Tartu, Estonia · open to opportunities

Kaspar Kliimask

Full-stack Engineer

Backend-focused full-stack engineer specializing in Java & Spring Boot with Angular/React on the frontend. I work across scientific, enterprise, and public-sector systems — the data-heavy, distributed kind — with a strong focus on system design and practical problem solving.

View experience → Résumé ↓

engineer profile

Backend systems

Java, Spring Boot, Node.js, PostgreSQL

Product interfaces

React, Angular, Next.js, TypeScript

AI workflows

MCPs, Codex, Claude Code, agents

// 01 — PROFILE

Who I am & what I use

// about

I'm a backend-focused full-stack engineer based in Tartu, Estonia. I like coding.

I'm comfortable taking sole responsibility for a software system, though I have the most experience working as part of a team. I adapt quickly, value continuous learning, and care about shipping things that hold up in production.

languages

01Java
02TypeScript
03JavaScript
04Python
05C# · Bash

frameworks

01Spring Boot
02Angular
03React
04Next.js
05Node.js · Vue

data & infra

01PostgreSQL
02SQL Server
03Docker
04AWS
05Microservices

tools & ai

01Git · Jira
02MCPs
03Unix
04Claude Code
05Codex · AI Agents

// 02 — EXPERIENCE

Where I've worked

idxrolewhat I didperiod

Full-stack DeveloperAutlo OÜ

Partner-facing web tools for automated parking systems. Backend APIs & business logic in Node.js/TypeScript, PostgreSQL schemas, React/Next.js frontends, Docker.

NodeTypeScriptReactPostgres

2025

Full-stack DeveloperFinestmedia

Public-sector systems for Omniva & RIA. Microservices, message queues, distributed databases; diagnosed and resolved concurrency issues in a sharded system. Presales technical support.

JavaSpring BootAngularSQL

2023–24

Full-stack DeveloperPlaytech

Consolidated four Atlassian JIRA instances into a single platform for 4,000+ users via a complex custom plugin; migrated to AWS Data Center. Earned a team Excellence Award.

JavaSpring.NET (C#)AngularAWS

2019–22

Full-stack DeveloperPopseed OÜ

Built an internal web system as a freelancer.

PHPVue.jsMySQLSass

2019

05 — featured build

Software Programmer

Tartu Observatory

Scientific computing for cosmology research. Built a Java/Processing 3D visualization tool handling millions of galaxy coordinates via dynamic loading, and supported large-scale mathematical analysis for the research team.

JavaFortran (FFT)PythonSQL

2014–17