Engineering Leader | Fractional CTO | Technology Advisor

I’m a highly effective engineering leader with deep experience building cloud-scale applications while leading cohesive global teams that consistently deliver and exceed expectations.

I help visionary founders turn bold ideas into scalable software products.

With over 20 years of experience across healthcare, fintech, proptech, and SaaS, I specialize in building secure, scalable systems from the ground up. From MVPs to multi-tenant platforms used by millions, I’ve led engineering teams, architected compliance-ready systems, and developed AI-powered features that drive meaningful business results.

As a fractional CTO, I partner with startups that need more than just code. They need someone who can connect technical execution with product strategy. I bring a combination of hands-on architecture, practical product thinking, and leadership that helps teams move fast with confidence. Whether it's implementing AI systems, scaling cloud infrastructure, improving developer velocity, or ensuring security and compliance, I build systems that are both resilient and adaptable.

Specialties:
✅ Startup Product Development
✅ Scalable SaaS Architecture (JavaScript, C#, Java, Python)
✅ Security & Compliance (HIPAA, NIST, PCI)
✅ AI-Driven Features (NLP, Recommendations, Summarization)
✅ Cross-Functional Leadership (Product, Engineering, Operations)

Let’s build something that matters — from vision to fruition.

Keith Oliver Rull

The goal is to train and work with great and honest people!
My Website : https://eronelit.com
Github / Portfolia : https://github.com/marko9827
My Deviantart profile : https://www.deviantart.com/marko9827
Quantum Computing / Singularity / Future

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The Battle

Keith Oliver Rull

Marko Nikolic

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