Adedayo Theophilus

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Backend Developer

Emerj (Inventrix)

Dec 2025 - Current (5 months)

• Contributing to inventory management platform (inventrix.work) designed for small and medium-scale businesses • Collaborating with backend team on API development and system architecture using Spring Boot • Building production-ready features for real-world business inventory tracking and management

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Co-Founder & Backend Lead

MyMemori

Nov 2025 - Current (6 months)

As Co-Founder & Backend Lead, I played a pivotal role in the development and launch of a production photo-sharing app utilized at three live events (wedding, anime convention, social gathering), successfully serving over 100 users who uploaded more than 500 photos with zero downtime. I engineered a progressive authentication system that provided guest users immediate access while seamlessly preserving their activity history (uploads, reactions) upon registration, effectively eliminating onboarding friction and increasing conversion rates. Additionally, I architected a scalable backend API using Spring Boot and PostgreSQL, capable of handling concurrent image uploads, user sessions, and real-time reactions during peak event usage. The app is

Backend Engineering Intern (Team Lead)

HNG Internship

Oct 2025 - Dec 2025 (3 months)

• Led a team of 4 developers in the architectural design and implementation of a distributed microservices system, ensuring seamless communication between the API Gateway and internal services. • Engineered a robust Notification Microservice, handling complex logic for dispatching alerts across different channels (Email/SMS) while maintaining data consistency. • Resolved critical inter-service communication issues within a Dockerized environment, debugging networking failures to ensure 100% uptime during evaluation stages. • Operated with a 'Ship or Sink' mindset, Managed aggressive delivery timelines in a high-pressure environment, resolving merge conflicts and deploying feature-complete updates weekly to ensure the product survived elimin

Freelance Software Developer

Remote

Jun 2025 - Current (11 months)

• Architected the full development lifecycle for "MediMap," a location-based React/Spring application. Optimized geospatial queries to allow users to locate emergency services within a 5km radius instantly. • Developed a high-performance E-commerce platform (RamyJoo https://ramyjooapparel.com/), integrating Cloudinary for media optimization, which reduced page load latency by 40% and improved user retention. • Translated ambiguous client requirements into strict technical specifications and database schemas (ERDs), ensuring the final deliverable matched the client's business goals.

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Founder & Product Lead

Avaprim (Consumer Goods)

Dec 2024 - Current (1 year 5 months)

• Built a Product from Scratch: Launched a consumer food brand (Beans Flour) for the Nigerian market, handling the entire lifecycle from supply chain sourcing to product packaging design. • Product Strategy: Designed the visual identity and packaging labels to communicate a "happy, exciting" brand vibe, validating market fit through direct sales. • The Takeaway: I understand that engineering is a tool to solve user problems and drive business revenue.

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Data Automation Analyst Intern

GreenTree Capital (Remote)

Jun 2024 - Dec 2024 (7 months)

• Identified inefficiencies in the intern recruitment pipeline and engineered an automated workflow using the Microsoft Power Platform, reducing manual data entry and administrative overhead by approximately 30%. • Built dynamic visualization dashboards (Power BI/Fabric) that allowed stakeholders to track real-time KPIs, directly influencing recruitment strategy decisions. • Served as the bridge between technical and non-technical teams, translating complex data insights into actionable business logic for cross-functional stakeholders. • Gained valuable experience in a remote work environment, collaborating with colleagues across the globe, including administrative heads in China and Illinois, which enhanced my analytical skills while as

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Co-Instructor (Python & Data Analysis)

Nigeria 3MTT Training

Feb 2024 - Apr 2024 (3 months)

As a Co-Instructor in Python & Data Analysis, I instructed a cohort of students on Python programming and SQL logic, effectively breaking down abstract computer science concepts into practical, real-world examples. I mentored students through debugging sessions, fostering critical thinking and teaching them how to read stack traces and solve logic errors independently. Additionally, my experience with the federal government of Nigeria's 3MTT initiative allowed me to teach and engage with a diverse audience, including individuals with little to no background in technology. This role required me to communicate complex concepts in an accessible manner, ensuring that even those with minimal educational experience could grasp the material. This

Adedayo Theophilus

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