I build whatever you can imagine.
I build solutions that make your business more productive and bring your whole team together. Cutting out repetitive tasks and promoting real productivity, so people get to focus on what they're actually good at.
About
CEO, Large TechnologiesI am Evans Ademilua, a software builder and the CEO of Large Technologies, the development intelligence, in Lagos. I spend my time doing one thing well: taking a business that is stuck running on spreadsheets, WhatsApp groups and manual follow-ups, and replacing that mess with a piece of software that actually fits how the business works.
I build with real code, no-code tools and AI-assisted "vibe coding," whichever gets you there fastest. Code is usually where I land though, it gives a system room to grow past its first version instead of hitting a wall the moment you need something a template does not support.
I work across multiple industries, real estate, hospitality, healthcare, events, education and beyond. The businesses I work best with all share one thing: the bottleneck is never a lack of effort, it's a lack of systems. I build the system.
What I build
Scope, 01 to 06Booking and scheduling apps
A client facing booking flow with confirmations and reminders, for clinics, salons, tours, restaurants and service calls.
Lead and deal trackers
Replaces the spreadsheet a real estate or sales team shares over WhatsApp, with one live view of every lead and its status.
Internal tools and dashboards
Purpose built screens for your team's actual workflow, inventory, jobs, approvals, instead of a bloated off the shelf tool.
Workflow automation
Connects the tools you already use, forms, WhatsApp, email, sheets, so data moves without anyone retyping it.
Client portals
A private, branded space for your clients to see status, documents or progress, instead of a scattered email thread.
AI powered features
A focused AI feature bolted onto a real workflow, drafting, summarizing, sorting, not a chatbot for its own sake.
How a project runs
Sequence-
01
Day 1
Scope call or a detailed breakdown
Either works: hop on a short call, or send a detailed breakdown of what your project is about. Whichever gets me the full picture fastest.
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02
Day 2 to 3
Proposal
I come back with a proposal: exactly what it costs and exactly how the project will go, no hourly surprises.
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03
Week 1 to 3
Build
Working software, not mockups. An average build takes two to three weeks. If a build runs longer, it's usually because we're waiting on verification from a third-party API or platform, not because the work stalled.
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04
Week 3
Handover
A walkthrough call, a handover document, and a set window of free fixes after launch.
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05
After launch
Leave a review
Once you've used it for a bit, leave a review of your experience. It shows up right here on the site for the next person deciding whether to work with me.
Recent builds
Live projectsSystems shipped and running today. These are the only projects I can show publicly, most client work is under NDA. Click through to see any of them live.
CareTRAC
Built for Erik at Care General Construction: contractors log site progress and photos, homeowners track milestones and message their contractor, all from one secure portal. FastAPI backend with a dedicated scheduler service, React frontend.
Billionaire Club
A digital business ecosystem where members learn real skills, earn from what they learn, and grow into leaders who train the next member.
Sky Team Ife
Built for the Sky Team organization: attendance, weekly reports, office rankings and center analytics for a multi-location team, backed by Supabase with full row-level security.
Chill Wireless
Built for Jake Hassan: a wireless carrier's storefront for browsing and buying unlimited premium plans on the nationwide 5G network.
Common Ground Engineering
A one-page site for an electrical consulting firm with Telegram and Cal.com wired straight into the booking flow, no manual back-and-forth.
What clients say
Real feedbackVerified feedback from Upwork, where most of my early client work has happened.
"I hired Evans to help with some tricky issues on my Bubble app, and he delivered beyond expectations. He quickly understood the problems, communicated clearly, and implemented clean, effective fixes that improved the app's performance and user experience. Highly recommend!"
"Evans did an outstanding job on my n8n automation. He quickly understood my needs, communicated clearly, and delivered a flawless solution that exceeded expectations. Highly recommend for any automation work!"
"Working with Olufemi was a great experience! He communicates very well, understood all my requirements for my Bubble.io AI app and fixed all the errors immediately and implemented them to my complete satisfaction. I will 100% hire him again."
"Working with Olufemi has been a remarkable experience. He combines solid technical skills in automation, AI building and API integration with a clear understanding of real-world business needs. His ability to merge design and functionality makes him a top-tier developer I'd recommend to any forward-thinking team."