Shane Kelly Sizer

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Shane Kelly Sizer

Engineering Leader & Technology Innovator

Professional Summary

Results-driven Software Engineering Leader with X+ years of experience in building scalable systems, leading engineering teams, and delivering impactful software solutions. Returning to the workforce after a purposeful 5-year career break, bringing renewed energy, proven leadership, and a strong foundation in modern software development practices.

Work Experience

Founder

Nov 2025 - Present

Student, BS in Data Science with Computer Science Specialization – ASU

Sep 2023 - Dec 2025

Pursuing a personal interest in data science, mathematics, and computer science with a primary focus on machine learning, large-scale data analysis, and visualization. Program emphasizes ethical data use and interdisciplinary problem-solving across business, bioscience, social science, and geospatial applications. Skilled in statistical modeling, computational methods, and programming (Python, R, SQL), with hands-on experience applying data-driven insights to real-world challenges.

Pursuing a personal interest in datascience, mathematics and computer science. Primary focus on data analysis, machine learning, and data visualization.

Founder – institution/kioac

Jan 2023 - Present
  • Prototype/MVP development services

Teacher

Apr 2020 - Sep 2023

Provided comprehensive secular homeschooling for four children during the COVID-19 pandemic, designing and delivering full-time curriculum across core subjects. Managed individualized learning plans, adapted instruction to multiple age levels, and integrated travel-based learning while living and studying in various locations across the U.S. Developed strong skills in organization, communication, adaptability, and leadership.

Career Break

Feb 2020 - Apr 2023

Vice President of Engineering, Frameworks – Workiva

Oct 2017 - Feb 2020

Over a series of leadership roles of increasing responsibility and scope:

  • Established and led the implementation of our engineering platform: 'The Machine that Builds the Machine’
  • Managed 9 teams with over 100 people, creating and establishing engineering teams from scratch. Led the creation of 2 R&D departments, with the largest responsibility encompassing a department of over 100 members.
  • Contributed at all levels: individual contributor, team lead, manager, architect and executive in the creation and growth of a $300 million/year SAAS software platform

As a member of the Workiva Development team I develop best-in-class, next-generation collaborative applications for accounting and finance teams around the world, using Google AppEngine, Amazon EC2, Python, and Adobe Flex. I work on problems ranging from real time collaborative editing to distributed map-reduce algorithms to data warehousing on the latest cloud technologies.

Workiva, formerly WebFilings, is a leading provider of complex business reporting solutions and is used by more than 60 percent of the Fortune 500. The company’s Wdesk cloud-based product platform is a collaborative, real-time workspace where teams can streamline the entire reporting process with the accountability and confidence they need for critical business reports.

Director of Architecture

Sep 2016 - Present
  • Led the migration of Workiva's codebase from a Flash/Flex application to a new HTML5 platform
  • Drove adoption of HTML5 technologies for front end application development
  • Initiated and led the migration of Workiva's codebase from a Flash/Flex application to a new HTML5 platform
  • Was a leader in build out of Bozeman, MT office

Senior Director of Architecture – Workiva

Jun 2014 - Present
  • Directed the creation of an application framework that is the basis for all Workiva solutions. 100 application experiences, and over 200 modules are now built on this framework. 4,000,000 lines of code currently exist within this ecosystem
  • Directed and established a cross-platform content rendering framework that underlies all core Workiva products. A single codebase supports “pixel perfect” rendering of content across multiple runtimes (server, desktop client, web)
  • Lead the development of Workiva's next generation cloud hosted collaborative content editor. This editor supported industry leading content and concurrent user scale using novel CRDT (conflict-free replicated data types) algorithms (10s of thousands of pages of content and thousands of users)

Software Engineer / Engineering Manager – Workiva

Aug 2013 - Mar 2015
  • Drove adoption of HTML5 technologies for front end application development
  • Initiated and led the migration of Workiva's codebase from a Flash/Flex application to a new HTML5 platform
  • Was a leader in build out of Bozeman, MT office

Software Engineer – Workiva

Aug 2010 - Aug 2013
  • Individual contributor to Workiva's flagship online collaborative office product
  • Tasked with creating new features and fixing bugs
  • Full stack development
  • Tasked with criticial, framework and platform
  • Prototyping move to HTML5 and Javascript for Application platform

Developer & Consultant – Various

Jan 2006 - Aug 2010

Delivered custom software for startups and SMBs (SaaS, ad tech, data). Built SMS marketing, kiosk advertising, and CMS platforms as individual contributor and team lead.

Skills & Expertise

Platform

Google Cloud Platform

Cloud

Amazon Cloud Services, Cloud and SAAS Software Development

Framework

Angular, Django, Nuxt Content, Ruby on Rails, Vue.js

Practice

API Design, Design Patterns, Developer Experience and Efficiency, Software Architecture Design, Test Driven Development

Tool

Couchdb, D3.js, SQL

General

CRDT

Leadership

Creating and Communicating Technical Vision, Leading and managing highly distributed development teams, Public Speaking, Strategic Planning, Team Building, Training and Mentoring

Language

Dart, Elm, Python, R, Ruby, Rust, TypeScript

framework

pydantic

Patents

US8943608B2 – Document server and client device document viewer and editor

2015

Resume Version: default • Generated 2025