Hi, I'm Yohan

Software Engineer with 5+ years' experience building scalable fullstack apps, data pipelines, and AI features that boost performance and cut costs.
YH

About

Innovative Software Engineer with 5+ years of experience in Fullstack Development, Data Engineering, and AI implementations. Expert in designing scalable infrastructure and optimizing application performance across multiple industries. Proven track record of reducing operational costs and development time while enhancing customer engagement.

Skills

HTML
CSS
JavaScript
TypeScript
React
React Native
NextJS
TanStack Query
TanStack Route
TanStack Table
Redux
TailwindCSS
SvelteKit
Java
Spring Boot
Reactive Spring
Go
Rust
Python
Docker
Kubernetes
AWS
GCP
Git
GitHub CI/CD
PostgreSQL
SQLite
Database Optimization
Kafka
NATS Jetstream
RabbitMQ
MQTT
Snowflake
Spark
RAG Systems
Generative AI
Embedded AI Applications

Work Experience

N

Nextwave | Prizm IO

Feb 2024 - Present
Head of Cloud Engineering

• Architected a complex drag-and-drop dashboard editing system for applications that compile to binaries for embedded devices, improving client customization capabilities by 60%

• Developed a custom IoT application framework with MQTT-based API and React frontend, reducing project creation time from 2 weeks to under 2 hours for manufacturing clients

• Engineered scalable infrastructure using Go and Kubernetes supporting 1 000 000+ concurrent devices while reducing operational costs by 85% compared to previous solutions

• Designed and implemented an AI agent using Retrieval-Augmented Generation (RAG) to index company documents and generate driver code from GitHub repositories, cutting required developers to 2

S

Stryda

Jun 2022 - Dec 2023
Software Engineer

• Implemented performance monitoring systems that improved overall application stability by 45%

• Identified and resolved critical payment processing bottlenecks by mapping inefficient microservice architecture, reducing payment delays from 72+ hours to under 15 minutes

• Led development of a desktop application for automated gameplay recording using proprietary AI to create shareable video montages, attracting global media coverage and significant investor interest

T

THS International Reception

Oct 2020 - Dec 2023
Software Engineer

• Optimized legacy frontend application by migrating from Redux to React Query, reducing backend queries by 50% and preventing system crashes during peak traffic events with 1,000+ concurrent users

• Collaborated with UX/UI design team to implement a mobile-first interface design, increasing user engagement by 70% and improving administrator satisfaction scores from 3.2/5 to 4.8/5

• Onboarded and supervised a team of 5 new engineers, implementing standardized processes that reduced onboarding time by 80%

Languages

English - Native
Swedish - Native
Korean - Native
German - Basic
Japanese - Basic

Code Recipes

Bits and pieces about coding I want to use daily or share with others.
Implementing OAuth2 in Spring Boot - Flexible Redirects
Java
Spring Boot

2025-08-10

Using JSON in PostgreSQL to handle complex aggregations
Go
PostgreSQL

2025-05-18

Implementing JWT authentication in Spring Boot
Java
Spring Boot

2025-05-18

My Projects

Check out my latest work

Even though I work, I always find time to work on side projects. I love building things that solve real problems and make people's lives easier. Here are some of my latest projects.

Resoom

Resoom

As a person who is not really into HR, Hiring a new employee has been a pain for me. So I decided to build a tool where it helps me generate interview questions based on the job description and their resume.

Next.js
Typescript
TailwindCSS
AI
Ato

Ato

During my time at Nextwave, I was tasked with building a high-performant IoT application toolkit. I found out that most of the existing were either too bloated, which made the WASM binaries too large. So I created Ato, a low-level async runtime for no-std Rust applications.

Rust
Async
No-std
WASM
Contact

Get in Touch

Want to chat? Just shoot me a dm with a direct question on LinkedIn and I'll respond whenever I can.