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Tolu Adedeji

@toluadedeji

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I build scalable fintech applications, modernize systems, and lead full-stack engineering teams.

Nigeria

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What I'm looking for

I'm looking to build scalable, high-impact software with collaborative teams, solve complex product problems, mentor engineers, and contribute to open-source communities.

I've led full-stack engineering at EasyPay and NextPayDay, modernizing monoliths into microservices, building billing products from scratch, and protecting financial workflows from duplicate transactions. I also set up CI/CD, scalable deployments, role-based access control, encryption, caching, and database optimization.

Previously, I built interactive React network charts and search experiences at Expectoo, automated loan processing at Quiwer, and a real-time raffle application and learning management system at Softicu. I enjoy open-source collaboration, mentoring engineers, and turning complex product requirements into reliable software.

Experience

Work history, roles, and key accomplishments

Current

Senior Fullstack Software Engineer (Team Lead)

Current

EASYPAY (FIN-TECH)

Jan 2024 - Present (2 years 8 months)

Streamlined deployment workflows using GitHub and Git for CI/CD pipelines, and configured NGINX and Apache servers. Re-architected a monolithic application into a scalable microservices architecture and implemented a locking mechanism to prevent duplicate transactions.

Git GitHub CI CD Nginx Apache Microservices Code Review Sprint Planning

Current

Volunteer Software Administrator

Current

Stop the Abuse Foundation

Jun 2019 - Present (7 years 3 months)

Maintained and troubleshot software systems, provided user support, managed databases, and ensured security measures. Documented processes and managed backup and recovery processes.

Software Maintenance Troubleshooting Database Management Security Backup And Recovery

Senior Front-End Engineer

Expectoo (Evolute, Germany)

Mar 2023 - Dec 2023 (9 months)

Increased user experience by implementing new UI and functionality, and designed interactive node-graph network charts using React.js. Developed a lightweight front-end framework with vanilla JavaScript and wrote unit and integration tests using Jest and Vitest.

React JavaScript Jest Vitest UI UX Node Testing

Senior Fullstack Software Engineer (Team Lead)

NEXTPAYDAY (FIN-TECH)

Jan 2022 - Feb 2023 (1 year 1 month)

Configured VPS environments and integrated Git/GitHub CI/CD pipelines for deployment. Independently developed a billing application from concept to completion, and enhanced infrastructure security with RBAC, data encryption, and automated vulnerability scanning.

VPS Git GitHub CI CD RBAC Data Encryption Laravel Redis Laravel Scout Event Based Messaging

Fullstack Software Engineer

QUIWER (FIN-TECH)

Mar 2021 - Dec 2021 (9 months)

Developed an automated loan processing system by integrating third-party payment solutions and webhooks for real-time data synchronization. Created data visualizations for financial data and implemented new features based on UX designs.

Payment Integration Webhooks Data Visualization Cron UX Design

Fullstack Software Engineer / Instructor

SOFTICU

Jan 2020 - Feb 2021 (1 year 1 month)

Engineered a real-time raffle application using Node.js, Vue.js, Laravel, and WebSockets. Mentored student web developers and developed a learning management software to streamline course and lecturer management.

NodeJS Vue.Js Laravel WebSockets Mentorship Learning Management