OPEN TO INNOVATIVE PROJECTS

Software Developer &
Product Builder.

"I solve user problems and ship production-ready solutions." Backend Engineer specializing in Java & Spring Boot high-availability systems with a "Ship or Sink" mindset.

Adedayo Adedeji Theophilus

Current Mission

Currently engineering at Emerj (Inventrix), collaborating on system architecture and API development for mission-critical SME inventory management platforms.

Product Builder

I bridge the gap between technical complexity and user-centric value.

MyMemori
100+ Users 500+ Photos

MyMemori

Co-Founder & Backend Lead. Shipped a photo-sharing app used at 3 live events with zero downtime. Engineered progressive auth to eliminate onboarding friction while preserving user state.

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Ramy Joo 1 Ramy Joo 2
40% Latency Reduction

Ramy Joo Apparel

High-performance e-commerce platform. Integrated Cloudinary for media optimization, reducing latency by 40% and directly improving user retention.

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VidMetrics Dashboard 1 VidMetrics Dashboard 2
Next.js 15 YouTube API

VidMetrics

YouTube channel analytics platform surfacing deep performance patterns via Z-score outlier detection. Built with Next.js 15, multi-chain API sequences, and custom caching. Shipped in 48 hours.

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Technical Prowess

Engineering Depth

Event Rental 1 Event Rental 2

Event Rental Management

Designed a backend API to solve inventory over-booking. Implemented rigorous database locking strategies and a complex relational schema to ensure data integrity during peak demand.

Java Spring Boot PostgreSQL

MediMap

Architected a location-based emergency response system by optimizing geospatial queries. Engineered efficient indexing to allow users to locate services within a 5km radius instantly, solving the critical "time-to-care" gap.

Spring Boot React Geospatial Queries PostgreSQL

Professional Experience

Software Engineer | Emerj (Inventrix)

Jan 2026 - Present

Collaborating on system architecture and API development for mission-critical SME inventory management platforms. Engineering high-availability backend solutions to streamline business operations and data integrity.

Java Spring Boot System Architecture

Team Lead | HNG Internship

Oct 2025 - Dec 2025

Led a team of 4 developers in architecting a distributed microservices system. Engineered a robust Notification Microservice for Email/SMS, maintaining 100% uptime during evaluation stages.

Microservices Docker Technical Leadership

Data Automation Analyst | GreenTree Capital

June 2024 - Dec 2024

Engineered an automated workflow reducing administrative overhead by 30%. Built dynamic Power BI dashboards for real-time KPI tracking, bridging the gap between technical and business stakeholders.

Power Automate Power BI Data Insights

Academic Background

Education

Kaduna Polytechnic

HND Computer Science

2023 - 2025

Focus: Software Engineering, Advanced Java, System Design.

Community

Mentorship

Co-Instructor at Nigeria 3MTT. Instructed a cohort on Python and SQL logic, breaking down abstract concepts into practical examples. Mentored students through debugging sessions and stack trace analysis.

Python SQL Logic Technical Mentoring
Backend Java / Spring Boot
Database PostgreSQL / MySQL
Infrastructure Docker / Linux
Tools Git / Maven / Postman
Automation CI/CD / Python

Let's build with intent.

Whether you have a product idea or need a backend expert to scale your system, let's talk.

+234 903 973 4698