architecting distributed systems
Senior Backend Engineer
I architect and build scalable, production-grade distributed systems. With 10+ years of backend engineering experience, I specialize in fintech and enterprise environments.
Designing and operating production-grade backend architecture.
Reducing database load in high-traffic services.
Java, Python, and Go in production systems.
Full-stack platforms taken from concept to production.
End-to-end features in strictly regulated environments.
Design, implementation, deployment, and observability.
Scalable RESTful APIs, event-driven systems, and distributed architecture patterns.
AWS and GCP, Docker, Kubernetes, and modern CI/CD pipelines.
Database tuning, distributed tracing, and monitoring with Grafana and Sentry.
Senior Engineer (Backend)
Software Engineer (Backend)
Java Backend Engineer
Software Engineer
Java Engineer
Nemanja took our Webflow site from failing performance to genuinely fast. Mobile Total Blocking Time dropped from around 30 seconds to under 50 milliseconds, and desktop cleared Core Web Vitals. What stood out just as much as the numbers is his honesty: he tells you what actually moves the needle versus what's just chasing a lab score, and flags trade-offs upfront instead of overselling. Deeply knowledgeable on performance and easy to work with over the long haul.
Nemanja handled the technical SEO for Dacast, a large multilingual WordPress site with a complex WPML and CloudFront setup. He works in a methodical way and supports his recommendations with real data. He fixed our canonical coverage so there are no flagged issues, and he added schema across our page templates with no validation errors. His best work was finding the root cause: he traced our hreflang, sitemap, and redirect problems back to one source, the way the CMS was creating old, duplicate multilingual references, and then he rebuilt the setup at the source instead of fixing each page one by one. He explains things clearly at a CEO level and is honest about trade-offs. Reliable and very strong on technical SEO.
Nemanja is a fantastic developer. He does what he says, he moves fast, gets the big picture, and — he's an absolute pleasure to work with.
Multi-Tenant SaaS Platform for SEO Analytics
I architected the entire full-stack environment from scratch, designing it to handle multi-tenant data isolation, usage-based tier limits, and asynchronous task processing. I led every architectural, infrastructure and product decision from concept to production.
People increasingly ask ChatGPT, Perplexity and Google's AI instead of scrolling search results. I help brands get found in those answers through answer engine optimization (AEO), technical SEO, and Core Web Vitals. I also built Rankioz, a platform that tracks which AI answers mention a brand and who gets named instead, so the work is measured, not guessed.
See where AI mentions you today, and which competitors it names instead
Fix what blocks ChatGPT, Perplexity, Gemini and Claude from citing you: crawler access, schema, llms.txt, answer-shaped content
Core Web Vitals and technical SEO, so both Google and AI trust the site
Recent client result: took a B2B SaaS site's mobile Total Blocking Time from around 30 seconds to under 50 milliseconds and cleared all three Core Web Vitals.
Designing for long-term scale and maintainability, not just immediate requirements.
Building production systems with failure scenarios in mind.
Distributed systems are built with failure scenarios and observability in mind.
Technical choices impact long-term maintainability and performance.
Precise communication and structured problem-solving across cross-functional teams.
Lessons from operating infrastructure in high-traffic environments. Thoughts on backend engineering, architecture, and distributed systems.
An open Postgres test bench that scores what an AI agent actually posts to a ledger: balance, closed months, duplicates, plug entries and the human approval. Results for two Claude models, one command to run it yourself.
Many WordPress and Cloudflare sites silently block GPTBot, ClaudeBot and Google-Extended, making them invisible to AI search even when Google can still see them. Here is how to check and fix it.
Entry-level software engineer jobs dropped 67% in one year. Stanford's study confirms AI is replacing junior developers, while senior developer employment grew 9%. Here's what the data actually shows.
