES
  • gRPC
  • DOCKER
  • KUBERNETES
  • KONG
  • ANSIBLE
  • REACT NATIVE

FIG.03 — SKILLS

Skills

Payments

DIFFERENTIATOR

Secure payment flow integration

  • ADYEN
  • STRIPE
  • 3D SECURE

Frontend

  • VUE.JS
  • REACT
  • REACT NATIVE
  • TYPESCRIPT
  • JAVASCRIPT

Backend

  • GO
  • NODE.JS
  • NEXT.JS

APIs & Communication

  • GRAPHQL
  • gRPC
  • REST
  • SSE

Databases

  • POSTGRESQL
  • MYSQL
  • MONGODB

DevOps & Infrastructure

  • DOCKER
  • KUBERNETES
  • ANSIBLE
  • GITHUB ACTIONS
  • ARGO CD
  • GITLAB CI/CD

Architecture & Performance

  • MICROSERVICES
  • BATCH PROCESSING
  • MULTITHREADING

FIG.04 — PROJECTS

Projects

MAJOR ACADEMIC PROJECT — ETNA

2024-2026

B2B ordering and delivery platform

Microservice architecture, mobile app and web dashboard for a B2B take on the Uber Eats model.

  • MICROSERVICES
  • gRPC
  • DOCKER
  • KUBERNETES
  • ANSIBLE
  • REACT NATIVE

VIEW CASE STUDY →

PERSONAL PROJECT

TODO

TODO — Personal project 1

TODO — one-sentence description of the project.

  • TODO

VIEW CASE STUDY →

PERSONAL PROJECT

TODO

TODO — Personal project 2

TODO — one-sentence description of the project.

  • TODO

VIEW CASE STUDY →

FIG.05 — CONTACT

Contact

I'm open to full-stack and DevOps opportunities. Tell me about the role or the project — I reply quickly.