Senior Software Engineer
Current
Aug 2024 - Present
AeroLeads people directory · profile
Simon Gellis Email & Phone Number
Senior Software Engineer
at
Sundae Labs, Inc.
1 work email found
@attentivemobile.com
3 phones found area 215 and 267
LinkedIn matched
✓ Verified July 2026
4 data sources
Profile completeness 100%
Current company
Role
Senior Software Engineer
Location
New York City Metropolitan Area, United States
Who is Simon Gellis? Overview
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Quick answer
Simon Gellis is listed as Senior Software Engineer at Sundae Labs, Inc., based in New York City Metropolitan Area, United States. AeroLeads shows a work email signal at attentivemobile.com, phone signal with area code 215, 267, and a matched LinkedIn profile for Simon Gellis.
Simon Gellis previously worked as Software Engineer at Attentive and Senior Software Engineer at Lifion, By Adp. Simon Gellis holds Masters Of Science (Ms), Computer Science from New York University - Polytechnic School Of Engineering.
Company email context
Email format at Sundae Labs, Inc.
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*@attentivemobile.com
68% confidence
AeroLeads found 1 current-domain work email signal for Simon Gellis. Compare company email patterns before reaching out.
Profile bio
About Simon Gellis
I am a software engineer building a platform for human capital management at Lifion. I'm a full-stack developer with a focus on server-side and database development. I'm most experienced with Javascript/TypeScript, Rust, C# and ASP.NET, but I always enjoy getting a chance to learn new things. I love making useful software, especially if I can actually use it myself.I've been programming ever since I found Game Maker at age 11, and I graduated from NYU with a BS and MS in Computer Science in four years as part of their accelerated program.
Listed skills include C++, Programming, Python, Eclipse, and 13 others.
Current workplace
Simon Gellis's current company
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4 roles
Simon Gellis work experience
A career timeline built from the work history available for this profile.
Software Engineer
Apr 2021 - Jul 2024
Senior Software Engineer
· Developed microservices backing a low-code web platform used for developing HR software· Designed over a dozen new features based on requirements provided by product owners· Converted feature proposals into JIRA tickets for myself and my team to implement· Triaged outages, performance issues, and defects across multiple domains in a 100+ microservicesystem· Built and maintained a React.js browser extension, with productivity tools for Lifion’s software platform· Architected a tool to write and run low-code UI tests, so that developers could easily test their webpages without automation expertise· Built a tool to measure coverage of UI tests, using existing semantic information on the pages beingtested, to identify gaps where additional testing was needed· Drove multiple large data migrations on live systems without significant downtime· Wrote dozens of custom reports against code artifacts stored in a document database, helping product owners understand how their products were used
Mar 2016 - Mar 2021
Programmer Analyst
- Developed and maintained internal software for the Division of Operations - Full-stack developer (infrastructure, database, server, API, UI) - Made over 1600 commits on 4 projects - Assigned tasks and provided support to junior employees - Taught new developers how to use LINQ, T-SQL, ASP.NET MVC, and other relevant technologies - Wrote automated unit tests to find and diagnose bugs and regressions - Optimized and refactored legacy code, and wrote abstractions and bridge layers to assist with new development on legacy projects
Jul 2013 - Feb 2016
2 education records
Simon Gellis education
Masters Of Science (Ms), Computer Science
New York University - Polytechnic School Of Engineering
Bachelor Of Science (B.S.), Computer Science
New York University - Polytechnic School Of Engineering
FAQ
Frequently asked questions about Simon Gellis
Quick answers generated from the profile data available on this page.
What company does Simon Gellis work for?
Simon Gellis works for Sundae Labs, Inc..
What is Simon Gellis's role at Sundae Labs, Inc.?
Simon Gellis is listed as Senior Software Engineer at Sundae Labs, Inc..
What is Simon Gellis's email address?
AeroLeads has found 1 work email signal at @attentivemobile.com for Simon Gellis at Sundae Labs, Inc..
What is Simon Gellis's phone number?
AeroLeads has found 3 phone signal(s) with area code 215, 267 for Simon Gellis at Sundae Labs, Inc..
Where is Simon Gellis based?
Simon Gellis is based in New York City Metropolitan Area, United States while working with Sundae Labs, Inc..
What companies has Simon Gellis worked for?
Simon Gellis has worked for Sundae Labs, Inc., Attentive, Lifion, By Adp, and New York University.
How can I contact Simon Gellis?
You can use AeroLeads to view verified contact signals for Simon Gellis at Sundae Labs, Inc., including work email, phone, and LinkedIn data when available.
What schools did Simon Gellis attend?
Simon Gellis holds Masters Of Science (Ms), Computer Science from New York University - Polytechnic School Of Engineering.
What skills is Simon Gellis known for?
Simon Gellis is listed with skills including C++, Programming, Python, Eclipse, C, Css, Javascript, and C#.
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