Emil Karlsson - Data Engineer and Full-Stack Developer workspace with modern development tools

Welcome, I'm Emil

I build smart, data-driven solutions using modern tech and AI. From automating workflows to turning raw data into insights, I help people and teams work smarter.

I have a special passion for hockey analytics—using data, automation, and machine learning to uncover insights and drive better decisions in sports.

I explore how technology is reshaping the way we work — and how much one person can create with the right tools.

Want to do more with your data or automate something tricky? Let's talk.

What I Do

Data Engineering & Analytics

Building scalable data pipelines, ETL processes, and analytics platforms. Expertise in modern data stack technologies and cloud infrastructure.

Python • SQL • dbt • Databricks • Azure • Snowflake • AWS

Full-Stack Development

Creating modern web applications with seamless user experiences. From responsive frontends to robust backend APIs and databases.

React • TypeScript • Node.js • PostgreSQL

Automation & Integration

Streamlining business processes with intelligent automation. Workflow automation, API integrations, and custom tooling solutions that eliminate manual work.

n8n • REST APIs • Zapier • Workflow Automation

Combining technical expertise with business understanding to deliver solutions that drive real value. From concept to deployment, I help teams build better, faster, and more efficient systems.

View My Portfolio →

Selected Career Projects

Self-Hosted Development Infrastructure - Coolify & Hetzner Platform

Complete self-hosted development infrastructure using Coolify on Hetzner cloud servers, enabling rapid Docker container deployment for tools like n8n, MageAI, Appsmith, and Grafana at just 250 SEK monthly cost.

AI-Powered Development Workflow - Claude MCP & React Prototype Platform

Comprehensive AI development workflow using Claude Sonnet 4 through MCP server, connecting multiple data sources to generate functional React prototypes from strategy to deployment in days.

The Unnamed Roads - Creative Portfolio & Client Landing Platform

Modern creative portfolio and client landing platform built with Astro, featuring Slack integration for seamless communication. Professional web presence showcasing creative services with automated client onboarding workflow.

The Hockey Analytics - Sports Intelligence & Data Analysis Platform

Professional hockey analytics platform built with Astro, featuring Slack integration for team communication and automated reporting. Comprehensive sports data analysis and intelligence platform for hockey performance optimization.

AI Workflow Automation with Notion - Prompt Engineering & Productivity Optimization

Advanced AI workflow organization and automation using Notion for prompt engineering and productivity enhancement. Comprehensive AI tool management system specializing in ChatGPT, Copilot, and workflow automation.

Automated Hockey Analytics Pipeline - AI & LLM Integration with Mage AI Data Processing

Fully automated hockey analytics platform combining AI, LLMs, and advanced data engineering. Complete pipeline automation using Mage AI, DuckDB, and interactive dashboards for comprehensive sports analysis.

Multilingual Survey Analytics - AI-Powered NLP for Customer Insight Intelligence

Advanced multilingual survey analysis platform using AI translation and NLP categorization. Comprehensive customer insights solution leveraging Databricks, Power BI, and machine learning for survey intelligence.

AI-Powered Customer Support Analytics - Large Language Models for ServiceNow Intelligence

Advanced AI and LLM integration for customer support optimization using ServiceNow data transformation. Intelligent ticket categorization and customer insights platform specializing in AI analytics.

Unified Data Ecosystem Architecture - Enterprise Data Lake & Business Intelligence Platform

Comprehensive enterprise data ecosystem with scalable data lake architecture using Databricks and Power BI. Advanced data engineering and business intelligence solution delivering actionable insights and data governance.

Customer-Centric B2B Platform Strategy - Outside-In Data Analytics for Investment Decisions

Strategic B2B platform transformation using customer-centric data analytics and user insights mapping. Advanced decision-making framework using Databricks, Power BI, and Python for business intelligence solutions.

Modern Data Stack Architecture - Cost-Effective Cloud Infrastructure for $10/Month

Complete guide to building scalable modern data stack using cloud-native tools and serverless architecture. Affordable data engineering solution demonstrating efficient data processing, automation, and visualization.

Customer-Focused KPI Analytics Platform - Real-Time Performance Intelligence & Data Integration

Advanced KPI tracking and management platform with real-time alerts and comprehensive data integration. Customer experience analytics solution using Snowflake, Databricks, and Power BI technologies.

Hockey Analytics Dashboard - Advanced Sports Data Visualization & Performance Intelligence

Comprehensive hockey performance analytics platform using Azure cloud infrastructure and Python data engineering. Advanced sports analytics dashboard specializing in hockey insights and performance metrics.

Data-Driven IT Operations Optimization - Advanced Analytics for Proactive Service Management

Enterprise IT operations transformation using advanced data analytics and business intelligence. Historical data pattern analysis for proactive optimization, specializing in ServiceNow, Power BI, and SQL analytics solutions.

Quiz-Driven User Engagement Platform - UX Research & Conversion Optimization

Advanced user engagement platform development with quiz-driven conversion strategies, comprehensive prototype testing, and iterative design specializing in user feedback analysis and customer insights.

Digital Ticket Sales Platform - Django Python & Bootstrap Development

Modern ticket sales solution with Django backend and Bootstrap frontend, featuring streamlined UX design for seamless event management and digital ticket processing.

TUVA Digital Neighborhood Watch Platform - Swift & Java Development

Complete neighborhood watch platform with Swift iOS and Java Android apps, MongoDB backend, and real-time reporting features for community safety and digital surveillance.
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Writing

Modern Data Stack 2025: Complete Guide for $10/Month | Data Engineering Solutions

Learn to build a complete modern data stack for only $10/month. Comprehensive guide with practical examples from professional data engineering services. Including Snowflake, dbt, and cloud-native tools.

Why Most Business Dashboards Fail (Enterprise, Small Business & Sports Teams) - Data Engineer Insights

Data engineer Emil Karlsson explains why 60% of dashboards fail and shares proven strategies for creating effective data visualizations that drive real business results from his experience in Nacka, Sweden.

Mastering Rapid Prototyping: 6 Expert Steps to Validate Ideas Efficiently | Data Engineering Guide

Complete guide to rapid prototyping methodology. Learn 6 proven steps for efficient idea validation, product development, and design iteration. Expert insights on prototyping tools and techniques.
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Let's Work Together!

Need help with data engineering, full-stack development, or hockey analytics? I help companies build modern technical solutions that create real value.

Contact Me Today