Adéolúwa Abraham Adéyẹmí

Adéolúwa Abraham Adéyẹmí

Software Engineer · Lagos, Nigeria

I design and ship web and mobile applications, backend systems and the cloud infrastructure they run on, with a focus on performance, reliability and clear collaboration. Currently building revenue platforms at Etranzact and leading product engineering at Synctech Innovations.

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01Selected work

Syntherium

Syntherium is an integrity protocol engine built by Synctech Innovations: one protocol serving multiple regulated industries with immutable, append-only records, atomic transactions and a single source of truth. It underpins EZGas, ZynGas and GPAS.

Typescript · NestJS · Docker · AWS

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Synctech Innovations

Synctech Innovations is a software company based in Lagos, Nigeria, building web, mobile and infrastructure products including EZGas and Syntherium.

NextJS · Typescript · React Native (Expo) · AWS

WebRise Nigeria

WebRise is a Nigerian digital agency that designs and builds websites, business systems and mobile apps for local businesses, with fixed naira pricing, monthly Paystack payments and full ownership after the final payment.

NextJS · Typescript · Tailwind · Paystack

Speeddi Foods

Speeddi Foods lets customers order staple foods for themselves or family, paying immediately or later once their credit is approved.

NextJS · Typescript · Tailwind · Paystack

Depot Price Today

Depot Price Today is a web platform for keeping up with daily depot prices.

NextJS · Typescript · Tailwind · Paystack

EZ GasIn maintenance

EZ Gas is a modern platform designed to simplify gas ordering and delivery for households and businesses. The mobile app ensures seamless ordering, real-time tracking, and reliable service powered by a scalable backend infrastructure.

React Native (Expo) · NestJS · NATS · Sentry · MongoDB · Docker

Partner MobileIn maintenance

Partner Mobile is a tech company that provides high-speed fiber optic internet connectivity and offers a wide range of mobile phones and accessories. The platform ensures seamless user experience and reliable services through a scalable and secure backend system.

NestJS · Docker · Kafka · Sentry · Postgresql

TiqpayIn maintenance

TiqPay is a cutting-edge fintech application designed to streamline transactions and elevate your financial management experience.

Typescript · NextJS · Postgresql · NestJS · React Native(Expo)

02Experience

Nov 2025 - Present

Software Engineer

Etranzact

  • Built and optimized backend services for the Osun, Jigawa, and Ojodu State OneMoni revenue platforms using NestJS, Sequelize, and MySQL, powering four core modules: Consultant (agent management), Agent (payment collection), IRS Admin Portal, and Taxpayer, improving API performance and data consistency by 40%.
  • Designed and implemented a wallet system for Jigawa State enabling seamless payment processing for taxpayers and agents.
  • Integrated KYC verification (NIN, BVN, and facial verification) using MetaMap to strengthen identity validation and compliance across the platform.
  • Integrated Credo and additional payment channels, increasing successful revenue collections by 35% across taxpayer and agent transactions.
  • Developed an internal OneMoni demo system for the business team, boosting client engagement and product demonstrations by 50%.
  • Built the frontend for the NRS (Nigeria Revenue Service) internal management portal using Next.js and React, equipping tech support, DevOps, and operational teams with VAT automation verification, e-invoicing, and revenue collection tools (manual payments, unpaid PRN tracking, payment reporting) that streamlined processing for millions of monthly transactions and cut manual reconciliation time by 30%.
Jun 2025 - Present

Lead Software Engineer

Synctech Innovations

  • Served as Lead Software Engineer on the EZGas mobile platform, building the application end-to-end using React Native (Expo) for mobile and Node.js (Express) with MongoDB for backend services.
  • Led system architecture and core feature development, including Paystack payment integration for secure and reliable in-app transactions.
  • Designed, deployed, and maintained production infrastructure on AWS EC2, managing server setup, environments, and scalability for a startup-grade product.
  • Managed mobile app builds, releases, and updates to the Apple App Store and Google Play Store using Expo Application Services (EAS) to streamline deployment and versioning.
  • Owned technical direction and the full product lifecycle, from initial build to production rollout, ensuring performance, stability, and long-term maintainability.
Mar 2025

Software Engineer

Partner Mobile

  • Designed and developed RESTful APIs using NestJS, enabling seamless communication between the mobile frontend and backend services.
  • Built a scalable backend architecture with NestJS and Docker, improving deployment and service uptime by 40%.
  • Integrated Kafka to manage background tasks and queues, enhancing system throughput by over 50%.
  • Implemented Paystack for secure payment processing and Sentry for real-time monitoring, reducing transaction failures by 30% and cutting bug resolution time by 35%.
Jul 2024 - Feb 2025

Software Engineer

Booking Corps

  • Collaborated with UI/UX designers and external teams to develop a hotel and shortlet booking platform, increasing user engagement by 25%.
  • Integrated Stripe and Paystack for secure payments, reducing failed transactions by 40% and improving checkout reliability.
  • Conducted internal deployments and testing that enhanced system uptime to 99.9%.
Sep 2023 - Jan 2025

Software Engineer

Tiqbuy

  • Led migration of the e-commerce platform to a Next.js MedusaJS-powered stack, improving page load speed by 45%.
  • Built real-time dashboards tracking user behavior and product performance, enabling a 35% increase in marketing ROI through better targeting.
  • Supported a cross-functional team of 6 developers and marketers in implementing analytics tools that reduced decision-making time by 20%.
Jun 2023 - Nov 2025

Software Engineer - Team Lead

Gracetech Group

  • Spearheaded development of a biometric-based ERP attendance system used by 100+ employees, improving attendance accuracy by 85%.
  • Designed and launched a ticketing help desk system that reduced average support resolution time from 5 days to 1.5 days (70% improvement).
  • Increased user satisfaction scores by 40% through streamlined support workflows.
May 2024

Software Engineer

Tiqpay

  • Managed core banking IT operations, reducing system downtime by 30%.
  • Created and assigned staff profiles on internal systems, improving onboarding efficiency by 50%.
  • Developed a secure desktop plugin for transaction validation, increasing fraud detection accuracy by 60%.
  • Coordinated frontend integration with the Tiqpay gateway, ensuring 100% compatibility.

03Skills

javascript · typescript · reactjs · nextjs · expressjs · nestjs · tailwind · react native · woocommerce · wordpress · docker · nginx · postgresql · kafka · redis · git · mongodb · mysql · sequelize · aws