Oluwaseyi Edward SegunSenior product engineer
Available for select engagements
Oluwaseyi Edward Segun
Python / Django / Flutter / Product systems

Software that carries the weight of the business.

I build backend-heavy web and mobile systems for businesses that need reliable software, not experiments.

I am a Python/Django full-stack engineer with 10+ years of experience designing management systems, internal tools, dashboards, admin platforms, e-commerce workflows, and operational software that teams depend on every day.

My strength is speed with structure. I move quickly from idea to production, but I care just as much about clean architecture, maintainable code, documentation, deployment, and long-term stability.

I am comfortable owning the full technical path: database design, backend architecture, APIs, real-time workflows, background jobs, integrations, server setup, monitoring, and production support.

10+Years building production systems
35+Projects across web, mobile, and operations
Full cycleArchitecture, build, deployment, and support
Contact
Emailedgamestar@yahoo.co.uk
Phone2347066453155
LocationLagos, Lagos State, Nigeria
LinkedInhttps://www.linkedin.com/in/edwardsegun
Whatsapphttps://wa.me/2347066453155
Core strengths
Backend architectureManagement platformsOperational dashboardsREST APIsFlutter appsPaymentsIoT workflowsProduction infrastructureDocumentation
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01 / Selected systems

Products built around real operations.

Selected platforms where users, staff, money, infrastructure, and operational workflows have to cooperate reliably every day.

01
Mobile AppsSelected system

Cajin Solar & Villeren Renewable Energy Platform

Flutter mobile apps, Django backends, admin workflows, payments, referrals, IoT device onboarding, analytics, and operational tooling for solar mobility and mini-grid operations.

https://cajinsolar.com/resources/mobile-app/

02
E-commerceSelected system

MEGACAREONLINE Commerce & Health Platform

A health, beauty, and lifestyle e-commerce ecosystem with inventory, CRM, logistics workflows, pharmacist chat, lab test requests, trackers, and multi-currency support.

03
Backend EngineeringSelected system

Folti Ride-Hailing Backend Foundation

Production-ready Django backend for a ride-hailing MVP with scalable APIs, Linode infrastructure, monitoring, and ReadTheDocs documentation.

04
Product SystemsSelected system

Jekaplay Operations & Arcade Automation

Digital operations platform for sales, food ordering, arcade operations, wallets, online payments, blogs, bulk SMS, and game-station automation.

05
E-commerceSelected system

Black & Colours Online Ordering Platform

E-commerce platform for online ordering, customer engagement, inventory tracking, CRM, reporting, CMS, multi-currency transactions, and email operations.

06
Product SystemsSelected system

Yallagan Community Platform & Mobile App

A bespoke Django website and Flutter mobile app that replaced a WordPress presence with richer community features, management tools, operational workflows, and third-party integrations.

https://yallagan.com/

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02 / Recent experience

Hands-on engineering with product ownership.

2025 - Present

Back End Developer

Folti Technologies Limited

Retained to provide ongoing backend and IT support, helping maintain internal systems, resolve technical issues, and support in-house IT operations.

Focus areas include backend reliability, infrastructure support, troubleshooting, and keeping key technical workflows running smoothly.

2025 - Present

Product & Software Engineer

Sunhive Ltd

Building product and software platforms for renewable energy operations across solar mobility, mini-grid operations, customer management, payments, IoT control, analytics, and admin workflows.

Lead development across the Cajin Solar Flutter app, Django backend systems, and web-admin tools used by customers, field teams, station operators, affiliates, and internal staff.

Tech: Flutter, Dart, Django, Python, DRF, PostgreSQL, Celery, Redis, Firebase Cloud Messaging, Paystack, OPay, Monnify, Shelly IoT, and REST APIs.

2018 - 2025

Head Of Information Technology Department

Mul-T-Lock Nigeria Limited

Lead the company's IT function and a team of three developers, overseeing software development, infrastructure, internal systems, and day-to-day technology operations.

Design and manage web application architecture, coordinate development tasks, support servers and websites, manage email systems, ISP relationships, internal networking, and business technology stability.

2024 - 2025

Contract Developer

Yallagan

Revamped Yallagan's digital platform by replacing its WordPress website with a bespoke Django application, expanding its functionality, and building the accompanying Flutter mobile app.

Delivered stronger management tools, broader third-party integrations, and operational workflows that improved the organization's digital presence and supported more of its day-to-day activity.

Tech: Python, Django, Flutter, Dart, REST APIs, third-party integrations, Linux, and Nginx.

2023 - 2024

Back End Developer

Folti Technologies Limited

Served as sole backend engineer for a ride-hailing startup, leading backend design, development, deployment, monitoring, and documentation ahead of MVP launch.

Built the backend from scratch with Django, designed scalable REST APIs, managed Linode infrastructure, configured production deployments, and implemented Prometheus/Grafana monitoring.

03 / 04
03 / Career foundation

Earlier delivery, education, and technical range.

2021 - 2023

Chief Technology Officer

MEGACAREONLINE

Led development of a health, beauty, and lifestyle e-commerce ecosystem from the ground up.

Designed backend architecture, database structure, inventory, CRM, logistics workflows, health trackers, pharmacist chat, lab test requests, multi-currency support, VPS deployment, user training, and ongoing improvements.

Tech: Python, Django, Celery, Redis, PostgreSQL, Elasticsearch, TinyMCE, Ubuntu, Nginx, Daphne, Supervisord, and PgBouncer.

2016 - 2023

Web Developer

Jekaplay

Built and maintained a digital operations platform supporting sales tracking, food ordering, arcade operations, wallet functionality, online payments, blogs, bulk SMS, and e-commerce features.

Delivered an arcade automation system using an internet-enabled SPDT relay board to control game stations based on paid play time.

Tech: Python, Django, Channels, Redis, MySQL, TinyMCE, Ubuntu, Nginx, Daphne, and Supervisord.

2022 - 2022

Web Developer

Energy First Limited

Developed an e-commerce and billing platform supporting product purchases, prepaid electricity unit transactions, and STS 20-digit token generation.

Built inventory, CRM, reporting, support, FAQs, knowledge base, CMS, multi-currency transactions, deployment, and user training.

2020 - 2021

Web Developer

Wellpath Physiotherapy

Designed and developed a custom e-commerce platform that helped extend physical-store operations into online retail for medical devices and wellness products.

Built product management, online sales, inventory, CMS updates, email marketing, DNS configuration, VPS deployment, and production setup.

2020 - 2021

Web Developer

BLACK & COLOURS LTD

Developed an e-commerce platform to modernize online ordering, customer engagement, inventory tracking, and sales operations.

Built product catalogs, sales management, inventory, CRM, reporting, CMS updates, multi-currency transactions, email marketing, DNS, VPS deployment, and custom email server setup with iRedMail.

Education

Postgraduate Degree2024 - 2024

Post Graduate Program in Artificial Intelligence and Machine Learning: Business Applications · The University of Texas at Austin

Bachelor of Science (B.Sc.)2011 - 2017

Computer Science · University of Lagos

Technical strengths

Python95%
Django95%
Django REST Framework92%
Backend Architecture94%
API Development94%
PostgreSQL88%
MySQL84%
Celery & Redis86%
Django Channels & WebSockets85%
Flutter & Dart82%
Linux/VPS Deployment90%
Prometheus & Grafana78%
Solution Architecture90%
Documentation86%
Available worldwide from Lagos

Senior engineering for teams that need the software to work.

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