E-Commerce Engineer - Shopify & WordPress at Private/Unspecified (June 2026 project delivery)

Delivered dual-platform premium store front for a pet hydration brand, migrating from high-fidelity prototypes to production launch. Built Shopify Online Store 2.0 dynamic sections/blocks, metainfield-driven merchant self-service content, and schema/settings for configurable storefront updates. Implemented WordPress theme mapping to custom post types, grouped advanced ACF field structures, and integrated WooCommerce for e-commerce functionality alignment between WordPress and Shopify. Added end-to-end quality gates with Playwright E2E smoke tests and Lighthouse CI for performance and accessibility before deployment.

Delivered premium storefronts for Shopify and WordPress for a pet hydration brand, taking hi-fi designs from prototypes to production launch. Implemented Shopify Online Store 2.0 with dynamic sections/blocks, metafield-driven content, and schema settings for merchant self-service. Matched WordPress themes using custom post types, ACF field groups, and WooCommerce integration. Added Playwright E2E smoke tests and Lighthouse CI audits for performance and accessibility before deployment.

Backend Engineer — E-Commerce Data Pipeline at Software Systems US

Built a production-grade scraping and publishing pipeline for Alibaba and AliExpress product catalogs: automating catalog sourcing, AI content generation, and WooCommerce publishing end to end. Implemented Puppeteer scraping with anti-detection hooks and proxy rotation integration, using Bull/Redis queues with retry logic, concurrency control, and real-time progress via WebSockets. Integrated OpenAI to generate product descriptions, SEO metadata, UGC-style reviews, and image alt text at queue-processing time. Implemented an idempotent WooCommerce REST publisher with Sharp image optimization and category/tag mapping. Designed PostgreSQL tracking tables for job state, scrape metadata, and publish history.

Backend Engineer - E-Commerce Data Pipeline (Web Scraping & Publishing) at Private/Unspecified

Production web scraping and publishing pipeline for AliBaba and AliExpress product catalogs: sourced data, generated AI content for product descriptions, SEO metadata, UGC-style reviews, and image alt text, and published results to WooCommerce end-to-end. Implemented Puppeteer scraping with anti-detection fingerprinting, proxy rotation, and robust queue processing using Bull/Redis with retry logic and WebSocket progress tracking. Built WooCommerce REST publishing with Sharp-based image optimization, tag/category mapping, and idempotent upsert logic. Managed PostgreSQL schema (sequlize/ORM) for job state, product lifecycle metadata, scraping metadata, and publish history.

Built production web scraping and publishing pipelines for Alibaba and AliExpress product catalogs: sourced product data, generated AI-driven content (descriptions), and published via WooCommerce end-to-end. Implemented Puppeteer scraping with anti-detection fingerprinting, proxy rotation, Bull/Redis queues with retry logic, and WebSocket progress tracking. Exposed OpenAI API endpoints for product descriptions, SEO metadata, UGC-style reviews, and image-text extraction processed at queue time. Implemented WooCommerce REST publishing with Sharp-based image optimization, tag/category mapping, and idempotent upsert logic. Used Sequelize ORM schema for job state management, product lifecycle, scraped metadata, and publish history.

E-Commerce Engineer — Shopify & WordPress at Software Systems US

Delivered a dual-platform premium storefront (Shopify and WordPress) for a pet hydration brand, built from hi-fi design prototypes to production-ready launch. Implemented Shopify Online Store 2.0 theme with dynamic sections/blocks and metafield-driven content. Built a matching WordPress theme with custom post types, ACF field groups, and WooCommerce product integration. Added Playwright E2E smoke tests for critical purchase paths and Lighthouse CI audits for performance/accessibility gating before deploy.

Full-Stack Engineer — Solar Operations CRM at Software Systems US

Architected and built a role-aware field-operations CRM replacing spreadsheets and disconnected tools with a single lead-to-paid system. Implemented an 8-stage drag-and-drop job pipeline (lead → quote → won → metering → scheduled → installed → invoiced → paid) with status-aware business rules and role-based dashboards for Admin/Manager/Installer. Designed a scheduling engine for three concurrent field teams with daily kW capacity limits and anti-double-booking to prevent over-allocation before dispatch. Automated compliance alerts (delay flags, readiness checks, post-meter SLA tracking, overdue invoice escalations). Delivered a Vercel frontend POC with a NestJS API backend; stack includes TypeScript, React, NestJS, PostgreSQL, and Vercel.

Full-Stack Engineer - Solar Operations CRM at Private/Unspecified

Built a lead-to-paid solar installation operations CRM for solar installation companies. Implemented an 8-stage drag-and-drop job pipeline with status-aware business rules and role-based dashboards for admin/manager/installer workflows. Added scheduling engine for concurrent field teams with daily kW capacity limits and anti-double-booking. Automated compliance alerts including pre-meter delay flags, installation readiness checks, post-meter SLA tracking, and overdue invoice escalations. Proof of concept referenced as solar-poc-...app/ (NestJS API via monorepo).

Led-to-paid field operations CRM for solar installation companies. Built an 8-stage drag-and-drop job pipeline with status-aware business rules and admin/manager/installer dashboards. Implemented a scheduling engine for 3 concurrent field teams with daily capacity limits and anti-double-booking. Automated compliance alerts including pre-meter delay flags, installation readiness checks, post-meter SLA tracking, and overdue invoice escalations. Proof of concept: solar-poc-seven.vercel.app with NestJS API via a Git submodule monorepo. Stack included TypeScript, React, NestJS, PostgreSQL, Vercel, and a backend built with the listed technologies.

Artificial Intelligence Engineer at Software Systems US

Built a multi-tenant AI agent orchestration platform (Turbo monorepo: NestJS, Next.js, FastAPI) where configurable agents execute Kanban/Scrum tasks and reduce manual engineering handoff. Integrated Cursor and Claude CLI executors for agentic coding (epic breakdown, automated code review, task implementation driven by multi-turn tool calling). Engineered pgvector semantic-memory with per-project markdown knowledge bases and selective context injection. Implemented governance council interception for high-risk agent actions with audit logging and per-model LLM cost tracking.

Full-Stack Engineer — AI Agent Platform at Software Systems US

Built a multi-tenant AI-orchestrated project management platform from scratch (Turbo monorepo) covering Kanban/Scrum workflows, sprint planning, issues, and AI agent assignment with configurable skills and automated task execution. Implemented a project memory layer using PostgreSQL pgvector with per-project markdown knowledge bases and selective context injection for persistent, queryable working memory. Shipped a governance council that intercepts high-risk agent actions for human approval with full audit logging and per-model LLM cost tracking. Integrated Cursor/Claude CLI executors for epic breakdown, automated code review, and task implementation to reduce manual engineering handoff. Delivered org-scoped multi-tenancy and role-based access (Owner/Admin/Member/Agent) across projects, teams, and boards.

AI Agent Orchestration Platform - Full Stack Engineer - AI Agent Platform at Software Systems US (Remote)

Built a multi-tenant AI-orchestrated project management platform (TurboMonorep), managing kanban/scrum flows, sprint planning, issue tracking, and AI-agent assignment with configurable skills and automated task execution. Implemented a project memory layer using PostgreSQL pgvector for semantic memory retrieval, markdown-based knowledge bases per project, and selective context injection. Added governance council interception for high-risk agent actions requiring human approval, with full audit logging and per-model LLM cost tracking. Integrated Cursor and Claude CLI executors for breakdown, code review automation, and task implementation, with RBAC (Owner/Admin/Member/Agent) across projects/teams/boards. Stack includes TypeScript, NestJS, Next.js/FastAPI, PostgreSQL, Redis, Meilisearch, Docker for a production-ready system.

Fintech Back End Developer at Fintech

Developed Flutter banking screens and a Java/PHP REST API monorepo; led a Laravel-to-core-PHP migration and completed Android 16KB page-size migration for Google Play compliance.

Mobile & Backend Engineer — Fintech at Fintech

Extended and maintained a multi-bank mobile banking application serving real users across an Android Flutter client and a Java/PHP REST API monorepo. Developed new Flutter screens and state-management patterns integrated with paginated REST APIs and maintained existing features across Android versions. Led an API migration from Laravel to core PHP while preserving backward compatibility with legacy constraints. Authored onboarding SOPs and agent skills for backend, Android, and monorepo context to reduce ramp time for new contributors and AI code agents. Completed Android 16KB memory page-size migration required for Google Play Store compliance on Android 15+ devices.

Mobile & Backend Engineer - Fintech at Private/Unspecified

Extended and maintained a multi-bank mobile banking application (Android Flutter + Java/PHP REST API in monorepo). Implemented new Flutter screens and state management via paginated REST APIs, with cross-Android version maintenance. Led API migration from Laravel to core PHP while preserving backward compatibility for legacy constraints. Worked on onboarding SOPs and agent skills for backend, Android, and monorepo context. Completed Android 16KB memory page size migration for Google Play compliance on Android 15+.

Full-Stack Engineer - AI Agent Platform at Software Systems US (Remote)

Built an AI agent orchestration platform with multi-tenant architecture, queue-based processing, semantic memory (pgvector), and agent governance for high-risk actions requiring human approval. Implemented audit logging and per-model LLM cost tracking. Integrated Cursor/Claude CLI executors for automated task execution and code review workflows, including task implementation with typed/multi-step handoffs. Developed a project memory layer using PostgreSQL + pgvector to support markdown-based knowledge bases per project and selective context injection. Added RBAC governance council capabilities for roles such as Owner/Admin/Member/Agent across projects. Tech stack includes TypeScript, NestJS, Next.js, FastAPI, PostgreSQL, Redis, Meilisearch, and Docker; focused on reliable documentation and operational visibility for both engineers and AI agents.

Extended and maintained a multi-bank mobile banking application (Android Flutter + Java/PHP REST API via monorepo). Developed new Flutter screens and state management with paginated REST endpoints; supported cross-Android-version maintenance. Migrated API implementation from Laravel to core PHP while keeping backward compatibility for legacy architecture constraints. Contributed to onboarding SOPs and agent skills for backend, Android, and monorepo contexts. Performed Android 16KB memory paging size migration to meet Google Play compliance for Android 15+.

Open Source Generative AI / LLM / LangChain (AI engineer) at Self-directed / Open Source

Worked on LLM systems, agentic workflows, and open-source AI tooling spanning applied ML and production-grade software engineering. Built LLM-powered applications using LangChain/OpenAI and open-source models including RAG pipelines and document Q&A systems. Developed agentic systems using MCP by building custom MCP servers (TypeScript) to bridge LLMs with external APIs and CRMs. Integrated generative AI into production web platforms including AI-assisted content generation, intelligent search, and natural language interfaces. Contributed to open-source LLM tooling and prompt engineering frameworks and applied AI across e-commerce, SaaS, and enterprise systems.

Full Stack Developer / Sr. Developer (Freelancing) at Open Source Project (Generative AI model | LLM | LangChain)

Contributed as a mid-level developer to an open-source generative AI project using LLM workflows with LangChain. Focused on building and integrating AI capabilities, and supporting development activities related to GenAI functionality.

Open Source - Generative AI / LLM / LangChain at Private/Unspecified

Built LLM-powered applications using LangChain, OpenAI APIs, RAG pipelines, and document Q&A and automation tooling. Developed agentic AI systems integrating MCP-style custom MCP servers in TypeScript to bridge LLMs with external APIs and CRMs. Tools/stack included LangChain, OpenAI API, Python, FastAPI, n8n, MCP, and pgvector-based retrieval.

Developed LLM-powered applications using LangChain, OpenAI, RAG pipelines, document Q&A, and AI-driven automation. Built agentic AI systems using TypeScript with custom MCP servers to bridge LLMs with external APIs and CRMs. Tools included LangChain, OpenAI API, Python, FastAPI, n8n, MCP, RAG, Pinecone, and pgvector.

Mid. Developer at Open Source Project

Contributed as a mid-level developer to generative AI models, large language models, and LangChain projects, focusing on advanced AI technology development and implementation.

Mid. Developer at Open Source Project

Working on generative AI models involving LLM and LangChain technologies, contributing to AI-based open-source projects with coding and development responsibilities.

Mid. Developer at Open Source Project

Contributed as a mid-level developer on open source projects focusing on generative AI models, large language models (LLMs), and LangChain integrations.

Senior Full Stack Engineer (Freelance) at Upwork (Freelance)

Delivered 10+ full-stack platform projects across SaaS, client portals, and e-commerce; also built ML systems and enterprise web apps. Completed end-to-end delivery lifecycle including discovery, system design, implementation, testing, security, and performance. Developed REST and GraphQL APIs for web and Flutter clients; worked in fintech, retail, healthcare, and professional services contexts. Noted platform experience includes Shopify and custom e-commerce, Flutter mobile, and n8n automation.

Senior Full Stack Engineer (Freelance) at Upwork / Fiverr

Delivered 10+ full-stack platforms across SaaS, client portals, and e-commerce with React, Next.js/Node.js, and Laravel. Owned full delivery lifecycle: discovery, system design, implementation, testing, security, and performance. Built REST and GraphQL APIs for web and Flutter clients; worked across fintech, retail, healthcare, and professional services.

Full Stack Developer at Freelancing

Providing full stack development services working on various technologies including React, Node.js, Python, and blockchain-related projects. Engaged in automation testing, performance measurement, and cross-browser accessibility compliance. Involved in documentation, blogging, and cross training across industry niche skills.

Full Stack Developer at Freelancing

Developing full stack applications freelance with expertise in multiple frameworks and languages such as React, Angular, Node.js, Python, and blockchain technologies. Also contributing as a senior developer maintaining quality and performance.

Full Stack Developer at Freelancing

Worked as a full stack developer on various projects from scratch, handling design, development, automation testing, security, performance measurement and documentation. Utilized technologies including React, Angular, Node.js, Python, REST APIs, OAuth, JWT, and blockchain concepts. Responsibilities also included content creation, release management, training, and cross-technology knowledge sharing.

Full Stack Engineer at Upwork & Fiverr

Built applications and prototypes with Spring Boot, React/Redux, Saga, Bootstrap, and MySQL. Delivered a secure health communication portal with encrypted REST communication. Upgraded JavaScript/AJAX UIs with Promises and Axios and introduced TypeScript. Added unit testing with Jest/Enzyme; worked with Git/Jenkins and Agile delivery via JIRA. Highlighted work includes UI modules for payments and banking flows and responsive web/hybrid mobile views.

Sr. Full Stack Developer at Upwork & Fiverr (Freelancing)

Built prototypes and applications using Spring Boot, React/Redux, TypeScript/JavaScript (Axios, Promises), and MySQL. Developed encrypted health-communication portals using RESTful APIs and improved UI using asynchronous patterns and component lifecycle handling. Added styling layers using SASS/LESS and created hybrid web views. Implemented unit testing with Jest/Enzyme and improved reliability with CI automation using Jenkins and Git. Built backend services using Spring DI and Hibernate, including payment-related workflows such as pending transaction identification and payment authorization.

Full Stack Engineer at Private/Unspecified (Spring Boot/React roles)

Built a secure healthcare communication portal using encrypted REST APIs and web sockets; handled TypeScript migrations and JavaScript/React migrations. Implemented banking UI modules including quick pay, transfers, payment activity, commercial enrolment, and third-party integrations. Focused on strong TDD and unit test coverage.

Sr. Full Stack Developer at Upwork & Fiverr

Developed web applications and prototypes using Spring Boot, React, Redux, Saga, and MySQL. Built health communication portal software with secure encrypted data transfer via RESTful APIs. Upgraded UI with JavaScript and AJAX, integrated TypeScript, and ensured unit testing coverage using Jest and Enzyme. Used Java/J2EE backend with Spring services and deployed CI pipelines using Jenkins and Maven.

Sr. Full Stack Developer at Upwork & Fiverr

Built applications and prototypes using Spring Boot, React, Redux, JavaScript, and MySQL. Responsible for UI development and integration of backend services with a focus on unit testing and accessibility compliance. Worked on REST API development, SOAP and REST communication, SASS & LESS CSS preprocessors, and agile methodology for rapid development.

Sr. Fullstack Developer at Upwork & Fiverr

Developed full stack applications using Spring Boot, React, Redux, saga, HTML, CSS, and MySQL. Created custom web-based MVC health communication portals using RESTful APIs, JavaScript/AJAX UI improvements with Promises and Axios, TypeScript integration, and testing with Jest and Enzyme. Developed backend APIs and microservices architecture, followed Agile methodologies, and worked extensively on payment and enrollment modules with high unit test coverage.

Full Stack Engineer at CMB Bank App

Built accessible web interfaces and SPA frontends with React Router and Redux, integrating REST and SOAP services and using WebSockets for live updates. Implemented Node.js/Express APIs and Java Spring MVC/Hibernate with microservices decomposition and Oracle SQL/stored procedures. Supported operations with AWS CloudWatch/Splunk, and CI/CD with Maven/Jenkins and Tomcat deployments. Project highlight includes global wire payment flows with strong TDD and high unit-test coverage.

Sr. Full Stack Developer / Tech Lead at KICS / CMB Bank (Client)

Designed and implemented web and hybrid user interfaces in HTML5/CSS3/Bootstrap/JavaScript with React. Added accessibility and cross-browser support across older IE and modern browsers. Built SPA flows with React Router, managed application state using Redux, and integrated WebSocket for continuous geo-location updates (e.g., maps). Implemented drag-and-drop, autocomplete location search, and Excel export functionality using open-source libraries. Built backend REST APIs and microservices with Spring Boot/Spring MVC and Hibernate/JPA, including multi-threading on backend components, SOAP/REST integrations, and JSON request/response processing. Supported automated testing and deployment workflows with Jenkins/Maven and monitoring (Splunk/AWS CloudWatch/Dynatrace).

Full Stack Engineer at Private/Unspecified (CMB Bank App)

Built accessible HTML5/CSS3-based app experience and SPA features including React Router, Redux, REST/SOAP, and WebSockets. Developed Node.js/Express backend components, Spring MVC/Hibernate/JPA, and microservices. Worked with Oracle SQL and AWS monitoring/observability; implemented end-to-end features for global wire payments and related banking workflows.

Accessibile HTML5/CSS3 Frontend & Full Stack Engineer (Freelance/Contract) at KICs / Client projects

Developed accessible HTML5/CSS3 and interactive web modules using jQuery/PHP/React with routing, Redux, REST/SOAP, and WebSockets. Implemented Node.js/Express and Spring MVC/Hibernate/JPA and microservices backends with Oracle SQL and AWS observability (CloudWatch/Splunk).

Full Stack Engineer at Upwork & Fiverr

Built secure healthcare communication portals with encrypted REST, TypeScript migrations, Jest/Enzyme, and CI/CD using Jenkins in an Agile/JIRA workflow. Implemented banking UI modules including quick pay, transfers, payment activity, commercial enrolment, and third-party integrations. Highlighted: Global wire payments for Wells Fargo-wire bank-to-bank/group payments with strong TDD and unit-test coverage.

Full Stack Engineer at Simcoe IT

Worked on a Kotlin/Android story app and React UIs using hooks and immutable patterns. Developed Spring MVC/JSP/Hibernate and Express REST APIs with AJAX-driven interactive applications. Highlight includes cruise industry platforms for bookings, itineraries, live location, payments, and onboard deck booking.

Full Stack Developer / Tech Lead at Simcoe IT LLP

Delivered full-stack features using Kotlin/XML/JavaScript plus backend services with Express, Node, Spring Boot, Hibernate/JPA, and data stores including MySQL and MongoDB. Implemented front-end experiences (React/Angular, SPA patterns), built responsive and accessible UI, and supported AJAX-driven partial rendering/validation. Developed booking workflows and itinerary tracking for cruise clients with payment gateway integrations and onboard deck booking modules. Applied microservices approaches by breaking down monoliths and used design patterns (Facade/Factory/DAO/DTO). Contributed to performance, reliability, testing, and deployment on Tomcat using Maven and CI tooling.

Full Stack Engineer at Private/Unspecified (Simcoe IT / Kotlin / React)

Developed Kotlin/Android modules and React hooks; implemented Spring MVC, Hibernate, and Express REST APIs. Built cruise platform features including bookings, itineraries, live location, payments, and onboarding deck booking workflows.

Full Stack Developer at Simcoe IT LLP

Developed a Kotlin story app and various web applications using technologies like Kotlin, XML, JavaScript, React, Redux, Node.js, Express, Spring Boot, MySQL, and MongoDB. Implemented accessibility standards, developed REST APIs, and built front-end components utilizing AngularJS and AJAX. Delivered a booking and itinerary tracking platform for luxury cruise ships with payment gateway integration.

Full Stack Developer at Simcoe IT LLP

Developed a story app in Kotlin and created web applications using Kotlin, XML, JavaScript, React, Node.js, Spring Boot, and MySQL. Implemented RESTful APIs, Angular JS 2.0, and designed business logic with Spring framework and Hibernate. Worked on an online booking platform for luxury cruise ships with payment gateways and live travel tracking features.

Full Stack Developer at Simcoe IT LLP

Developed a story app with Kotlin to play historical stories, created fragments and navigated layouts. Designed and tested Kotlin, XML and JavaScript ensuring accessibility and browser standards. Built web frontends using Spring MVC with JSP, HTML5, CSS and AJAX. Developed business logic using Spring and data access using Hibernate. Implemented AngularJS and AJAX for system performance improvement. Worked on an online booking platform for luxury cruise ships including payment gateway and itinerary tracking.

Application Developer at KICS (Freelance)

Built Android apps featuring OpenCV OCR and document conversion using open-source libraries. Delivered e-commerce, stock management, and plugin-style solutions. Built, tested, and published stable APKs to Google Play.

Android App Developer / Tech Lead at KICS

Developed Android applications including OCR/text recognition using OpenCV and converting results into document formats using open-source libraries. Built business-facing solutions such as eCommerce, stock management, and additional plugins. Designed, developed, and tested across Android versions and device environments, producing stable APKs and publishing to Google Play. Worked on purchased codebases and implemented new features (e.g., OCR and management capabilities) to improve usability for customers.

Application Developer (Freelance) at Private/Unspecified

Developed Android application using OpenCV OCR for e-commerce and stock management. Published APKs to Google Play.

Android App Developer at KICS

Developed Android applications using Java and Kotlin, including apps for text recognition using OpenCV that converted text into documents. Created business solutions such as e-commerce and stock management apps. Designed and tested applications across different Android versions, producing stable APKs and publishing them to Google Play Store.

Android App Developer at KICS

Developed Android applications including OCR-based text recognition using OpenCV, business solutions like E-Commerce and stock management plugins. Responsible for designing, development, and testing of apps across different Android environments and versions and publishing stable APKs to Google Play Store.

Android App Developer at KICS

Developed Android applications involving text recognition using OpenCV and converting text into document formats using various open source libraries. Created business applications including E-commerce, stock management, and web building plugins. Designed, developed and tested apps on different Android versions and environments, created stable APKs and deployed them to the Google Play Store.

Freelance Full Stack Engineer at Upwork

Delivered end-to-end web and mobile solutions across architecture, implementation, automated testing, security hardening, and performance optimization. Built 10+ full-stack platforms including SaaS products, client portals, and e-commerce systems using React/Next.js/Node.js/Laravel. Owned delivery lifecycle and integrated AI features such as LLM-powered functionality, intelligent search, and automated data pipelines. Built and maintained REST/GraphQL APIs consumed by web and mobile (Flutter) clients across fintech, retail, healthcare, and professional services.

Full-Stack Engineer at Upwork (Freelance)

Completed 50+ projects across SaaS, e-commerce, ML systems, and enterprise web applications; supported production platform delivery. Worked across Shopify/e-commerce, Flutter mobile, and n8n automation; produced end-to-end web and API solutions.