About Me

Hey, I’m an Elixir developer and software architect with more than 20 years experience and now over 7+ years of production experience building on Elixir and Phoenix. I’ve been the technical founder and CTO of a Smart City / IoT platform (built on Elixir) since 2018 until recently and shipping Elixir/Phoenix/LiveView code every day. Passionate about distributed systems, OTP patterns.

Currently open to: Remote contract/freelance work or full-time positions (EU timezone preferred)

Elixir

• 7+ years production Elixir
• Phoenix Framework & Phoenix LiveView, OTP apps
• OTP patterns: GenServers, Supervisors, process isolation
• Oban for reliable background job processing

Data & Persistence

• PostgreSQL with Ecto
• Row Level Security (RLS) for multi-tenant isolation
• Time-series data with table partitioning

Messaging & IoT

• MQTT broker integration
• LoRaWAN (TTN, Actility/ThingPark), HTTP webhooks, polling, Modbus
• RabbitMQ

Notable Projects

city-monitor.com — CTO / Product Lead (2018–2026)
Real-time Smart City platform serving municipalities with live dashboards, sensor ingestion, alerting, and white-label PWAs.

rockstead.ai — Founder / Developer (Side Project, 2026–present)

Elixir/Phoenix/LiveView application for comparing LLM quality and cost.

Compare 15+ AI models (Claude, Llama, Mistral, etc.) side-by-side via Amazon Bedrock

• Real-time cost breakdowns and document uploads
• Currently in alpha: https://www.rockstead.ai

Infrastructure & DevOps

• AWS: ECS, EC2, RDS, S3, CloudFront, Lambda, Route53, CloudWatch, IAM, VPC
• Docker, GitLab CI/CD, staging/production environments

Background

- 20+ years total software development experience

• Previously: Ruby on Rails, cloud architecture, multiple CTO/tech lead roles
• Built AWS-based PaaS platforms, high-traffic e-commerce systems, blockchain/tokenization platforms

Languages & Experience

Elixir / Phoenix / LiveView: 7+
Ruby / Rails: 10+
JavaScript: 15+
PostgreSQL:10+
AWS: 12+

Interested in: Elixir ecosystem, AI/LLM integration, distributed systems, SaaS platforms

Open Source Contributions

• crate_ruby — Ruby driver for Crate.io database
• activerecord-crate-adapter — ActiveRecord adapter for Crate.io
• skynet_ruby — Gem to interact with SIA Skynet

Links

LinkedIn: Christoph Klocker - Dornbirn, Vorarlberg, Austria | Professional Profile | LinkedIn

• GitHub: corck (Christoph Klocker) · GitHub
• Email: christoph@vedanova.com

Location & Availability

• Location: Dornbirn, Austria (UTC+1/2)
• Work Style: Remote preferred (open to occasional travel within EU)
• Availability: Open to contract/freelance or full-time opportunities

Looking forward to connecting with the Elixir community! Feel free to reach out if you have interesting projects or opportunities.