webfive

Full Stack Web3 Engineer

Full-stack Web3 engineer with 8 years of experience building and shipping production-grade applications. Skilled in TypeScript, Next.js, Python, FastAPI, Node.js, Express.js, Data pipelines, and ETL. Experienced with Rust smart contracts, Neo4j, RESTAPIs, and Google Cloud. Focused on scalable architecture, observability, and developer tooling.


Experience: 4 years

Yearly salary: $10,000

Hourly rate: $50

Nationality: 🇱🇹 Lithuania

Residency: 🇱🇹 Lithuania


Experience

Software Developer
Tapestry
2024 - 2025
Designed, audited, and deployed Rust smart contracts for staking, NFT minting, and DeFi protocols, optimizing for gas efficiency, security, and performance in production blockchain environments. Profiled and optimized Rust and TypeScript code paths, improving application performance and end-to-end throughput by 30% and reducing page load latency to under 200 ms. Migrated services from Heroku to Render, achieving 58% cost reduction; deployed Next.js applications to Vercel and managed backend infrastructure with Supabase, PostgreSQL, Redis, and Fly.io, implementing CI/CD pipelines using GitHub Actions and Turborepo. Implemented application monitoring and observability by integrating Sentry, Prometheus, and Grafana to enable real-time error tracking, metrics collection, and alerting, improving system reliability and incident response. Maintained and developed open-source tools for deployment automation and full-stack development, including SupaFly (Supabase to Fly.io deployment) and Pocketwatcher (Next.js starter with PocketBase and shadcn/ui), reaching 170+ GitHub stars and supporting real-world developer workflows.
Frontend Developer
Refooro
2023 - 2024
Designed and implemented a responsive landing page and reusable React component library using Material UI, integrating animations and interactive elements to improve frontend performance, usability, and user experience across multiple internal tools. Translated and localized vehicle parts documentation and product content from English to French, ensuring accuracy and consistency while improving accessibility for international users. Delivered a high-performance, accessible full-stack platform by developing Node.js services for logging, user management, and analytics while leading frontend architecture, establishing UI quality standards, and conducting code reviews to ensure secure, production-ready delivery. Accelerated product development and content delivery by implementing technical features and supporting multilingual localization, improving accessibility and readiness for international users.
Backend Developer
Foster Marketplace
2020 - 2022
Designed and implemented a Rust-based backend architecture, integrating REST APIs to support seamless frontend communication and smart contract interaction in a blockchain environment. Implemented Docker-based containerization to standardize development environments and built Jenkins CI/CD pipelines to automate build, test, and deployment workflows from version control to production. Designed and implemented a multi-category auction system for an NFT marketplace, improving platform accessibility and supporting diverse digital asset communities.
Web Developer
Cingant
2018 - 2019
Collaborated with backend engineers to integrate React frontend components with RESTful APIs, ensuring reliable data exchange and seamless application functionality. Produced and maintained technical documentation and supported API integration with the game development team, improving cross-team communication and workflow efficiency. Managed and resolved development tasks using Jira, consistently delivering features on schedule and meeting project requirements. Developed and enhanced responsive frontend interfaces using React, JavaScript, and CSS, improving usability and overall user experience.

Skills

api
backend
blockchain
cloud-engineer
decentralize
ethereum
ethereumjs
firebase
front-end
full-stack
mongo
nextjs
openzeppelin
python
react
react-native
rust
security
solana
solidity
web3js
english