CAMPINAS
✦ 🇧🇷 FREELANCE SOFTWARE ENGINEER ✦ CAMPINAS

Umer Malik in Campinas, São Paulo State

Direct software engineering for Campinas, São Paulo State businesses. Web development, mobile apps, AI, Shopify, and custom systems — built by a single senior engineer, no agency overhead.

FASTEST RESPONSE
WhatsApp Umer Malik
Reply within hours
PROJECT BRIEF
Send a Message
Detailed project form
SERVICES
✦ SERVICES ✦ CAMPINAS ✦ UMER XPERT

Engineering Services in Campinas, São Paulo State

Custom software development services available in Campinas, São Paulo State. Direct hire, fixed pricing, and full IP transfer on every project.

common.view_service
Custom Web & Portal Development
High-throughput, scalable web platforms built for the market in Campinas. Custom CMS, REST APIs, sub-200ms TTFB, full security.
Start a Project →
common.view_service
Shopify & E-Commerce Engineering
Headless storefronts and bespoke Shopify architectures built for lightning speeds and conversion in Campinas.
Start a Project →
common.view_service
iOS & Android Mobile App Dev
Native mobile applications for users in Campinas. Offline-first architecture, biometric auth, and real-time syncing.
Start a Project →
common.view_service
AI Chatbots & Workflow Automation
GPT-4 powered intelligent agents fine-tuned on company data for 24/7 customer service and sales automation.
Start a Project →
common.view_service
Technical SEO & Web Speed Optimization
Core Web Vitals tuning and structured schema architecture pushing businesses in Campinas to Page 1.
Start a Project →
common.view_service
Plugin-Free WordPress Engineering
Bespoke, bloat-free WordPress architectures. Custom Gutenberg blocks, REST API endpoints, and Redis caching.
Start a Project →
common.view_service
Web Security & Penetration Testing
WAF configuration, SSL hardening, penetration testing, and full compliance with OWASP Top 10 standards.
Start a Project →
common.view_service
Payment Gateway Engineering
PCI-DSS compliant checkouts with 3D Secure and multi-currency support for businesses in Campinas.
Start a Project →
common.view_service
API Development & Backend Systems
High-throughput RESTful and GraphQL APIs with complete OpenAPI documentation and OAuth2 security.
Start a Project →
common.view_service
AWS Cloud Infrastructure & DevOps
AWS cloud architectures, Docker containerization, and automated CI/CD deployment pipelines with zero downtime.
Start a Project →
common.view_service
UI/UX Design & 3D WebGL Interfaces
Pixel-perfect translation from Figma to clean code with 3D WebGL animations for leading brands in Brazil.
Start a Project →
common.view_service
Workflow Automation & Custom Scripting
Custom automation scripts and AI pipelines eliminating repetitive manual tasks for companies in Campinas.
Start a Project →
common.view_service
Database Architecture & Tuning
Database design, SQL query tuning, and Redis caching layers engineered to handle massive concurrent traffic.
Start a Project →
common.view_service
Legacy System Modernization
Audit and re-architect legacy codebases into modern microservices with zero downtime and zero data loss.
Start a Project →
common.view_service
Conversion Rate Optimization (CRO)
Data-driven UX audits and landing pages turning digital traffic in Campinas into measurable, profitable revenue.
Start a Project →
common.view_service
White-Label Software Engineering
Clean-code engineering under NDA with 100% transfer of source code, repository, and intellectual property.
Start a Project →
Start a Project →
BEST
✦ BEST IN CAMPINAS ✦ TOP-RATED ENGINEER

Best Software Engineer in Campinas, São Paulo State

When Campinas, São Paulo State businesses search for the best developer, they find one person who actually answers — Umer Malik. Direct hire, no agency chain, every project owned and delivered personally.

Best Web Developer in Campinas

Looking for the best web developer in Campinas? Umer Malik builds fast, mobile-first websites and web applications that rank on Google and convert visitors into customers.

Best Mobile App Developer in Campinas

Need the best mobile app developer in Campinas? Umer Malik delivers iOS and Android apps with native performance and app store-ready builds.

Best Shopify Developer in Campinas

Get a high-converting online store built from scratch — custom theme, payment gateways, and performance optimisation.

Best AI Developer in Campinas

Umer Malik has delivered LLM-powered tools, intelligent chatbots, and AI automation systems for enterprise clients.

Best WordPress Developer in Campinas

Custom WordPress themes, plugins, and headless CMS setups that are fast, secure, and SEO-optimised.

Best SEO Expert in Campinas

Technical SEO audits, Core Web Vitals optimisation, and local SEO strategies that get businesses ranking on page one.

Start a Project →
FAQ
✦ CAMPINAS FAQ ✦ FREQUENTLY ASKED

Campinas Developer FAQ (São Paulo State)

Common questions from Campinas, São Paulo State businesses looking to hire a senior software engineer.

How do I hire a software engineer in Campinas?
Contact Umer Malik directly at Umer Xpert. No agencies.you work with a senior engineer from day one. Response within 24 hours.
What services does Umer Xpert offer in Campinas?
Web development, mobile apps, e-commerce, WordPress, AI/ML integrations, API development, DevOps, and technical audits. All services available across Campinas and greater Brazil.
What does it cost to hire a freelance developer in Campinas?
Fixed-price or milestone-based. Contact for a free technical scoping and price estimate for your specific project.
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:

BRL 3K–10K
STARTER
BRL 10K–30K
PROFESSIONAL
BRL 30K–90K
ENTERPRISE
BRL 90K+
LARGE SCALE

✦ REGIONAL OPERATIONS / STATES WE SERVE ✦

São Paulo State Rio de Janeiro State Minas Gerais Federal District (Brazil) Rio Grande do Sul Bahia
✦ ABOUT ME ✦ PROJECT LOGS ✦ CLIENT REVIEWS ✦ ACCORDION FAQ ✦ CONTACT SQUAD

© 2026 UMER XPERT. AO SERVIÇO DO BRASIL — SÃO PAULO ✦ RIO ✦ BRASÍLIA. ALL RIGHTS RESERVED.