Full-stack engineering and back end
- PHP/WordPress, React (Vite), and Node.js.
- Java (Spring Boot) for APIs and business platforms.
- Databases: MySQL/Prisma, SQL Server, MongoDB.
Automation · Technical SEO · Accessibility
Systems engineering applied to web platforms and automation
Senior Systems Engineer. I design, audit, and harden web platforms and backends in enterprise environments with a focus on automation, technical SEO, accessibility, and measurable performance.
0.14 → 0.04 CLS · Shopify
3.1s → 2.4s LCP p75 mobile
−32% Non-critical JS
Automation / n8n AEM / WordPress Shopify / Liquid Core Web Vitals Accessibility WCAG Technical SEO / hreflang
Maycoll Jaramillo
Systems engineering · Technical SEO · Accessibility · Performance
Managua, Nicaragua · remote LATAM / EU / US.
CWV · WCAG 2.2 · HREFLANG · JSON-LD · N8N · WHATSAPP API · SHOPIFY LIQUID · AEM · GA4
Delivery checklist
- Architecture and hardening per platform (WordPress/AEM/React/Node).
- Structured data and indexation control: sitemaps, hreflang, canonicals.
- WCAG accessibility with visible focus, keyboard, and semantics.
- Automation with n8n and WhatsApp API; opt-in and event logs.
- QA, documentation, and handoff for marketing/content teams.
Validation
- Focus order, landmarks, and keyboard support in menus, modals, and forms.
- Canonicals, hreflang, and sitemaps consistent per template.
- Font/image preload and critical CSS sized for stability.
- GA4/Pixel events without duplication or render blocking.
Areas of focus
Platforms, automation, and DX with technical criteria
I work with teams that need operational stability, data control, and validated delivery. Remote-first from Managua (UTC-6) with availability for LATAM and Europe.
Automation and DevOps
- n8n for orchestration and automation.
- API integrations and multilingual chatbots.
- Docker and GitHub Actions for CI/CD and reproducible builds.
Technical SEO and search architecture
- Core Web Vitals and real-world performance.
- JSON-LD and structured data.
- Information architecture and crawlability with GSC/GA reporting.
Digital Experience and accessibility
- AEM component governance and content operations.
- WCAG accessibility: semantics, keyboard, focus, contrast.
- Technical audits and remediation guides.
Contextualized stack
Every tool is used with intent and proof: CWV, accessibility, indexation, and measurement ready for business.
Verified delivery
Verified delivery
Performance & frontend
Toolkit
- Semantic HTML
- CSS (Tailwind)
- Modern JavaScript
- React 18
- Astro (SSG)
- Core Web Vitals
- Font / image optimization
In production
- Semantic layout and focus order validated.
- Preload and critical CSS sized for visual stability.
- Asset budgets with compression and sizing.
Verified delivery
Backend & data
Toolkit
- PHP / WordPress
- Node.js / Express
- React (Vite)
- PostgreSQL / MySQL
- MongoDB
- Firebase
- Prisma ORM
In production
- APIs with logging and controlled cache.
- Data models aligned to conversion reporting.
- Reproducible builds with CI/CD.
Verified delivery
CMS & enterprise
Toolkit
- WordPress (custom/hardening)
- Shopify (Liquid/technical CRO)
- AEM
- Webflow
- Liquid schema
In production
- Lightweight themes without unnecessary plugins/apps.
- Accessible components ready for content teams.
- Migrations with consistent redirects and canonicals.
Verified delivery
Technical SEO
Toolkit
- Sitemaps + canonicals
- Robots and indexation
- JSON-LD schema
- Hreflang ES/EN
In production
- Sitemap architecture and canonicals per template.
- Structured data (Person, WebSite, ProfilePage, BreadcrumbList).
- Indexation control and GSC coverage.
Verified delivery
Accessibility
Toolkit
- WCAG 2.x
- Keyboard navigation
- Visible focus
- Accessible forms
- AA contrast
In production
- Accessible patterns for menus, modals, filters, checkout.
- Roles/aria only when it adds value and is tested.
- Manual and automated validation across critical flows.
Verified delivery
Automation & tracking
Toolkit
- n8n / API integrations
- GA4
- Meta Pixel
- WhatsApp Business API
- Deduplicated events
In production
- Events without duplication (GA4/Pixel/server).
- Automations with opt-in and traceability.
- Light dashboards and alerts for CWV and conversion.
Featured work
STAR: situation, task, action, result
Verifiable outcomes. Metrics are shared publicly or on request with proper context.
S - Situation
Real constraints and context.
T - Task
Measurable goals and templates.
A - Action
Technical changes, QA, documentation.
R - Result
KPIs shared or on request.
Verifiable outcomes
View all
Case study
Headless ecommerce: Astro + Shopify, CWV and accessibility
Retail · Frontend Lead / Technical SEO
Build a headless front with Astro + Storefront API, with CWV budgets, accessibility by default, and consistent technical SEO.
Key technical problem
Shopify store with a script-heavy theme, high LCP, and recurring CLS. Needed control over performance and accessibility without hurting conversion.
Critical technical decision
1) CWV audit and dependency map for JS/third-parties. 2) Migration to Astro with minimal islands and critical asset preloading. 3) Accessible layouts (landmarks, focus order, modal...
Stack
AstroReactShopify Storefront APITailwind CSSCore Web VitalsAccesibilidad (WCAG)GA4 / Pixel
Highlights
- Replaced heavy theme with a controlled headless front end
- CWV budgets by template (home, PLP, PDP, blog)
Outcome
PDP LCP 3.4s -> 2.1s p75 (CrUX)Case study
Automation: GHL + WhatsApp Business for lead capture and follow-up
Lead Gen · Automation Engineer
Design an automation system in GHL with WhatsApp Business to improve response time, pipeline order, and lead continuity.
Key technical problem
Lead capture relied on manual, inconsistent follow-up, risking lost leads from slow replies or lack of traceability.
Critical technical decision
1) Defined pipeline and minimum measurable events. 2) Designed stage-based workflows: intake, qualification, reminders, reactivation. 3) Integrated Meta-approved templates and send...
Stack
Go High Level (GHL)WhatsApp Business APIPlantillas aprobadas por MetaFunnelsTracking de conversiones (configurable)
Highlights
- Lead-to-contact and follow-up flows
- Meta-approved templates and compliance for WhatsApp
Outcome
Automated follow-up and less manual workloadCase study
WordPress: technical audit (performance, security, SEO)
Services · Technical Lead
Find root causes of slowness/errors, clean technical SEO, and propose a realistic phased improvement plan without breaking production.
Key technical problem
WordPress site with degraded performance, inconsistent SEO configuration, and risk from plugin sprawl and scattered settings.
Critical technical decision
1) Audit with Query Monitor: timings, queries, hooks, conflicts. 2) Plugin review: redundancy, impact, alternatives, and safe removal. 3) Recommended cache tuning (server + WP) and...
Stack
WordPressQuery MonitorPHPCachingRobots/Sitemaps
Highlights
- Diagnosed bottlenecks (plugins, hooks, queries)
- Fixed technical SEO configuration (robots, sitemap, canonicals)
Outcome
Average TTFB 1.2s -> 520msCase study
Shopify: performance + technical SEO without breaking conversion
eCommerce · Shopify Developer / Technical SEO
Reduce Core Web Vitals issues (especially CLS), clean technical SEO (canonicals, metadata, schema), and preserve compatibility with essential apps.
Key technical problem
Shopify store with unstable visual rendering, uncontrolled asset loading, and inconsistent SEO signals. Needed real performance gains without harming purchase flow or critical trac...
Critical technical decision
1) Lighthouse audit + theme review: layout shifts, images without dimensions, fonts. 2) Liquid tweaks to avoid reflows: reserve space (width/height), avoid late injections, refacto...
Stack
Shopify LiquidJavaScriptSEO tecnicoCore Web VitalsSchema JSON-LDGA4 / Pixel (configurable)
Highlights
- CWV audit and removal of CLS causes
- Liquid optimization and conditional script loading
Outcome
CLS 0.14 -> 0.04; PLP LCP 3.1s -> 2.4s p75 (mobile)Technical blog
Technical SEO, accessibility, measurement
Practical guides and validated patterns for product and marketing teams.
Article
WCAG audit in eCommerce: recurring errors and fixes
accessibilitywcagecommerce
Patterns that repeat in stores: focus, labels, contrast, states, forms, navigation.
Dec 29, 2025 Read
Pattern
Monitoring rankings and logs without overloading teams
SEOLogsMonitoring
Lightweight stack to track positions, CTR, and crawling without endless dashboards: Search Console, logs, alerts.
Feb 14, 2025 Read
Pattern
Local SEO: optimized listing and NAP consistency
SEOLocalGBP
Steps to rank in maps: Google Business Profile, consistent citations, and reviews that don't look like spam.
Feb 7, 2025 Read
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We review your stack, current metrics, and define an action plan with clear priorities and measurable deliverables.