Backend Engineer • Cloud • DevOps

Hi, I’m Ifeoluwa Okesola

I design and build scalable backend systems, automate workflows, and deploy production-ready infrastructure using NodeJS, NestJS, TypeScript, and AWS.

Ifeoluwa Okesola

About Me

Building systems that solve real problems

I am a backend engineer with over 3 years of experience building scalable, secure, and efficient systems. I specialize in designing robust APIs and backend architectures using technologies like NestJS, TypeScript, and Node.js.

In my work, I have engineered systems that automate decision-making processes, reduce manual intervention, and improve operational efficiency. From rule-based driver tracking systems to fintech platforms with secure KYC flows, I focus on building solutions that have measurable impact.

Beyond backend development, I also work with cloud infrastructure and DevOps practices, including containerized deployments, CI/CD pipelines, and AWS services. I enjoy thinking through architecture, performance, maintainability, and long-term scalability.

Core Stack

Skills

Backend

Node.jsNestJSGraphQLREST APIs

Languages

JavaScriptTypeScriptC#

Databases

PostgreSQLMongoDBMySQLMSSQL

Cloud & DevOps

AWS (EC2, S3)DockerNginxCI/CD (GitHub Actions)

Tools & Others

SwaggerPostmanGitContentful CMS

Selected Work

Projects

Cloud Infrastructure for Retail Microservices

Provisioned AWS infrastructure for a retail application on Amazon EKS using Terraform, including segmented networking, load balancing, IAM/RBAC access control, and CI/CD workflows. Designed for real-world deployment and operational efficiency.

Impact

  • Designed reproducible infrastructure using Terraform
  • Deployed microservices to EKS with private worker nodes
  • Implemented IAM and Kubernetes RBAC for secure access control
  • Automated terraform plan/apply workflows using GitHub Actions
  • Deprovisioned infrastructure after validation to optimize cloud costs
TerraformAWSEKSIAMRBACGitHub ActionsALBVPC

Infrastructure is currently offline to optimize cloud costs. The repository contains reproducible infrastructure code and setup instructions.

Driver Offense Tracking System

A rule-based backend system that tracks driver violations such as speeding and seatbelt offenses, automatically assigns penalty points, and triggers coaching workflows.

Impact

  • Reduced manual HR intervention through automation
  • Enabled proactive driver performance monitoring
  • Improved safety compliance through behavioral tracking
NestJSTypeScriptMSSQLTypeORMGoogle Geocoding API

Codebase is private due to company confidentiality.

Fintech Currency Exchange Platform (FxPal)

A secure backend system for a currency exchange platform with real-time processing and multi-level KYC verification.

Impact

  • Implemented BVN and tier-based KYC verification
  • Integrated real-time financial services
  • Built scalable architecture using gRPC
NestJSTypeScriptMongoDBgRPC

Codebase is private due to company confidentiality.

QR Code Check-in System

A real-time check-in/out system designed to improve efficiency and security during high-traffic events.

Impact

  • Reduced check-in time by over 50%
  • Eliminated manual entry errors
  • Improved security with trackable access
NestJSGraphQLMongoDBMongoose

Codebase is private due to project confidentiality.

Engineering Thinking

How I approach backend systems

I approach backend development by thinking in terms of systems, not just features. My focus is on building architectures that are scalable, maintainable, and resilient under real-world usage.

When designing a system, I prioritize clear data flow, separation of concerns, and extensibility. My aim is to ensure that new features can be added with minimal disruption.

I also pay close attention to automation and operational efficiency, reducing manual intervention through well-designed workflows, background processes, and CI/CD pipelines.

Security and performance are always part of the design from the start, not afterthoughts. From implementing access control to designing efficient database queries, I build systems that are reliable in production environments.

Qualifications

Experience & Education

Experience

Backend Engineer — BeerTechAfrica (AB InBev)

June 2023 – Present

  • Built a rule-based driver offense tracking system
  • Automated coaching and penalty workflows
  • Integrated Google Geocoding API for location-aware tracking

Backend Engineer — FxPal (Hephzit Technology)

January 2024 – March 2024

  • Built a fintech backend with a multi-level KYC verification system
  • Integrated third-party financial services
  • Designed secure and scalable backend architecture

DevOps Engineer — Asher Team Technology

December 2025 – Present

  • Deployed containerized applications on AWS EC2
  • Implemented CI/CD pipelines with GitHub Actions
  • Configured HTTPS with Nginx and Let’s Encrypt

Education

Diploma in Cloud Engineering

AltSchool Africa

November 2024 – October 2025

Certificate in Software Development (Magna Cum Laude)

Women Techsters Fellowship, Tech4Dev

August 2022 – February 2023

Postgraduate Diploma in Chemistry

Bayero University Kano

September 2019 – February 2022

Bachelor of Education in Chemistry

University of Ibadan

September 2009 – December 2013

Recognition

Achievements & Certifications

Achievements

  • First runner-up at the 2023 International Breweries hackathon, receiving a $2000 prize.
  • Top 20 out of 100 capstone projects in the Women Techsters Fellowship.
  • Top three ranking in the Interswitch Job Shadowing cohort.

Certifications

  • JavaScript Algorithms and Data Structures — freeCodeCamp
  • Backend Development and APIs — freeCodeCamp
  • Diploma in Cloud Engineering — AltSchool Africa

Contact

I’m open to backend engineering roles, collaborations, and interesting projects. Feel free to reach out.