# Jason G.

> Software Engineer

Location: United States, United States
Profile: https://flows.cv/jasong

## Work Experience
### Senior Software Engineer @ Vareto
Jan 2023 – Present

### Senior Software Engineer II @ Smartsheet
Jan 2021 – Jan 2022
• Design champion for complete modernized replacement of client grid codebase
• Created virtualized, highly performant, spreadsheet React component
• Led coordination between front end grid teams and service teams, defining requirements and API endpoints
• Led team of 5 building new reusable grid component library

### Sr. Software Development Engineer @ Smartsheet
Jan 2018 – Jan 2021
• Subject matter expert for all core views grid/gantt/card, interactions, behaviors, permissions, save and merge logic, import and export logic
• Primary contact point for integrating external features into web app grid views.
• Led team of 3 refactoring  grid rendering and layout to reduce node count and virtualize columns, increasing rendering and scrolling performance by 300%
• Redesigned dynamic row sizing logic, increasing performance by 1000%
• Mentored intern through successful completion of the column description feature (UX elements, security, save, tests, etc)

### Software Development Engineer II @ Smartsheet
Jan 2016 – Jan 2018 | Bellevue, WA
• Led team of 4 to successfully add multi-contact data type, involving updating all core features to handle the new data type
• Created charts and graphs builder UX
• Created new sheet view, CardView, and all user interactions, menus, localizations, animations, self repairing ranking logic and server side merge logic
• Built new features in CardView including fast card creation, additional grouping options, lane collapse/expand, and card subtasks
• Extended sensitive permissions based sharing logic to provide granular sheet/dashboard/report sharing options

### Software Development Engineer @ Smartsheet
Jan 2013 – Jan 2016 | Bellevue, WA
• Primary engineering team escalation contact. Created initial escalation process to handle support requests faster and reduce engineer randomization
• Refactored gantt view to handle time increments down to 1ms
• Extended MPP/csv import/export to better support dependencies and keep dependency calculations across platforms more consistent
• Implemented API Excel workbook import (multi-sheet bulk import)
Continuous bug fixing - 200+ bugs fixed across entire platform

### Software Development Engineer Intern @ Smartsheet
Jan 2012 – Jan 2013 | Bellevue, WA
• Extended Excel import logic utilizing Apache POI to lex, parse, and covert Excel formulas into equivalent Smartsheet formula syntax
• Fixed formula calculation and parity bugs in client and server side formula engines
• Simplified Excel import logic, improved error handling, and increased performance

### Reserve Test Associate @ Volt
Jan 2011 – Jan 2011 | Redmond, WA
Microsoft GTO game test reserve for the XBox 360 title: Gears of War 3.

### Technician @ CORESTAFF Services
Jan 2006 – Jan 2007 | Kirkland, WA
Level 2 software support. Resolved customer problems with Rhapsody, Real Player, and Real Arcade 
software via phone, email, and live chat.


## Education
### BS in Computer Engineering
Brigham Young University - Idaho


## Contact & Social
- LinkedIn: https://linkedin.com/in/jason-gessel

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Source: https://flows.cv/jasong
JSON Resume: https://flows.cv/jasong/resume.json
Last updated: 2026-03-22