Build, launch, and scale -
all without an internal team.

I help startups and businesses turn ideas into reality - without hiring an internal team. Automated, scalable solutions that ship fast and work reliably.

Let's work together See my work

Antananarivo, Madagascar

About

Engineer, entrepreneur, and builder at heart.

I'm Fabien Halaby - a fullstack developer and tech entrepreneur based in Madagascar, building at the intersection of AI, automation, and product engineering.

I believe one focused person with the right tools can build what used to require an entire team. That's what I do for clients - and what I'm proving with Ainga, the AI quality control startup I co-founded.

When I'm not shipping code, I'm studying systems, startups, and the next wave of autonomous AI agents.

Years building

10+

Projects shipped

Startup co-founded

∞

Problems to solve

Tech stack

Backend

GoNestJSPythonFastAPIPostgreSQLMySQLRedisKafka

Frontend / Mobile

ReactNext.jsReact NativeExpoTypeScriptTailwind

AI / Data

LangChainLangGraphRAGMCPOpenAIDoclingscikit-learn

Automation

n8nMakeZapierWebhooks

Services

Three ways I can help you move faster.

Clear, focused services - pick what you need, or combine them as your project grows.

AI Agents

AI that reasons, decides, and takes action on its own - not just a chatbot answering questions.

I design and build agents that understand context, retrieve information from your own data, plan across multiple steps, use tools, and execute tasks end to end - not just generate a response, but actually get the work done, with human handoff when needed.

Agents that complete multi-step tasks autonomously, not just answer questions
Tool use: querying databases, calling APIs, updating systems on their own
Internal agents that search and reason over your company data
Real decision-making based on context, not fixed scripts

LangChainLangGraphRAGMCPPython

Automation

Your existing tools, connected and running on their own - no new software to learn.

I connect the tools you already use - CRM, email, spreadsheets, forms, calendars - so information flows between them automatically, following clear rules you define. No manual copy-pasting, no forgotten follow-ups, no one checking five apps a day just to keep things moving.

Connecting your CRM, email, sheets, and business apps
Automating repetitive admin, ops, and reporting tasks
Automatic alerts and notifications when something needs attention
Syncing data between systems that don't talk to each other today

n8nMakeZapier

MVP & Rapid Prototyping

From idea to a testable product in weeks, not months - so you can validate before investing further.

I build the first version of your product - web, mobile, or AI-powered - fast enough to test with real users, and solid enough that it doesn't need to be rebuilt from scratch once it works. Same standards as a production app, just scoped down to what matters first.

Web or mobile app your users can actually try
Backend built to scale, not a disposable prototype
AI features built in from day one if your product needs them
Clear scope and fast delivery, so you can test and iterate

ReactNext.jsGoReact Native

How I work

Feasibility & Audit

Understanding your needs and validating what's technically possible.

Design

Defining scope, architecture, and priorities.

Development

Building, with regular check-ins along the way.

Delivery & Support

Going live, handover, and adjustments after launch.

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Projects

Things I have built.

A selection of products and tools I designed, developed, and shipped.

Featured · AI SaaS · Co-founder

Ainga

Operational memory platform for businesses. Captures fragmented knowledge from your teams, maps your business processes, and makes it executable by AI agents without modifying your existing systems. Zero hallucination. On-premise Madagascar.

PythonNext.jsLLMRAGPostgreSQLDocker

Blog