KOSSOIT

Filip Gustavsson

Software Developer &
IT Consultant

I build modern web applications and lead IT projects. Specializing in React, TypeScript, and Web3 development for startups and enterprises.

ReactTypeScriptWeb3

What I Do

Helping businesses build great software and lead successful projects

Software Development

Building modern web applications with React, TypeScript, and Next.js. Specializing in Web3 frontends and responsive, performant user interfaces.

IT Consulting

Technical advisory and architecture review. Helping companies make informed technology decisions and optimize their development processes.

Project Leadership

Leading IT projects from conception to delivery. Managing teams, coordinating stakeholders, and ensuring projects stay on track.

Skills & Technologies

The tools and technologies I use to bring ideas to life

Frontend

ReactTypeScriptNext.jsJavaScriptHTML5/CSSAngular.js

Backend & Tools

Node.jsC#/.NETPythonMongoDBSQL ServerAzure DevOpsAWS

Web3 & Other

Rust@Solana/Web3.jsWebsocketsClaude CodeFHIRXML/JSON

Selected Work

A selection of projects I've worked on

Starlaunch - Web3 Launchpad & Gaming platformweb3

Starlaunch - Web3 Launchpad & Gaming platform

A decentralized Launchpad platform with wallet integration and token swapping. I was the Project lead & Tech Lead for building and maintaining the App

ReactRustSolanaAnchor
Lamdenweb3

Lamden

first end-to-end development friendly suite for blockchain applications. I was in charge of building the website with advanced SEO and Content Management System support

Next.jsTypeScriptCMSSEO
Aweria EMRenterprise

Aweria EMR

Modern Electronic Medical Record specialized for the Emergency Healthcare. I was responsible for building the new frontend and leading the development team

React.NETC#Websockets

About Me

I'm Filip Gustavsson, a software developer and IT consultant. I specialize in building modern web applications with React, TypeScript, and Web3 technologies.

With experience leading IT projects of various scales, I help companies build great software and make informed technology decisions. I've worked with startups and enterprises across Web3, fintech, and traditional tech sectors.

I believe in writing clean, maintainable code and building products that make a real difference.

What Clients Say

Feedback from people I've worked with

Filip delivered exceptional work on our Web3 project. His technical expertise and communication made the collaboration seamless.

Sam Bankman-Fried

FTX

A true professional who understands both the technical and business aspects of software development.

Bill Gates

Microsoft

Let's Build Something Together

Have a project in mind? Let's talk about how I can help.

Other ways to connect

Prefer email or social? Reach out directly through any of these channels.