Kaspar L. Palgi

Senior Full-Stack Developer · API & IoT Specialist · AI Consultant

London ⇄ Canarias ⇄ Estonia — constantly on the move since 2004.

Profile

Senior full-stack engineer with 25+ years shipping software. I go deep in Svelte / SvelteKit, TypeScript and Node.js, and I’m in my element with anything API — blazing fast with Hasura and GraphQL (I wrote the Packt book on it). Cross-platform mobile in Flutter with my long-time partner Eusebiu; Python or PHP when a job calls for it; Docker for deployment.

On the hardware side I specialise in ESP32 / ESP-IDF, C++ and hands-on product development — from soldering to shipped device. Lately I lead teams and businesses into agentic AI and Claude Code, turning it into measurable, secure, bug-free delivery.

I believe in the finest stack and honest engineering — TDD, pair programming, Agile, relentless code quality — to hand you a backend, API and admin panel that’s up to 10× faster to build on. Happy to own a project solo or pair with your existing developers.

Experience

Freelance Developer & Analyst

Feb 2016 – Present

CrewNew.com — Agency of Freelancers · Remote · UK & EU

Ship production full-stack web apps end-to-end for UK and European clients — SvelteKit, TypeScript, Node.js, Hasura/GraphQL, PostgreSQL, Docker.
Act as developer and software analyst: scoping, architecture, and hands-on delivery, often pair-programming with clients’ in-house teams.

Co-Founder & Development

Feb 2022 – Present

Klarity — Automatic Time Tracking · Remote

Co-founded and build the only truly automatic AI time-tracking, management and productivity app for developers and other professionals.
Own the full stack from data pipeline to UI, plus the AI features that turn raw activity into useful, private insight.

Backend Developer

Aug 2009 – Present

PVCfactory.ee · Estonia

Long-running backend engagement powering the online ordering and production side of a manufacturing business.

Author — “Building GraphQL Backend with Hasura”

May 2022 – Sep 2023

Packt Publishing · Remote

Wrote a full technical book teaching backend and API development with Hasura, GraphQL and PostgreSQL (ISBN 978-1-80461-577-5).

Cloud Backend & Databases Teacher

Mar 2023 – Feb 2024

Tallinna Polütehnikum · Tallinn, Estonia

Taught cloud-services backend, PostgreSQL, GraphQL and Hasura to vocational IT students.

Backend Developer, Analyst & Recruiter

May 2021 – Sep 2022

Schoolify Deutschland GmbH · Remote · Germany

Delivered backend work and requirements analysis, and helped recruit and vet developers for the team.

Co-Founder, Project Manager & Developer

Nov 2018 – Sep 2019

Sayv — Sustainable Living · Remote

Co-founded a sustainability venture, leading both the product roadmap and the coding.

IT Department Manager

Oct 2006 – Mar 2007

Nordic Digital AS · Estonia

Ran marketing strategy and campaigns for IT hardware sold across 7 retail shops.

Founder & IT / Networking Specialist

Feb 1999 – Jun 2004

Laboramus OÜ · Estonia

Founded and ran an IT services firm: management, support, hardware repair, network build-out and marketing.

Selected work

Building GraphQL Backend with Hasura

Author · Packt Publishing, 2023. A complete guide to production-grade GraphQL backends with Hasura, PostgreSQL and authorisation — from schema to deployment.

Education

University of Tartu

1999 – 2003

Hugo Treffner Gymnasium

1996 – 1999

IT & Physics

Schule Schloss Salem

1997 – 1998

International Baccalaureate (IB), Economics