architecting distributed systems
Senior Backend Engineer
Backend engineer with 9+ years of experience designing and building scalable, production-grade systems across fintech and enterprise environments.
Designing and operating production-grade backend systems.
Reduced database load in high-traffic services.
Production systems in Java, Python, and Go.
Architected full-stack platform from concept to production.
End-to-end feature development in regulated environments.
Design, implementation, deployment, and monitoring.
Designing and implementing scalable microservices with RESTful APIs, event-driven systems, and distributed architecture patterns.
Building production-grade infrastructure on AWS and GCP with Docker, Kubernetes, and modern CI/CD pipelines.
Performance tuning, database query optimization, and monitoring solutions with Grafana, Sentry, and distributed tracing.
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
Founded and architected a full-stack SaaS platform for SEO analytics and rank tracking. Led all architectural decisions, infrastructure setup, and product development from concept to production deployment.
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 solutions that scale beyond immediate requirements.
Building production systems with failure scenarios in mind.
Distributed systems require defensive architecture and observability.
Technical choices impact long-term maintainability and performance.
Clear communication and structured problem-solving in cross-functional teams.
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.
