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Senior Fullstack Engineer & Tech Lead — 6+ years experience

The partner Tech & Architecture for startups & scale-ups

I help founders and product teams design, scale and ship secure, ultra-fast web & mobile apps with React, React Native, Node.js & Symfony.

They trusted me with their critical fintech & SaaS architectures

equisafe
datahome
kisamile
happycapital
Expertise

Tech engineering up to your product.

From the first line of code to scaling to millions of users — artisanal rigor paired with the best market standards.

Augmented Architecture

A practice elevated by cutting-edge standards

6+ years architecting React, Node.js and Symfony systems built for high availability, load spikes and strict financial compliance.

Zero unplanned technical debt
360° Stack

Full technical coverage

Frontend • Mobile • Cloud

All the expertise in one senior technical point of contact to accelerate delivery and eliminate silos.

React & React NativeTypeScriptNode.jsNestJSExpressSymfony & PHP 8+Next.jsRedisMySQLPostgreSQLMongoDBDocker & CI/CDAWS & Terraform
E2E tests, security audit & automated CI included
Performance & Scale

Selected at the highest level of requirement

Measurable optimizations: drastic API latency reduction, async ingestion of massive volumes and sub-100ms response times.

-80%
API Latency
5M+
Entities scaled
3 Mois
Fintech MVP Live
Global Readiness

Bilingual FR / EN

Fluid communication is key. Transparent collaboration with distributed teams across Europe, Africa and North America with optimal timezone overlap.

French (Native)English (Fluent)
Jullury

Jullury Andriamazava

Senior full-stack developer (React, Node.js, Symfony) with 6+ years building reliable, scalable systems for growing teams — including fintech

About Me

Senior full-stack developer (React, Node.js, Symfony) with 6+ years building reliable, scalable systems for growing teams — including fintech

I help teams ship secure, production-ready web and mobile applications. My work spans fintech, SaaS, and high-growth startups — from banking integrations and energy-audit platforms to a genealogy product serving 5+ million individuals. Recent wins include an 80% API latency reduction and a fintech launched in just 3 months. I focus on the fundamentals: clean architecture, measurable performance, and shipping on time.

+6
Years Experience
+4
Companies Worked With
+8
Projects Delivered
-80%
API Latency Reduced
Production-Ready Work

Selected Projects

A few projects that show end-to-end delivery, performance at scale, and zero-downtime reliability.

FeaturedKisaMi Le
KisaMi Le

KisaMi Le

Architected and developed a genealogical tree application (React/Electron) consuming a documented REST API, with a hybrid MySQL/Redis database and an asynchronous genealogy import pipeline

SymfonyPHPReactElectron+4
FeaturedCV-Thèque
CV-Thèque

CV-Thèque

Technical leadership and architecture of an internal talent management tool aimed at standardizing and automating the lifecycle of skills records

ReactNext.jsAngularNode.js+5
FeaturedEquisafe
Equisafe

Equisafe

Architected an abstraction layer for third-party services and developed a data-intensive component library

Node.jsTypeScriptREST APIsNestJs
Services

Services

End-to-end development services from one senior engineer — frontend, backend, mobile, and cloud

01

Frontend Development

Creating responsive, interactive user interfaces with modern frameworks and best practices.

  • React
  • React Native
  • TypeScript
02

Backend Development

Building scalable APIs and server-side applications with robust architecture.

  • Node.js
  • NestJS
  • Symfony
03

Mobile Development

Developing cross-platform mobile applications with native-like performance.

  • React Native
  • Progressive Web Apps
  • Responsive Design
04

Cloud & DevOps

Deploying and managing applications on cloud platforms with CI/CD pipelines.

  • Docker
  • Kubernetes
  • Terraform
05

Project Management

Leading projects with agile methodologies and modern management tools.

  • Agile Methodologies
  • Scrum
  • Jira
06

Security & Testing

Implementing security best practices and comprehensive testing strategies.

  • Security Audits
  • Test-Driven Development
  • Unit Testing
Services

Ready to start your project?

Let's discuss how we can work together to bring your ideas to life

Startup window: Available

Let's stay connected.

A project to launch, a technical audit, or need to strengthen your team with an autonomous senior profile?

Antananarivo, Madagascar•Remote Global (US & EU Overlap)•Freelance / Full-time / Advisory