Welcome to my portfolio
MAHERY ONINIAINA
Full-Stack & AI Developer
I design and ship web applications and LLM agents end to end: Python and TypeScript back ends, React / Next.js front ends, API integrations, testing and production releases.
About me
Mahery Oniniaina
Full-Stack & AI Developer
Full-Stack & AI Developer
Full-stack developer specializing in AI, I work end to end: Python (FastAPI) and TypeScript (Node.js / Fastify) back ends, React / Next.js front ends, API and webhook integrations, databases, testing and production releases. I studied computer science at IT University (4 years) and I am now pursuing an MSc in Big Data & Artificial Intelligence (BIHAR) at ESTIA.
For a French AI-agent SaaS platform (3,000+ active users), I design and ship AI agents that automate customer support, marketing and sales. In 2026, I won the 24h by WebCup hackathon in Madagascar as captain of team Mindstack.
Skills & technologies
The languages, frameworks and tools I use every day
AI & agents
Frontend & mobile
Back end & languages
Databases
Tools & DevOps
Professional experience
Where I have worked
Full-Stack & AI Developer
Agentova.ai
AI agents, email pipeline and full-stack development
Ongoing- →Design and ship AI agents (email, customer-support chat) that automate customer support, marketing and sales, from prompts and tools to production release.
- →Rebuilt the email pipeline: Gmail, Outlook and IMAP intake via webhooks, LLM message triage, RAG over message history (Weaviate) and per-contact memory.
- →Full-stack development: Python (FastAPI) and TypeScript (Node.js / Fastify) back ends, React / Next.js front ends, OAuth integrations (Google, Microsoft, Meta).
- →Production reliability: locks, retries and circuit breakers, automatic IMAP mailbox recovery, direct Gmail and Outlook API calls instead of a paid proxy.
- →Co-authored the OpenAPI contract of the public API (automations, leads, webhooks), used by the n8n and Zapier connectors.
- →Quality: unit and e2e tests, prompt test bench on fixed cases, per-pull-request test environments, code reviews.
Mobile & AI Developer
OCEANTRADE Madagascar
iOS app and AI assistant (Elecdis CSMS)
4 months- →Built an intelligent assistant (FastAPI, spaCy, scikit-learn) covering intent classification and response generation, with real-time tracking of model learning and training data.
- →Designed and built the iOS app (Swift & SwiftUI) for the Elecdis CSMS EV-charging services, integrating its REST APIs, including the assistant's, and improving the user experience.
Projects
Client projects I designed, built and shipped
Client project: ticketing for INSCAE's ARITEFY graduation event. Next.js booking with an interactive 3D seating map (360 seats), real-time pre-booking, Mobile Money payments and QR-code e-tickets. Back office: booking and payment tracking and validation.
Client project: website for the Hair'Zou Beauté hair and beauty salon. Online appointment booking, shop, customer area with email-code login, real-time messaging and back office; Next.js, Prisma and PostgreSQL.
Client project: website for the Malagasy rap crew Illicit Soul. Next.js and Payload CMS, merch shop, music catalogue, signed QR-code tickets, three.js 3D scenes and Playwright e2e tests.
Awards
Prizes and competitions, with the public announcements
Winner of the 24h by WebCup 2026 hackathon – Madagascar
WebCup Madagascar
Captain of team Mindstack, 1st of 24: qualified for the international final. Terra Nova platform, 103 features built in 24 hours.
See the proof
Education & certifications
Academic background and certifications
MSc Big Data & Artificial Intelligence (BIHAR)
ESTIA Institute of Technology, France
Master of Science in big data and artificial intelligence, in progress.
Computer Science – Bachelor's degree (4 years)
IT University, Antananarivo
Coursework: machine learning, cybersecurity, algorithms, mobile development.
TEFL Certificate (Teaching English as a Foreign Language)
ITTI Madagascar
English level: C1.
French B2
Alliance Française Madagascar
Advanced, professional French; university studies taken in French.
Baccalauréat, Series C
ESCA Antanimena
Science track: mathematics and physical sciences.
Contact me
An opportunity, a project or a question? Get in touch.
Let's stay in touch
I'm always open to new opportunities and collaborations. Feel free to reach out!