You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Loharanontsoa Lalaharinaivo SinaëlLL

Loharanontsoa Lalaharinaivo Sinaël

Full Stack Web Developer

€280/day
Antananarivo, MG
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Loharanontsoa

+50% loading speed. Smooth 60 FPS mobile apps. Serverless architecture ready to scale.

Hello, I am a Full-Stack & Mobile Developer expert in the modern Next.js, Supabase, React Native, and Flutter ecosystem. My goal is simple: to design high-velocity applications that combine an instantaneous user experience with a robust, secure, and ROI-optimized technical infrastructure.

Why collaborate with me on your project?:
👉 Absolute Web Performance: I optimize your Core Web Vitals via Next.js (SSR, SSG, ISR) to halve your loading times, reduce bounce rates, and maximize your SEO conversion

👉 Serverless & Scalable Back-end: I architect your Supabase (PostgreSQL) infrastructure. I manage fine-grained indexing, real-time streams, security (RLS), and the deployment of Edge Functions to ensure minimal response times under heavy load.

👉 Cross-Platform Mobile Applications: Thanks to Flutter and React Native, I deliver a single, fluid application (iOS & Android) from a single codebase, accelerating your time-to-market without compromising on quality.

Whether it's launching a high-performance MVP in record time or cleaning up the technical debt of an existing platform, I act as a true technical partner. I am not just an executor: I bring a critical eye and product vision. I deliver clean, tested, documented code ready to be taken over by your teams.
💬 Have a tech project in mind or a performance audit to conduct? Contact me now to discuss your technical and business objectives!
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Freelance
    Full Stack Web Developer
    January 2024 - Today (2 years and 5 months)
    Independent Lead Developer, specializing in delivering custom web and mobile solutions. I oversee projects from start to finish, ensuring scalable, adaptable, and high-quality applications that meet client goals and are designed for long-term success.
    Next.js Laravel Docker DevOps
  • SOFTLAB SARLU
    Fullstack Developer Intern
    August 2023 - November 2023 (3 months)
    Spearheaded the digital transformation of academic credentialing and ministerial results verification processes by engineering a highly compliant, full-stack platform leveraging the Next.js framework and Laravel API to ensure scalable data integrity and security across governmental systems
  • MEFTP madagascar
    Fullstack Developer Intern
    August 2023 - November 2023 (3 months)
    Engineered a high-availability, full-stack scheduling solution, leveraging the Next.js framework and Laravel API to deliver a scalable, secure, and architecturally robust platform capable of handling complex booking workflows

Recommendations

Be the first to recommend Loharanontsoa

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor of Science
    National School of Computer Science
    2024
    Bachelor of Science
  • Master of Science
    National School of Computer Science
    2026
    Master of Science

Skill set

Categories