Open to Work — Remote · Full-Time · Contract · Freelance

Mark AnthonyRivas

Senior Full-Stack Developer · React · Next.js · Node.js · Web3

Dubai, UAE (GMT+4) · EU overlap 5–9 hrs · US East overlap 8–11 hrs

ReactNext.jsTypeScriptNode.jsSolidityWeb3AWSDocker
// 01 — About Me

Building the web, one layer at a time

Senior full-stack developer with hands-on experience across React, Next.js, Node.js, and Web3 stacks. Comfortable owning features end-to-end — from smart contract integration and API design through to TypeScript front-ends and accessible UI.

10+ years delivering production web, mobile, and e-commerce solutions for global clients across fintech, insurance, blockchain, and enterprise sectors. Currently splitting time between contract Web3 work and front-end consulting.

Strong timezone overlap with EU (5–9 hrs) and US East (8–11 hrs). Available for remote permanent, contract, or freelance engagements.

developer.ts
const developer = {
name: 'Mark Anthony Rivas',
role: 'Senior Full-Stack Dev',
base: 'Dubai, UAE (GMT+4)',
exp: 10,
stack: [
'React', 'Next.js',
'Node.js', 'Solidity',
'TypeScript', 'AWS'
],
available: true
};
Ready for your next project_
50+
Projects
10+
Years Exp
// 02 — Tech Stack

Skills & Expertise

A decade of building with modern stacks — from pixel-perfect frontends to production smart contracts.

⚛️

Frontend

ReactNext.jsTypeScriptReact NativeReduxTailwind CSSHTML5 / CSS3Framer MotionAccessibility
⚙️

Backend

Node.jsExpressREST APIsGraphQLMicroservicesAuthenticationAPI Design
🔗

Web3 & Blockchain

SolidityERC-20 / 721 / 1155Web3.jsEthers.jsWagmi / ViemMetaMaskWalletConnectNFT MarketplacesSmart Contracts
🗄️

Databases

MySQLPostgreSQLMongoDBRedisQuery OptimizationData Modeling
🛒

E-commerce

ShopifyLiquidStorefront APIWooCommerceBuilder.ioPayment GatewaysConversion Optimization
☁️

DevOps & Cloud

AWS (EC2, S3, Lambda)DockerGitHub ActionsVercelCloudflareCI/CD PipelinesPerformance Optimization
// 03 — Portfolio

Selected Work

50+ projects delivered across WordPress, Shopify, React, and Web3 ecosystems.

IPO Genie

Blockchain & Crypto Web3 dApp — wallet integrations, smart contracts, on-chain data APIs

Ongoing
Next.jsSolidityWagmi+5
#web3#react
Live

Squire

Accounting firm corporate website — ongoing CMS & feature development

Ongoing
WordPressACFUnderscore
#wordpress
Live

Squire Technology

Technology division of Squire accounting firm — ongoing development & maintenance

Ongoing
WordPressACFUnderscore
#wordpress
Live

XFlame Casino Platforms

Enterprise casino suite — 6 live web platforms + React Native mobile app with shared component library

240d
Next.jsReact NativeTypeScript+1
#react#mobile
Live

Curate Health

Healthcare services platform with modern UI and full TypeScript codebase

60d
Next.jsTypeScriptTailwind CSS
#react
Live

BSLUXURY

Premium luxury ecommerce — Redux state management, full API integration

60d
ReactTypeScriptTailwind+2
#react
Live

Brümate

High-converting Shopify ecommerce store with custom Builder.io sections

15d
ShopifyBuilder.io
#shopify
Live

VOZ

Fashion ecommerce site — custom Shopify theme with Builder.io visual editor

15d
ShopifyBuilder.io
#shopify
Live

TexTrades

Service & informative website with React component architecture

30d
ReactTailwind CSSBootstrap
#react
Live

Weaver Protection

Service website for security firm — React + Tailwind responsive build

15d
ReactTailwind CSSBootstrap
#react
Live

Rembrandt Charms

Full custom WooCommerce ecommerce build — complex product catalog

30d
WordPressElementorWpForms
#wordpress
Live

Friendship Circle NJ

Large-scale non-profit service website — events, programs, donations

60d
WordPressElementorWpForms
#wordpress
Live

Mission Critical Group

Power & electric services corporate website — custom ACF-driven architecture

20d
WordPressACFUnderscore
#wordpress
Live

Fifth Element Academy

Training academy informative site — hand-crafted HTML/CSS/JS

20d
HTMLCSSJavaScript
#react
Live

DWC Creative

Creative agency digital presence with custom Elementor design system

30d
WordPressElementorWpForms
#wordpress
Live

RH Tax Services

Tax services firm website — ACF custom fields, underscore theme

15d
WordPressACFUnderscore
#wordpress
Live

Kesse PLLC

Professional services informative website — clean, conversion-focused

15d
WordPressElementorWpForms
#wordpress
Live

Our HQ

Workspace service & informative site — pixel-perfect Elementor build

10d
WordPressElementorWpForms
#wordpress
Live

Package Pros

Packaging services company website with lead gen forms

15d
WordPressElementorWpForms
#wordpress
Live

Quality Load

Freight & logistics services website — fast, mobile-first build

10d
WordPressElementorWpForms
#wordpress
Live

Mababeauty

Beauty services informative site with booking integration

10d
WordPressElementorWpForms
#wordpress
Live

K. Davis Designs

Creative design studio website — portfolio showcase

10d
WordPressElementorWpForms
#wordpress
Live

Showing 22 of 22 projects

// 04 — Experience

Career Timeline

Senior Full-Stack Developer (Web3 Freelance)

Current

Steel Spear Media-FZCO

Dec 2025 – Present
  • Architected full-stack Web3 dApps with React, Next.js, Node.js, and Solidity — integrating smart contract logic with TypeScript front-ends.
  • Deployed Solidity smart contracts on EVM-compatible chains including ERC-20 / ERC-721 token standards and staking mechanisms.
  • Built responsive Next.js front-ends with wallet integrations (MetaMask, WalletConnect) for end-user onboarding.
  • Developed REST and GraphQL APIs serving on-chain and off-chain data, with caching strategies and query optimization.

Senior Front-End & Mobile Developer (Contract)

Contract

XFlame Tech Design LLC

Apr 2025 – Nov 2025
  • Architected a React Native mobile application deployed across multiple internal company products with shared component library.
  • Led front-end development with React and Next.js, delivering performant, scalable, maintainable codebases across 6 casino platforms.
  • Integrated front-end systems with Node.js APIs covering authentication, data flows, and error handling.
  • Conducted code reviews and mentored junior developers across parallel project tracks.

Senior Application Developer (Team Lead)

Full-Time

Continental General Insurance Company

Jan 2023 – Mar 2025
  • Led design, development, and deployment of enterprise insurance applications serving thousands of policyholders.
  • Owned architectural planning and translated complex business requirements into scalable technical solutions.
  • Implemented automated testing and CI/CD pipelines, reducing deployment errors by ~30%.
  • Collaborated across product, design, and back-end teams to ensure system reliability and security compliance.

Senior Full-Stack Developer (Contract Lead)

Contract

Codebluedev

Jan 2022 – Dec 2022
  • Built full-stack applications using React, Node.js, and PHP for enterprise-level clients.
  • Designed and optimized relational and NoSQL databases (MySQL, PostgreSQL, MongoDB) for high-traffic systems.
  • Implemented microservices architecture with Docker for improved scalability.
  • Integrated Stripe, PayPal, and multiple third-party APIs into production systems.

Senior WordPress & Shopify Developer (Contract Lead)

Contract

New Idea Web

Nov 2020 – Dec 2021
  • Built custom WordPress themes and plugins, and Shopify storefronts using Liquid and the Shopify APIs.
  • Improved site performance by ~40% through caching, database optimization, and code refactoring.
  • Implemented secure payment gateways and applied security hardening across client platforms.

Senior Blockchain Developer (Lead)

Full-Time

SYSPLEX IT Solutions

May 2019 – Sep 2020
  • Designed and deployed NFT marketplaces, token contracts (ERC-20/721/1155), and staking mechanisms.
  • Developed Solidity smart contracts with security-first practices, including audit readiness.
  • Integrated Ethereum-based networks via JSON-RPC APIs and built on-chain reward systems.

Independent Full-Stack Freelance

Freelance

Upwork & Direct Clients — Global

2009 – Present
  • 50+ end-to-end web, mobile, and e-commerce projects across fintech, retail, and media.
  • Stack across projects: React, Next.js, Node.js, WordPress, Shopify, with strong repeat-business and referrals.
  • Earlier roles (2012–2021): Senior Developer, Lead Programmer, Blockchain Specialist, Systems Analyst across AU, PH, and global clients.
// 05 — Impact

Results That Matter

0+
Projects Delivered

End-to-end web, mobile, and e-commerce projects across 10+ years

0+
Years Experience

Deep expertise spanning frontend, backend, blockchain, and mobile

0%
Avg Load Time Improvement

Through caching, image optimization, and targeted code refactoring

0%
Fewer Deployment Errors

By implementing automated testing suites and CI/CD pipeline improvements

// 06 — Contact

Let's Build Something Great

Available for remote full-time, contract, and freelance engagements. Strong overlap with EU and US East timezones.

Currently available — Open to new opportunities
Dubai, UAE (GMT+4)
EU overlap 5–9 hrs · US East 8–11 hrs
Remote · Full-Time · Contract · Freelance