Aleksei Deriushev - Senior Front-end Engineer

Aleksei Deriushev

Senior Front-end Engineer

8+ years crafting high-performance web, mobile applications

📍 Barcelona, Spain ✉️ derushev.aleksei@gmail.com

TL;DR

Spoten - top navigation iOS app
Lead developer of Spoten Editor's Choice in App Store, Top-10 in Navigation category, 5.7M downloads
Haqqex & Haqabi - crypto DEX and mobile wallet
Leading role in DEX crypto market Haqqex & mobile app wallet Haqabi
Rakuten TV website - high-load streaming platform
Solo frontend responsibility for Rakuten TV website Top 100 global streaming services, 3 mln monthly users

About Me

Senior Software Engineer with 8+ years of experience delivering high-performance web, mobile applications. Expert in React, React Native, TypeScript, and Node.js, with a strong background in both front-end, back-end ecosystems. Don't mind contributing into QA, DevOps things, usually setting them up for my personal projects at least.

Proficient across diverse domains: streaming platforms, fintech, foodtech, blockchain, rich mapping functionality, influencer marketing, and e-commerce. I combine technical expertise with adaptability, having worked in startups or enterprises, from foodtech to fintech. I used to be a lead developer or a team lead depending on the target. Having strong abilities to pick things up quickly, troubleshoot, and deliver value in complex environments.

I would believe that I'm the one who easily gets new people, projects - being cheerful and proactive. I'm not that concerned about the legacy code, damned project etc. Over the years I have come to think more from the business perspective, not being that idealistic but instead really being passionate about bringing the target value, moving forward and developing myself, surrounding colleagues, business.

Core Skills

Frontend

TypeScript React React Native Next.js Redux MobX Zustand Styled-components Tailwind TanStack Query Expo Electron Zod

Backend

Node.js Express NestJS Prisma GraphQL WebSockets SQL Firebase AWS RPC

Testing & Tools

Vite Webpack Turborepo Cypress Playwright Jest Docker Figma Sentry Rollbar Youbora

DevOps & Cloud

Kubernetes Docker AWS CI/CD GitHub Actions GitLab CI

Professional Experience

04/2025 - 11/2025

Senior Front-End Engineer

UXRocket · Remote, UAE

📱 Analytics tools platform

  • In charge of making/supporting/developing React Native, Flutter SDK's
  • Implemented the most up-to-date features of this domain, such as: automatic events markup, A/B tests, mobile visor functionality and many others making the product a heavy-weight competitor in the division
React Native · Flutter · TypeScript · Zustand · Firebase · TRPC · IAP
06/2023 - 04/2025

Front-End Engineer

Rakuten TV · Barcelona, Spain

📺 Streaming platform (TVOD/AVOD)

  • Improved website performance, UX, and scalability for millions of users
  • Designed and implemented new features and optimizations across the platform
  • Gained deep insights into streaming platform architecture and under-the-hood systems
React · Redux · TypeScript · Styled-components · Next.js · Docker · Cypress · Playwright · Jest · Figma
04/2022 - 06/2023

Front-End Engineer

Aldrin · Remote, US

💰 Blockchain fintech

  • Built and maintained Web3 SDK and integrated third-party wallets
  • Worked on Solana-based pools, swaps, and DeFi features
TypeScript · Web3.js · Node.js
03/2019 - 04/2022

Senior Front-End Engineer

NRDS · Remote, US

📍 Rich map-feature mobile app

  • Developed and optimized complex mobile features in map-driven applications
  • Solved performance-critical challenges in large-scale apps
  • Integrated third-party APIs and SDKs
  • Contributed to leadership tasks and knowledge sharing within the team
React Native · Expo · Firebase · React · MobX · TypeScript · NestJS · Prisma
11/2018 - 03/2019

Senior Front-End Engineer

IT X100 · Moscow, Russia

🍽️ Food tech platform

  • Addressed complex performance issues guided by Lighthouse audits
  • Facilitated knowledge-sharing sessions
React · Redux · GraphQL · TypeScript
06/2016 - 11/2018

Senior Front-End Engineer

LabelUp · Moscow, Russia

📢 Influencer Marketing Platform

  • Built and scaled the entire front-end ecosystem
  • Introduced performance enhancements and Agile-driven processes
  • Conducted onboarding, interviews, and mentoring
React Native · React · Redux · WebSockets · TypeScript · GraphQL
03/2015 - 06/2016

Middle Full-Stack Engineer

iTechArt Group · Minsk, Belarus

🧳 Chrome extension for corporate travel

  • Gathered requirements, coordinated with stakeholders, and led small team efforts
  • Introduced GraphQL into the workflow
  • Delivered complex performance-critical features
Python · Django · React · Redux · Flowtype · Firebase · AWS
01/2012 - 03/2015

Back-End Engineer

Enaza · Perm, Russia

🎮 Software distribution platform

  • Contributed to backend systems powering e-commerce for online software & games
PHP · Yii Framework · MySQL

Personal Projects

Control Manager

Team task management app for seamless collaboration. Create, assign, and track tasks in real-time with your team.

View Project →

N3WS

News in 3 Words - Ultra-concise headlines from Russia, Spain, and around the world powered by AI.

View Project →

Palabrino

Learn Spanish vocabulary through visual learning. Match Spanish words with images in an engaging language learning game.

View Project →

Exchange Rate Tracker

Track live RUB/USDT/EUR, compare direct vs indirect routes with real savings, view history charts, and convert instantly (React Native + Firebase).

View Project →

Get In Touch

I'm always open to discussing new opportunities, interesting projects, or just having a chat about technology.