LAWAL OLUWATIMILEYIN

Seasoned Full-Stack Engineer
Ibadan, NG.

About

Seasoned Full-Stack Engineer with over a decade of experience in designing and delivering high-performance, scalable web applications and microservices across diverse sectors including fintech and healthcare. Proven for architecting payment and data-driven systems using modern cloud-native technologies, leading cross-functional teams, and mentoring engineers to uphold best practices. Eager to leverage deep expertise in backend platforms, distributed systems, and API-first design to drive innovation at Nium.

Work

Vouchmark
|

Technical Lead (Contract)

Remote, USA, US

Summary

Delivered a Minimum Viable Product (MVP) for a company-scoring and verification platform, optimizing performance for sub-second response times.

Highlights

Delivered MVP for a company-scoring and verification platform using Firebase, Node.js, and Bootstrap.

Implemented robust authentication, data validation, and secure storage layers, optimizing Firestore queries for sub-second response times.

Conducted comprehensive architecture reviews and recommended integrations with third-party KYC and payment gateways to enhance platform functionality and security.

Rapha Al
|

Technical Lead

Ibadan, Oyo State, Nigeria

Summary

Built an AI-driven obstetric ultrasound analysis platform, accelerating report generation and providing actionable insights through robust data services.

Highlights

Built an AI-driven obstetric ultrasound analysis platform, accelerating report generation by 5x via LLM/NLP pipelines.

Developed end-to-end data extraction services for ingesting ultrasound scan sessions, normalizing DICOM metadata, and exposing insights through REST APIs.

Integrated Dockerized microservices into CI/CD workflows, ensuring seamless deployment and operational efficiency.

Collaborated closely with radiologists to iterate on feature sets, ensuring the platform met critical clinical requirements and user needs.

Koppoh
|

Lead Developer

Ibadan, Oyo State, Nigeria

Summary

Led the architecture and development of a microservices suite, significantly enhancing platform reliability and enabling substantial revenue growth.

Highlights

Architected and developed a suite of Node.js microservices, increasing platform reliability and enabling a 50x revenue uplift.

Designed and implemented RESTful APIs backed by MySQL, incorporating advanced query optimization and indexing strategies to boost performance.

Containerized services with Docker and deployed on Kubernetes clusters, implementing automated deployments and rolling updates to streamline operations.

Established a comprehensive frontend hiring process and successfully onboarded and mentored 5 junior/mid-level engineers in React and Vue.js best practices.

Exousia
|

Senior Developer

Lagos, Lagos State, Nigeria

Summary

Engineered a no-code platform to enable solar companies to assess creditworthiness and efficiently manage payments.

Highlights

Engineered a no-code platform enabling solar companies to assess creditworthiness and manage payments.

Integrated key APIs including Mono, Seerbit, and Indicina, enhancing platform capabilities and data access.

Delivered sandbox and test modes for rapid rollout to pilot customers, ensuring smooth adoption and validation of the platform.

Gbale
|

CTO

Ibadan, Oyo State, Nigeria

Summary

Transformed a rental listing platform into a 10-year renovation financing model, significantly reducing Nigeria's housing deficit and enabling job creation.

Highlights

Transformed a rental listing platform into a 10-year renovation financing model, directly addressing Nigeria's housing deficit.

Designed and implemented a scalable backend in Node.js and frontend in Vue.js, reducing renovation cycle times by 60% and enabling over 300 jobs.

Negotiated strategic investor partnerships, securing critical funding and support for platform expansion.

Defined comprehensive property onboarding and ROI tracking processes, ensuring efficient management and measurable impact.

Producemart
|

Technical Lead

London, UK, United Kingdom of Great Britain and Northern Ireland

Summary

Led the development of a B2B agricultural marketplace, enhancing cross-border transaction flows with critical localization and security features.

Highlights

Led development of a B2B agricultural marketplace, improving cross-border transaction flows with localization and security enhancements.

Defined API contracts (OpenAPI) and built robust middleware in Node.js to effectively interface with legacy ERP systems.

Collaborated on hiring technical team members, establishing a strong engineering culture through code review and pair-programming practices.

Paymoni
|

Technical Lead

Ibadan, Oyo State, Nigeria

Summary

Built a cash-withdrawal-at-shops web application, enhancing transaction throughput through database optimization.

Highlights

Built a cash-withdrawal-at-shops web app and integrated Flutter-based POS devices with Node.js backend.

Improved transaction throughput by 40% through optimized database sharding and caching strategies.

Wantoprint
|

Engineer & CEO

Ile-Ife, Osun State, Nigeria

Summary

Created a campus-wide printing solution, servicing thousands of students and dramatically reducing queue times.

Highlights

Created a campus-wide printing solution servicing 5,000 students, reducing queue times by 90%.

Implemented payment API integrations and a customer retention flow to enhance user experience and loyalty.

Managed full-stack development, overseeing all aspects from design to deployment.

Awards

Fintech Innovation Challenge Winner

Awarded By

Seerbit

Awarded as the winner of the Seerbit Fintech Innovation Challenge in 2022, recognizing innovative solutions in financial technology.

Oasis Innovation Challenge Winner

Awarded By

Gbale

Recognized as the winner of the Oasis Innovation Challenge in 2022, highlighting excellence in innovative project development.

Eko Climathon Runner-up

Awarded By

Eko Climathon

Achieved runner-up position in the Eko Climathon 2022, demonstrating strong problem-solving and sustainable innovation skills.

E-Naira Hackathon Top 20

Awarded By

E-Naira Hackathon

Ranked among the Top 20 participants in the E-Naira Hackathon 2022, showcasing expertise in digital currency solutions.

Student Innovation Challenge Winner

Awarded By

Passion Incubator

Secured the winner title in the Student Innovation Challenge 2019, recognizing exceptional innovative project development.

Prof. Ayodele Awojobi Design Competition Runner-up

Awarded By

Prof. Ayodele Awojobi Design Competition

Achieved runner-up status in the Prof. Ayodele Awojobi Design Competition 2019, demonstrating strong design and engineering capabilities.

Union Bank Innovation Challenge Finalist

Awarded By

Union Bank Innovation Challenge

Reached the finalist stage in the Union Bank Innovation Challenge 2018, showcasing innovative solutions in the banking sector.

Certificates

PHP Development Certificate

Skills

Programming Languages & Frameworks

JavaScript, Node.js, React, Vue.js, PHP, Laravel, Python, Java, Spring Boot.

Databases & Data Management

MySQL, PostgreSQL, Kafka, Zookeeper, Redis, Elasticsearch.

DevOps & Cloud

Docker, Kubernetes, Git, Jenkins, GitHub Actions, Terraform, Google Firebase, AWS (EC2, RDS).

API & Architecture

RESTful APIs, OpenAPI/Swagger, Microservices architecture, API-first Design.

Testing & Methodologies

Automated Testing (Unit/Integration), Agile, Scrum.

Messaging & Queuing

RabbitMQ, Postman.

Specialized Domains

Fintech, Agritech, Real Estate, Healthcare, E-commerce, LLM/NLP Pipelines.