Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am Tomasz Iwanski, a professional Full-Stack Engineer with 7+ years of experience designing and implementing web applications. I specialize in MERN stack using React and Node.js, with a strong focus on delivering efficient and scalable solutions. I have led cross-functional teams and launched GameFi and Metaverse projects, coordinating with designers, frontend, backend, and smart contract developers to achieve significant user growth and revenue gains. I work with clients from individuals to large enterprises and am committed to delivering high-quality software.…I am Tomasz Iwanski, a professional Full-Stack Engineer with 7+ years of experience designing and implementing web applications. I specialize in MERN stack using React and Node.js, with a strong focus on delivering efficient and scalable solutions. I have led cross-functional teams and launched GameFi and Metaverse projects, coordinating with designers, frontend, backend, and smart contract developers to achieve significant user growth and revenue gains. I work with clients from individuals to large enterprises and am committed to delivering high-quality software.

Tomasz Iwanski

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





I am Tomasz Iwanski, a professional Full-Stack Engineer with 7+ years of experience designing and implementing web applications. I specialize in MERN stack using React and Node.js, with a strong focus on delivering efficient and scalable solutions. I have led cross-functional teams and launched GameFi and Metaverse projects, coordinating with designers, frontend, backend, and smart contract developers to achieve significant user growth and revenue gains. I work with clients from individuals to large enterprises and am committed to delivering high-quality software.…I am Tomasz Iwanski, a professional Full-Stack Engineer with 7+ years of experience designing and implementing web applications. I specialize in MERN stack using React and Node.js, with a strong focus on delivering efficient and scalable solutions. I have led cross-functional teams and launched GameFi and Metaverse projects, coordinating with designers, frontend, backend, and smart contract developers to achieve significant user growth and revenue gains. I work with clients from individuals to large enterprises and am committed to delivering high-quality software.

Available to hire

I am Tomasz Iwanski, a professional Full-Stack Engineer with 7+ years of experience designing and implementing web applications. I specialize in MERN stack using React and Node.js, with a strong focus on delivering efficient and scalable solutions.

I have led cross-functional teams and launched GameFi and Metaverse projects, coordinating with designers, frontend, backend, and smart contract developers to achieve significant user growth and revenue gains. I work with clients from individuals to large enterprises and am committed to delivering high-quality software.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Web3 Full-Stack Engineer at AIS Technolobs

October 1, 2023 - August 1, 2025

Constructed and launched a groundbreaking GameFi and Metaverse platform, delivering a captivating experience for users to acquire, trade, and engage in strategic battles with Aavegotchis, resulting in a 200% increase in daily active users. Designed and implemented smart contracts for Aavegotchi’s core gameplay mechanics, including staking, rarity farming, and battling, resulting in a 50% increase in user engagement and a 30% boost in overall revenue within the first quarter of implementation. Led a team of designers and developers to launch the platform and improve UI/UX; conducted code reviews, authored technical documentation, and mentored junior developers to improve code quality and productivity.

Full-Stack Developer at Serokell

April 1, 2020 - September 1, 2023

Led development of high-profile projects, including a mobile app with 100,000+ downloads in the first month. Implemented automated testing, CI/CD pipelines, reducing release cycles by 50% and production bugs by 75%. Developed a training program for junior developers and improved onboarding time. Conducted code reviews, documented, and mentored to improve code quality and team productivity.

React Developer at InData Labs

September 1, 2019 - April 1, 2020

Collaborated with business analysts and software architects to design, develop, test, and maintain web applications using React, React Native, and NodeJS; achieved performance improvements and UX gains. Built robust React components (file uploader, advanced dropdowns, radios, checkboxes, date picker) and contributed to UI quality improvements and security enhancements.