Skip to main content
Software Engineering Intern @ HubSpot

Patrick
Anyanwu.

Software Engineer·Content Creator

My journey

How it all started

How I landed my first software engineering internship in freshman year, the whole story in 9 minutes.

2x SWE Intern @ HubSpot · YC Startup School '26 · CS @ Dublin City University. I build production software on HubSpot's FinTech billing team, ship full-stack and iOS products of my own, and run PKodes, where I talk about my journey and host mock interviews with engineers from Apple, Meta, Google, and Netflix.

  • 2x SWE Intern @ HubSpot
  • Google Algorithms Workshop · Top 20
  • YC Startup School '26 · Paris
  • Co-founder @ KP Designs
  • 135k+ YouTube views
  • 400+ DSA problems solved
  • First Class Honours @ DCU

Experience

Experience highlights

Production engineering on HubSpot's FinTech billing systems, from distributed backends to the frontends that make them usable.

HubSpot

Software Engineer Intern · FinTech Billing Assistance Experience

Jul 2026 to Present

Built the full frontend for an automated payment matching system, surfacing invoice-to-transaction match confidence tiers to guide cash application workflows.

  • React
  • TypeScript
  • Java

HubSpot

Software Engineer Intern · FinTech Billing Communications

Apr 2026 to Jul 2026

Took on on-call responsibilities alongside senior engineers, monitoring production systems and responding to live incidents.

  • Java
  • Kafka
  • HBase
  • Vitess

HubSpot

Software Engineer Intern · FinTech Billing Communications

Jun 2025 to Aug 2025

Developed and deployed a production-ready internal tool to streamline billing-related communications between HubSpot employees and customers, projected to improve operational efficiency by ~25%.

  • Java
  • React
  • CI/CD

Freelance

I also build for clients through KP Designs

KP Designs is my freelance web development studio for startups, small businesses, and personal brands that need reliable, beautiful web solutions.

Visit KP Designs

Websites & landing pages

Responsive marketing sites and portfolios shaped around clear positioning, conversion, and fast launch cycles.

Full-stack apps

Modern product builds with polished interfaces, reliable backends, and the workflows needed to run them.

PKodes

Mock interviews, career stories, and my journey

I run PKodes for coding and system design interviews with engineers from Apple · Meta · Google · Netflix · Amazon · HubSpot, plus journey videos about internships, rejections, hackathons, and breaking into big tech. 35+ videos, 135k+ views.

My journey

Offers, rejections, hackathons, and life as a CS student breaking into big tech.

Mock Interviews

Coding and system design interviews with engineers from Apple, Meta, Google, Netflix, and HubSpot.

PKodes Hot Seat

Unfiltered career conversations with engineers about life inside the industry.

Mock Apple Coding Interview with an Apple Software Engineer

58k views · 48:03

Mock Google Coding Interview ft. Conner Ardman

13k views · 40:08

How I Got a Software Engineering Job at Amazon (and Why I Rejected It)

11k views · 7:55

How I Got a Software Engineering Internship in Freshman Year

8.5k views · 9:04

Beyond the code

More than a résumé

The things that keep me sharp, creative, and human.

Dance

Movement is the other creative outlet: performing and dancing whenever the chance shows up.

Basketball

Playing with the DCU Basketball society, where competitive instincts don't switch off at the keyboard.

Societies

Active in Redbrick Networking Society and Afrosoc at DCU for community, culture, and connections.

Robotics mentoring

Taught kids to build and code LEGO robots at STEAM Academy, sparking the same curiosity that got me here.

Team leadership

Led matchday teams at the Aviva Stadium for 2+ years across operations, training, and staying calm under pressure.

Contact

Let's build something.

Open to collaborations, speaking, and interesting problems. Based in Dublin, Ireland, happy to talk wherever you are.