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I'm Christian Khalil, a full-stack engineer with 4+ years of shipping production features in SaaS and fintech. I own features end-to-end, from architecture and GraphQL API design to NestJS microservices and CI/CD. I'm known for performance work: cutting initial load times by 60% via Next.js App Router migration, reducing JavaScript payloads through granular code splitting, and pushing Lighthouse scores from 36 to 75+. I also leverage AI tooling (Claude, Cursor) to ship faster and review smarter. I’m excited to drive features from scope to deployment, collaborating with design and cross-functional teams to deliver production-ready solutions.…I'm Christian Khalil, a full-stack engineer with 4+ years of shipping production features in SaaS and fintech. I own features end-to-end, from architecture and GraphQL API design to NestJS microservices and CI/CD. I'm known for performance work: cutting initial load times by 60% via Next.js App Router migration, reducing JavaScript payloads through granular code splitting, and pushing Lighthouse scores from 36 to 75+. I also leverage AI tooling (Claude, Cursor) to ship faster and review smarter. I’m excited to drive features from scope to deployment, collaborating with design and cross-functional teams to deliver production-ready solutions.

Christian Khalil

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm Christian Khalil, a full-stack engineer with 4+ years of shipping production features in SaaS and fintech. I own features end-to-end, from architecture and GraphQL API design to NestJS microservices and CI/CD. I'm known for performance work: cutting initial load times by 60% via Next.js App Router migration, reducing JavaScript payloads through granular code splitting, and pushing Lighthouse scores from 36 to 75+. I also leverage AI tooling (Claude, Cursor) to ship faster and review smarter. I’m excited to drive features from scope to deployment, collaborating with design and cross-functional teams to deliver production-ready solutions.…I'm Christian Khalil, a full-stack engineer with 4+ years of shipping production features in SaaS and fintech. I own features end-to-end, from architecture and GraphQL API design to NestJS microservices and CI/CD. I'm known for performance work: cutting initial load times by 60% via Next.js App Router migration, reducing JavaScript payloads through granular code splitting, and pushing Lighthouse scores from 36 to 75+. I also leverage AI tooling (Claude, Cursor) to ship faster and review smarter. I’m excited to drive features from scope to deployment, collaborating with design and cross-functional teams to deliver production-ready solutions.

Available to hire

I’m Christian Khalil, a full-stack engineer with 4+ years of shipping production features in SaaS and fintech. I own features end-to-end, from architecture and GraphQL API design to NestJS microservices and CI/CD. I’m known for performance work: cutting initial load times by 60% via Next.js App Router migration, reducing JavaScript payloads through granular code splitting, and pushing Lighthouse scores from 36 to 75+. I also leverage AI tooling (Claude, Cursor) to ship faster and review smarter. I’m excited to drive features from scope to deployment, collaborating with design and cross-functional teams to deliver production-ready solutions.

Skills

Experience Level

Expert

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Intermediate

Work Experience

Full Stack Developer at Agency Analytics

January 1, 2024 - Present

Reduced initial load times by 60% via Next.js App Router migration by refactoring routing patterns and optimizing server-side rendering to eliminate client-side bottlenecks. Extended platform by building new NestJS microservices and implementing OAuth 2 authentication enabling enterprise SSO for key accounts. Cut JavaScript payload by ~20s through granular code splitting and dynamic imports, achieving sub-3s interactive render across all routes. Designed scalable front-end component system and a type-safe GraphQL layer with reusable fragments, reducing frontend data bugs and onboarding time. Drove CI/CD improvements with Jest + Playwright, enabling 75% code coverage and blocking 95% of regressions before production.

Full Stack Developer at SCADS

January 1, 2023 - January 1, 2024

Migrated legacy React SPA to Next.js SSR, improving organic search visibility by ~300% and reducing page load time from 5.2s to 1.8s. Owned the end-to-end technical lifecycle as the sole web developer for decentralized applications, including architecture, deployment, and security. Integrated Web3 functionality (token swap interfaces and secure wallet transactions) and automated E2E testing with Cypress to reduce production regressions.

Full Stack Developer at Uma-lab

January 1, 2022 - January 1, 2023

Improved Core Web Vitals across 6 client sites by an average of 15%, maintaining 95+ Lighthouse scores through standardized performance and accessibility audits. Built a reusable component library reducing design-to-code time by 40% and established a single source of truth for design consistency. Implemented responsive interfaces for high-fidelity designs using Next.js and Tailwind CSS, delivering pixel-perfect layouts across devices.