TM_PORTFOLIO
v2026
Available for senior & lead engineering roles

Engineering
systems that
scale quietly.

Hi, I'm Tolulope Mumuney — a senior full-stack engineer in Lagos building AI, FinTech, and consumer products that serve 100k+ monthly requests. Six years of shipping for Google, Opera, NQR Payment Solution, banks, and pre-Series-A startups.

Currently Lead SE @ Breezelearn (AI)
Also Senior SE @ Abbey Mortgage Bank
Based in Lagos, Nigeria · Remote-friendly
Stack TS · React · Node · AWS · LLMs
SCROLL
By the numbers

Six years. Real outcomes.

Numbers from production systems I've led across banking, mobility, social, and AI products — not side-quest demos.

6+
Years shipping
100k+
Monthly requests
200%
Revenue growth (Estility)
10
Engineers led
About

A builder, a mentor,
a quiet operator.

I lead engineering at Breezelearn on Paulo AI — a voice-first well-being assistant built on Azure OpenAI Realtime API and WebRTC, with sentiment analysis and function-calling that turns conversations into real actions. In parallel, I run banking modernization at Abbey Mortgage Bank and head technology at DDSA LIVE, an agent network system serving Nigerian banks across 20+ sectors.

Before that I rebuilt iKooK's Node API in a month to clear the path to Series A, launched the Lagos office at Estility (200% revenue growth, award of excellence), and led a 10-person team at D-Degree on projects for Google, NQR, and Opera.

I also teach. As a software development trainer at DDTech, I've mentored thousands of students, and I've been a guest speaker at MFM Tech Professionals & Business Forum. The thing I love most is taking something foggy — a half-spec, a stalled team, a 4-month deadline — and shipping it.

Selected work

Where I've shipped.

From two-person product calls to multi-team cross-border delivery. Hover a row.

Sep 2025 → Now

Breezelearn

Lead Software Engineer · AI Voice & Insights
Canada · Remote
Building Paulo AI, a voice-first well-being assistant. Azure OpenAI Realtime API over WebRTC for low-latency speech-in/speech-out sessions with sentiment analysis and function-calling. Multi-source check-in engine turning moods, drivers, and notes into measurable energy trends. KMS-encrypted, role-based, anonymised team aggregates for managers.
Jul 2025 → Now

Abbey Mortgage Bank

Senior Software Engineer
Lagos, Nigeria · One of Nigeria's leading PMIs
Modernising and automating core banking. Built procurement automation that lifted speed and efficiency by 60%. Introduced AI-driven automation to IT workflows for a 70% productivity bump. Designed cron jobs inside the Eazybank AX core banking system, improving reliability by 7%.
Jul 2024 → Now

DDSA LIVE

Head of Technology & Lead Engineer
Lagos, Nigeria · Agent Network System
Built an Agent Network System (ANS) for transactions, account opening, and card issuance across Nigerian banks and 20+ adjacent sectors. Shipped from zero to production in under 4 months. Led a cross-functional team across banks, insurers, and partners — and built the relationships that unblocked approvals.
Nov 2024 → Jul 2025

CrusaderSterling Pensions

Senior Software Engineer
Lagos, Nigeria · 'A'-rated PFA
Designed and built an AI WhatsApp chatbot on WhatsApp Cloud API + Dialogflow + Node.js + MongoDB. Customers can check pension balances, pull statements, and sign up via WhatsApp interactive flow forms — full parity with the company website and app. End-to-end encryption and rigorous handover docs.
Apr 2023 → Jul 2024

Estility

Lead Software Engineer
Lagos, Nigeria
Launched the Lagos office, hired 4 engineers, and grew company revenue 200% in nine months — won the company Award of Excellence. Built CI/CD across AWS, Heroku, Netlify, and Hostinger with 98% success. Wrote a TS algorithm to auto-onboard estates and vendors (30% faster). Shipped E-Residents (iOS/Android), Estility Riders, and the Web Dashboards.
Feb 2023 → Oct 2023

iKooK

Lead Software Engineer
London, United Kingdom
Took iKooK from development to production in 3 months, clearing the bottleneck that unlocked Series A. Re-wrote the Node.js API in the first month (+35% security, lower latency). Integrated AI-driven analytics. Mentored the team and cut production bugs by 20%.
Jan 2021 → Feb 2023

D-Degree Digital Hub

Lead Software Engineer
Lagos, Nigeria
Promoted to lead within a year. Led a team of 10 on three projects for Google, NQR, and Opera. Built DDPortal — collaboration & application management software that cut third-party tooling and saved 30% in running costs. Trained the team that grew the company into one of the top SME tech firms in Nigeria.
The toolbox

What I actually use.

No buzzword soup. Every tool below has shipped to production under my hands.

// 01

Languages

  • TypeScript
  • JavaScript
  • Python
  • HTML5
  • CSS3
// 02

Frameworks

  • React
  • Next.js
  • React Native
  • Expo
  • Vue.js
  • Node.js
  • Express
  • NestJS
  • FastAPI
  • GraphQL
  • Socket.io
  • Tailwind CSS
// 03

AI & ML

  • Azure OpenAI
  • GPT
  • Embeddings
  • Fine-tuning
  • Function calling
  • WebRTC realtime
  • Dialogflow
  • Prompt engineering
// 04

Data & Cloud

  • PostgreSQL
  • MongoDB
  • MySQL
  • Amazon Aurora
  • Firebase
  • AWS
  • Google Cloud Run
  • Docker
  • NX Monorepos
  • GitHub Actions
  • Netlify
  • Heroku
Hands-on builds

Things I've built.

A small sample. Personal and lead-engineering work side by side.

Mobile · iOS & Android
RIDE LIVE

E-Residents · Estility

Visitor code generation, real-time rider tracking, payment gateway, smart routing. I led the team on E-Residents plus the Riders mobile app for delivery flow.

React NativeExpoNode.jsMongoDBSocket.ioAWS
Web · FinTech Dashboard
VOL +18.4%

DDSA Web Dashboard

API-powered React TS dashboard with Socket.io realtime, Nivo analytics, and a microservices backend (Node + NestJS) behind an API Gateway and event brokers — running on Google Cloud Run with AES, Cloud Firewall, and IDS.

ReactTypeScriptNestJSDockerGCRMongoDB
Personal · 7-day sprint
● LIVE

Zone · Social Platform

Twitter-style social platform shipped solo in 7 days. Follow, post, like, repost, block, plus a fully realtime chat app with WebSocket push and AWS S3 media. Two backends — an Express API and a Socket.io app.

Node.jsSocket.ioMongoDBAWS S3Express
Web · Geo & maps
workouts.live

Mapexx · Workout Tracker

Log workouts with distance, location, and notes; render them live on a Leaflet world map. Auto-saves to local storage and marks each session geographically for a long-term running record.

JavaScriptLeafletOOPLocalStorage
Receipts

Certified, credentialed, multilingual.

Certifications

AWS Cloud PractitionerAmazon Web Services
Computer Professionals of Nigeria (AFCPN)CPN · 010153
Physical ComputingLancaster University · IoC, UK
Complete React NativeZero To Mastery · Toronto
The Complete JavaScriptUdemy · California
User Experience (UX)Accenture · Dublin
Google Digital Skills for AfricaGoogle

Languages & education

EnglishNative
FrenchConversational

Education

B.Sc · Ladoke Akintola University of Technology2010 → 2015
Top of class in 400 & 500 level. NYSC Certificate of Honor for transformative service-year innovations.
~ /tolulope · zsh
$ whoami
tolulope — senior full-stack, AI + fintech
building Paulo AI @ Breezelearn · banking @ Abbey · agent network @ DDSA
$ cat now.txt
Let's talk

Got something hard
to build?

I take on senior, lead, and head-of-engineering roles where the work is interesting — AI products, fintech rails, scaling teams, or pre-production codebases that need a steady hand to ship.

mumuneytolulope@gmail.com →
LinkedIn GitHub Medium +234 803 7184 297