Senior Frontend Developer
Hey there. I'mALVARO
TERAN
Building fast, polished web and Web3 products with React, Next.js, and TypeScript.
BUILDING WEB AND WEB3 PRODUCTS WITH REACT, TYPESCRIPT, AND CLEAN, FAST FRONTEND ENGINEERING.
I'mAlvaro,aSpanishdeveloperbasedinLondon.Ibuildfast,polishedwebandWeb3productswithReact,Next.js,andTypeScript.WhenI'mnotshippingcode,I'mtrainingBrazilianjiu-jitsu.
Years of experience shipping production web and Web3 products — from a live crypto exchange to DeFi platforms and client sites.
Core Expertise
FRONTEND ENGINEERING
Building production web apps with React, Next.js, and TypeScript — component architecture, state management, and code that stays maintainable as products grow.
WEB3 & DAPP DEVELOPMENT
Wallet integrations, smart-contract frontends, and EVM ecosystem tooling — turning protocols into products people can actually use.
UI ENGINEERING & DESIGN SYSTEMS
Pixel-perfect builds with Tailwind CSS, motion and interaction design, and reusable component systems that keep interfaces consistent.
PERFORMANCE & SEO
Fast Core Web Vitals, server-side rendering, structured data, and technical SEO — sites that load quickly and get found.
PAYMENTS & INTEGRATIONS
Stripe payments, third-party APIs, and analytics wiring — connecting products to the services that power them.
RAPID PROTOTYPING
From idea to working product fast — complete prototypes designed, built, and shipped in days, not months.
Featured Work
SIDESHIFT- Current
Crypto Exchange
DRAGONSTAKE
Staking Platform
OLIVETREE
DeFi Platform
WISE ATHENA
AI Pricing PlatformCASE STUDIES
SIDESHIFT — CRYPTO EXCHANGE
Senior frontend work on a live, high-traffic crypto exchange — shipping new features and interface improvements to a product handling real money around the clock.
Challenge
Shipping fast on a production exchange where every release touches real user funds and downtime is not an option
Solution
Type-safe React and TypeScript architecture, careful incremental releases, and performance-focused UI engineering
DRAGONSTAKE — STAKING PLATFORM
Design and build of the web presence for a proof-of-stake validator operation — communicating complex staking infrastructure clearly to token holders.
Challenge
Presenting technical validator infrastructure in a way that builds trust with delegators across multiple networks
Solution
A clean, fast marketing site built from scratch with React and modern tooling, focused on clarity and credibility
OLIVETREE — DEFI PLATFORM
Frontend build for a DeFi finance platform — taking the product from concept to a polished, production-ready web experience.
Challenge
Making decentralized finance approachable for users who are new to the space without dumbing down the product
Solution
An intuitive interface with clear information hierarchy, built with React and a component-driven design system
WISE ATHENA — AI PRICING PLATFORM
Product frontend for Wise Athena's AI pricing platform — helping revenue teams at large CPG companies make pricing and promotion decisions.
Challenge
Presenting complex AI pricing models in an interface that revenue teams can understand, trust, and act on
Solution
Clear, data-heavy product interfaces built with React, working in agile teams across the financial and IT sectors
Senior frontend work on a live, high-traffic crypto exchange — shipping new features and interface improvements to a product handling real money around the clock.
Shipping fast on a production exchange where every release touches real user funds and downtime is not an option
Type-safe React and TypeScript architecture, careful incremental releases, and performance-focused UI engineering
Design and build of the web presence for a proof-of-stake validator operation — communicating complex staking infrastructure clearly to token holders.
Presenting technical validator infrastructure in a way that builds trust with delegators across multiple networks
A clean, fast marketing site built from scratch with React and modern tooling, focused on clarity and credibility
Frontend build for a DeFi finance platform — taking the product from concept to a polished, production-ready web experience.
Making decentralized finance approachable for users who are new to the space without dumbing down the product
An intuitive interface with clear information hierarchy, built with React and a component-driven design system
Product frontend for Wise Athena's AI pricing platform — helping revenue teams at large CPG companies make pricing and promotion decisions.
Presenting complex AI pricing models in an interface that revenue teams can understand, trust, and act on
Clear, data-heavy product interfaces built with React, working in agile teams across the financial and IT sectors
Realproducts,shippedandrunninginproduction—fromalivecryptoexchangetoDeFiplatformsandclientsitesacrosstheWeb3ecosystem.
Years of Frontend Experience
Senior frontend engineering across production web and Web3 products, from startups to a live crypto exchange.
Years of Frontend Experience
Senior frontend engineering across production web and Web3 products, from startups to a live crypto exchange.
Conversion Rate Increase
Reworking key sections and user flows lifted the conversion rate of the pages — keeping more users engaged and using the apps for longer.
Conversion Rate Increase
Reworking key sections and user flows lifted the conversion rate of the pages — keeping more users engaged and using the apps for longer.
SEO Performance Increase
Applying technical SEO changes — performance, structure, and metadata — increased the SEO performance of the pages by 200%.
SEO Performance Increase
Applying technical SEO changes — performance, structure, and metadata — increased the SEO performance of the pages by 200%.
Skills & Experience
SENIOR FRONTEND DEVELOPER
SideShift
Apr 2024 — Current
FRONTEND DEVELOPER
On the User
Jul 2023 — Apr 2024
FRONTEND DEVELOPER
CryptoPlaza
Sep 2022 — Jul 2023
JUNIOR FRONTEND DEVELOPER
Wise Athena
Feb 2022 — Sep 2022
JUNIOR FULL STACK DEVELOPER
On the User
Feb 2020 — Oct 2021