Description

Senior engineer (~10 years) building reliable, scalable B2B/B2C SaaS and high-traffic platforms. Strengths: Node.js/TypeScript, AWS & GCP, end-to-end delivery, and quality practices (clean architecture, tests/CI/CD, monitoring, documentation). Prefer small-to-medium, product-led teams with hands-on ownership; enjoy mentoring, learning new technologies, and improving user experience.

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Arrowsphere
Senior Backend Developer
December 2025 - April 2026 (4 months)
Paris, France
Led key backend components of a cloud-native data ingestion and analytics platform, focusing on explainable matching systems and reliable partner-facing insights.

Built and evolved data ingestion and matching pipelines processing Microsoft CloudAscent datasets (~200k records/day), powering multi-tenant analytics dashboards (admin, partner, customer) used by ~2,000 B2B partners.
Designed a traceable matching and reporting system to handle imperfect and evolving data, enabling full visibility into matching decisions, identification of data gaps (~10%), and iterative improvement through fallback strategies (secondary sources, fuzzy matching, scoring).
Enabled fast diagnosis of partner data issues without relying on logs or reprocessing, providing deterministic insights into missing or unmatched data and supporting business-driven resolution and trade-off decisions.
Designed OpenSearch indexing and aggregation workflows, exposing high-performance analytics APIs with filtering, sorting, and cursor-based pagination to support reporting and dashboard use cases.
Contributed to backend architecture using AWS (Lambda, Step Functions, event-driven pipelines) to orchestrate ingestion, processing, and enrichment workflows.
Led evolution of AI360 Dashboard backend, aggregating AI model usage and costs across vendors (AWS Bedrock, Anthropic Claude, Microsoft Copilot), including token tracking, normalization, and cross-provider analytics.
Implemented cross-vendor LLM usage analytics to classify models, monitor consumption patterns, and enable cost comparison across providers.
Integrated Microsoft Partner Center APIs to ingest Copilot MAU metrics and expose accurate adoption insights through backend analytics APIs.
Node.js Amazon Web Services AWS Opensearch Tests unitaires DevOps
Warner Bros. Discovery
Senior Full-Stack Developer
FILM AND AV
February 2023 - February 2024 (1 year)
Paris, France
Scaled voucher services to 3–5k req/min at product launches; served ~200k+ weekly users and reduced latency from >5 s to <500 ms at peak

Shipped GDPR-compliant SMS/email and Okta authentication

Rebuilt CI/CD with per-branch environments to speed feedback and improve release reliability

Implemented OpenSearch for my services and background jobs as part of a wider initiative; collaborated with the product team to create KPI dashboards

Contributed to team standards and knowledge sharing with clear documentation and automated tests to reduce regressions

Squad of 5; role: senior full-stack developer (architecture + delivery)
Amazon Web Services Node.js React.js DynamoDB Opensearch
Epoca health
BackEnd Developer
HEALTH AND WELLNESS
July 2022 - Today (3 years and 11 months)
I worked for Epoca Health as Backend developer.

During my missions I worked on:
- pub/sub google cloud functions
- NestJS REST APIs
- permissions with Open Policy Agent
- implementing the send of emails/sms
- firebase authentification
Google cloud NestJs Node.js Terraform Cloud Spanner