Hire the Best Front-End Developers
in Colombia

I build websites for businesses — and the systems that make them work after launch. If you need a professional website, a landing page that converts, a WordPress site you can manage yourself, or an online store — I build it from scratch, tailored to what your business needs. No templates, no page builders. Fast, clean, production-ready. ───────────────────────────────────────── What I build: Websites and landing pages — React, Next.js, or WordPress with custom theme development. Clean and fast for content sites, or immersive with Three.js and GSAP for brands that want to stand out. Figma designs translated to pixel-perfect code. WordPress sites — custom themes, plugins, WooCommerce, and sites you can edit yourself without touching code. The layer most agencies skip: once your site is live, I can connect it to systems that automate your client pipeline. WhatsApp chatbots that qualify leads before they reach you. HubSpot CRM that tracks every contact. Analytics dashboards that show exactly what's working. AI tools that save your team hours every week. You don't need to hire someone new for "phase two" — I'm already familiar with your product. ───────────────────────────────────────── My stack: - Frontend: React, Next.js, Three.js, GSAP, TypeScript - CMS: WordPress (custom themes and plugins), WooCommerce - Backend: Node.js, Python, Supabase - AI: OpenAI API, Claude API - Integrations: HubSpot, WhatsApp Business API, Google Analytics 4, Zapier, Make ───────────────────────────────────────── I work on fixed-price projects (landing pages, WordPress sites, quick integrations) and multi-phase builds. See my work at brief.sergioduran.dev

Skilled Front-End Developer & SEO Specialist with expertise in UI/UX design, plugin integration, and search engine optimization. I create high-performing websites and applications that are visually compelling, user-friendly, and built for growth. Core Skills & Expertise 🎨 Web Design & UI/UX – Crafting intuitive, responsive, and conversion-driven interfaces. 🔍 SEO & Search Ranking – On-page & off-page SEO, search indexing, keyword strategy. 🛠 Plugin Integration & Performance – Enhancing functionality, speed, and automation. 📊 Project Management – Data analysis, workflow optimization, and risk management. 🌍 Bilingual (English/Spanish) – Customer service, translation, and content creation. 🖌 Graphic Design & Branding – Professional photo editing, ad design, and brand identity. What I Deliver 🚀 High-ranking websites that drive organic traffic and boost conversions. 📱 Seamless digital experiences optimized for all devices. ⚡ Efficient, automated workflows through smart plugin integration. I’m passionate about transforming ideas into powerful digital solutions. Let’s connect and bring your vision to life!

💼 SDET | Playwright & Cypress Automation Engineer Systems Engineer, 6 years in test automation and software development. I've worked across the full QA stack — E2E automation, performance testing, BDD, and some frontend too. Right now I'm a Senior Test Automation Engineer at Globant, embedded in a product team where I'm building an E2E framework with Cypress from scratch. That means defining the architecture, setting up the folder structure, writing the base utilities, and onboarding the team to the patterns as we go. Outside of that, most of my automation work has been with Playwright and Python — Playwright for E2E coverage, Python for custom validators and anything that needs real logic behind it. I also have solid experience with Selenium, WebDriverIO, Postman, and JMeter. BDD is a big part of how I work. I write Gherkin scenarios and push for test planning before development starts, not after. It saves a lot of back-and-forth later. I know React JS and modern JavaScript too — I keep unit coverage above 80% and follow SOLID/DRY where it actually helps, not just on paper. One result I'm proud of: cut regression time by 40% at a previous company by automating manual validations and moving testing earlier in the cycle. 💬 Open to automation projects, QA strategy work, or building test infrastructure from the ground up. #QAAutomation #BDD #Playwright #Gherkin #WebDriverIO #Cypress #React #JavaScript #Python #SoftwareTesting #TDD #SOLID #Agile #ShiftLeft #TestAutomation #QualityEngineering

I have more than 12 years of experience delivering high-quality web solutions for companies in the US, and Europe. I bring strong expertise in both Front-end and Back-end development, building everything from basic websites to complex web applications, custom e-commerce platforms, and themes or plugins developed from scratch. I also provide ongoing maintenance, support, and troubleshooting, always with a strong focus on usability and design details.

Front End Developer with expertise in technologies such as ReactJS, VueJS, Shopify Liquid, HTML5, CSS, Javascript, and Tailwind. Additionally, I have strong skills in relational SQL and non- relational MongoDB databases. I am a motivated and dedicated professional who enjoys collaborating with other professionals to achieve exceptional end results. I am able to work autonomously and take initiative when necessary, as well as work in a team and maintain clear and open communication. Always looking for opportunities to learn new technologies and improve my skills, and I am excited to apply my experience to new development challenges.

Full-stack developer and UI/UX designer with 5+ years of experience building web applications. I design, develop, and deploy fast, responsive, and user-friendly web applications from end to end. I’ve worked with many different types of clients, from small startups building their first MVPs to companies developing complex, enterprise-grade applications. Across client work and personal projects, I’ve built everything from modern websites and internal platforms to large-scale applications with hundreds of modules, advanced authentication, security, databases, dashboards, integrations, and automation workflows. Core technologies: Next.js, React, TypeScript, JavaScript, Python, FastAPI, Node.js, Supabase, PostgreSQL, Firebase, MongoDB, Cloudflare, Vercel, Hugging Face, Tailwind CSS, Figma and many more. I combine strong engineering with high-quality design to deliver scalable products, clean architecture, excellent performance, and polished user experiences. Please check out my portfolio, especially my highlighted projects. You’ll find live links where you can interact with full applications featuring authentication, security, databases, dashboards, and real product functionality.