Hacker News: jow13_12

New comment by jow13_12 in "Ask HN: Who wants to be hired? (June 2026)"

jow13_12 — Mon, 01 Jun 2026 16:20:45 +0000

Location: Toronto, Canada

Remote: Yes (or hybrid)

Willing to relocate: Yes

What I do: I build agentic systems and full-stack infrastructure — things that ship, observe themselves, and run autonomously.

Recent work:

- Founding contributor at NimbleBrain: designed the agentic loop and workflow engine that guides AI agents through building and publishing MCP server integrations end-to-end

- Co-created Vispyr: self-hosted observability platform on AWS with automated infra provisioning, OTel instrumentation, and a full Grafana telemetry stack

- Mozilla Firefox contributor: accessibility and DevTools CSS refactors

Stack I reach for: Python, TypeScript, AWS, Docker, PostgreSQL, Grafana stack, OpenTelemetry, MCP

AI-native: I build with Claude Code daily. Comfortable across the agentic toolchain — RAG, vector DBs, MCP, context engineering.

Resume: https://drive.google.com/file/d/179YWmLYuUz9Cfd-aOLGcgKpWbuz...

Email: jow13_122@yahoo.com

Profile: I'm a Canadian citizen Full-Stack SWE co-creator of Vispyr, an end-to-end, self-hosted, observability tool with automated infrastructure deployment, contributor to Mozilla Firefox, and a founding contributor to NimbleBrain.

New comment by jow13_12 in "Ask HN: Who wants to be hired? (May 2026)"

jow13_12 — Fri, 01 May 2026 22:16:46 +0000

Location: Toronto, Canada

Remote: Yes (or hybrid)

Willing to relocate: Yes

https://joecardoso.dev

What I do: I build agentic systems and full-stack infrastructure — things that ship, observe themselves, and run autonomously.

Recent work:

- Founding contributor at NimbleBrain: designed the agentic loop and workflow engine that guides AI agents through building and publishing MCP server integrations end-to-end

- Co-created Vispyr: self-hosted observability platform on AWS with automated infra provisioning, OTel instrumentation, and a full Grafana telemetry stack

- Mozilla Firefox contributor: accessibility and DevTools CSS refactors

Stack I reach for: Python, TypeScript, AWS, Docker, PostgreSQL, Grafana stack, OpenTelemetry, MCP

AI-native: I build with Claude Code daily. Comfortable across the agentic toolchain — RAG, vector DBs, MCP, context engineering.

Resume: https://drive.google.com/file/d/179YWmLYuUz9Cfd-aOLGcgKpWbuz...

Email: jow13_122@yahoo.com

Show HN: AI tutors for Python, Ruby, and JavaScript powered by my personal notes

jow13_12 — Wed, 29 Apr 2026 14:01:40 +0000

Live demos (also linked at the top of the repo):

- https://joecardoso.dev/brush-up-py

- https://joecardoso.dev/brush-up-rb

- https://joecardoso.dev/brush-up-js

The retrieval engine, although simple, sparks some interesting ideas, e.g.: what if instead of Zettelkasten notes you had summaries of codebase sections, and instead of [[wikilinks]] you had signposts to architectural dependencies? Graph traversal over a codebase map could be a way to help agents navigate large repos while keeping context window usage deliberate and bounded.

Comments URL: https://news.ycombinator.com/item?id=47948611

Points: 1

# Comments: 0

New comment by jow13_12 in "Ask HN: Who wants to be hired? (April 2026)"

jow13_12 — Wed, 01 Apr 2026 15:22:51 +0000

Location: Bay Area, CA Remote: Yes (or hybrid)

https://joecardoso.dev

Willing to relocate: Yes

What I do: I build agentic systems and full-stack infrastructure — things that ship, observe themselves, and run autonomously.

Recent work:

- Founding contributor at NimbleBrain: designed the agentic loop and workflow engine that guides AI agents through building and publishing MCP server integrations end-to-end

- Co-created Vispyr: self-hosted observability platform on AWS with automated infra provisioning, OTel instrumentation, and a full Grafana telemetry stack

- Mozilla Firefox contributor: accessibility and DevTools CSS refactors

Stack I reach for: Python, TypeScript, AWS, Docker, PostgreSQL, Grafana stack, OpenTelemetry, MCP

AI-native: I build with Claude Code daily. Comfortable across the agentic toolchain — RAG, vector DBs, MCP, context engineering.

Resume: https://drive.google.com/file/d/14DY0y1fR7_BYYZ4mu1RHHojNZIh...

Email: jow13_122@yahoo.com

New comment by jow13_12 in "Ask HN: Who wants to be hired? (March 2026)"

jow13_12 — Tue, 03 Mar 2026 17:27:17 +0000

Location: Toronto, Canada Remote: Yes (or hybrid)

https://joecardoso.dev

Willing to relocate: Yes

What I do: I build agentic systems and full-stack infrastructure — things that ship, observe themselves, and run autonomously.

Recent work:

- Founding contributor at NimbleBrain: designed the agentic loop and workflow engine that guides AI agents through building and publishing MCP server integrations end-to-end

- Co-created Vispyr: self-hosted observability platform on AWS with automated infra provisioning, OTel instrumentation, and a full Grafana telemetry stack

- Mozilla Firefox contributor: accessibility and DevTools CSS refactors

Stack I reach for: Python, TypeScript, AWS, Docker, PostgreSQL, Grafana stack, OpenTelemetry, MCP

AI-native: I build with Claude Code daily. Comfortable across the agentic toolchain — RAG, vector DBs, MCP, context engineering.

Resume: https://drive.google.com/file/d/1kXCv-RyYcL7W-Ic2bCBPYUAcQBW...

Email: jow13_122@yahoo.com

New comment by jow13_12 in "Ask HN: Who wants to be hired? (February 2026)"

jow13_12 — Mon, 02 Feb 2026 21:19:21 +0000

Location: Toronto, Canada Remote: Yes (or hybrid)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1RAO1NzfIRqbFRx_4-Qih6vzV8UJ...

Email: jow13_122@yahoo.com

Profile: I am a full-stack software engineer with several years of experience in Ruby and JavaScript, as well as additional proficiency in Python, TypeScript, and React. Most recently, I have been an open-source contributor to Mozilla Firefox, after participating in the creation of Vispyr, an open-source observability tool designed to make continuous profiling more accessible to developers.

New comment by jow13_12 in "Ask HN: Who wants to be hired? (January 2026)"

jow13_12 — Thu, 08 Jan 2026 16:56:22 +0000

Location: Toronto, Canada Remote: Yes (or hybrid)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1RAO1NzfIRqbFRx_4-Qih6vzV8UJ...

Email: jow13_122@yahoo.com

New comment by jow13_12 in "Ask HN: Who wants to be hired? (December 2025)"

jow13_12 — Thu, 04 Dec 2025 12:59:10 +0000

Location: Toronto, Canada Remote: Yes (or hybrid)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1WsNU0BPlehcD9WPaNoaEmlCCAT1...

Email: jow13_122@yahoo.com

Profile: I am a full-stack software engineer with several years of experience in Ruby and JavaScript, as well as additional proficiency in Python, TypeScript, and React. Most recently, I contributed to the creation of Vispyr, an open-source observability tool designed to make continuous profiling more accessible to developers.

New comment by jow13_12 in "Ask HN: Who wants to be hired? (November 2025)"

jow13_12 — Tue, 04 Nov 2025 00:45:12 +0000

Location: Toronto, Canada Remote: Yes (or hybrid)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1WsNU0BPlehcD9WPaNoaEmlCCAT1...

Email: jow13_122@yahoo.com

Profile: I am a full-stack software engineer with several years of experience in Ruby and JavaScript, as well as additional proficiency in Python, TypeScript, and React. Most recently, I contributed to the creation of Vispyr, an open-source observability tool designed to make continuous profiling more accessible to developers.

New comment by jow13_12 in "Ask HN: Who wants to be hired? (October 2025)"

jow13_12 — Thu, 02 Oct 2025 17:22:00 +0000

Location: Toronto, Canada Remote: Yes (hybrid is also possible)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1g5vEzlzZHHP95TSshXiWHX2h6xH...

Email: jow13_122@yahoo.com

Profile: I am a full-stack software engineer with several years of experience in Ruby and JavaScript, as well as additional proficiency in Python, TypeScript, and React. Most recently, I contributed to the creation of Vispyr, an open-source observability tool designed to make continuous profiling more accessible to developers.

New comment by jow13_12 in "Ask HN: Who wants to be hired? (September 2025)"

jow13_12 — Tue, 02 Sep 2025 23:18:56 +0000

Location: Toronto, Canada

Remote: Yes (hybrid is also possible)

Willing to relocate: Yes

Technologies:

> Languages, Frameworks, and Libraries: JavaScript, Express, Ruby, Sinatra, Python, Flask, SQL, jQuery, TypeScript, React

> Cloud: Digital Ocean Droplet, AWS (EC2, VPC, S3, CloudFormation, CDK), Heroku, Fly.io

> AI Engineering: LangChain, Claude, Hugging Face, Vector DBs, embedding, OpenAI API, RAG, chunking

> Other Technologies: Node.js, Git/Github, Docker, Linux/Bash, HTTP, Nginx, PostgreSQL, MongoDB

Resume: https://drive.google.com/file/d/1tETYvzVRaXAnuJeQoxlL7Mi8AFe...

Email: jow13_122@yahoo.com

Profile: I am a full-stack software engineer with several years of experience in Ruby and JavaScript, as well as additional proficiency in Python, TypeScript, and React. Most recently, I contributed to the creation of Vispyr, an open-source observability tool designed to make continuous profiling more accessible to developers.