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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content
View heisjuanda's full-sized avatar
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Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

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Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
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Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
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heisjuanda/README.md

banner

Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

Pinned Loading

  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

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    Final

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    Final test from my university

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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heisjuanda/README.md

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Juan David Moreno Alfonso

Software Engineer focused on frontend quality, cloud architecture, and performance.

I build reliable systems and polished digital products with strong attention to architecture, UX, scalability, and execution.

Profile viewsPortfolioOpen to opportunitiesFocus Frontend and Cloud


About Me

I work across frontend, backend, infrastructure, and developer experience β€” turning complex problems into clean, scalable, and production-ready solutions.

My engineering mindset is shaped by performance, system design, reliability, and the details that make products feel fast, clear, and intentional.


What I Bring

  • Frontend engineering with strong attention to UX, polish, and product quality
  • Cloud architecture and deployment workflows with AWS, Cloudflare, Netlify, and Docker
  • Performance optimization, SEO, and technical improvements that create measurable product impact
  • Backend and automation work using Go, Python, JavaScript, and TypeScript
  • A practical engineering approach focused on shipping robust systems that scale well

Core Stack

Core technologies


Engineering Focus


Selected Strengths

  • Building polished frontend experiences that feel fast, stable, and refined
  • Designing infrastructure and technical foundations for reliable digital products
  • Improving performance bottlenecks and product flows with a quality-first mindset
  • Working comfortably across product, engineering, and execution details
  • Caring about the small things users may not notice immediately, but always feel

Current Role

Truora logo Truora

Building robust systems and high-quality technical solutions with a strong focus on reliability, scale, and product execution.


Principles

  • Speed is part of the user experience
  • Clear systems lead to better products
  • Thoughtful details build trust
  • Quality is visible in both architecture and interface

Connect

Visit Portfolio

Open to engineering roles, collaborations, and meaningful technical opportunities.

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  1. personal-portfoliopersonal-portfolioPublic

    My personal portfolio where I wanna share with you who I'm

    JavaScript 4 1

  2. adanj27/Patitas-a-casaadanj27/Patitas-a-casaPublic

    JavaScript 4 3

  3. heisjuandaheisjuandaPublic

    My personal and special repository

    1

  4. trabajo-de-grado-2trabajo-de-grado-2Public

    Final

    Python 1

  5. Program-languageProgram-languagePublic

    Final test from my university

    Racket 1

  6. Juan-DabotJuan-DabotPublic

    Telegram Bot

    Python 1