Oluwatoyin Samuel Komolafe// backend engineer

Backend Engineer · Evka B.V.

Backend for Omega Inspectie, an inspection-management platform for a Dutch energy-technology firm, the company's AI chatbot, and new products that aren't public yet.

• Omega Inspectie· inspection-management platform
• meetmiddelen.eu· debugged & deployed

• ›Led end-to-end development of the Evka Chatbot, from ERD design and authentication through to production infrastructure.
• ›Designed the move of the inspection-management platform to a scalable multi-tenant SaaS architecture.
• ›Built Omega Inspectie, the inspection-management system, with status tracking, reference handling and migration of historical data.
• ›Integrated third-party APIs, including Exact Online accounting, with secure authentication and resilient error handling.
• ›Built document processing with regex-based pattern recognition and bulk file uploads, plus data-scraping tools with localized CSV exports.
• ›Set up production servers, deployment pipelines, and the logging and debugging tooling the team uses to resolve production issues.
• ›Debugged and deployed meetmiddelen.eu, a production WordPress site.

• TypeScript
• Node.js
• Python
• FastAPI
• MongoDB
• Redis
• Multi-tenancy
• Exact Online

Team Lead, Backend Engineering · Snapnet Solutions

↑ promoted from Backend Engineer

Backend for HCMatrix, an HR and payroll management suite.

• HCMatrix· product site
• HCMatrix app· web app

• ›Led the transformation of HCMatrix from a monolith into a scalable, multi-tenant SaaS platform, and led the team that shipped the HCMatrix v3 MVP.
• ›Designed a microservices architecture that cut development time by 59% and sped up bug resolution, with service isolation keeping the platform up during partial outages.
• ›Built the payroll module, with automated salary calculation, multi-level approval workflows and integrated disbursements, cutting company operating costs by 23.4%.
• ›Set up CI/CD with Jenkins and monitoring with Prometheus and Grafana; designed data models across multiple services.
• ›Ran backend training programs and mentored junior engineers and interns while running v2.5 maintenance alongside new feature work.

• Microservices
• Multi-tenancy
• Jenkins
• Prometheus
• Grafana

Backend Engineer · Quocreo

Salary-structure and compensation-planning engine for HR teams.

• ›Built a salary-structure engine that computes pay across multi-tier grade levels and steps, with dynamic component management.
• ›Built a projection system that simulates the financial impact of percentage-based changes and shows the effect in real time, so HR teams can make data-driven decisions.
• ›Designed a database schema for complex salary structures and their history, and a library of reusable components that cut development time by 45%.
• ›Wrote system documentation that shortened onboarding for new engineers.

• TypeScript
• Node.js
• Python
• MongoDB
• Redis
• Data modeling

Backend Developer · Varroe

Microservices and integrations for Varroe, a booking and appointments platform.

• ›Designed and built a Node.js/TypeScript microservices architecture that made third-party API integrations straightforward.
• ›Optimized database architecture and queries, making query responses 50% faster.
• ›Introduced a testing framework and debugging protocols that cut bug resolution time by 60%.
• ›Built shared libraries and coding standards that cut feature iteration time by 40%.

• Node.js
• TypeScript
• Microservices
• REST
• Testing

Lead Software Developer · Cpaat Consulting Limited

Led the rebuild of GateHouse, an access-management app for residential estates and gated communities.

• GateHouse· product site

• ›Led the redesign of GateHouse, improving application functionality by 60%.
• ›Delivered a mobile app for residents and security staff that cut hardware costs by 43%.
• ›Built CI/CD pipelines that cut deployment time by 95%, and ran the handover and hiring of my replacement.

• TypeScript
• Node.js
• Python
• MongoDB
• Redis
• CI/CD

Backend Developer · Platr

Core product services and RESTful APIs.

• platr.ng

• ›Optimized the core JavaScript codebase, improving application performance by 55%.
• ›Re-architected core services in Node.js, reducing system complexity by 35%.
• ›Built RESTful APIs for dynamic datasets, improving data-processing efficiency by 50%.
• ›Wrote developer guides that cut onboarding time for new engineers by 45%.

• Node.js
• JavaScript
• REST APIs
• Performance