Speaking at AWS User Group Athens on June 4: Building conversational AI agents with Lambda Durable Functions and the Sinch Conversation API. Sequential code, human-in-the-loop callbacks, no Step Functions glue. RSVP: www.meetup.com/aws-user-gro...

I'm taking my kids to Seattle for vacation this summer (Jun 26-Jul 3)! Any of my Seattle friends have suggestions on what to do there with kids aged 9-12?

Hallo Wien! 🇦🇹 ​Excited to head to Vienna for the next AWS User Group meetup! ​I'm speaking on Building Conversational Agents in Code with AWS Lambda Durable Functions, orchestrating Amazon Bedrock agents using Sinch for inbound/outbound chat. ​RSVP: www.meetup.com/amazon-web-s...

Amazing day at AWS Community Day Türkiye in Istanbul! Lots of great sessions, questions, and conversations with the vibrant Istanbul community. My keynote about the engineering mindset in the age of AI seemed to resonate well with many in the audience! #aws #awscommunity

Such a fun event with the AWS Community in the Nordics coming together in Stockholm for the yearly pre-Summit meetup! I talked about the importance of community and shared about my personal journey. Keep showing up!

Awesome event with Gothenburg Serverless tonight! Thanks to everyone who showed up and engaged! Lots of great conversations! A big thank you to the amazing speakers and to Cloud Enablers for hosting! Next event is yet to be scheduled. If you want to host, just let us know.

Starting today as the first Developer Advocate at Sinch. 700B+ texts and emails yearly. 100B+ calls. 160M+ active phone numbers. APIs for SMS, voice, WhatsApp, email, RCS, verification. If you've built with Sinch, I want to hear from you. What tripped you up? What's missing? DMs open.

Great day at AWS Community Day Bay Area Security Edition on Friday! Always great catching up with the Bay Area community and to hang out with fellow Heroes! My session on the security risks with MCP was hopefully an eye opener for many. Looking forward to the next one!

Thanks to everyone who joined yesterday's Gothenburg Serverless meetup and to Knightec Group for hosting! Next meetup on May 5 hosted by our friends at Cloud Enablers! Sign up to the group for notifications: www.meetup.com/gothenburg-s... #serverless #gothenburg

New tool: durable-viz turns AWS Lambda durable function handlers into flowcharts using static analysis. No deployment, no credentials. TypeScript, Python, Java. CLI or VS Code extension. npx durable-viz handler.ts --open github.com/gunnargrosch...

context.invoke() unlocks a pattern: one Lambda coordinator dispatching specialist agents as separate functions. Every call checkpointed, coordinator suspended while specialists run. dev.to/gunnargrosch... builder.aws.com/content/3BRI...

Gothenburg Serverless is back! Join us at Knightec in Lindholmen on April 7: - Spec-Driven Development for Serverless (Isak Holmdahl, Knightec) - Long-Running Serverless Workflows as Sequential Code (me) Food and drinks from 17:30. Space is limited: www.meetup.com/gothenburg-s...

Lambda Durable Functions: sequential code, checkpointed state, up to a year of execution. Zero compute during waits. Wrote about checkpoint/replay and built an AI support triage workflow with human-in-the-loop callbacks. dev.to/gunnargrosch... builder.aws.com/content/3B5i...

This game is so addictive!

Does your circuit breaker trip when it should? Do your retries back off or hammer a dead endpoint? failure-lambda 1.0: inject real failure conditions into any Lambda function to find out. dev.to/gunnargrosch... builder.aws.com/content/3Aqx... #aws #serverless #chaosengineering

DOOM runs on everything. Now AI coding assistants join the list. doom-mcp: an MCP server that lets Claude Code, Kiro, or Cursor play the actual DOOM engine. dev.to/gunnargrosch... builder.aws.com/content/3AmP...

I'll be in Amsterdam during KubeCon Europe week (March 23-26). Exploring what's next after 5+ years in DevRel at AWS. No ticket yet (hint hint), but around all week. Want to grab coffee and talk cloud native, AI, or dev experience? DM me! #KubeConEU #CloudNative

In-memory circuit breakers are silently useless on Lambda. Each environment tracks failures independently. With 50 concurrent environments and threshold 5, you need 250 failures before any circuit opens. dev.to/gunnargrosch... builder.aws.com/content/3Aj5...

New post: Multi-agent systems with RISEN prompts. The routing logic lives in the coordinator Steps section, not in code. Agents as tools, hooks for observability, routing eval with stubs. dev.to/gunnargrosch... builder.aws.com/content/3AXe...

New post: Lightweight evals for AI agent output quality. Structural checks, LLM-as-judge, calibration loop. RISEN prompts double as your eval spec. Runnable demo with two domains. dev.to/gunnargrosch... builder.aws.com/content/3ARU...

New post: RISEN (Role, Instructions, Steps, Expectation, Narrowing) turns vague system prompts into behavioral contracts for AI agents. Three scenarios with a runnable demo, including one with MCP tools. builder.aws.com/content/2cwk... dev.to/gunnargrosch...

After over five years at AWS, I'm part of the February layoffs. I've spent that time close to practitioners and the community, and that's what I'm looking for in what's next. Developer advocacy, DevRel, or community building. Longer post here: www.linkedin.com/posts/gunnar...

New post: Streaming Bedrock Responses Through API Gateway and Lambda ~500ms to first token instead of 8-10s. A side-by-side demo with the code and config to make it work. dev.to/gunnargrosch... builder.aws.com/content/3A9e...

New post: Building AI Agents in TypeScript with the Strands Agents SDK TypeScript support is in preview. A quick look at getting started: five examples from minimal agent to multi-tool orchestration. dev.to/gunnargrosch... builder.aws.com/content/3A55...

New post: Building the AWS Serverless Power for Kiro Built a Kiro Power with 25 MCP tools and ten steering guides for AWS serverless. Same expertise, different packaging. dev.to/gunnargrosch... builder.aws.com/content/3A1s...

New post: Turning AWS Serverless Experience into a Claude Code Plugin Encoded serverless expertise into skill guides so Claude makes the judgment calls that come from experience, not just documentation. builder.aws.com/content/39yk... dev.to/gunnargrosch...

New post: Extending Claude Code with Plugins and Skills for AWS Development Teach Claude your deployment process and security checks once. Skills are markdown files that replace repeated explanations. Plugins package them for your team. builder.aws.com/content/39vd... dev.to/gunnargrosch...

New post: Improving Your AWS Development Workflow on Claude Code with MCP Servers Seven MCP servers for AWS development. Query CloudWatch, design DynamoDB schemas, automate browser testing, and more. builder.aws.com/content/39tZ... dev.to/gunnargrosch...

New post: Automating Your Workflow with Claude Code Hooks CLAUDE.md is the style guide. Hooks are the linter. 10 practical examples you can use right away. builder.aws.com/content/39qV... dev.to/aws/automati...

CLAUDE.md teaches Claude Code your conventions. Write them once, remembered every session. New post: templates, modular rules, and the pitfalls that waste your context window. dev.to/aws/teaching... builder.aws.com/content/39nt...

New guide: Claude Code with Bedrock in VS Code and JetBrains Get inline diffs and visual code review in your IDE while keeping code in AWS. Covers VS Code authentication (the tricky part) and JetBrains setup. builder.aws.com/content/39i6... dev.to/aws/from-ter...

Claude Code is all the rage! Did you know you can run it with Amazon Bedrock for enterprise security and governance? Quick guide covering setup, auth, model config, and cost optimization 👇 builder.aws.com/content/39gP... #AWS #AmazonBedrock #ClaudeCode

My friend Adrian Hornsby's book "Why we still suck at resilience" is published! Do your organization a favor and get this book! It tackles the frustrating reality of why resilience practices fail and gives you tools to fix it. Congratulations on the launch, Adrian! ❤️ leanpub.com/whywestillsu...

Awesome event with Gothenburg Serverless hosted by our friends at Elva! Julian and I spent three hours walking through and showing demos of everything new with serverless and agentic AI! Thanks to everyone who joined! I love the serverless community! ❤️

Great to be back at Stockholm Serverless meetup! Julian and I had a lot of fun talking about everything new with serverless and agentic AI! And there was definitely a lot to cover! We could without a doubt have gone on for a few more hours. Thanks to everyone who joined! I love this community! ❤️

Such a fun event in Helsinki with AWS User Group Finland! One of the attendees described what I did as "lively" and I guess that sums it up quite well! As always, these events are all about the community and the people. I'm leaving Helsinki with a full heart. I love you all! ❤️

Happy Friday, everyone! We're celebrating with proper Italian kebab pizza and proper Italian pineapple pizza! 🍕

🎯 DEV Track Spotlight: Breakout Sessions & Code Talks from AWS re:Invent 2025 I've covered 27 incredible sessions featuring AWS Heroes and speakers from AWS. From multi-agent AI systems to serverless, Rust performance to legacy modernization. #AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes

Part 27 of DEV Track Spotlight 🤖 Together with @readysetcloud.io, I demonstrated how to build production-ready multi-agent AI systems at AWS re:Invent (DEV415). The key? Treat agents like distributed systems with A2A protocol, MCP for typed interfaces, and RISEN prompts for deterministic behavior.

Part 26 of DEV Track Spotlight 🚀 Shridhar Pandey (AWS) and I built a complete serverless image generation app - backend, frontend, observability - using Kiro CLI. Session: Serverless Full-Stack in Action: AI-Driven Developer Experience #AWSreInvent #DEVTrack #AWSCommunity

Part 25 of DEV Track Spotlight 🤖 DEV332 with Joy Chakraborty (AWS) & Elizabeth Fuentes Leone (AWS) "Simple things should be simple to build and deploy" - building multimodal AI agents with Strands Agents SDK & Amazon S3 Vectors #AWSreInvent #DEVTrack #AWSCommunity

Part 24 of DEV Track Spotlight 🦀 DEV405 with @darko.rup12.net (AWS Principal Developer Advocate) "With the world of LLMs, with coding assistants, with everything at your fingertips, you don't need to write Python anymore. You can write Rust." #AWSreInvent #DEVTrack #Rust

Part 23 of DEV Track Spotlight 🤖 DEV331 with Erik Hanchett & Du'An Lightfoot (AWS Developer Advocates) "Agents still need compute, storage, databases. All the knowledge you have is still valuable up until this point and beyond." #AWSreInvent #DEVTrack #AWSCommunity

Part 22 of DEV Track Spotlight 🤖 DEV403 with @jameshood.dev (AWS) & @maishsk.com (AWS) "I am also a former AI skeptic. My previous experience with AI was trying flashy demos on real world code and watching it crash and burn." Then he discovered Agent SOPs. #AWSreInvent #DEVTrack #AWSCommunity

Part 21 of DEV Track Spotlight 🚀 DEV304 with Elizabeth Fuentes Leone (AWS) & Rossana Suarez (AWS Container Hero, Naranjax) Werner Vogels' most famous quote: "Everything fails all the time." Do you find out from dashboards or angry customers? #AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes

Part 20 of DEV Track Spotlight 🗄️ DEV315 with Namrata H Shah (AWS Community Hero) & Rob Koch (AWS Data Hero) "When databases can discover, recommend, and optimize on their own, they stop being reactive systems and become intelligent partners." #AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes

Part 19 of DEV Track Spotlight 💰 DEV318 with Steph Gooch (AWS) & Kenneth Attard (AWS Community Hero, Betsson Group) "It's Friday morning, you've had an easy week... And then you get this email, your AWS budget has gone off" #AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes

Part 18 of DEV Track Spotlight 🤖 DEV313 with Haowen Huang (AWS) & Cyrus Wong (AWS AI Hero) "By the 2030s, we will see an agent economy operating like a global neural network of interconnected agents." Voice-controlled humanoid robots, robot dogs & drones! #AWSreInvent #DEVTrack #AWSCommunity

Part 17 of DEV Track Spotlight 🎲 DEV330 with Olivier Leplus & Tiffany Souterre (AWS) Building a multi-agent AI Game Master with Strands Agents SDK - live coding that made complex agent orchestration look simple! #AWSreInvent #DEVTrack #AWSCommunity