ZAGREB
✦ SENIOR SOFTVERSKI INŽENJER ✦ ZAGREB ✦ 8+ GODINA ISKUSTVA

Umer Malik Freelance Softverski Inženjer - Zagreb

Izravno softversko inženjerstvo, 3D WebGL sučelja i AI automatizacija za tvrtke u Croatia. Bez posredničkih agencija — izravna isporuka koda uz 100% prijenos intelektualnog vlasništva.

8+
Years Direct Experience
150+
Live Platforms Built
97+
Avg. Google PageSpeed
Start a Project → View Our Work →
SERVICES
✦ USLUGE ✦ ZAGREB ✦ UMER XPERT

Ključne Inženjerske Discipline

16 specijaliziranih softverskih usluga razvijenih za poslovanje u Zagreb i Croatia.

Direct Answer: Umer Malik delivers 16 full-stack software engineering disciplines tailored for Croatia businesses, encompassing custom web application development, headless Shopify e-commerce, native iOS/Android mobile apps, high-throughput REST/GraphQL APIs, cloud DevOps orchestration, and enterprise AI automations. Every discipline is executed using modern engineering standards, sub-200ms server response benchmarks, and strict OWASP Top 10 security protocols.

01
Production Architecture
Prilagođeni Web Razvoj & Portali

Skalabilne web platforme razvijene za tržište u Croatia. Vlastiti CMS, REST API, odziv ispod 200 ms i vrhunska sigurnost.

Pogledaj uslugu
02
High-Velocity Checkout
Shopify & E-Commerce Sustavi

Headless trgovine i prilagođena Shopify rješenja s trenutnim učitavanjem koja povećavaju prodaju u Croatia.

Pogledaj uslugu
03
Native iOS & Android
Razvoj iOS & Android Mobilnih Aplikacija

Nativne mobilne aplikacije za korisnike u Croatia. Izvanmrežni rad, biometrijska autentifikacija i sinkronizacija u stvarnom vremenu.

Pogledaj uslugu
04
AI & LLM Automation
AI Chatboti & Automatizacija Procesa

Pametni GPT-4 asistenti trenirani na podacima vaše tvrtke za korisničku podršku i prodaju 24/7.

Pogledaj uslugu
05
Technical SEO 95+
Tehnički SEO & Optimizacija Brzine

Optimizacija Core Web Vitals i strukturiranih podataka koja tvrtke u Croatia postavlja na prvu stranicu Googlea.

Pogledaj uslugu
06
Plugin-Free Clean Code
Profesionalni WordPress Razvoj

Prilagođeni WordPress bez suvišnih dodataka. Gutenberg blokovi, REST API i izuzetno brzo Redis predmemoriranje.

Pogledaj uslugu
07
OWASP Top 10 Hardened
Web Sigurnost & Sigurnosni Audit

WAF konfiguracija, SSL zaštita, penetracijsko testiranje i potpuna usklađenost s OWASP Top 10 standardima.

Pogledaj uslugu
08
PCI-DSS & Multi-Currency
Integracija Payment Gateway Sustava

PCI-DSS usklađeni tokovi plaćanja s 3D Secure zaštitom i podrškom za više valuta za tvrtke u Croatia.

Pogledaj uslugu
09
REST & GraphQL APIs
Razvoj API-ja & Backend Arhitektura

Skalabilni RESTful i GraphQL API-ji s potpunom OpenAPI dokumentacijom i OAuth2 sigurnošću.

Pogledaj uslugu
10
Zero-Downtime Deployments
Cloud Infrastruktura & DevOps (AWS)

AWS cloud rješenja, Docker kontejneri i automatizirani CI/CD procesi bez prekida u radu.

Pogledaj uslugu
11
Figma to Clean Code
UI/UX Dizajn & Digitalna Sučelja

Besprijekoran prijenos iz Figme u čisti kod s 3D WebGL animacijama za vodeće brendove u Zagreb.

Pogledaj uslugu
12
Workflow Automation
Automatizacija Procesa & Skripte

Prilagođene automatizacijske skripte i AI tokovi koji uklanjaju ponavljajuće zadatke u Croatia.

Pogledaj uslugu
13
SQL & Database Tuning
Arhitektura Baza Podataka & Performanse

Dizajn baza podataka, SQL optimizacija i Redis caching za besprijekorno upravljanje visokim prometom.

Pogledaj uslugu
14
Zero-Downtime Refactoring
Modernizacija Zastarjelih Sustava

Potpuni audit i prepisivanje zastarjelih sustava u moderne mikroarhitekture bez zastoja u poslovanju.

Pogledaj uslugu
15
Speed & UX Optimization
Optimizacija Stope Konverzije (CRO)

UX auditi temeljeni na podacima i odredišne stranice koje promet u Croatia pretvaraju u stvarne prihode.

Pogledaj uslugu
16
100% IP Transfer under NDA
White-Label Razvoj Softvera

Čisti kod razvijen pod ugovorom o tajnosti (NDA) uz 100% prijenos izvornog koda i autorskih prava.

Pogledaj uslugu
ALLIANCE
✦ POVJERENJE I INŽENJERSKA IZVRSNOST

Bespogovorna Predanost Kvaliteti

Izbjegnite agencijsku birokraciju. Surađujete izravno sa senior inženjerom od prvog dana.

Direct Answer: Hiring a direct senior software engineer provides direct access to the engineer executing your code, eliminating 40%–60% agency management markups, communication bottlenecks, and junior developer delegation. You receive faster sprint delivery, daily Git commits to your private repo, and 100% intellectual property ownership under signed NDA.

What is a Freelance Software Engineer? A freelance software engineer is an independent technical specialist who contracts directly with clients to design, engineer, and deploy production software systems without agency middlemen, account managers, or hidden markups.

Engineering BenchmarkUmer Malik (Direct Senior Engineer)Traditional Digital Agency
Architect CommunicationDirect 1-on-1 access to lead engineer via Slack / GitHub / VideoLayered communication through sales reps and junior account managers
Code Authorship & Talent8+ years veteran engineer authoring every commit and architecture decisionOften pitched by senior leads, then delegated to junior or outsourced coders
Speed & Sprint VelocityRapid 14-to-28 day milestone sprints with continuous staging delivery3 to 6 month protracted timelines due to agency bureaucracy and overhead
Pricing & Cost TransparencyGuaranteed fixed milestone pricing with 0% middleman markups40%–60% markups applied to cover agency offices, sales staff, and overhead
Code Sovereignty & IP100% IP ownership transferred upon milestone completion under signed NDAFrequent IP retention, proprietary CMS lock-in, or ongoing maintenance licenses
Performance & Standards95+ PageSpeed, sub-200ms API latency, W3C & OWASP complianceBloated multi-purpose themes, generic plugins, and sluggish database queries
REGISTRY
✦ DOKAZANI REZULTATI

Dokazani Digitalni Uspjesi

Stvarne studije slučaja gdje je inženjerska preciznost ubrzala poslovne ciljeve u Croatia.

Direct Answer: The case studies below represent production architectures developed by Umer Malik across Croatia and global enterprise markets. These include interactive 3D WebGL proptech showcases, zero-trust fintech verification pipelines, headless Shopify storefronts, and high-velocity fleet dispatch APIs engineered for enterprise fault tolerance.

PROPTECH ✦ INTERACTIVE 3D

Zagreb 3D Property Showcase Platform

Custom WebGL 3D property map engine and interactive tour interface built for high-end developments with 60 FPS mobile responsiveness and seamless viewport rendering.

FINTECH ✦ ZERO-TRUST LEDGER

Transaction Audit & Verification Engine

Automated KYC verification and high-concurrency transaction audit pipeline utilizing private VPC subnets and indexed SQL architecture for low-latency settlement.

COMMERCE ✦ HEADLESS RETAIL

Headless Storefront for High-SKU Catalog

Decoupled e-commerce architecture leveraging Shopify Storefront API and server-side rendering to eliminate theme bloat and deliver instantaneous page transitions.

LOGISTICS ✦ HIGH-VELOCITY API

Real-Time Fleet Routing & Dispatch System

High-throughput dispatch API with Redis in-memory message queues and geospatial querying to handle live vehicle positioning without database lock-ups.

PROCESS
✦ WORKFLOW ✦ AGILE PROCESS ✦ 3 STEPS

Digitalna Arhitektura Visokih Performansi

U Zagreb i diljem Croatia gradimo moderna sučelja podržana stabilnom infrastrukturom.

Direct Answer: The direct-hire software engineering process consists of three rigorous agile phases: 1) Technical Discovery & Architecture Blueprint within 48 hours, 2) Sprint-Based Agile Engineering with daily Git commits and staging reviews over 2–4 weeks, and 3) Production Deployment, OWASP Security Hardening, and complete 100% IP and credential handover under signed NDA.

PHASE 01 ✦ 48 HOURS

1. Architecture Blueprint & Scope

Direct 1-on-1 technical discovery to define data models, API schemas, security requirements, and system infrastructure. You receive a comprehensive technical proposal with fixed milestone pricing and sprint deliverables.

PHASE 02 ✦ SPRINT CYCLES

2. Agile Engineering & Daily Git Commits

Modular test-driven development (TDD) with daily commits pushed directly to your private GitHub/GitLab repository. Staging builds are deployed continuously for real-time stakeholder review and feedback.

PHASE 03 ✦ LAUNCH & IP HANDOVER

3. Production Hardening & 100% IP Transfer

Comprehensive OWASP Top 10 penetration auditing, W3C validation, SSL/TLS configuration, and DNS cutover. Upon milestone sign-off, all admin credentials, database assets, and 100% IP rights are transferred to you under signed NDA.

SECURITY
✦ 100% PRIJENOS IP PRAVA

Sigurnost i Potpuni Prijenos Izvornog Koda

Razvijeno pod strogim NDA ugovorom uz potpuni prijenos vlasništva nad kodom i pristupima klijentu.

Direct Answer: Code security and intellectual property protection are enforced through strict contractual non-disclosure agreements (NDAs), encrypted private code repositories, automated static security analysis (SAST), and full architectural alignment with international standards including OWASP Top 10, W3C semantic specifications, and ISO/IEC 27001 data protection principles.

Potpuno u skladu sa standardima GDPR Compliant i smješteno na infrastrukturi AWS Global.

✦ W3C WEB STANDARDS

Semantic HTML5 markup, strict accessibility (WCAG 2.1 AA), responsive layouts, and cross-browser ECMAScript standards verified by official W3C validation.

✦ OWASP TOP 10 DEFENSE

Proactive protection against SQL injection, XSS vulnerabilities, broken authentication, SSRF, and sensitive data exposure with CSP and HSTS headers.

✦ ISO/IEC 27001 ALIGNMENT

Enterprise data protection practices, AES-256 encryption for data at rest, TLS 1.3 transport security, and isolated environment management.

✦ Croatia JURISDICTION & IP

Fully compliant with GDPR Compliant guidelines. All source code, database architectures, and keys transfer 100% to your company under signed NDA.

✦ AUTHORITATIVE DATA SOURCES & INDUSTRY BENCHMARKS
Eurostat Digital Economy & Society Insights Official economic intelligence on software enterprise adoption and cloud microservices. Source Link
ISO/IEC 27001 Information Security International standard for information security management and data protection. Source Link
W3C Semantic Web Standards Official World Wide Web Consortium specifications for structured data and accessibility. Source Link
Google Search Central (2024) Official Core Web Vitals guidelines: LCP < 2.5s, INP < 200ms, CLS < 0.1 for top ranking. web.dev/vitals
FAQS
✦ FAQS ✦ ZAGREB ✦ DIRECT ANSWERS

What Are the Frequently Asked Questions About Software Engineering in Zagreb?

Clear, verified answers covering project pricing, technology stacks, IP protection, and onboarding timelines.

Direct Answer: Below are authoritative answers to key commercial, technical, and operational questions regarding direct-hire software engineering services with Umer Malik across Zagreb and Croatia.

How to hire a freelance software engineer in Zagreb, Croatia?

Hiring a freelance software engineer is simple: 1) Define your functional requirements, timeline, and milestone budget. 2) Submit your project details via the contact form for a free 24-hour technical assessment. 3) Align on milestone deliverables, sprint schedules, and signed NDA terms. 4) Engineering begins immediately with daily Git commits and staging updates.

How much does it cost to hire a freelance software engineer in Zagreb, Croatia?

Pricing is transparent and milestone-based with 0% agency markup. Representative ranges: landing page & brochure platforms $1,500 – $3,500; e-commerce stores with Stripe $3,500 – $8,500; custom SaaS web applications $8,500 – $25,000+; native mobile applications $7,500 – $22,000; AI automation & chatbots $4,000 – $12,000. All deliverables include complete 100% IP transfer.

Should I hire a freelance software engineer or a software agency in Croatia?

For startups and growing enterprises needing 1–4 senior engineers, hiring directly eliminates 40%–60% agency overhead, removes project coordinator bottlenecks, and ensures you speak directly with the engineer authoring your code. Agencies are suitable only for massive enterprise teams requiring 10+ simultaneous generalists.

How does Stripe payment gateway integration work?

Integration connects your platform directly to the official merchant APIs of Stripe. Features include: native checkout flows, debit/credit card processing, instant payment confirmation webhooks, automated transaction reconciliation, and sandbox-to-production testing.

What technologies and frameworks does Umer Malik specialize in?

Primary engineering stacks include: Backend (PHP 8+, Laravel, Node.js, Python FastAPI); Frontend (React, Next.js, Vue.js, Three.js/WebGL); Mobile (React Native for iOS and Android); Databases (PostgreSQL, MySQL, Redis); E-Commerce (Headless Shopify Storefront API, WooCommerce); and Cloud (AWS ap-south-1, Docker, CI/CD).

Who owns the source code and intellectual property once development is completed?

You retain 100% intellectual property ownership of all source code, database architectures, digital assets, and documentation. All engineering is conducted under signed Non-Disclosure Agreements (NDA), and full ownership is transferred along with Git repository permissions upon milestone sign-off.

CONNECT

Initiate Project Briefing

Bypass sales layers. Register your project parameters directly in our local telemetry system.

TARGET BUDGET
PROJECT SCOPE
SEND REQUEST

Select target project budget:

$1K–3K
STARTER
$3K–10K
PROFESSIONAL
$10K–30K
ENTERPRISE
$30K+
LARGE SCALE

✦ REGIONAL OPERATIONS / STATES WE SERVE ✦

City of Zagreb Split-Dalmatia Primorje-Gorski Kotar
✦ ABOUT ME ✦ PROJECT LOGS ✦ CLIENT REVIEWS ✦ ACCORDION FAQ ✦ CONTACT SQUAD ✦ PRIVACY ✦ TERMS

© 2026 UMER XPERT. ENGINEERED DIRECTLY IN DUBAI, UAE. ALL RIGHTS RESERVED.

Privacy Policy Terms of Service