RIO DE JANEIRO
✦ 🇧🇷 FREELANCE SOFTWARE ENGINEER ✦ RIO DE JANEIRO

Umer Malik in Rio de Janeiro, Rio de Janeiro State

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

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SERVICES
✦ SERVICES ✦ RIO DE JANEIRO ✦ UMER XPERT

Engineering Services in Rio de Janeiro, Rio de Janeiro State

Custom software development services available in Rio de Janeiro, Rio de Janeiro State. Direct hire, fixed pricing, and full IP transfer on every project.

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

Best Software Engineer in Rio de Janeiro, Rio de Janeiro State

When Rio de Janeiro, Rio de Janeiro 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 Rio de Janeiro

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

Best Mobile App Developer in Rio de Janeiro

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

Best Shopify Developer in Rio de Janeiro

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

Best AI Developer in Rio de Janeiro

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

Best WordPress Developer in Rio de Janeiro

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

Best SEO Expert in Rio de Janeiro

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

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FAQ
✦ RIO DE JANEIRO FAQ ✦ FREQUENTLY ASKED

Rio de Janeiro Developer FAQ (Rio de Janeiro State)

Common questions from Rio de Janeiro, Rio de Janeiro State businesses looking to hire a senior software engineer.

How do I hire a software engineer in Rio de Janeiro?
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 Rio de Janeiro?
Web development, mobile apps, e-commerce, WordPress, AI/ML integrations, API development, DevOps, and technical audits. All services available across Rio de Janeiro and greater Brazil.
What does it cost to hire a freelance developer in Rio de Janeiro?
Fixed-price or milestone-based. Contact for a free technical scoping and price estimate for your specific project.
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BRL 3K–10K
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BRL 10K–30K
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BRL 30K–90K
ENTERPRISE
BRL 90K+
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✦ REGIONAL OPERATIONS / STATES WE SERVE ✦

São Paulo State Rio de Janeiro State Minas Gerais Federal District (Brazil) Rio Grande do Sul Bahia
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