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Ny HasinavalonaSenior Software EngineerLet's talk
Paris · AWS · TypeScript · IaC

Senior Software Engineer crafting scalable cloud systems — built to last, not to impress.

JavaScript / TypeScript · AWS · Infrastructure as Code — from Madagascar roots to global-scale systems. I ship reliable platforms with clean boundaries, strong testing, and calm operations.

Trusted by teams at

Warner Bros. DiscoveryEuronewsNumer

Proof

Not buzzwords.

8+ yrs

Building production systems

8+ years building production systems.

Millions

Cloud architectures at scale

Cloud architectures used by millions of users.

Quality

Testing, reliability, maintainability

Strong focus on testing, reliability, and long-term maintainability.

Breadth

Startups to global media groups

Experience across startups, scale-ups, and global media groups.

What that looks like in practice

  • Systems serving ~2 million daily users (Euronews)
  • Event-driven serverless workflows in production
  • Code coverage improvements up to 82%
  • Major TypeScript migrations reducing legacy JavaScript by 70%+

Representative case studies

Event-driven AWS platform

Internal & partner tooling using serverless workflows.

Tech: AWS · Terraform · Serverless Framework

High-traffic media platform

Core framework & API modernization for a ~2M daily users platform.

Tech: TypeScript · AWS · Terraform

SaaS for craftsmen

Full-stack application from concept to production.

Tech: React · TypeScript · Cloud infrastructure

Detailed case studies available on request.

Skills

Cloud & Infrastructure

AWS (Lambda, API Gateway, Step Functions, DynamoDB, OpenSearch, SNS)

Infrastructure as Code (Terraform) · Secure multi-account environments · Serverless & event-driven architectures

Backend & Architecture

API design & integrations

Scalable data models · ETL pipelines · Performance optimization

Frontend & Platforms

TypeScript-first development

React / SPA modernization · Frontend performance & maintainability

Quality & Delivery

Testing strategies

CI/CD & deployment automation · Legacy system refactoring · Technical leadership & mentoring

About

I approach software development as a craft. Not just shipping features, but building systems meant to last.

I started my journey in Madagascar, working on real-world systems early on - where reliability wasn't optional and learning fast was a necessity. That foundation shaped how I work today: pragmatic, rigorous, and deeply focused on quality.

I've since worked across France and international teams, designing cloud architectures, modernizing legacy systems, and leading projects used by millions.

When I commit to a project, I treat it as my own.

Not because I have to, but because that’s how I was taught to work.

Let's work together

Have a project in mind? Let's talk about how I can help.