Work Value Trend Radar 3D
ShippedInteractive 3D trend radar for mapping weak signals of AI & robotics and their impact on the value of work across industries.
TypeScriptReactThree.jsFirebaseZustand
indie hacker · freelancer · student
Hi, I'm Joris
A guy who builds stuff online.
Been here for 22 years
I love turning ideas into real things on the internet — products, tools, and experiences that people actually use.
Joris Strakeljahn#4A2F1B
Over 3 years of
building real things
Since Jan 2026
Independent Software Developer
Self-employed
Mostly building my own products and ideas — turning concepts into real, shipped software. On the side, freelance development and consulting for small to mid-sized projects.
Next.jsTypeScriptReactJavaRustPostgreSQLAI/RAG
Dec 2024 – Feb 2026
Student → Research Assistant
Blockchain Working Group · Hochschule Bielefeld
Started as a student assistant, promoted to research assistant. Built blockchain application concepts, smart contracts, and an NFT collectible game on the Q-Blockchain. Integrated a Gas Station Network for gasless transactions.
SoliditySmart ContractsWeb3TypeScriptQ-Blockchain
Aug 2022 – Dec 2025
Dual Student → Full-Stack Developer
Hörmann KG Verkaufsgesellschaft
3+ years from dual studies to full-stack role. Enhanced the company's e-commerce platform, introduced QA and test automation, built a product knowledge graph, and developed a multi-agent RAG chatbot for product consulting.
PythonJavaReactRAGLangChainAI AgentsPostHogTesting
Jul 2021 – Jun 2022
Voluntary Military Service
German Armed Forces (Bundeswehr)
Always learning,
always shipping
Since Oct 2025
M.A. Business Innovation & Technology
Hochschule Bielefeld
Aug 2022 – Sep 2025
B.Sc. Business Information (work-integrated)
Hochschule Bielefeld
Final grade: 1.7
2013 – Jun 2021
Abitur (General University Entrance Qualification)
Kreisgymnasium Halle (Westf.)
Want the full picture?
Download CV (PDF)Code should be honest
I write clean, maintainable, and testable code — the kind that your future self (and your AI tools) can actually understand.
Ship fast, iterate faster. Every product starts as a rough idea. The key is validating early and refining relentlessly.
Pick the right tool for the job, not the trendy one. Build things that work, test them properly, and ship with confidence.
My Projects
Things I've built, am building, or exploring.
Survey NFT
ShippedDecentralized survey platform with soulbound NFTs and gasless transactions via OpenGSN on Polygon. Tamper-proof, cost-free participation tracking.
Vue 3TypeScriptSolidityOpenGSNPolygon
Therefor Bitcoin
Coming soonMobile-first Bitcoin & sound-money knowledge base with premium editorial design, search-first UX, and primary sources.
Next.jsTypeScriptMDXPostHog
AgentSats
Coming soonNon-custodial governance layer for Bitcoin & Lightning payments by AI agents. Dashboard for monitoring and managing autonomous transactions.
TypeScriptRustBitcoinLightningNode.js
Portfolio
ShippedThis very site — built with Next.js App Router, CSS Modules, scroll animations, and zero UI dependencies.
Next.jsTypeScriptCSS Modules
3 More Projects
ConfidentialThree additional projects under NDA that I can't share publicly. Happy to discuss in person.