Services

Eight service lines.
One CAC certificate.

Every service below is inside our registered scope with the Nigerian Corporate Affairs Commission — not a subcontracted add-on or a partnership arrangement. Each engagement is scoped, quoted and delivered by an in-house principal.

CAC BN 2511781 · Registered 31 May 2017 · All engineering in-house

Technology Consulting Software AI & ML Data Web Mobile UI/UX Hardware Technology Consulting Software AI & ML Data Web Mobile UI/UX Hardware

How we scope

We refuse to quote in the first meeting. Every proposal comes after we have understood your workflow, your constraints and what you need the system to do on a bad day.

Who does the work

The person you meet in the discovery call is the person who writes your code. We do not use subcontractors and we do not outsource to overseas agencies.

What you get

Production-grade systems that run without daily hand-holding. Full source code, deployment access and documentation delivered at handover. We stay available for the life of the system.

All eight lines

Registered scope,
delivered in-house.

Software Development

Custom Django and Python systems built for Nigerian businesses.

We design and build production software that solves real business problems — from custom ERPs and back-office systems to public-facing customer portals. Our own AandA Smart BI platform, built end-to-end in-house, runs 21 integrated modules and 25+ automated workflows in daily production.

Custom internal tools for … Multi-user portals with role-based … Automation systems that replace … API integrations with Flutterwave, … Migration of legacy Excel/paper …

Web Development

Fast, secure, mobile-first websites and web applications.

From marketing sites to complex web applications, we build with the same discipline we bring to internal software: proper testing, HTTPS, mobile-first responsive design, and Nigerian-context features like Naira formatting and Nigerian phone validation baked in.

Corporate marketing websites with … E-commerce and digital payment … Customer portals with self-service … Booking and appointment systems Progressive web apps that …

AI + Machine Learning

Practical AI that solves real problems, not hype.

We deploy machine learning models in production for anomaly detection, forecasting, and business insight. Our own AandA Smart BI platform ships with Isolation-Forest fraud detection, revenue forecasting, and inventory-demand prediction — all built on open tooling that clients can inspect and own.

Fraud and anomaly detection … Revenue and demand forecasting … Automated categorization and tagging … Google Gemini integration for … Custom recommendation systems for …

Data Analysis

Turn scattered business data into decisions you can act on.

We build dashboards, reports, and analytics pipelines that surface the numbers business owners need. Every AandA Smart BI dashboard was built to answer a specific question the CEO was asking — from daily cash reconciliation to monthly P&L and staff KPI review.

Executive dashboards with real-time … Automated daily/weekly/monthly report generation … Data cleanup and warehouse … Cohort, retention, and pipeline … Custom SQL and Python …

Mobile App Development

Native-quality mobile experiences for iOS and Android.

We build mobile apps and Progressive Web Apps that feel fast and work reliably on the network conditions typical of Nigerian users. From bespoke internal tools to customer-facing apps with offline capability, we design for the constraints of the market.

Customer-facing apps with booking, … Field-staff apps for offline … Delivery, logistics and dispatch … PWAs that install without … Native iOS + Android …

UI / UX Design

Interfaces users understand at first glance.

We design digital products the way we run our own business — starting with the user, iterating fast, and treating clarity as a feature. Our design system underpins every AandA product and dashboard, from the shop-floor cashier screen to the CEO's remote command interface.

Product design for web … Design systems and component … Landing page and marketing … Dashboard and admin interface … Design reviews and usability …

Hardware Engineering

Computer, printer and network diagnostics and repair.

Our engineers diagnose and repair desktops, laptops, printers, and small-business network setups. We also source and configure IT equipment for offices setting up from scratch, with a focus on value for money and long-term maintainability.

Desktop and laptop repair, … Office printer and multi-function … Small-office network setup and … IT procurement consulting for … Data recovery from failed …

General Contracts

Bespoke technology contracts and consulting engagements.

Some projects don't fit into a single service line. We take on general technology contracts — mixed scope, phased engagements, and consulting mandates — under the umbrella of our CAC-registered general contracting authority.

Multi-phase digital transformation programmes Technology consulting and advisory … Vendor selection and RFP … Third-party integration and systems … Turnkey delivery of custom …

Download the full capability statement (PDF)

The full stack

Full-stack is thirteen layers.
Not two.

Most agencies stop at Frontend and Backend. Production reality is much wider — and a system that only handles the top two layers doesn’t survive the first Monday of the sixth month. Every AandA engagement handles all of these.

Frontend

Interfaces users understand at first glance. Design systems, responsive layouts, mobile-first.

APIs & Backend Logic

The verbs your business runs on. Django views, REST endpoints, business rules.

Database & Storage

The truth your accountant trusts. PostgreSQL, migrations, hash-chained audit log.

Auth & Permissions

Right people, right access, always. Role-based permissions, 2FA, session management.

Hosting & Deployment

The plumbing behind every URL. Render, WhiteNoise, static asset fingerprinting.

Cloud & Compute

Servers that scale when you need them. Instance sizing, background workers, cron.

CI/CD & Version Control

Every deploy boring, every rollback fast. Git, PR reviews, automated migrations.

Security

HMAC signatures, HTTPS, CSRF, XSS hardening. Every webhook signed, every input validated.

Rate Limiting

Bad actors slowed, real users unbothered. Login throttling, API quotas, abuse detection.

Caching & CDN

Fast pages everywhere. Django cache framework, edge asset delivery, memoization.

Load Balancing & Scaling

Traffic spikes without panic. Horizontal scaling, DB connection pooling.

Monitoring & Logs

Something is wrong? We know before you do. Structured logs, Telegram alerts, error tracking.

Backup & Recovery

The boring stuff auditors love. Daily off-site backups, tested restores, disaster plans.

Handling one or two of these layers is table stakes. Handling all thirteen — across two jurisdictions, in-house, without subcontractors — is the reason AandA still ships production Django after nine years.

Talk to us about your stack

Why clients trust us

Six commitments we never break.

CAC Registered

Since 2017

In-House

Engineering

9+ Years

Operating

24/7 Systems

In production

UK & Nigeria

Incorporated

Zero

Subcontractors

Ayoolumi Oluwafemi Melehon, Founder and Principal Engineer, AandA

A note from the founder

“The measure of the work isn’t the launch. It’s the first Monday of every month, when your team logs in and finds the system still doing the job. That’s the discipline we bring.”

Ayoolumi Oluwafemi Melehon

Founder & Principal Engineer · MSc AI, CompTIA Data+

ayofemimelehon.com

The measure of the work

We don’t sell launches.
We sell Mondays.

The systems we ship stay running. Ask us about our AandA Smart BI platform — 24 modules, 25+ automated workflows, running our own business every day of the year.

See it running

Let’s work together

Have a project
in mind?

Tell us what you need. We come back with a written scope and quote within 48 hours.

Let’s Talk Book a discovery call

Eight service lines. One CAC certificate.

Registered scope, delivered in-house.