Cornelius John | CJ

Fullstack Developer with with 9+ years of experience passionate about React⚡, Web Development, AI technology, Content Creation, Graphic Design and helping small/medium scale businesses grow.
I love bringing digital projects to life. 🚀☕

About me

My Beginnings in Tech 🖥️

My journey into programming started with curiosity and persistence. What began as experimenting with code quickly became a discipline, late nights debugging, building small tools, and learning how technology could solve real problems.

Programming wasn’t just a skill; it became a way of thinking and creating.

When we got our first computer at home, around 2010, I spent all my time there, creating my own graphic designs. For this, I learned to use Corel Draw and later Photoshop.

A couple of years later, knowing that programming is needed to create video games 🎮, I researched a bit and created my first website with HTML 4 and CSS3. It was a static page, clearly not responsive, and its design and content were very poor, but I felt very proud seeing my page working online.

Sharing Knowledge 🧠

As my skills evolved, so did my responsibility to give back. I began sharing what I learned, simplifying complex ideas, collaborating openly, and contributing to teams beyond just deliverables. Teaching clarified my own thinking and reinforced a core belief: knowledge grows when it’s shared. This elevated projects, strengthened teams, and turned individual wins into collective momentum.

Mentorship 💻

Mentorship naturally followed. Guiding junior developers through real-world projects, helped them think critically about systems, and supported their growth from learners to contributors.

Seeing others progress has been one of the most rewarding parts of my career. Book a session with me here

Helping Businesses Scale with AI 🧠

Over the last few years, I’ve helped small and medium-sized businesses unlock real revenue impact using AI chatbots and AI receptionists. By automating first-touch conversations, appointment booking, and customer follow-ups, I’ve enabled teams to capture more leads, reduce response times, and convert interest into sales without increasing headcount.

My focus is always on practical, ROI-driven AI that integrates seamlessly into existing workflows and delivers measurable business outcomes.

What’s Next… 🚀

Now, I’m focused on building scalable digital products, refining systems, and working with ambitious teams that value quality, performance, and long-term thinking. I’m continually exploring new technologies and pushing the boundaries of what’s possible.

I live with the maker spirit: learning, experimenting, and sometimes causing a bit of chaos. But well, everything is forgiven if there’s music and coffee involved. ☕🎶

Oh! And i prepare good coffee. Seriously, whether it’s to start the day or for a creative session, I have the perfect recipe. I’m also pretty good at chess, so if you ever need a partner for a game night, I’m your person! 🎲

Let’s Create Amazing Things! 💡

If you’re building something ambitious, whether a brand, a platform, or a bold idea. I’m ready to collaborate.

Let’s design, build, and ship work that stands out, scales fast, and delivers impact.

Work Experience

  1. Fullstack Developer

    9JAJAM.COM

    Partnered with a leading African restaurant in Montego Bay to craft a bold digital identity, delivering a new website and logo that elevated the brand’s presence. Led high-impact social design campaigns that boosted visibility by 40%, streamlined multi-project delivery with a growing team, and enhanced customer engagement by 25% through refined branding and user experience.
  2. Senior Frontend Developer

    Zone1 Upholstery and Drapery

    Delivered measurable sales growth by optimizing design workflows and campaign execution, leveraging AI chatbot and AI receptionist integrations to increase conversions and re-activate customer demand through targeted newsletter campaigns.
  3. Laravel Expert

    RESCOPENET.COM

    Helped startups launch faster by building scalable web solutions with modern technologies. Led a team of 10 developers to deliver a compliance automation platform that reduced manual workload by 40%, while developing full-stack applications and high-performance APIs that improved cross-platform data flow.
  4. Senior Graphic Artist

    SIGMAGRAPH.COM.BR

    Provided end-to-end on-demand graphic and branding solutions, delivering premium collateral and mobile visual services to over 50 clients. Played a key role in mentoring junior developers and fostering team growth, while collaborating closely with stakeholders to build secure, scalable software solutions. Strengthened application security using NIST and ISO 27001 best practices, resulting in a 70% reduction in data breach risk.
  5. Social Media Content Creater

    Snips Professional Pet Groomers

    Scaled a professional pet grooming operation through brand refinement, conversion-focused UX, and appointment funnel optimization. Improved customer acquisition efficiency, strengthened local authority, and increased booking velocity through clearer service positioning and trust signals.

Stack Technological

Let's work together.