Senior Backend Consultant for Enterprise Systems

I build, scale, and modernize complex PHP and Node.js applications, turning your biggest technical challenges into reliable, high-performance assets.

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Simo Jakovic

How I Solve Your Problems

Backend API Development

I design and build robust, secure, and well-documented RESTful or GraphQL APIs that power your web and mobile applications, ensuring seamless data flow and integration.

Legacy System Modernization

Trapped by old code? I meticulously audit, refactor, and migrate legacy PHP systems to modern frameworks, reducing technical debt and unlocking new growth opportunities.

Performance & Scalability Audits

If your application is slow or failing under load, I identify and eliminate bottlenecks in your code, database, and infrastructure to ensure it can handle enterprise-scale traffic.

Cloud Architecture & DevOps

I help you leverage the power of the cloud (AWS, GCP) by designing efficient, cost-effective infrastructure and implementing CI/CD pipelines for faster, more reliable deployments.

Direct Expertise, No Overheads

Hi, I'm Simo. For over 15 years, I've been in the trenches with enterprise-level applications for leaders in FinTech, E-commerce, and SaaS. I founded Eternia Solutions to offer a different kind of partnership.

When you work with me, you're not paying for a sales team or project managers. You're getting a dedicated senior partner who is directly invested in your success. My focus is on pragmatic, robust engineering that delivers tangible business value—from enhancing performance to reducing operational costs.

Let's build something great together.

Why Partner With Me?

Direct-to-Expert Collaboration

You work directly with me, the principal engineer. This means clear communication, rapid decision-making, and zero knowledge gaps. Your vision is never lost in translation.

15+ Years of Proven Experience

I bring a decade and a half of hands-on experience solving complex backend problems at scale. You get battle-tested expertise, not theoretical solutions.

Pragmatic & Solution-Oriented

I focus on delivering reliable, maintainable code that solves your business problems efficiently. I prioritize practical results over chasing the latest tech trends.