Summary
Olajuwon L. is a seasoned Senior Software Engineer with 6+ years delivering scalable, high-availability systems across finance, telecom, and social commerce, excelling in distributed systems, microservices, REST APIs, event-driven architectures, payments integration, system design, CI/CD, DevOps, Agile leadership, mentoring, and clean code/design patterns; he is proficient in Java, Node.js, TypeScript, JavaScript, Spring Boot, Vert.x, NestJS, ReactJS, React, React Native, React/Redux, Laravel, Kotlin, WordPress, and developer relations, with cloud and DevOps expertise spanning AWS, Kubernetes, Docker, GitHub Actions, GitLab CI/CD, Jira, Notion, Trello, and Git; his data and messaging toolkit includes PostgreSQL (Postgres), MySQL, MongoDB, Redis, Elasticsearch, InfluxDB, RabbitMQ, Kafka, and ORMs such as Sequelize and TypeORM; he also brings real-time communications experience with WebRTC, Mediasoup, CodePush, Twilio, Meta WhatsApp API, and Paystack Inline JS; notable impact includes architecting fault-tolerant, high-throughput microservices, integrating enterprise search, building card processing infrastructure, optimizing data pipelines, and leading deployments that cut release time by 70%, with contributions at Vendy (YC W22), TM30 Global, PMGLOBAL Technologies, CollabNow, Broadview Properties, and current developer relations at Paystack—making him highly recommended for senior backend, platform, or developer relations roles focused on reliability and scale.
Meet Olajuwon L.
Assessment Scores
Perfect score on Find the Length of the Longest Substring Without Repeating Characters, Diffculty Easy
Great score on Implement an LRU Cache Algorithm, Diffculty Medium
Great score on Real-Time Dashboard in React, Diffculty Medium
Great score on Discuss the Advantages of Context API vs. Redux in React, Diffculty Medium
Perfect score on Fix Bugs in Node.js BMI Calculator, Diffculty Easy
Perfect score on Fix Bugs in Node.js Temperature Conversion API, Diffculty Medium
Great score on Implement a Task Tracker in React, Diffculty Easy
Great score on Develop a React.js Quiz Game Application, Diffculty Medium
Experience
Vendy (YC W22)
Senior Software Engineer
Full-Time
May 2024 — Present
Leading backend service development powering customer-facing and internal tools.
Implemented fault-tolerant microservices with Java, Vert.x, and Node.js for order management, metrics tracking (InfluxDB), and real-time data.
Designed scalable data pipelines and optimized queries for high throughput and low-latency data access.
Collaborated cross-functionally with product and customer support teams to reduce resolution time by 40%.
Technologies:
Java
Vert.x
Node.js
MySQL
Sequelize
InfluxDB
Docker
Kubernetes
AWS
kafka
Meta Whatsapp api
TM30 Global Ltd
Senior Backend Engineer
Full-Time
Jun 2023 — Apr 2024
Architected and maintained backend systems for banking and telecom clients.
Championed CI/CD implementation using GitLab, Kubernetes, and Docker, reducing deployment times by 70%.
Mentored junior developers and guided onboarding processes.
Integrated Elasticsearch to power enterprise search capabilities across APIs.
Lead a team to develop card processing infrastructures
Technologies:
Java (Spring Boot)
Node.js
TypeScript
ReactJS
Elasticsearch
PostgreSQL
kubernetes
docker
rabbitmq
postgres
mysql
trello
PMGLOBAL Technologies
Software Engineer
Full-Time
Jan 2023 — May 2023
Developed high-performing backend services and APIs for client projects using Java and Node.js.
Delivered cross-platform mobile apps using React Native and web apps in React/Redux.
Led intern onboarding and training programs.
Technologies:
Java
Node.js
React Native
React/Redux
CollabNow Inc
Fullstack Engineer
Full-Time
Apr 2022 — Dec 2022
Built and optimized real-time communication systems using WebRTC and Mediasoup.
Delivered production-grade mobile and web apps with continuous delivery pipelines (CodePush).
Technologies:
WebRTC
Mediasoup
TM30 Global
Fullstack Developer
Full-Time
Feb 2021 — Mar 2022
Developed a WhatsApp-based fintech bot using Java and Twilio, processing real-time transactions.
Implemented RabbitMQ and Redis for async communication and caching.
Spearheaded backend development for savings apps (Adashi, EduSponsor) and supported Laravel/React integrations.
Technologies:
Java
Twilio
RabbitMQ
Redis
Laravel
React
Broadview Properties Ltd
Fullstack Developer
Full-Time
Jan 2020 — Dec 2020
Built and deployed a property listing platform from scratch.
Owned backend services (Spring Boot) and frontend development (ReactJS).
Technologies:
Spring Boot
ReactJS
mysql
elastic search
Paystack
Developer Relations
Full-Time
Feb 2025 — Present
Supporting developer community engagement and technical advocacy for Paystack's payment infrastructure.
Building relationships with developers and creating technical content to drive API adoption.
Technologies:
react
java
kotlin
nodejs
wordpress
paystack inline js
Projects
Braqqet.co
Developed scalable Node.js backend with Redis, MongoDB, and Elasticsearch.
Concher.app
Designed event booking backend with NestJS, PostgreSQL (TypeORM), Redis, and Docker.
A bills payment platform, where you can pay for your daily utilities like light, insurance, data, airtime etc. you can also track your expenses.
Education
B.Sc. Information & Communication Technology
2010 - 2014
Crawford University, Nigeria
Nigeria
Google Africa Developer Scholarship (Android Track)
2020 - 2020
Pluralsight
Lagos, nigeria
ALX Africa Software Engineering Program
2021 - 2021
August Cohort 2021
Lagos, Nigeria
Java J2EE Training
2011 - 2011
New Horizons
Ikeja, Lagos, Nigeria
Full Stack Engineer
Available — No Current Full-Time Commitment
/Mo
/Hr
Member since October 6, 2025
5
Projects CompletedSkills & Expertise
Java
NodeJS
React
Kubernetes
MongoDB
Kafka
WordPress
SQL
PHP
CSS
HTML
Python
AWS
React Native
Typescript
Javascript
Git
Database:Relational
Database:Cacheing
Laravel
Developer Level
Senior
4+ YOEOlajuwon L. is senior Level Developer