Looking for a job

Juan Manuel Fierro

@juanmanuelfierro

Message

Implementation Developer at Stensul who created an AMPscript patching tool and automated responsive email visual QA.

Argentina

Message

At Stensul, I develop and troubleshoot enterprise marketing workflow implementations, including custom email components and Salesforce Marketing Cloud integrations. I also created a JavaScript AMPscript Patcher Artifact with configurable rules, validation, and change previews.

I built an AI-assisted Figma design catalog for reusable email modules and a Playwright pipeline that generated responsive email captures for visual QA and documentation. I also investigated tracking pixels, dynamic content, and cross-client dark-mode rendering.

In client WordPress projects, I implemented CMS changes and integrated React landing experiences. My personal projects include Maese, a mobile-first tabletop campaign management platform, and Isópodo Estampados, an e-commerce storefront.

Experience

Work history, roles, and key accomplishments

Current

Implementation Developer

Current

Stensul

Aug 2023 - Present (3 years 2 months)

Develop and troubleshoot technical implementations for enterprise marketing workflows, including custom email components, responsive HTML/CSS, AMPscript and Salesforce Marketing Cloud integrations. Built a JavaScript-based AMPscript Patcher Artifact and an AI automated Figma design catalog with a Playwright-based pipeline for visual QA.

JavaScript HTML CSS AmpScript Salesforce Marketing Cloud Figma Playwright AI Automation

Front-end Developer

Media.Monks

Nov 2021 - Aug 2023 (1 year 9 months)

Built landing pages, rich-media experiences and email campaigns for international clients using front-end technologies and internal production frameworks. Reduced email campaign production time by 50% through templating and automation.

Frontend Development HTML CSS JavaScript Email Campaigns Automation Templates

Front-end Developer

Tecnoacción

Feb 2020 - Oct 2021 (1 year 8 months)

Contributed to a React-based lottery PWA that supported a reported 150% increase in ticket sales following the team implementation. Developed a React operations dashboard that reduced incident-resolution waiting time by 50%.

React PWA Dashboard Development Operations

WordPress Developer

Client Web Projects

Jan 2026 - Present (9 months)

Implemented WordPress website changes using Bricks Builder, PHP/child themes, ACF, custom post types, Gutenberg and REST APIs; deployed and tested changes using WP Engine and SFTP. Built and integrated React/Vite/Tailwind landing experiences into WordPress sites and supported technical SEO, analytics, consent management and conversion tracking.