Open to opportunities

Ajiboye Adedotun

@ajiboyeadedotun

Message

Senior Backend Engineer with expertise in scalable software solutions.

Nigeria

Message

What I'm looking for

I am looking for a role that fosters innovation, collaboration, and growth opportunities.

I am a Senior Backend Engineer with over 5 years of experience in architecting and crafting scalable software solutions, particularly in the fintech and healthcare sectors. My journey has been marked by a passion for driving innovation through clean code and collaboration. I have successfully led teams to deliver impactful features, such as direct debit systems that simplify payments, cut errors, and boost efficiency.

At Duplo, I architected a pre-signed URL system for secure document uploads and developed a Direct Debit feature that streamlined payment workflows. My role as a mentor to junior engineers has allowed me to foster skill development and ensure high-quality code across the team. I thrive in environments that challenge me to push the boundaries of technology and improve user experiences.

Throughout my career, I have consistently focused on optimizing performance and reliability in backend systems. My experience with various technologies, including AWS, Google Cloud, and multiple database systems, has equipped me with the skills to tackle complex challenges and deliver robust solutions. I am eager to continue my journey in a role that values innovation and collaboration.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Duplo

May 2024 - Present (1 year 1 month)

As a Backend Engineer at Duplo, I architected a pre-signed URL system for secure document uploads and developed a Direct Debit feature, enhancing payment workflows. I led the Mock Server project to improve transaction success rates and designed a roles and permissions framework for access control. Additionally, I integrated Two-Factor Authentication and mentored junior engineers.

AWS Microservices Roles And Permissions Mentorship Database Optimization Agile

Backend Engineer

mDoc

Jun 2023 - Jun 2024 (11 months)

Led the backend development of a Learning Management System for healthcare professionals, architected Google Cloud Functions for notifications, and revamped backend systems for improved performance. Maintained system reliability and optimized performance across projects.

Google Cloud Functions MongoDB TypeScript AWS Lambda Backend Development Reliability Performance Optimization

Backend Engineer

mDoc

Jun 2023 - Jun 2024 (11 months)

At mDoc, I led the backend development of a Learning Management System for healthcare professionals, architected Google Cloud Functions for automated notifications, and revamped backend systems for improved performance. I maintained system reliability and utilized MongoDB and AWS Lambda for scalable solutions.

Google Cloud Functions MongoDB TypeScript AWS Lambda Learning Management Systems Performance Optimization Agile

Lead Backend Engineer

Peddle Technologies

Sep 2021 - May 2023 (1 year 8 months)

As Lead Backend Engineer at Peddle Technologies, I optimized database performance with PostgreSQL and Prisma ORM, developed a cookie-based affiliate tracking algorithm, and orchestrated third-party API integrations. I guided the team through code reviews and shaped scalable system architecture.

PostgreSQL Prisma API Integration Code Review Systems Architecture Team Leadership Performance Optimization Agile User Experience

Lead Backend Engineer

Peddle Technologies

Sep 2021 - May 2023 (1 year 8 months)

Optimized database performance with PostgreSQL schemas, pioneered a cookie-based affiliate tracking algorithm, and orchestrated third-party API integrations. Guided the team through code reviews and shaped scalable system architecture.

PostgreSQL API Integration Code Review Scalability Optimization

Backend Engineer

Nosh

Jan 2019 - Sep 2021 (2 years 8 months)

Enabled utility bill payments by integrating Flutterwave API, crafted MongoDB schemas, and introduced face verification for KYC. Built a wallet system for gift card trading and authored API documentation to streamline team onboarding.

Flutterwave API MongoDB Mongoose KYC Wallet System API Documentation

Backend Engineer

Nosh

Jan 2019 - Sep 2021 (2 years 8 months)

At Nosh, I enabled utility bill payments by integrating the Flutterwave API, crafted MongoDB schemas for data integrity, and introduced face verification for KYC processes. I built a wallet system for gift card trading and authored API documentation to streamline team onboarding.