Design aligned with your business
- Scoping workshops with your key users
- Interactive mockups before any code
- Functional specifications validated point by point
Service 3 — Custom development
Custom software development when no existing tool fits
From industrial machine interfaces to e-commerce sites and internal business applications, Lexa designs and builds the solution suited to your process — with no compromise on technical quality or on integration with your other systems.
Not every business process fits into an ERP or an off-the-shelf software. When the need is too specific, too niche or too critical to go through a generic solution, custom development becomes the only real choice. Lexa treats that need as an engineering discipline, not as a string of services.
Scope of our developments
Industrial software & IoT
Machine interfaces, lightweight SCADA supervision, sensors, real-time OEE, OPC UA / Modbus / MQTT integrations.
E-commerce sites
B2C or B2B stores integrated with your ERP, marketplaces, online payment, local carrier connectors.
Internal business applications
Specific tools for your processes: shop-floor time tracking, intervention management, customer portals, production monitoring.
API integrations & middleware
Connectors between your existing systems, OEM EDI, banking bridges, messaging platforms.
Modernisation of existing applications
Overhaul of legacy tools (FoxPro, Access, old PHP apps) to a durable stack, without losing the business history.
Dashboards & decision-making tools
Consolidated reporting, business KPIs, role-based access, configurable exports. Plugged directly into your source systems.
The problems we address
The recurring pain points we see in Tunisian SMEs — and their concrete impact on the business.
No off-the-shelf software covers your process
You bend your business to fit the mould of a generic tool, or you pay a vendor for an adaptation no one else will use.
Legacy applications that slow your business down
FoxPro, Access, unmaintained old PHP apps: everything rests on one person who still masters the system. Risk of a halt if they leave.
Manual workflows that no longer scale
At 10 employees Excel was enough. At 30 or 50, the errors and wasted time become unbearable.
Business systems disconnected from the shop floor
Your machines produce valuable data that stays locked in their controllers instead of flowing up into your management system.
No in-house development team
You can't hire a full-time developer just for a few projects. And you don't want to depend on a freelancer who can disappear.
Our offering
Modern, durable stack
- Python / Node.js backend, Next.js / React frontend
- PostgreSQL databases, Docker deployments
- Automated tests, CI/CD, monitoring
- Source code handed over in full at delivery
Native integration with Lexa ERP
- Read/write to your ERP for a single source of truth
- Shared authentication
- Real-time data synchronisation
Long-term maintenance and evolution
- Maintenance contract after delivery
- Enhancements prioritised with you
- Technical documentation handed over and kept up to date
Why Lexa for custom
Four concrete differences that matter when it's time to choose.
Code that you own
The source code is handed over with no non-compete clause. You can take over, ask another provider to continue, or bring a developer in-house later.
Team in Tunis, on-site visits possible
For industrial projects, our developers go on site to understand your workshop, your machines, your constraints. The code written fits the real conditions.
ERP + AI grounding
Our custom developments benefit from our ERP and AI expertise. When a project must read from or write to a management system, integration is trivial; when a workflow must include an AI step, we know how to deploy it locally.
No overblown promises
We quote honestly, deliver within scope, and flag early the trade-offs that arise during the project. No overbilling at delivery.
Frequently asked questions — custom
The questions managers ask us most often on this topic.
The cost varies enormously with scope. A connector or a simple tool starts at a few thousand dinars; a complete business application, several tens to a few hundred thousand. The practical rule: the free audit leads to a precise, milestone-based quote with clear options. You know exactly what you're paying before you sign.
Let's talk about your custom
Thirty minutes are enough to understand your context and identify the first opportunities. Free audit, no commitment.