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AVAILABLE FOR SOFTWARE ENGINEERING OPPORTUNITIES

Engineering Digital Experiences.
Building Systems That Scale.

I'm Leo Hunter Simon, a Full-Stack Software Engineer specializing in scalable backend systems, modern web applications, and data-driven business platforms. I turn complex technical requirements into reliable, intuitive software experiences.

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  • Python
  • C#
  • C++
  • PHP
  • TypeScript
  • JavaScript
  • React.js
  • Next.js
  • Vue.js
  • Node.js
  • Express.js
  • ASP.NET Core
  • FastAPI
  • Laravel
  • PostgreSQL
  • MySQL
  • Redis
  • Microsoft Azure
  • AWS
  • Docker
  • PyTorch
  • TensorFlow
  • Stripe
  • Git
Experience

Where I've Built & Grown.

Six years across product teams and client engagements, from backend foundations to full-stack delivery.

  1. —

    Full-Stack Software Engineer

    Pell Software

    Worked on full-stack business applications, SaaS platforms, enterprise integrations, inventory management systems, e-commerce platforms, and analytics solutions.

    ReactNext.jsTypeScriptPythonNode.jsC#ASP.NET CorePostgreSQLSQL ServerAzureAWSDocker
    • Developed modern web applications using React, Next.js, and TypeScript.
    • Built backend services using Python, Node.js, C#, and ASP.NET Core.
    • Designed REST APIs and database-driven applications.
    • Integrated payment systems, ERP platforms, and third-party APIs.
    • Worked with PostgreSQL, SQL Server, and Azure SQL.
    • Supported cloud deployments using AWS, Azure, and Docker.
  2. —

    Backend Software Developer

    Scopic Software

    Developed backend application functionality, APIs, database operations, and business software using PHP, Laravel, Python, and SQL.

    PHPLaravelPythonSQLMySQLRedisREST APIs
Projects

Selected Work.

Real-world software. Practical engineering. Meaningful solutions. Seven projects, each with screenshots of the live site and an illustrative dashboard concept.

Homepage of undergroundsolutions.com

01E-Commerce & Subscription Platform

Underground Solutions

A customized e-commerce platform designed to modernize professional training registrations, partner licensing purchases, and recurring subscription management.

  • React.js
  • Next.js
  • TypeScript
  • Node.js
  • Express.js
  • PostgreSQL
  • REST APIs
  • Stripe
Visit site
Homepage of fullgoodfulfillment.com

02Enterprise Software / Inventory ManagementFull Good FulfillmentJune 2024 – July 2025

Warehouse & Inventory Management System

A centralized warehouse management platform designed to streamline fulfillment operations, inventory tracking, order processing, and stock management.

  • React.js
  • TypeScript
  • C#
  • ASP.NET Core
  • Entity Framework Core
  • SQL Server
  • Azure
  • Docker
Visit site
Project overview page for the direct mail attribution platform

03Marketing Analytics / Data VisualizationInnovative DirectOctober 2024 – April 2025

Direct Mail & Digital Ad Attribution Platform

A marketing analytics platform connecting direct mail campaigns with digital advertising performance. The platform enables businesses to track campaign engagement, analyze conversions, and measure marketing results across channels.

  • Python
  • FastAPI
  • React.js
  • Next.js
  • TypeScript
  • PostgreSQL
  • Pandas
  • Chart.js
  • AWS
Visit site
Homepage of fieldflo.com

04Enterprise Integration / ERPFieldFlō

Foundation ERP Integration with FieldFlō

A multi-tenant ERP integration platform connecting Foundation ERP with FieldFlō construction management software.

  • C#
  • .NET
  • ASP.NET Core
  • .NET MVC
  • Razor
  • Bootstrap
  • Azure SQL
  • Azure Batch
  • Entity Framework Core
Visit site
Homepage of myorthoselect.com

05Desktop Software / Dental 3D Modeling

OrthoSelect

A specialized desktop application for dentistry and orthodontics that generates three-dimensional dental models and supports treatment planning, visualization, and braces positioning.

  • C++
  • OpenGL
  • VTK
  • Qt
  • CMake
  • Git
Visit site
Homepage of mlcommons.org

06AI / Machine Learning BenchmarkingMLCommons

MLPerf / MLCommons

Worked on machine learning benchmark utilities and performance evaluation workflows involving standardized AI workloads. Contributions were software development and benchmark-related work within the broader MLPerf effort.

  • Python
  • PyTorch
  • TensorFlow
  • NumPy
  • Pandas
  • Docker
  • Linux
  • Git
MLCommons
Homepage of codeaid.io

07Developer Assessment Platform

Codeaid

A technical assessment platform that helps companies evaluate developers through programming challenges, Git-based development workflows, automated code scoring, and software quality analysis.

  • PHP
  • Laravel
  • JavaScript
  • Vue.js
  • MySQL
  • Redis
  • Git
  • REST APIs
  • Docker
Visit site

Images are screenshots of each public website (desktop, a second page, and mobile). Dashboard concepts are illustrative mockups with sample data, built for this portfolio.

Skills

My Technical Toolbox.

The languages, frameworks, and platforms I work with across the stack, grouped by where they fit.

  • Programming Languages

    • C#
    • C++
    • Python
    • PHP
    • JavaScript
    • TypeScript
    • SQL

  • Frontend Development

    • React.js
    • Next.js
    • Vue.js
    • Razor
    • Bootstrap
    • HTML5
    • CSS3
    • Qt

  • Backend Engineering

    • Node.js
    • Express.js
    • ASP.NET Core
    • .NET MVC
    • Laravel
    • FastAPI
    • REST APIs
    • Entity Framework Core

  • Databases

    • PostgreSQL
    • MySQL
    • SQL Server
    • Azure SQL
    • Redis

  • Cloud & DevOps

    • Microsoft Azure
    • Azure Batch
    • AWS
    • Docker
    • Git
    • Linux
    • CMake

  • AI & Data Engineering

    • PyTorch
    • TensorFlow
    • NumPy
    • Pandas
    • Machine Learning
    • AI Benchmarking
    • Data Analytics

  • Graphics & Desktop Development

    • C++
    • OpenGL
    • VTK
    • Qt
    • 3D Modeling
    • Graphics Rendering

  • Business Systems

    • ERP Integration
    • Warehouse Management
    • Inventory Management
    • E-Commerce
    • Subscription Billing
    • Marketing Attribution
    • Multi-Tenant SaaS Applications

  • Engineering Practices

    • Object-Oriented Programming
    • REST API Design
    • Database Optimization
    • Background Processing
    • System Integration
    • Debugging
    • Performance Optimization
    • Agile Development
What I do

From Idea to Production.

Four areas I work across on every project, from the interface people use to the systems that keep it running.

  1. 01

    Frontend Engineering

    Building responsive, intuitive, and accessible web interfaces with modern frontend technologies.

  2. 02

    Backend Architecture

    Developing scalable APIs, reliable business logic, database-driven systems, and backend services.

  3. 03

    Cloud & Integrations

    Connecting enterprise systems, implementing cloud deployments, and building reliable integrations.

  4. 04

    Data & Intelligent Systems

    Working with analytics, machine learning workflows, data processing, and AI benchmarking.

Contact

Have Something Interesting to Build?

I'm always interested in connecting with people who are building meaningful products and solving interesting engineering challenges. Let's discuss your next project or opportunity.

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