Available for opportunities · Marlton, NJ

Software EngineerMateo Calderon

I design and build performant, scalable systems — from runtime-configurable platforms to on-device ML.

View my workGet in touch
01 · About

Engineer of systems that scale

I build performant, maintainable software — from runtime-configurable platforms and high-throughput APIs to on-device machine learning. I care about clean architecture, measurable impact, and shipping things people actually use.

I'm a software engineer based in New Jersey, currently working on proprietary, high-performance platforms that replace legacy vendor systems at enterprise scale. My work spans the whole stack — designing database schemas and asynchronous, queue-based backends, building responsive front-ends, and hardening delivery pipelines.

Outside of the day job, I like taking ideas end-to-end. My latest project, Kinetic, extracts 3D body pose from video entirely on-device and turns it into real-time coaching — a fun excuse to go deep on signal processing, concurrency, and shipping a real product to the App Store.

20k+
Daily API transactions handled
.NET / React
Primary full-stack toolkit
iOS + ML
On-device pose & coaching
Cum Laude
B.S. Computer Science

Education

The College of New Jersey

B.S. Computer Science

Ewing, NJ · Aug 2021 — May 2025

Cum LaudeHonors ProgramUpsilon Pi Epsilon (UPE) HonorsGPA: 3.6 / 4.0
02 · Experience

Where I've worked

A high-level look at the teams I've built with. Project specifics are kept intentionally general.

Associate Software Engineer

Jun 2025 — Present
W. R. Berkley · Moorestown, NJ

A Fortune 500 commercial lines insurance holding company. I work on high-throughput, proprietary platforms that replace legacy vendor systems.

  • Design and own runtime-configurable, metadata-driven platform systems (.NET, Blazor).
  • Build high-throughput, load-balanced APIs with asynchronous, queue-based architectures.
  • Modernize CI/CD with standardized pipeline templates and fast, reliable E2E test suites.
  • Mentor interns and integrate them into agile, production-ready workflows.
03 · Projects

Things I've built

Personal projects where I get to own the whole thing, end to end. More coming soon.

Kinetic — AI Coach

iOS app that turns weightlifting video into real-time technique coaching.

2026 · Shipped

A native iOS app that extracts 3D body pose and rep data from weightlifting video on-device, then sends it to a large multimodal model for personalized technique coaching. Shipped end-to-end and deployed to the App Store.

  • Bounded-window gap-filling algorithm recovers joints lost to self-occlusion, searching ±5 frames for the nearest high-confidence detection and interpolating in 3D.
  • Single-pass O(1) EMA filter damps pose jitter without adding lookahead latency.
  • Parallelized on-device pose inference with the network-bound coaching call via Swift structured concurrency (async let), overlapping compute- and I/O-bound work.
  • Full production stack: Firebase Auth, a Firestore-backed quota system, and StoreKit 2 subscriptions.
SwiftApple VisionCore MLFirebaseStoreKit 2Gemini

Your Next Project

A short, one-line pitch for what this project does.

Coming soon

This is a placeholder card. Describe the problem you solved, the approach you took, and the impact. Copy this object in src/content/projects.ts to add more.

TypeScriptReactNode.jsPostgreSQL
04 · Skills

Tools of the trade

The languages, frameworks, and platforms I reach for most.

Languages

C#TypeScriptJavaScriptSwiftSQLHTML/CSS

Frameworks & Libraries

.NETReactBlazorAngularEntity Framework

Data & Infrastructure

SQLNoSQLRedisDockerREST APIs

ML & Mobile

Core MLApple VisionFirebase

DevOps & Testing

Azure DevOpsGitHub ActionsPlaywrightNUnit / xUnit
05 · Beyond Code

Off the clock

A little of what keeps me busy when I'm not shipping software.

🏉
🏉

Rugby

I've played rugby competitively for years — it's where I learned that resilience, communication, and trusting your teammates matter as much as raw talent. The same instincts carry straight into how I work on an engineering team. (Placeholder details — to be updated.)

Flanker
Position
6+
Seasons
Team-first
Mindset
06 · Contact

Let's build something.

I'm always up for interesting problems and good conversations. Whether it's a role, a project, or just to say hi — my inbox is open.

mateoecalderon@gmail.com
LinkedInGitHubEmail