Full-Stack · AI · Cloud

I build polyvalent software, end to end.

Turning ambitious ideas into robust digital products — across web, mobile, cloud and AI.

About Me

WHO I AM

Jan Staszewicz

“AI doesn’t raise the bar — it reveals it. The future belongs not to more developers, but to the right ones.”

MSc student in Computer Science at ETH Zürich, specializing in Machine Intelligence. Strong interest in human interaction with technology — building digital systems that align with human nature. Founder, engineer, and problem solver. I also work closely with teams and individuals as a freelance developer and consultant, turning complex ideas into clean, impactful products.

Studied & worked with
ETH ZürichEPFLSwiss Defense Solutions
What I Do

SERVICES

Full-Stack Development

End-to-end web and mobile apps — from database and APIs to polished, responsive interfaces.

Next.jsReact NativeNode.jsPostgreSQL

AI Integration

Bringing LLMs and machine learning into real products — from OpenAI APIs to custom models.

OpenAIPyTorchRAG

Cloud & Infrastructure

Deploying, scaling and securing software on modern cloud platforms.

AWSSupabaseVercel

Consulting

Technical guidance, architecture reviews and product strategy for teams and founders.

ArchitectureStrategyCode Review
Selected Work

PROJECTS

01Founder

uvae

Led a cross-functional team from concept to implementation. Engineered full-stack software and raised CHF 6.3k from investors and institutions.

React NativeNode.jsPostgreSQL
02

Overtask

03

Reflectra

Technical Strengths

SKILLS

Frontend

ReactReact NativeNext.jsHTML / CSS

Backend

Node.jsREST APIsScala

AI / ML

PyTorchTensorFlowScikit-LearnOpenAIGymnasium

Data

PostgreSQLSQLFirebase

Cloud & Infra

AWSGoogle CloudSupabaseVercelK8s

Languages

PythonC / C++JavaJavaScriptScala

Spoken Languages

FrenchNative
EnglishFluent
GermanB2
PolishBasic
Curriculum Vitae

EXPERIENCE

Education

2018 — 2021

Swiss Gymnasium

Maturité

Swiss federal maturity certificate.

2021 — 2025

Bachelor's in Computer Science

EPFL

Comprehensive foundation in computer science with focus on software engineering and AI.

2025 — PresentNow

Master's in Computer Science

ETH Zürich

Major in Machine Intelligence and Minor in Big Data.

Work Experience

2025 — Present

Freelance Developer

Self-employed

Building full-stack web applications for clients, including Reflectra — an AI-powered journaling companion.

Next.jsOpenAIFull-StackFreelance
2022 — 2023

Innovation Intern

Swiss Defense Solution

Worked on a confidential innovation project integrating AI and robotics.

PythonC++AIRobotics
2025 — 2026

Semester Project — DIRB

ETH Zürich · Systems Group

Research project within the Systems Group (D-INFK) at ETH Zürich, exploring distributed and reliable systems.

SystemsResearchD-INFKETH Zürich
How I Work

PROCESS

01

First Contact

A quick call or message to understand your idea, scope and goals — no commitment.

02

Discovery

Understanding the problem, users and goals before a single line of code is written.

03

Architecture

Designing a clean, scalable system — the right stack, data model and structure.

04

Development

Building in tight iterations with regular check-ins, so you always see progress.

05

Deployment

Shipping to production, monitoring, and supporting the product as it grows.

Get in Touch

LET’S CONNECT

Available for freelance projects, consulting missions & technical partnerships.

Send Message
© 2026 Jan Staszewicz