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SPYROS LEFKADITIS

Available to hire

I’m a senior Full-Stack Engineer with 10+ years of experience shipping web and mobile products across fintech, travel, media, and healthtech.

About

I’m a senior Full-Stack Engineer with 10+ years of experience shipping web and mobile products across fintech, travel, media, and healthtech. I’ve worked in both large enterprise environments and fast-moving startups, with a focus on building secure, high-performance user experiences end to end.

My core strengths are React, Next.js, and TypeScript, and I’m comfortable spanning front-end, APIs, and data layers. I regularly use AI coding assistants (such as Cursor, Claude, and others) to speed up delivery while maintaining strong engineering practices, and I’ve led key initiatives like design systems, MVP builds from scratch, platform migrations, and feature development across multiple production environments.

  • 12 years' experience
  • Joined September 2026

Industry experience

  • Software & Internet
  • Financial Services
  • Travel & Hospitality
  • Media & Entertainment
  • Healthcare

Work experience· 12 roles

Founding Full-Stack Developer · Unbound LivingJul 2025 – Dec 2025 · 6 mos

Co-architected and shipped the Unbound Living MVP from scratch in six months without a dedicated product team, collaborating directly with founders on both product and technical decisions. Built a user-facing web app (Next.js, Supabase) and an internal admin portal (Next.js, Refine) for patient onboarding, booking, and AI-assisted health reports. Owned the user-facing application and led an internal React Native/Expo iPad meditation app with native audio playback, video recording, and file syncing.

Senior Full-Stack Developer · EurostarFeb 2023 – Present · 3 yrs 10 mos

Developed customer-facing features on Eurostar.com using Next.js, React Native, and TypeScript within a microservice architecture. Worked with federated GraphQL services and contributed to delivering a newly built design system applied across multiple applications, following front-end best practices.

Full-Stack Developer · Super PaymentsAug 2022 – Nov 2022 · 4 mos

Built customer-facing features in a greenfield React Native cashback app using TypeScript, Apollo, Storyblok CMS, and GraphQL. Integrated third-party SDKs including Iterable, Segment, and AppsFlyer.

Full-Stack Developer · Master VenturesMay 2022 – Nov 2024 · 2 yrs 7 mos
Full-Stack Developer · WorldRemitOct 2021 – Aug 2022 · 11 mos
Front-End Developer · Sky (NOW TV)Apr 2021 – Oct 2021 · 7 mos
Full-Stack Developer · NewsUKApr 2018 – Mar 2021 · 3 yrs
Front-End Developer · Sky (Sky Go)Sep 2017 – Mar 2018 · 7 mos

Education

BSc Computing with Business Management · Kingston University2005 – 2008

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