Colten Appleby

Software Engineer

About Me

I am a seasoned software engineer, and I specialize in developing user-centric products. My strength lies in understanding and analyzing user interactions with technology, ensuring that the end result meets their needs effectively. I am in search of a team that embraces collaboration and innovative thinking, where mutual challenges propel skill development, and a shared commitment to quality and exceptional products is the norm. I am seeking an in-person/hybrid position to contribute my skills to a dynamic and collaborative work environment. The things that I currently have the most experience working with are: ES6 Javascript, React, Python, Java Spring Boot, PostgreSQL, and git.


Proficient Languages: Python, React, JavaScript Java, Spring Boot, TypeScript, d3.js, Ruby, Ruby on Rails, Git (Github), SQL, PostgreSQL, Pandas, Numpy Software: Palantir Foundry, SAP ByDesign, QGIS, Revit, Navisworks Technology: Machine Learning, REST, MVC, LEAN, ETL, Microservice Architecture


Katalyst Digital Infrastructure

Data Engineer to Software Engineer

2021 - 2023

Spearheaded frontend (React) and backend (Java Spring Boot) development of responsive notification system for project permissions. Partnered with the Project Manager to enhance user experience and technical processes. Reduced user time by ~60%.

Engineered and tested 15 Java Spring Boot API (REST & GraphQL) endpoints for package schedule tracking module. Track products from bidding through logistics and installation on-site. Iterative development with the client-facing service team. Drove 30% growth in customer acquisition.

Designed and developed a private NPM package (React, Typescript) for visualizing and planning $500 million in construction schedules. Data visualizations included Gantt Chart and Bar Charts.

Led data onboarding for construction teams of Fortune 100 hyperscalers. Aggregating over 30 TBs of data producing insights that lead to $50mm in savings. (Python, PySpark, Palantir Foundry)

WR Liggett LLC

ERP Technology Integrator

January 2021 - November 2021

Orchestrated the migration of a legacy PostgreSQL database to a new ERP system. Data cleaning and conversion with Python.

Implemented a $50mm SAP Business ByDesign ERP, contributing to the overall efficiency and organization of the company’s operations.


ERP Systems Integration Project Manager

May 2017 - December 2020

Promoted from Intern to Analyst to Associate to Lead.

Implemented a $20mm SAP Business ByDesign ERP system for the supply chain, manufacturing, and financial systems. Co-launched a 70 person manufacturing and prefabrication subsidiary.

Developed and presented a model (python) of a $100 million supply chain to leadership, leading to successful implementation of staff leveling and a $5 million reduction in raw material spend.

Formed WeWork’s Construction Technology Studio to lower construction costs through data analytics, field technology, and Building Information Management (BIM). Built a team of 25 members.


Rensselaer Polytechnic Institute

BSc Industrial Engineering

2014 - 2018

Organizations: Varsity Cross-Country Team, Lambda Chi Alpha, Club Badminton

Georgia Institute of Technology

Online Masters of Science in Computer Science - OMSCS

Expected 2025

Relevant Classes: Machine Learning for Trading, Machine Learning (Spring 2024)

Flatiron Bootcamp

Full Stack Web Development Coding Bootcamp (15 Weeks)


Five group projects in JavaScript, Ruby on Rails, React, Ruby, HTML, CSS, & SQL

A Little More About Me

Alongside my interests in software and data engineering some of my other interests and hobbies are: Baseball, Sabermetrics, Skiing, Craft Beer, Running, Hiking, Photography, Travelling, Pitch.