Aleksandar Kuzmanovic — Full-Stack Developer & SEO Specialist

Aleksandar Kuzmanovic

Full-Stack Developer  ·  Performance Engineer  ·  GEO/SEO Expert

I build high-performance, scalable solutions focused on lasting impact. I prioritize long-term outcomes and consistently deliver exceptional results.

Aleksandar Kuzmanovic is a full-stack developer, performance engineer, and GEO/SEO expert with over 12 years in IT. His goal is to help your business achieve success in its online presence. He achieves this by combining technical and marketing expertise to create results-oriented IT solutions.

GitHubLinkedIn
2566%Organic traffic growthin 8 months
<1sPage load timeSerbia's fastest
+200%eCommerce liftconversions rebuilt
12+ yearsProgramming6 years work experience
Selected Work

Architected with precision.
Built for scale.

A selection of mission-critical systems, distributed commerce architectures, and autonomous AI engines built with Next.js, modern cloud infrastructure, and benchmark performance.

ai-code-reviewer---enterprise-git-intelligence-platform.sys
CASE 01
AI Code Reviewer interactive review report interface
01Enterprise AI · Distributed Systems · Next.js 16 · Developer Tooling

AI Code Reviewer — Enterprise Git Intelligence Platform

Built with Next.js 16 (App Router + Turbopack), React 19, TypeScript, PostgreSQL (Prisma), BullMQ & Redis, and Tailwind CSS v4. Features automated PR reviews via cryptographic GitHub App webhooks, native VS Code extension and zero-dependency CLI developer tools, in-dashboard multi-provider PR browsing, dual-depth engineering perspectives (Balanced vs. Maximum DSA/Big-O analysis), two-tier Redis caching, multi-tenant team quality dashboards, and fail-closed repository access control.

Next.js 16React 19TypeScriptPostgreSQL (Prisma)BullMQ & RedisVS Code ExtensionDeveloper CLI (cr)GitHub App APITailwind CSS v4
Explore Case Study→Source↗
datapulse---governed-text-to-sql-intelligence-layer.sys
CASE 02
DATAPULSE // GOVERNED SMQ ARCHITECTUREAWS BEDROCK + DYNAMODB + S3
Natural Language Question

"Show quarterly enterprise revenue and churn rate broken down by customer tier with active contracts."

DETERMINISTIC SMQ COMPILER ──▶ SQL AST✓ Row-Level Security (RLS) Enforced
SELECT tier, SUM(mrr) AS rev, AVG(churn_risk) AS risk
FROM cube.customer_metrics
WHERE tenant_id = 'tenant_091a' /* AST-Injected RLS */
GROUP BY tier ORDER BY rev DESC;
Output: Table + Vega-Lite Chart + NarrativeHash-Chained Audit Log VerifiedP95: 742ms
02AI Engineering · Cloud Architecture · AWS

DataPulse — Governed Text-to-SQL Intelligence Layer

Accuracy and enterprise trust in Text-to-SQL are not solved by a larger model. DataPulse removes the LLM from SQL construction, security, and validation — utilizing the model strictly for natural language understanding while delegating execution to a deterministic compiler, AST policy governor, and cryptographic audit log.

AWS BedrockFastAPIPythonPostgreSQLCube.jsDynamoDBAmazon S3DockerNext.js
Explore Case Study→Source↗
wood-play.vercel.app/sr
CASE 03
Wood Play handcrafted wooden games, rental hub and FAMILI LMS platform
03Next.js 16 · Embedded Payload CMS 3 · 7-Language i18n · Turso

Wood Play — Handcrafted Games, Rental & Educational Platform

Engineered an all-in-one digital platform with Next.js 16 App Router and embedded Payload CMS 3. Unites an artisanal wooden games shop, a 21+ event game rental hub, the FAMILI educational LMS with video courses, and an interactive 4-dimension family assessment engine—fully optimized with complete Generative Engine Optimization (GEO) and technical SEO for Google AI Overviews, ChatGPT Search, and Perplexity across 7 languages (sr, en, de, ru, es, zh, ja) with Turso libSQL and a zero-downtime static fallback layer.

Next.js 16React 19Payload CMS 3Turso (libSQL)TypeScriptComplete GEOTailwind CSS v4next-intl
Explore Case Study→Live System↗
etarskaikozmetickaulja.rs
CASE 04
Medical Pharm category-dominant organic search transformation and Google performance metrics
04Enterprise Technical SEO & Complete GEO · Organic Dominance · Pharmacy

Medical Pharm — Category-Dominant SEO Transformation

Engineered an organic search and generative discovery transformation for a specialized herbal & cosmetic pharmacy, capturing category dominance through technical SEO and complete Generative Engine Optimization (GEO), driving +2566% organic traffic growth in 8 months.

Technical SEOComplete GEOSchema.org JSON-LDGoogle Search ConsoleCore Web VitalsInformation ArchitectureAhrefs
Explore Case Study→Live System↗
Proven Results

Aleksandar Kuzmanovic has achieved significant results for clients. He helped a pharmacy company dominate the online market and also achieved sub-1-second load times for many IT solutions. He has proven his expertise in creating result-oriented IT solutions, making him a rare asset in the tech market. His goal is to help your business succeed.

Not features.
Outcomes.

2566%Serbian Pharmacy · SEO

Organic traffic growth in 8 months

Technical SEO audit, on-page optimisation, and targeted keyword content strategy rebuilt the digital presence of a Serbian pharmacy from near-zero visibility to category dominance.

Technical SEOOn-Page OptimisationContent Strategy
<1sAutomotive eCommerce · Next.js + Django

Serbia's fastest automotive eCommerce

Full-stack Next.js + Django eCommerce platform engineered for sub-one-second load times. Core Web Vitals: green across every metric. Performance is the product.

Next.jsPerformance EngineeringCore Web VitalsDjango
900%Home Goods Retailer · Full-Stack + SEO

Traffic growth + 200% eCommerce lift

Complete site rebuild with new architecture, UX restructure, and end-to-end SEO implementation for a home goods retailer. Organic traffic and conversion both followed immediately.

Full-StackeCommerceSEOUX Architecture
About

About Aleksandar Kuzmanovic: He is an expert in full-stack development, performance, and GEO/SEO. His vision combines development, marketing, and business to give your business online success. He has a B.Sc. in Computer Science and over 12 years of programming experience.

Where strategy
meets architecture.

I'm Aleksandar Kuzmanovic — an expert in creating high-performance and scalable solutions. I'm a full-stack developer, performance engineer, and GEO/SEO specialist. I see IT solutions as an asset that attracts the right customers to your business.

I've been programming since I was 12, building applications that are scalable, performant, and optimized. Whether it's web application development, performance optimization, or GEO/SEO, I always deliver exceptional results.

My goal is to help you solve any technical or GEO/SEO challenge you might face. I hold a B.Sc. in Computer Science and have 12+ years of programming experience, with 6 years of professional work experience. I provide services to clients across various industries with a focus on long-term results.

At a Glance
DegreeB.Sc. Computer Science
SpecialityFull-Stack Development · Performance · GEO/SEO
StackNext.js · React · Node.js · Django · TypeScript
LocationBelgrade, Serbia
AvailabilityOpen to full-time and freelance engagements
GitHub ↗LinkedIn ↗Portfolio ↗
Get In Touch

Ready to build
something exceptional?

Available for new projects

I build things that perform — for search engines, for users, and for your bottom line.

If you need a high-quality IT solution, performance optimization, or an SEO strategy, reach out and let's discuss your project.

Send a MessageLinkedIn ↗
Emailaleksandarkuzmanovic02@gmail.com
GitHubgithub.com/Kuzma02
LinkedIn/aleksandar-kuzmanovic-kuzma
LocationBelgrade, Serbia
ResponseWithin 24 hours