A Jack of all trades is a master of none, but often times better than a master of one.

Jack Mahoney smiling in a tuxedo at a formal celebration

Maho's Corner™

Based in Chicago

Creator + Mental Health Advocate

Software Engineer + Enterprise Architect

Hi, I'm Jack Mahoney! But my friends call me Maho.

I'm a creator in many ways. I write code, architect technology, dabble in design, and a handful of other things. Most importantly, though, I'm dedicated to providing more accesible mental health resources and helping others.

I love solving hard problems, building thoughtful systems, and writing about tech, sports, cooking, and life.

Welcome friend!

Contact

@Experience

Work Things(3)

2025 — Present

Lost in Thought

Engineer, Designer, Marketing, Accounting, and Everything Else

Chicago, IL

  • Created Lost in Thought, an iOS and Android app dedicated to journaling and mental health.
  • Lost in Thought uses flutter for the frontend and a mixture of Google Cloud and Supabase for the backend.
  • On a mission to build a brand that makes mental health more accessible and help others through my app, physical products, merch, and more.

2022 — 2026

Northern Trust

Sr. Lead Enterprise Architect

Chicago, IL

  • Replaced legacy API auth with JWT-backed services, reverse proxies, and a centralized backend. Modernizing authentication without disrupting production.
  • Built and deployed an AI Agent with LangChain and OpenAI to assess projects for appropriate architecture, security, and compliance risks.
  • Presented ML and neural network research to 300+ engineers with live Python demos that turned research into patterns teams could ship.
  • Launched a Platform Guidance Program that rationalized the software footprint and gave teams a clearer path to build on fewer, stronger platforms.

2018 — 2022

Deloitte

Senior Consultant - Cybersecurity

Chicago, IL

  • Led NIST and ISO 27001 maturity programs for Fortune 500 clients. Converting audit gaps into prioritized remediation roadmaps leadership could act on.
  • Embedded secure SDLC across delivery teams: threat modeling in design reviews, hardened CI/CD pipelines, and executive ready risk reporting.
  • Rearchitected Oracle environments for enterprise clients, cutting licensing and infrastructure spend by 20% while maintaining uptime and compliance.

Capabilities

Skills(5)

01

Front-End

Interfaces that are fast, accessible, and built with modern React patterns.

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • HTML
  • CSS
  • Tailwind

02

Back-End

APIs and services designed for reliability, security, and clear boundaries.

  • Go
  • Node.js
  • C
  • REST
  • JWT
  • Docker
  • Edge Functions
  • Serverless
  • Microservices

03

Data

Structured data modeling, queries, and integration across application layers.

  • SQL
  • PostgreSQL
  • Supabase
  • NoSQL

04

Architecture

Enterprise strategy, API management, and systems that scale with the business.

  • AI Models & Agents
  • Enterprise Architecture
  • API Management
  • Machine Learning & LLMs
  • Network Security & Segmentation
  • Google Cloud
  • Azure Cloud
  • AWS
  • Disaster Recovery & Fault Tolerance

05

Design

Creating visual content for user interfaces and marketing materials.

  • Figma
  • Capcut
  • Canva
  • Adobe XD
  • Photoshop
  • Illustrator
  • After Effects
  • Premiere Pro

Featured Projects

Featured Work(4)

See Writing
LLM Safety for Mental Health

Research · LLM Safety · Mental Health

LLM Safety for Mental Health

Independent research on whether frontier models hold their ground when users push back on cognitive-distortion challenges, with a self-auditing evaluation pipeline.

Lost in Thought App

Mobile App · Mental Health · AI

Lost in Thought App

A free iOS and Android app dedicated to journaling and mental health.

Maho's Corner

Next.js · TypeScript · Tailwind

Maho's Corner

Personal blog and portfolio built with Next.js, TypeScript, Tailwind CSS, and markdown. Designed to make complex tech topics approachable.

ML & Neural Networks

Python · Machine Learning · Neural Networks

ML & Neural Networks

Research and live Python demonstrations on machine learning and neural networks, presented to 300+ engineers with fine-tuning walkthroughs.

Previous Posts

Writing(18)

2025 Year in Review

January 8, 2026

2025 Year in Review

I spent the last few weeks of the year reflecting on my 2025 and the lessons I learned from what I think was my best year yet.

Read More →
View all writing (18) →

Building cool things because I can and it stimulates my brain.

I create apps, websites, designs, write, read, and a whole lot of other things, because that is what life is all about. Are a lot of the photos on my website from my wedding day? Yes. And that is because that was the happiest I've ever been, I love my wife, and the photos are really good.

You seem cool, let's chat!
Jack Mahoney in a tuxedo with his partner in a modern creative space

What People Say

Testimonials(4)

Get in Touch

“Jack is one of the most talented and dedicated people I've ever worked with. Beyond his work capabilities, he is a deeply empathetic person with high emotional intelligence who actually gives a shit about other people.”

Northern Trust

Former Boss

Engineering Director, Northern Trust

“Not only does Jack have sick technical skills, he can also make some mean powerpoints. Oh and he can actually talk to people really well!”

Deloitte

Client Name

Former Partner, Deloitte

“I know life may seem hard for you sometimes, but I worry about you way less than some of my other patients. ”

Professional Therapist

My Therapist

Helping me maintain my sanity, Professional Therapist

“I would drink a beer with Jack any day of the week. He is one of the most genuine people I've ever met.”

Best Friend's Dad

Best Friend's Dad

Being Chill, Probably near some Patio

Questions

FAQ(6)