Rainer Hahnekamp

Rainer Hahnekamp

Co-Founder, AI Engineer & Google Developer Expert for Angular

About

Rainer Hahnekamp is co-founder and AI engineer at Soverius AI, a Google Developer Expert (GDE) for Angular, and a seasoned software architect with over 15 years of experience building production-critical enterprise applications — including a long tenure as team lead at Mars, Inc., using Angular and Spring.

As a member of the NgRx Core Team, Rainer brings deep expertise in state management, reactive patterns, and modern TypeScript. He speaks regularly at conferences such as Devoxx BE, ngRome, ngPoland, Basta, JAX, and WeAreDevelopers, and publishes articles in heise developer, the Java Magazin, and dot.net developer.

Rainer runs a popular YouTube channel with Angular-specific content, publishes ng-news, and contributes to CopilotKit for Angular. His work connects deep application architecture with agentic UI, coding agents, and production AI engineering.

Conference Talks

Demystifying the AI Jungle: Connecting the Dots

Demystifying the AI Jungle: Connecting the Dots

April 12, 2026Gurgaon, IndiaSlides

Developing with Local LLMs: Reality or Illusion?

Developing with Local LLMs: Reality or Illusion?

September 11, 2026Graz, Austria

Lokale LLMs: Sind sie den Aufwand wert?

Lokale LLMs: Sind sie den Aufwand wert?

September 17, 2026BerlinSlides

Local Models for AI-Assisted Coding

Local Models for AI-Assisted Coding

September 8, 2026Online

Agents All the Way Down: The Agentic Stack

Agents All the Way Down: The Agentic Stack

September 30, 2026AI DevCraft · OnlineSlides

From Hours to Minute: An AI Case Study with Sheriff

From Hours to Minute: An AI Case Study with Sheriff

November 20, 2025AI PolandSlides

Blog Posts

Quantized AI 26/09: Always-On Agents, Gemini 4 and Pi 1

Oct 14, 2026Always-on agents are becoming a new technology layer. We look at OpenAI Dots, Gemini 4 Argon and Pi 1, with our analysis of adoption and trust.

Quantized AI 26/08: The Hype About Jev

Oct 2, 2026Jev brings fast decisions to software. We explore System One AI, Opus 5.5, Sol 6.1 and the safety concerns behind Astra 6.1’s cancelled release.

Quantized AI 26/07: Summer Edition

Sep 23, 2026The summer of 2026 was quite eventful for AI. As usual, we got new, powerful models. New terms such as Graph Engineering arrived on the scene, and the ongoing discussion about human code review, yes or no, reached another high point. The main event, though, was something else. The Hugging Face incident triggered a new level of AI doomsday discussion and made it clear that this is not just a marketing gag.

Getting started with Local LLMs for Software Development

Aug 17, 2026Learn how to use local LLMs for software development with predictable costs, privacy and independence, and the quality required for real-world projects.

Soverius AI is now maintaining CopilotKit for Angular

Jul 10, 2026Agentic, generative UI for Angular — a maintained, MIT-licensed package, shown with a small Angular + NgRx demo.

Quantized AI 26/02: Glimpse of Fable, Loop Engineering, Apple Intelligence 3rd Gen

Jun 17, 2026Fable was Anthropic's public Mythos-class model for a few days - then a US export-control order took it offline for everyone. We also look at Loop Engineering (an emerging term) and Apple Intelligence third-generation on-device models at WWDC.

What is an Agent Harness?

May 28, 2026Learn what an Agent Harness is, why it matters, and how it improves LLMs through tools, context management, agent runtimes, guardrails, and intent alignment.

AI Fundamentals: How LLMs Work and Their Limitations

Apr 23, 2026A deep dive into how AI models really work, from pre-training and inference to Chain of Thought, agents, and the emerging field of Harness Engineering.

Reviewed Posts

Building a local-first AI standup bot for Slack

Aug 17, 2026An async standup bot for Slack built with CopilotKit Channels, Mastra, and a local Gemma model — local-first, typed tools, SQLite as the source of truth.

Inside MacroQuest: agent-generated UI in Angular, on a local 12B model

Knowledge in a Browser Tab: Fully Local RAG with Gemma 4

Jun 26, 2026Retrieval-Augmented Generation entirely client-side: with Angular, Transformers.js, WebGPU, and Google's new on-device model Gemma 4 E2B

Build a local AI coding agent from scratch

Jun 11, 2026Build a local AI coding agent from scratch — Gemma 4 on llama.cpp, three tools, one loop — then learn why running it unsandboxed is dangerous and how NVIDIA OpenShell contains it.

Behind the curtain of A2UI: how and why it could work

May 12, 2026Benchmarking 14 local LLM configurations on Google's A2UI generative-UI protocol on a DGX Spark. The cliff between what works and what fails is sharper than expected.

Highlights

Google Developer Expert (GDE) for Angular & member of the NgRx Core Team
Conference speaker: Devoxx BE, ngRome, ngPoland, Basta, JAX, WeAreDevelopers
YouTube channel & Ng-News — weekly Angular video newsletter
15+ years at Mars, Inc. — team lead for production Angular & Spring systems

Quick Info

Co-Founder, AI Engineer & Google Developer Expert for Angular

6 talks

8 posts

5 reviewed