Nikola M.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

As a Master Engineer (Faculty of Electrical Engineering, Serbia), I bridge the gap between complex system architecture and high-velocity product delivery. With over 10 years in the industry, I specialize in building robust, scalable software from the ground up, ensuring every layer—from the database to the interface—is engineered for performance. 🚀 Elixir & System Architecture For the past 8 years, I have focused on the Elixir/Phoenix ecosystem. I design and implement software architectures from zero, leveraging OTP and distributed patterns to build fault-tolerant systems. My approach is rooted in engineering precision, focusing on clean design and long-term maintainability. 🗄️ Database & Performance I bring deep expertise in PostgreSQL, specifically in architecting schemas for complex data relationships. My strength lies in writing highly optimized queries and fine-tuning database performance to ensure your application stays fast, even under heavy concurrent loads. 🌐 Proven Delivery (WordPress & Beyond) Beyond high-level backend architecture, I have a proven track record of shipping products. I have built and deployed over 50 custom WordPress sites, ranging from high-traffic portals to complex WooCommerce integrations. This experience has given me a unique perspective on user-centric design and the ability to build custom PHP/JavaScript solutions and plugins that solve specific business needs.