Helsinki, Finland

Leevi Puntanen.
Full Stack Developer working on production web apps.

Full stack engineer and Computer Science student at the University of Helsinki. I ship web applications with clear UX and predictable performance using Next.js, Node.js, and TypeScript, adding AI only when it improves the product.

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Role

Full Stack Developer — Dream On Networks

Studies

Computer Science — University of Helsinki

In the field

Full Stack Developer | Dream On Networks Oy

Building frontend and backend features, keeping code maintainable and releases steady. Focus on predictable performance and straightforward UX.

StriveAI — Founder & Developer
Visit

AI-powered personal training platform in beta. Generates plans from goals, performance metrics, and recovery data.

Next.jsAI programsSaaS

Principles

Clear UX, simple architectures, measured performance, minimal motion.

Tooling

Next.js, React, Tailwind, Node.js, Prisma, PostgreSQL, OpenAI, Docker, CI/CD.

About

Straightforward software and clear UX.

I design and build web applications with maintainable code, measured performance, and straightforward user flows. I prefer simple solutions that stay reliable over time.

Day to day, I ship features across frontend and backend at Dream On Networks Oy using Next.js, Node.js, Prisma, and PostgreSQL. On the side, I'm building StriveAI to adapt training plans based on real usage data.

I study computer science at the University of Helsinki and keep refining my tooling, automation, and deployment practices to move fast without sacrificing quality.

Architectures that are easy to extend and maintain.

Interfaces that stay clear and fast—no clutter.

Performance and reliability checked, not assumed.

Motion only when it aids understanding.

Experience

Production work across frontend and backend.

2023 — Present

Full Stack Developer

Dream On Networks Oy

Full Stack | Next.js | Node.js | PostgreSQL

Shipping web applications across the stack with responsibility for reliability, performance, and maintainable code.

  • Build and refine Next.js/React frontends with accessibility and responsive behavior as defaults.
  • Design backend APIs and schemas with Node.js, Prisma, and PostgreSQL to keep systems predictable.
  • Work with product and design to deliver features to production and keep them operable.

Projects

Practical builds, AI when it is useful.

StriveAI

Design & Build

AI-powered personal training SaaS that generates workout programs from goals, performance, and recovery data. Built for everyday use.

Next.jsTypeScriptOpenAIPrismaPostgreSQLSaaS
GitHub

LaTeX Reference Handler

Design & Build

Web app to manage and share LaTeX references for small university groups. Keeps citations organized and collaboration simple.

Next.jsTypeScriptCollaborationAcademic
GitHub

Stack

Tools I reach for to build and ship.

Frontend

Next.jsReactTypeScriptTailwind CSS

Backend

Node.jsPrismaPostgreSQLREST/GraphQL

AI & Integrations

OpenAI APIsAI-powered workflowsAuth & payments

DevOps & Tooling

DockerCI/CDGitCloud workflowsVS Code

Contact

Open to roles, projects, and collaboration.

Send a short brief about the problem, timeline, and stack. I aim to reply quickly with next steps.

Email leevi.puntanen2@gmail.comDownload resume

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