Nexum

AC Nexum

We design, build and maintain custom applications, websites and tools for companies that want less friction and clearer day-to-day operations.

Selected work

Concrete engagements that show how we scope, build and deliver — across product, project and engineering.

View all work
01RISF

Telecom systems standardization

Product Owner

Supported technical teams in a telecom systems standardization program. Backlog ownership, user stories, agile ceremonies and business–technical coordination.

  • Product Ownership
  • Scrum
  • Jira
  • Spring Boot
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02BLH Recouvrement

Debt collection management application

IT Project Manager

Led a business collection application from scoping to go-live. Business/delivery coordination, schedule tracking, risk management and UAT supervision.

  • Project management
  • Business / delivery
  • UAT
  • Reporting
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03ATOZ Services Luxembourg

Document OCR solution on AWS

Full-Stack Developer

Built an extraction and automatic classification solution for documents, integrated into a document management system.

  • Python
  • AWS Textract
  • S3
  • OCR
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From business need to production

AC Nexum supports each project in a structured way — from understanding the need through to following the solution in production.

  1. 01

    Understand

    Understand the context, users, constraints and business goals.

  2. 02

    Scope

    Define scope, priorities, deliverables and the right technical approach.

  3. 03

    Build and follow

    Design, develop, test, deliver and support the solution as it evolves.

Experience at the interface of business and technology

  • 3 complementary experiences

    Product, project and development

  • From design to production

    Scoping, building, testing and support

  • Varied environments

    Telecom, collections and document management

  • Dual skill set

    Functional leadership and technical understanding

Ayoub Chellabi, founder of AC Nexum

AC Nexum

Behind AC Nexum

A dual culture of product, project and engineering

AC Nexum is led by Ayoub Chellabi, Product Owner and IT Project Manager with dual expertise in product management and software development.

His background bridges business needs, technical constraints and operational delivery of digital solutions.

He works especially on functional scoping, project leadership, agile methods, technical team coordination and support through go-live.

  • Product Owner
  • IT Project Manager
  • Software development
  • Project management
  • Agile methods
  • Master’s in MIAGE
  • Computer Science Engineering degree

Who it’s for

We step in where technology must serve the work — without empty jargon or overbuilt systems.

Growing SMEs

You’ve outgrown spreadsheets and patched tools. You need an application or site that can carry daily operations.

Business teams without an IT dept

You own the operational need and want a partner who scopes, builds and stays reachable.

Organizations modernizing

You inherited a fragile tool or a slow site. We clarify, stabilize and evolve — without breaking everything.

What you gain

No empty promises — concrete gains we aim for on every engagement.

01

Project visibility

Clear scoping, shared priorities, understandable deliverables — you always know where things stand.

02

Less technical debt

Lean architectures, maintainable code, choices justified by your context.

03

Controlled timelines

Short iterations, held scope, fast trade-offs — not ghost roadmaps.

04

Lasting autonomy

Useful documentation and solutions your teams can run after delivery.

Why AC Nexum

A digital studio: proximity, pragmatism and technical rigor — without unnecessary management layers.

Truly tailored

Every project starts from your context, constraints and goals — not a recycled template.

Pragmatism

Simple, effective solutions that are realistic to ship. We cut the noise.

Single point of contact

A direct contact to speed up exchanges and keep the project thread.

Code quality

Structured, maintainable code built to last — not to impress a demo.

Business + technical view

We connect your business stakes to the most relevant technical choices.

End-to-end support

From design to maintenance, we stay with you at every step.

How we work

A short, readable process — from understanding the need to support in production.

  1. 01

    Understand

    Need, context, priorities, constraints — without rushing the stack.

  2. 02

    Design

    Solution, experience and architecture aligned with the outcome.

  3. 03

    Build

    Iterative delivery, careful quality, regular feedback.

  4. 04

    Support

    Go-live, maintenance and evolution at the pace of the business.

Technology that serves the field.

AC Nexum builds useful digital solutions: applications, sites and systems shaped around real processes. Direct approach, careful deliverables, long-term trust.

About AC Nexum →
Modern open office with floor-to-ceiling windows and workstations

What guides our choices

  • Business understanding
  • Technical expertise
  • Useful simplicity
  • Evolvability
  • Long-term follow-up

A project to scope, modernize or build?

Let’s discuss your context, needs and constraints to identify the most relevant next step.