Here I'am Caleb Mantey

I'm a Passionate XR Developer & Software Engineer
7+ Years in Software Engineering | Pioneer in XR in Ghana/Africa since 2016

Personal Details

Email: manteycaleb@gmail.com

What I Do:

Hello I'm Caleb Mantey, a Software Engineer based in Accra, Ghana. I have over 7 years of experience and I'm experienced with all stages of the software development life cycle.

About

I am an XR developer and software engineer from Accra, Ghana, turning bold ideas into immersive realities for over 7 years. As one of the early pioneers of XR in Ghana and Africa since 2016, I’ve been obsessed with pushing what’s possible in virtual, augmented, and mixed reality. I started out building games in Unity and C#, then quickly moved into crafting XR experiences for education, training, and real-time collaboration where impact meets innovation. As Co-Founder and CTO of Relu Interactives, I lead teams building next-gen spatial computing solutions and multi-user XR platforms that help people learn, work, and connect in entirely new ways. My toolkit spans Unity3D (7+ years), XR SDKs (Meta Quest, Apple Vision Pro), WebXR, and full-stack development (React, Node.js, Python) powered by modern cloud infrastructure. I’m especially excited about the intersection of XR, education, and collaboration designing systems that don’t just look futuristic, but actually solve real-world problems. I regularly share insights through technical writing, workshops, and research-driven collaborations, always exploring the next frontier in immersive computing.

Achievements & Recognition

National awards and industry recognition highlighting innovation and impact in XR development

National Award

2023 NEIP Presidential Pitch Winner

National Entrepreneurship & Innovation Programme (NEIP), Ghana

My startup (Relu Interactives) won the prestigious Presidential Pitch competition, demonstrating exceptional innovation in XR technology and spatial computing solutions. This national recognition validates our pioneering work in bringing immersive technologies to African markets.

Industry Award

Ghana Innovation & Startup Award 2023

Animation/Gaming Startup of the Year - Relu Interactives

Recognized as the leading animation and gaming startup in Ghana for 2023. This award highlights our company's innovative approach to XR development, real-time collaboration platforms, and our contribution to advancing the XR ecosystem in Africa.

Work History

A brief overview of my career so far. Am experienced with all stages of the software development cycle with a lot of diversity.

Contact Me

September, 2022 - Present

Co-Founder / CTO

Relu Interactives - Co-Founder / CTO

Led the development of cutting-edge XR, simulation, and game projects across AR, VR, and WebXR platforms. Directed cross-functional teams to build immersive experiences, digital twins, and interactive training simulations. Architected scalable backend systems, integrated XR SDKs, and ensured high-quality interactions/experiences. Managed projects with Agile methodologies, provided team training, and fostered a culture of innovation and tech adoption.

April, 2023 - March, 2025

Software Engineer

Think-IT - Software Engineer

Contributed to the development of scalable, AI-integrated software solutions for mission-driven organizations. Architected and built large-scale applications using modern web and backend technologies. Integrated third-party services, ensured system performance, and leveraged generative AI and LLMs. Wrote detailed tests and documentation while supporting initiatives in climate tech, health tech, and frontier technologies.

July, 2024 - February, 2025

Fullstack Engineer / AI Software Developer

Zenjob - AI & Automation / Fullstack Engineer

Led the development and integration of AI-powered solutions to improve business operations. Collaborated with multiple departments to identify opportunities for AI, developed and deployed solutions using OpenAI, LangChain, Huggingface, and integrated them into product workflows. Supported internal teams, automated routine tasks, and contributed to predictive analytics to reduce operational risk.

September, 2021 - April, 2024

Freelance Software Engineer

Andela - Contract Developer

Worked on multiple freelance projects involving Web 3D, game development, and fullstack applications. Built and ported Web 3D games for crypto and Telegram platforms. Fixed bugs, resolved scaling issues, and collaborated with teams to integrate server-side logic. Also contributed to large web applications using modern frameworks and technologies.

September, 2020 - April, 2023

Software Engineer (Fullstack)

EncodevLabs - Software Engineer

Worked on various software applications for clients and was involved in the full development cycle, from software architecture, to planning, implementation, design, and deployment. Also maintained various software project and worked on payment systems.

September, 2019 - August, 2020

AR / VR Developer and Researcher

Soko Aerial Signal Training School - VR/AR Developer

Creating military experiences for training new recruits and enhancing military training through AR and VR. I used the unity game engine, blender and other relevant sdks as my primary tools.

May, 2019 - August, 2019