Hi, my name is
Karlen Nersisyan
Senior Full Stack Developer
I build fast, accessible, and visually polished web experiences. Based in Yerevan, Armenia — open to remote opportunities.
const developer = {
name: "Karlen Nersisyan",
role: "Senior Full Stack Dev",
frontend: ["React", "Next.js", "Vue"],
backend: ["Laravel", "PHP", "Firebase"],
lighthouse: 90,
available: true,
}; █01.About Me
I'm a Senior Full Stack Developer based in Yerevan, Armenia, with 4+ years of experience shipping production web applications for international brands. I work across modern frontend frameworks (React, Next.js, Vue) and backend stacks (Laravel, PHP, Firebase).
At Concept Studio I've shipped a broad portfolio of production websites for global brands — across fintech, tourism, branding, Web3, real estate, hospitality, and cultural institutions. I consistently score Lighthouse 90+ and focus on performance, accessibility, and Core Web Vitals.
I care about shipping work that genuinely feels good to use — clean code, fast interfaces, and attention to the details that make the difference.
Karlen Nersisyan
Yerevan, Armenia
karlennersisyan814@gmail.com
+37493017153
Aug 8, 1999
Armenian
// languages
02.Experience
Senior Full Stack Developer
Concept Studio · Yerevan, Armenia
- ▹Shipped a broad portfolio of production websites for global brands across fintech, tourism, branding, Web3, real estate, hospitality, and cultural institutions.
- ▹Built responsive frontends with React, Next.js, Vue, and Tailwind CSS; consistently scored Lighthouse 90+.
- ▹Reduced average page load time by up to 30% through code-splitting, image optimisation, and Core Web Vitals tuning.
- ▹Developed backend services and REST APIs with Laravel and PHP, paired with MySQL; integrated Firebase for real-time features and auth.
- ▹Led SEO setup and ongoing technical SEO — structured data, sitemaps, Core Web Vitals, multilingual SEO — and worked extensively with Google products (Search Console, GA4, Tag Manager, PageSpeed Insights, Lighthouse, Maps, reCAPTCHA, Fonts).
- ▹Applied accessibility best practices (a11y) and collaborated daily with designers in agile cycles.
- ▹Heavy adoption of AI-assisted tooling — GitHub Copilot, Cursor, Claude / Claude Code, ChatGPT, Gemini, v0.dev, Lovable, Bolt, Windsurf, Codeium, Tabnine, Vercel AI SDK — to ship faster without compromising quality.
03.Skills
//Frontend
//Styling & Animation
//Backend & Data
//Google Stack
//AI Tooling
//Tooling & Focus
04.Projects
Hexens
Web3 cybersecurity platform with animated, performance-critical UI. Dark technical aesthetic with complex animations and Lighthouse 90+ scores.
Backbone Branding
Branding agency site with GSAP-driven storytelling and Next.js SSR. Pixel-perfect implementation with smooth scroll animations.
Polixis
Risk-intelligence platform with data-rich, multilingual layouts. Complex UI components and high performance standards.
Blinktransfers
Fintech transfers app with Firebase real-time features and secure auth flows. Mobile-first, performance-focused.
Armenia Travel
National tourism portal — SEO-optimised, high-traffic site showcasing destinations and travel guides across Armenia.
05.Catch the Bug
// 15 seconds · one click per bug · how senior are you?
0
15s
0
// instructions
Bugs will appear across the terminal. Click each one before it disappears. You have 15 seconds.
// no analytics, no points, just a little break before you say hi.
06.Contact
I'm currently open to new opportunities. Whether you have a question, a project in mind, or just want to say hello — my inbox is always open.
Say Hello