Abayomi Olowu: Engineering Scalable Backend Systems that Power Modern Digital Innovation
In a digital world where reliability, security, and performance define the success of modern applications, Abayomi Olowu stands as a seasoned Backend Engineer committed to building efficient and scalable
Backend Engineer @ FSDH Merchant Bank | Backend Development| C# | Dotnet | Python | Django | DRF
backend systems. With years of hands-on experience and a strong command of technologies such as C#, .NET, Python, Django, DRF, PostgreSQL, and SQL Server, Abayomi consistently delivers robust engineering solutions across fintech, identity management, and enterprise systems.
Currently a Backend Engineer at FSDH Merchant Bank, he plays a pivotal role in architecting mission-critical applications that support operational excellence, banking automation, and customer experience transformation. His track record across leading organizations highlights a professional driven by precision, innovation, and results.
Abayomi Olowu is a highly skilled Backend Engineer with deep experience in backend architecture, API engineering, system optimization, database management, and cloud-based application deployment.
His rich technology background spans:
- C#, .NET, ASP.NET Web API
- Python, Django & Django Rest Framework
- SQL Server, PostgreSQL, MSSQL
- Microservices Architecture
- Linux Server Administration
- Caching, Background Task Scheduling, API Integrations
Beyond his technical skills, Abayomi is known for exceptional problem-solving abilities, communication strength, attention to detail, and a consistent passion for learning. He thrives in collaborative environments and brings clarity to complex engineering challenges.
PROFESSIONAL EXPERIENCE
| Organization | Role / Position | Duration | Key Responsibilities & Achievements |
| FSDH Merchant Bank | Backend Engineer | Feb 2025 – Present | Designed a multi-currency account opening workflow allowing customers to open multiple accounts in one action. Implemented document upload optimization and data synchronization with ProcessMaker. Built SIM-swap wrapper APIs integrating NIBSS services. Developed a Windows service processing 20,000+ SIM-swap verifications daily. Integrated M-Files Document Management APIs to streamline enterprise document operations.
Abayomi Olowu Profile |
| SecureID Limited | Backend Engineer | Jun 2023 – Feb 2025 | Improved legacy Python/Django systems, enhancing user satisfaction by 80%. Built microservice-based mailing/OTP delivery solution. Contributed to Single Sign-On platform (user and role modules). Led development of bank card delivery system with 95% success rate. Supported client integrations and optimized internal Web APIs.
Abayomi Olowu Profile |
| Interswitch Group | Software Engineer (Full-Stack) | Aug 2022 – Nov 2022 | Built MVC-based waste management platform and integrated Quickteller payment APIs. Improved UX and responsiveness using Bootstrap/CSS. Optimized database operations by 90% using ORM-powered SQL querying. Deployed project to cloud hosting environments.
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| First Pavilion Technologies | Backend Web Developer | Jan 2022 – Jul 2022 | Built enterprise SaaS ERP API on AWS Cloud using PostgreSQL and Django ORM. Improved query responses by 90% using caching. Created automated task schedulers and email notifications with Redis. Led unit testing and bug resolutions across the engineering team.
Abayomi Olowu Profile |
| HNG Tech | Backend Web Developer | Mar 2021 – Dec 2021 | Built API-based Slack-like messaging solution using Django Rest Framework. Migrated systems from MySQL to PostgreSQL, improving response time by 25%. Implemented caching for 24/7 app availability and participated in large team-based engineering sprints.
Abayomi Olowu Profile |
| Reskill Americans (USA) | Backend Web Developer | Mar 2021 – Oct 2021 | Contributed to development of a wildfire assistance platform supporting US-based users. Led a 5-member cross-functional team for e-commerce platform launch. Deployed applications on Heroku and optimized PostgreSQL-based systems.
Abayomi Olowu Profile |
| National Youth Service Corps (NYSC) | Data Processing Tutor | Oct 2019 – Oct 2020 | Trained secondary school students in databases, computing fundamentals, and productivity tools. Strengthened student understanding of computer operations and data literacy.
Abayomi Olowu Profile |
EDUCATIONAL BACKGROUND
| Institution | Qualification | Field of Study | Duration |
| Moshood Abiola Polytechnic | Higher National Diploma (HND) | Computer Science | Nov 2016 – Nov 2019
Abayomi Olowu Profile |
| Moshood Abiola Polytechnic | Ordinary National Diploma (OND) | Computer Science | Nov 2012 – Nov 2014
Abayomi Olowu Profile |
CERTIFICATIONS
- Simple Retrieval Queries in MySQL Workbench
- Crash Course on Python
- Django Web Framework (APIs)
- Programming in Python
CORE SKILLS
- Backend Development (C#, .NET, Python, Django)
- REST API Design & Integration
- Database Architecture (PostgreSQL, MSSQL, SQL Server)
- Background Task Scheduling (Hangfire, Celery/Redis)
- Cloud Deployment (AWS, Heroku)
- Microservices Architecture
- Linux Server Administration
- Code Optimization & Performance Engineering
Abayomi’s engineering philosophy is grounded in scalability, clarity, security, and long-term maintainability. He believes that impactful backend engineering requires:
- Writing clean, extensible, and well-structured code
- Building systems that scale effortlessly
- Using automation to improve efficiency
- Thinking critically about system architecture
- Staying adaptable to emerging technologies
He is passionate about continuous learning, architecting modern systems, and contributing to solutions that solve real-world problems.
Abayomi Olowu represents the modern backend engineer—skilled, forward-thinking, and relentlessly committed to building high-performance systems. His contributions across fintech, identity management, and enterprise technology demonstrate his leadership, technical excellence, and ability to translate complex challenges into intelligent, scalable solutions.
As he continues to innovate at FSDH Merchant Bank, Abayomi remains a valuable force in Africa’s growing tech ecosystem—delivering backend systems that strengthen organizations and enhance digital experiences.
Connect with Abayomi Olowu:
LinkedIn: www.linkedin.com/in/aayobam
