AI in production
Generative AI features built into the product, with controlled data, planned failure handling and tracked usage costs.
OpenAI, Microsoft Azure, Mistral Explore this service AI in production
Pierre Facq Software architect · Staff engineer
Software architecture and AI in production, from decision to code.
New products designed, existing applications taken over, AI integrated where it helps, cloud costs under control. One person accountable, from decision to production.
Based in Mauritius (GMT+4). Remote engagements in English and French.
Published result, AE3 Cloud costs cut to roughly one fifth Before 100
After ~20
Indexed to 100 before the takeover, with equivalent services. Amounts not disclosed.
Three areas of work
Alongside your team, to take over an application or on a defined problem, with the same person from decision to code.
Architecture and application takeover
Take over an application that has stalled, settle the architecture questions and get development moving again.
Assessment, architecture decisions, codebase takeover Explore this service Architecture and application takeoverPerformance and cloud costs
Connect application behaviour with infrastructure to cut slowness and spending that does not serve the product.
Databases, cloud, FinOps Explore this service Performance and cloud costsMain stack. PHP / Symfony, React / TypeScript, relational databases and cloud. PHP/Symfony development
Start with an assessment
A defined starting point before a takeover, a redesign or an AI project. A review of the code, infrastructure and costs, conversations with your team, then a written report.
- Technical risks, ranked by severity.
- The architecture decisions to make, with their options.
- A prioritised action plan that your team or I can implement.
Four products I have been technically responsible for
A payroll and accounting SaaS for Mauritius, built single-handed
- Stakes
- Payroll, VAT and accounting governed by Mauritian law: an error ends up in a tax return.
- Architecture
- Symfony API, installable React interface, Kubernetes, decisions recorded in writing.
- AI
- Photographed receipts read automatically, confirmed by the user.
Taking over an abandoned product and cutting its cloud costs fivefold
Codebase takeover, maintenance, product changes and a hosting redesign, with equivalent services.
Before 100
After ~20
Indexed to 100 before the takeover, with equivalent services. Amounts not disclosed.
Valuing a property by voice
The agent’s dictation is transcribed, its features extracted by AI, then compared with listings for sale around the address.
Generative AI in learning platforms
A complete course generated from a simple request, and an AI tutor for learners, with responsibility for APIs, data and operations.
Independent in delivery. Clear in collaboration.
You speak directly with the person doing the work. I collaborate remotely from Mauritius, in English or French, with a communication rhythm we agree together.
Read my CV (PDF)-
Understand before changing
We clarify the need, product constraints and how your team works. I get familiar with the codebase and existing environment.
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Work with clear priorities
We agree on scope and useful check-ins. I develop, test and explain technical trade-offs as the work progresses.
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Leave a maintainable foundation
Code, decisions and operational information stay available to your team. The outcome should be something you can keep building on.
Trust is built over time.
Feedback from my work with GRDF, published on Malt.
“Pierre Facq listened to our needs and gave us sound advice throughout the development of our tool.” Questions before we start
What kinds of engagements do you take on?
Three formats: ongoing support for your team, an architecture assessment with or without implementation, or ownership of a defined piece of work (takeover, AI, performance). Scope and pricing are agreed around your needs.
How does remote collaboration work?
I work remotely in English and French. We agree on collaboration hours and check-ins with your team. Mauritius is UTC+4, two hours ahead of mainland France in summer and three in winter.
Who do we contract with?
Services are provided through my company Prismyq Ltd, based in Mauritius. We clarify scope, contractual arrangements and any requirements before starting.
How do we get started?
Send me a few lines about your application, what you need and any constraints. We can establish whether my experience fits, then discuss scope, timing and budget.
Let’s talk about your application
A few lines by email is enough. To make the first reply useful, include:
- the application and its stack;
- the problem to solve or the goal;
- a deadline, if there is one.