Open to opportunities

Tobi Olanrewaju

@tobiolanrewaju

Message

I am an experienced senior software engineer specializing in scalable web systems and data pipelines.

Nigeria

Message

What I'm looking for

I seek senior engineering roles building cloud-native microservices and data pipelines in fintech or e-commerce, with opportunities to lead teams, mentor engineers, and deliver measurable product and performance improvements.

I am a Senior Software Engineer with 15+ years designing and building scalable web applications and distributed systems for high-traffic fintech and e-commerce platforms. I specialize in microservices architecture, cloud-native solutions (AWS/GCP), and performance optimization, and I led a data pipeline optimization that reduced run-time by 80% (5 hrs to 1 hr) for a 5GB daily ingest.

I have deep backend expertise in Java, Python, and Node.js, experience with Kafka and real-time processing, and a strong track record in product collaboration, A/B testing, and mentoring engineering teams. I deliver measurable improvements—such as a 10% lift in AOV through personalization and a 30% reduction in ride wait times—while building resilient, observable systems.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Thrive Market

May 2020 - Present (6 years 1 month)

Designed and implemented customer personalization algorithms, improving average order value by 10% and increasing retention; developed and optimized e-commerce microservices and real-time Kafka-based pipelines for analytics.

PHP Magento Lumen Java Docker MySQL Elasticsearch Redis Kafka AWS

Senior Software Engineer

Ecabs

Feb 2021 - Jan 2022 (11 months)

Developed multi-tenant microservices to enable expansion across multiple European cities and improved dispatch algorithms, reducing ride wait time by 30%; integrated real-time messaging for driver-rider coordination.

Java Spring Boot Quarkus Docker Kubernetes GCP)PostgreSQL Redis Hazelcast RabbitMQ GCP

Senior Software Engineer

Flutterwave

Aug 2019 - Jan 2020 (5 months)

Developed and optimized the Rave payment gateway to enable seamless transactions across Africa and integrated multiple payment providers to expand merchant accessibility.

JavaScript MySQL API Integration Payment Gateways Heroku Backend Development Payments

Senior Software Engineer

Venture Garden Group

Feb 2017 - May 2019 (2 years 3 months)

Led a team of 6 engineers to optimize a waste management platform, increasing revenue by 120% and architected an enterprise single sign-on solution for 100k+ users across 25 applications.

Java Spring Boot .NET Core MySQL CouchDB AWS SSO Team Leadership

Senior Software Engineer

Access Solutions Ltd

Jan 2010 - Jan 2016 (6 years)

Developed a self-service kiosk solution adopted by 4 commercial banks and movie houses. Optimized transaction processing to reduce end-of-day batch execution from over 4 hours to under 1 hour and built a mini-payment switch for 5 microfinance banks.

Java PHP MySQL Payment Processing