Casper Kristiansson.

Casper Kristiansson

Hey there, I'm Casper

Co-Founder & CTO at Klimra

I’m a Stockholm-based technical co-founder and engineer. At Klimra, we’re building an AI operations platform for travel management companies, starting with email operations. I lead product and engineering, working across product decisions, architecture and implementation.

Alongside Klimra, I work as an engineering consultant at Scatterin, building cloud software for neutron and synchrotron experiments. It remains a substantial ongoing engagement, spanning AWS infrastructure, backend and frontend work with scientists and large experimental datasets.

Previously, I co-founded PKTraffic and built traffic-video collection and search infrastructure. I also build and operate independent software, including AtlasOS. I completed my MSc in Computer Science at KTH in 2026, with exchange studies at HKUST and Kyushu University.

Selected work

Historical PKTraffic website showing traffic-incident search
Spotlight

PKTraffic

Traffic-video infrastructure for collecting, storing and reviewing footage across roughly 3,000 highway cameras.

I co-founded PKTraffic while studying at KTH and built its collection pipeline, website and internal tools. The platform linked camera footage with traffic-event records so incidents could be located and reviewed.

Stream collection
Built recording and processing workflows for external camera streams, including unreliable feeds.
Video storage
Integrated storage and APIs to organize tens of terabytes of video and make recordings retrievable.
Incident review
Developed searchable incident views, footage-review tools and operational monitoring. The system captured approximately 45,000 traffic incidents.
PythonFFmpegSQLReact
Illustrative home-server setup on an oak shelf

AtlasOS

A private software suite for finance, media, consulting and personal tools, with native device clients and shared home-server infrastructure.

Self-hostingApplication architectureAccess controls
CPython Scanv1
// Dockerfile
FROM python:3.12.1-slim3.12.2-slimDockerfile
// .github/workflows/ci.yml
python-version: "3.12.1""3.12.2"workflow
// pyproject.toml
requires-python = "==3.12.13.12.2pyproject"
// .python-version
3.12.13.12.2.python-version
// runtime.txt
python-3.12.13.12.2runtime
Resolve latest stable patch
-FROM python:3.12.1-slim
+FROM python:3.12.2-slim
-python-version: "3.12.1"
+python-version: "3.12.2"

CPython Patch PR Action

A GitHub Action that updates supported CPython patch-version pins and opens a reviewable pull request.

TypeScriptGitHub Actions
Codex Usage Tracker — original portfolio artwork

Codex Usage Tracker

A local tool for importing Codex usage logs into SQLite and exploring them through a CLI and dashboard.

PythonSQLiteNext.js

pydantic-fixturegen

An open-source Python tool for generating reproducible test data from Pydantic models, dataclasses and TypedDicts.

PythonPydanticTesting

More projects

Earlier work, personal applications and prototypes.

Finance Tracker — original portfolio artwork

Finance Tracker

A personal finance workspace for transaction imports, account reconciliation, budgeting and cash-flow reporting.

ReactTypeScriptPython
EmberVault editor with note navigation and local-workspace controls

EmberVault

A browser-based notes application with local storage, rich-text editing and search, without a required account.

SvelteKitTypeScriptIndexedDB
Podcast Tracker — original portfolio artwork

Podcast Tracker

A podcast library that refreshes Spotify catalog metadata and tracks listening progress recorded in the application.

GraphQLAppSyncLambda+1
CloudCanvas — original portfolio artwork

CloudCanvas

An Excalidraw-based application with hosted workspaces, authentication and cloud persistence.

ReactAWSCognito+1
MovieBoxDB movie-browsing interface from the original project

MovieBoxDB

A movie discovery application with search, watchlists, favorites and a swipe-based selection interface.

FirebaseJavaScript
React Whiteboard Studio — original portfolio artwork

React Whiteboard Studio

A browser whiteboard exploring canvas interaction, undo/redo and local persistence.

ReactTypeScriptZustand+1
Kitgrid public documentation directory — section capture, 27 October 2026

Kitgrid

A documentation publishing tool that brings Markdown from multiple repositories into a shared hub.

AstroTypeScriptMarkdown
PostNord Plus desktop application showing batch image-adjustment controls

Batch Image Editor for PostNord Plus

An internal desktop application for preparing batches of images at Personalstiftelsen PostNord Plus.

PythonPyQtOpenCV
WeatherBrain public demonstration interface; measurements are placeholders

WeatherBrain

A university prototype combining IoT weather measurements with experimental machine-learning forecasts.

TensorFlowAzureIoT
Ecoloop Classification Tool — original portfolio artwork

Ecoloop Classification Tool

A web prototype for sulfide-soil classification, developed in collaboration with Ecoloop.

ReactTypeScriptAPIs
Historical TVShowNetwork WordPress article layout

TVShowNetwork

A WordPress site I built in high school to publish articles about television and film.

WordPressHTMLCSS+1

Experience

  • Klimra

    Aug 2024 - Present

    Co-Founder & CTO

    Co-Founder & CTO of Klimra, building an AI operations platform for travel management companies. Email operations is the first product; additional operational workflows are planned. I lead product and engineering across the interface, backend and cloud infrastructure.

    • Translate travel-team workflows into product requirements and architectural decisions.
    • Build across frontend, backend and infrastructure while developing the first product with TMC design partners.
    • Previously built eligibility, taxi-booking and trip-tracking workflows for delayed train journeys; this was an earlier product.
    Product engineeringAWSPythonTypeScriptReactTerraform

  • Scatterin

    Feb 2023 - Present

    Early Engineer / Engineering Consultant

    Ongoing engineering consulting at Scatterin, building cloud software for neutron and synchrotron experiments. I work across substantial parts of the AWS infrastructure, backend and frontend, in collaboration with scientists.

    • Build workflows for managing hundreds of gigabytes of experimental data.
    • Develop interfaces and cloud services for analysis while experiments are in progress.
    • Turn scientists’ analysis methods into application capabilities, with deployment and developer tooling to support the work.
    AWSPythonReactTerraformScientific data

  • PKTraffic, LLC

    2020 - Sep 2024

    Co-Founder & CTO

    I co-founded PKTraffic while studying at KTH and built its traffic-video collection, storage and search platform. The system covered roughly 3,000 Florida highway cameras and recorded approximately 45,000 traffic incidents.

    • Developed collection pipelines, storage integration, APIs, the website and internal footage-review tools.
    • Worked with unreliable camera streams and tens of terabytes of stored video.
    • The company generated no revenue during my involvement; development involvement ended in September 2024.
    PythonFFmpegSQLReactVideo infrastructure

  • Amaceit

    Jan 2023 - Jun 2023

    Bachelor Thesis

    I completed a thesis titled "Cloud Computing Pricing and Deployment Efforts" investigating the landscape of public and private cloud computing services. The thesis aimed to compare the pricing and implementation efforts of various cloud providers, with a specific focus on Google GCP, Microsoft Azure, and Amazon AWS.

    Serverless FrameworkAPI DevelopmentFull-Stack DevelopmentServerless ComputingRedux.js

  • Northvolt

    Jun 2022 - Aug 2022

    Backend Software Engineer

    Contributed to a task-management system for factory-machine maintenance at Northvolt, with GraphQL endpoints in Go, DynamoDB data modeling and Terraform infrastructure.

    • Developed GraphQL endpoints using Go
    • Worked on data modeling in DynamoDB
    • Implemented Infrastructure as Code (IaC) using Terraform
    • Developed serverless computing solutions using AWS Lambda
    Serverless FrameworkInfrastructure as code (IaC)API DevelopmentMicroservicesDatabasesCI/CD

  • Personalstiftelsen PostNord Plus

    2021

    Software Developer

    Built an image editor and a mass-email tool for Personalstiftelsen PostNord Plus to reduce repetitive staff workflows.

    • Developed desktop interfaces and processing logic with Python and PyQt.
    • Trained and supported staff using the applications.
    PythonPyQtOpenCVDesktop applications

Education

  • KTH Royal Institute of Technology

    2023 - 2026

    Master's Degree, Computer Science

    Completed my MSc in Computer Science at KTH in 2026. My master’s thesis compared storage layouts and compression for scientific detector data on AWS S3.


  • Kyushu University

    Mar 2024 - Aug 2024

    Exchange Semester

    Exchange semester in Japan during my master’s studies at KTH.


  • KTH Royal Institute of Technology

    2020 - 2023

    Bachelor's Degree, Computer Engineering

    Completed a BSc in Computer Engineering at KTH. My bachelor’s thesis, co-authored with Fredrik Lundström, compared cloud pricing and deployment effort using a ticketing application.


  • Hong Kong University of Science and Technology

    Aug 2022 - Jan 2023

    Exchange Semester

    Exchange semester at HKUST in Hong Kong during my bachelor’s studies.


  • Thorildsplans Gymnasium

    2017 - 2020

    Information and Media Technology

    Completed high-school studies in Information and Media Technology in Stockholm. Received a Sten Vigrens Stipendiefond scholarship for academic achievement.


Skills

AWS Services

AWS Lambda logoAWS Lambda
Amazon Bedrock logoAmazon Bedrock
AWS Amplify logoAWS Amplify
AWS CDK logoAWS CDK
AWS Identity and Access Management (IAM) logoAWS Identity and Access Management (IAM)
Amazon Virtual Private Cloud (Amazon VPC) logoAmazon Virtual Private Cloud (Amazon VPC)
Amazon DynamoDB logoAmazon DynamoDB
Amazon S3 logoAmazon S3
AWS CloudFormation logoAWS CloudFormation
Amazon API Gateway logoAmazon API Gateway
AWS AppSync logoAWS AppSync
Amazon SQS logoAmazon SQS
Amazon Simple Notification Service (Amazon SNS) logoAmazon Simple Notification Service (Amazon SNS)
Amazon API Gateway (WebSocket API) logoAmazon API Gateway (WebSocket API)
Amazon EC2 logoAmazon EC2
Amazon ECS logoAmazon ECS
Amazon Elastic Container Registry (Amazon ECR) logoAmazon Elastic Container Registry (Amazon ECR)
Amazon RDS logoAmazon RDS
Amazon Route 53 logoAmazon Route 53
Amazon CloudFront logoAmazon CloudFront
Amazon CloudWatch logoAmazon CloudWatch
AWS Systems Manager (SSM) logoAWS Systems Manager (SSM)
Amazon Cognito logoAmazon Cognito
AWS Fargate logoAWS Fargate

Programming Languages

Python badge
C badge
Java badge
JavaScript badge
TypeScript badge
Go badge
Elixir badge
Clojure badge
Rust badge
PHP badge

Front-End Stack

React badge
Next.js badge
Astro badge
Svelte badge
Vite badge
Framer Motion badge
React Hook Form badge
Zod badge
Zustand logoZustand
Redux badge
Redux Toolkit badge
Redux Saga badge
Tailwind CSS badge
shadcn ui badge
MUI badge
DaisyUI badge

Backend & APIs

GraphQL badge
Serverless Framework badge
OpenAI logoOpenAI
Firebase badge
FFmpeg badge
Pydantic badge
PostgreSQL badge
MySQL badge
SQLite badge

DevOps & Tooling

Docker badge
LocalStack logoLocalStack
Terraform badge
Pulumi badge
SST badge
GitHub Actions badge
Git badge
ESLint badge
Prettier badge
Playwright logoPlaywright

Certifications

Elements of AI - Building AI

University of Helsinki

Elements of AI - Building AI

Elements of AI - Introduction to AI

University of Helsinki

Elements of AI - Introduction to AI

CCNA: Enterprise Networking, Security, and Automation

Cisco

CCNA: Enterprise Networking, Security, and Automation

CCNA: Switching, Routing, and Wireless Essentials

Cisco

CCNA: Switching, Routing, and Wireless Essentials

Research & theses

Title page of From Experiment to Insight, rendered from the actual thesis PDF

From Experiment to Insight

Comparing storage approaches for scientific detector data on AWS S3.

Cloud Computing Pricing and Deployment Efforts — thesis cover

Cloud Computing Pricing and Deployment Efforts

A KTH bachelor's thesis comparing cloud costs and deployment effort, using a ticketing application as a case study.

Awards & grants

Anna Whitlocks Minnesfond - Award for exchange studies in Japan
Scandinavia-Japan Sasakawa Foundation - Award for exchange studies in Japan
Sten Vigrens Stipendiefond - Award for high grades for Highschool education in Information and Media Technology