Tolulope Olasunkanmi Mumuney
Lagos, Nigeria •-• - • LinkedIn • Medium (Blog) • GitHub
PROFESSIONAL SUMMARY
Award-winning, visionary full-stack web and mobile software developer with over 6 years of experience,
renowned for building high-performing, complex, and scalable applications that serve over 100,000 monthly
requests.
Led milestone project facilitation for top companies, including Google, NQR Payment Solution, and Opera.
Special guest speaker at the MFM Tech Professionals and Business Forum, sharing insights on the Software
Development landscape and inspiring fellow tech professionals and business leaders.
Serving as a software development trainer at DDTech, mentoring and training thousands of students, equipping
them with essential coding skills and industry knowledge.
Successfully managed cross-border teams of 4-10 frontend and backend developers, providing guidance,
mentorship, and strategic decision-making to ensure alignment with the company’s vision.
Experience spans from early-stage startups to established industry leaders.
Keen interest in Artificial Intelligence and Machine Learning. Currently deepening my knowledge and skills in AIdriven solutions. Eager to contribute to innovative projects and enhance user experience.
TECHNICAL SKILLS
Programming Languages: JavaScript, TypeScript, HTML5/CSS
Libraries and Frameworks: React, React Native, Expo, NestJS, Next.js, GraphQL, Node.JS, Express, Socket.io
Databases: MongoDB (Mongoose) (NoSQL), Amazon Aurora, PostgreSQL, MySQL (Sequelize)
Cloud and Deployment: AWS, Heroku, Bitrise, Google Cloud Run, App Store Connect, Google Play Console
Development Tools and Practices: Git & GitHub, Postman, Compass, Docker, NX Monorepos
Project Management: Confluence, JIRA, Azure DevOps, Microsoft Teams, Google Workspace
PROFESSIONAL EXPERIENCE
CrusaderSterling Pensions Limited
Lagos, Nigeria
Senior Software Engineer
Nov 2024 – Present
A leading PFA in Nigeria, with a rating of “A” by Agusto & Co. Spearheaded the innovative development of a cutting-edge
AI WhatsApp chatbot, utilizing the WhatsApp Cloud API, Node.js, MongoDB, and Dialogflow. This breakthrough project
revolutionized customer interaction, offering seamless, real-time access to services comparable to the company's
website and mobile app.
Leveraged Dialogflow's natural language understanding capabilities to create intelligent, context-aware
interactions that mimic human conversation.
Enabled the chatbot to autonomously retrieve user-specific data, including pension balances and account
statements, and facilitate new pension account signups via the new WhatsApp interactive flow forms.
Implemented state-of-the-art security protocols to guarantee data privacy and integrity, safeguarding user
information, leveraging also on WhatsApp end-to-end encryption.
Provided thorough documentation and hands-on training to empower the team in managing and utilizing the
chatbot effectively.
Direct Digital Sales Agent (DDSA LIVE)
Lagos, Nigeria
Head of Technology & Lead Software Engineer
July 2024 – Present
Built an Agent Network System (ANS) to streamline transactions, account opening, card issuance, and more for Nigerian
banks, including other financial institutions across over 20 sectors. Currently scaling to accommodate more sectors.
Spearheaded the development and deployment in less than 4 months, exceeding industry standards.
Led a cross-functional team, collaborating with banks, insurance companies, and other stakeholders to ensure
alignment and seamless integration.
Fostered strong relationships with financial institutions, facilitating quicker project approvals and reducing
bottlenecks.
Estility
Lagos, Nigeria
Lead Software Engineer
April 2023 – July 2024
Launched the Lagos office and recruited a new team of 4 developers. Grew company revenue by 200% in the first nine
months (representing 20% of company revenue). Recognized with an award of excellence for outstanding performance
and significant organizational impact.
Established robust CI/CD pipelines for AWS, Heroku, Netlify, and Hostinger that transformed the deployment
workflow and a consequent 98% success rate.
Directed technical collaborations with third parties for bill payment integration.
Wrote a JavaScript/TypeScript algorithm to automate API integration for estates and vendors, accelerating the
onboarding process by 30%.
Scaled and maintained server and database architecture to efficiently handle thousands of monthly requests,
significantly reducing latency and cutting costs.
Deployed and published updates for E-Residents (Android & iOS), Estility Riders (Android), and Estility Web
Dashboards using effective app versioning and Expo cloud updates with a 98% success rate.
Effectively communicated technical features and logic to non-technical stakeholders while clearly conveying
technical specifications to the development team.
Developed comprehensive API documentation using Postman, significantly improving collaboration between
frontend and backend teams and achieving a 95% on-time feature delivery rate.
iKooK
London, United Kingdom
Lead Software Engineer
February 2023 – October 2023
Recruited to eliminate development bottlenecks within the iKooK ecosystem, successfully transitioning the company
from development to production in just three months. This rapid progress led to securing Series A startup funding
shortly thereafter.
Re-developed the Node.js API within the first month, improving security by 35% and significantly reducing
latency.
Integrated AI-driven analytics tools to provide real-time insights and predictive analytics.
Collaborated with testers to implement unit testing and debugging processes, reducing production software
bugs by 20%.
Mentored and trained the development team, increasing their productivity and development standards,
leading to more efficient collaboration.
Created 3 web applications, including a customized dashboard with real-time chat and calendar features,
significantly enhancing productivity for users.
D-Degree Digital Hub
Lagos, Nigeria
Lead Software Engineer
January 2021 – February 2023
Established product strategies with the CEO and product manager. Led the development of the DDLoans and DDReviews
products, contributing to the company’s rise as one of the leading tech firms in Nigeria today.
Led a team and coordinated with five business partners to complete three projects for NQR, Opera, and Google.
Demonstrated high-level performance and technical expertise, resulting in a quick promotion to a lead role
within the first year.
Trained and mentored the development team as it grew to 10 employees.
Created the DDPortal web application, a comprehensive Collaboration and Applications Management Software,
eliminating the need for third-party software and reducing running costs by 30%.
Analyzed and pioneered new technology trends, positioning the company as the top tech firm for SMEs in
Nigeria.
EDUCATION
Ladoke Akintola University of Technology
Bachelor of Science
January 2010 – January 2015
Awarded top of class in 400 level and 500 level.
Received a certificate of honor during the National Youth Service Corps (NYSC) for transformative innovations
during the service year.
PROFESSIONAL CERTIFICATIONS
Computer Professionals of Nigeria (AFCPN) - Computer Professionals Registration Council of Nigeria (010153).
Physical Computing - Lancaster University and Institute of Coding, United Kingdom.
The Complete JavaScript - Udemy, California, U.S.
Google Digital Skills for Africa - Google.
User Experience - UX, Accenture, Dublin, Ireland.
Complete React Native, Zero To Mastery Academy, Toronto, Canada.
LANGUAGES
English - Native
French - Basic
OTHER RELEVANT SKILLS
Machine Learning: Developing AI models to predict user behavior, increasing engagement by 15%.
NPM Package Publishing: Capable of developing and publishing npm packages, ensuring reusable and
maintainable code for the developer community.
API Testing and Documentation: Skilled in API testing and creating detailed documentation using Postman.
Creativity & Visual Design: High creativity with a keen eye for exceptional designs.
WordPress Development: Proficient in developing and customizing websites using WordPress, including theme
and plugin development, and optimizing site performance.
CODING PROJECTS OVERVIEW
E-Residents (Android Store and iOS Store)
Built with React Native, the E-resident has features you would expect from a modern mobile application like visitor's
code generation, real-time tracking of riders and order status upon orders, seamless payment gateway, smart
navigations, etc. It is powered by the Node.js express backend application and socket.io for real-time communication. I
led the development team in the creation of this application at Estility, including a Rider Mobile Application for
deliveries of orders coming from the E-Residents application.
Stack: TypeScript, React Native, Expo, Node.js (Express), Mongo DB, Mongoose, Express, Brevo, AWS, Socket.io.
Direct Digital Sales Agent (DDSA Web Dashboard)
For its dashboard, we used an API-powered React TypeScript frontend, enabling real-time communication and
transactions with Socket.io, and integrated advanced data analytics using the Nivo library for dynamic graphs and tables
within the dashboard. The backend was built with a microservice architecture, leveraging Node.js (Express) with full
TypeScript typing for the main API, an API Gateway for authentication, and Event Brokers for service routing. The
application was deployed on Google Cloud Run using Docker containers, ensuring scalable and efficient deployment. We
managed a NoSQL MongoDB database with a Master-Slave architecture for enhanced scalability. Robust security
measures were established, including AES encryption, Cloud Firewall, and Cloud IDS.
Stack: TypeScript, React, Socket.io, Nivo library, Node.js (Express), NestJS, AWS S3, Google Cloud Run, Docker containers,
Brevo.
Zone - The Social Media Platform
I consider the Zone web app one of my best personal projects. Created with the concept of Twitter in mind, I developed
the entire project in 7 days! All features of a typical social media platform have been implemented, including re-posting,
liking, following, blocking, unfollowing, and more. The platform has a fully functional chat app built with it, developed to
have real-time messaging and push notifications with WebSocket. I also had to create two separate backend
applications for this software, one with a Node JS Express App and the other with a Socket.io App. Static files are being
stored in an AWS S3 Bucket.
Test Logins: username: dev, password: dev.
Stack: JavaScript, Node JS, Mongo DB, Socket.io, Mongoose, Express, AWS s3 Bucket, HTML, CSS. Backend Node API
hosted on Heroku.
Mapexx
A smart web application, integrated with a worldwide map, the Mapexx application allows users to log their daily
workout by distance covered, location, etc., and renders these workouts in a workout space and directly on a Live Map
for record purposes.
The worldwide map is rendered using the Leaflet library
The application automatically integrates with users’ local storage to store all workouts
Live Map and Mark Up enabled
Stack: JavaScript, Leaflet Library and API, Node Package Manager, JS Inbuilt Geolocation API, Caching, AJAX, GIT,
HTML/CSS, Parcel. App fully programmed with the JS OOP Paradigm.
Recipees
Of all my coding/programming projects, I developed the Recipees web app to showcase my UI/UX skills. This app
lets users search for any recipe by name and then returns a list of matching recipe names from a Database. I preferred
Procedural Programming for this one.
Supports a recipe bookmark feature. Save your favorite recipes for later.
The shopping list feature allows users to store any ingredient they would like to shop for later. Like a Mini
Notepad in the App.
Switch Ingredient instructions per servings feature.
Stack: JavaScript, Fortify API, Node Package Manager, Node.js, Restcountries API, Caching, AJAX, HTML/CSS, MongoDB,
Barbel, Parcel, Node.js.
