AeroLeads people directory · profile
John A. Email & Phone Number
Senior Director of Product Engineering
at
Rhombus
1 work email found
@rhombussystems.com
LinkedIn matched
✓ Verified Jul 2026
4 data sources
Profile completeness 86%
Current company
Role
Senior Director of Product Engineering
Location
Sacramento, California, United States
Company size
Who is John A.? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John A. is listed as Senior Director of Product Engineering at Rhombus, a with 215 employees, based in Sacramento, California, United States. AeroLeads shows a work email signal at rhombussystems.com and a matched LinkedIn profile for John A..
John A. previously worked as Director of Engineering, Frontend at Rhombus and Front End Lead at Rhombus Systems. John A. holds Bs, Biomedical/Medical Engineering from California Polytechnic State University-San Luis Obispo.
Company email context
Email format at Rhombus
This section adds company-level context without repeating John A.'s masked contact details.
{first}@rhombussystems.com
89% confidence
AeroLeads found 1 current-domain work email signal for John A.. Compare company email patterns before reaching out.
Profile bio
About John A.
I'm John, a Software Engineer!Lately I've been working in React (Web) and React Native (Mobile) using Typescript, Objective-C, and Java. In the past, I've loved working with Scala to build distributed, scalable server applications in AWS.Languages (ranked by current proficiency):+++++ JavaScript + Typescript++++ Objective-C ++++ Scala++++ Java +++ C (firmware development)Frameworks / Tools:- React, React Native, Angular, jQuery- NPM- SBT, Play, Akka, Guice - Maven, Gradle, Spring, Struts - EarlGrey iOS Testing Framework, Mockito, JUnit- Git, Cocoapods, Perforce
Current workplace
John A.'s current company
Company context helps verify the profile and gives searchers a useful next step.
Rhombus
7 roles
John A. work experience
A career timeline built from the work history available for this profile.
Director Of Engineering, Frontend
Helping build the next generation of video, audio, and sensor based security using React, React Native, Objective-C, and Java.
Front End Lead
Senior Software Engineer
Dec 2019 - Dec 2021
Software Engineer
Petnet.Io
Objective-C, Scala
Jun 2016 - Dec 2019
Apr 2012 - Jul 2016
Feb 2011 - Feb 2012
Team & coworkers
Colleagues at Rhombus
Other employees you can reach at rhombussystems.com. View company contacts for 215 employees →
JC
Janet Chen
Colleague at RhombusTaipei, Taipei City, Taiwan, Province Of China
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SG
Sonia Garcia
Colleague at RhombusHouston, Texas, United States
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NW
Nick Walker
Colleague at RhombusUnited States
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BC
Benny Calderon
Colleague at RhombusSan Diego, California, United States
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TM
Tyler Marshall
Colleague at RhombusManchester, New Hampshire, United States
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RH
Rob Habel
Colleague at RhombusUnited States
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TB
Teslet Botones
Colleague at RhombusElk Grove, California, United States
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DM
David M.
Colleague at RhombusGranite Bay, California, United States
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RA
Robert Au
Colleague at RhombusDavis, California, United States
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CM
Christina Meneses
Colleague at RhombusSacramento, California, United States
View →
Janet Chen
Colleague at RhombusTaipei, Taipei City, Taiwan, Province Of China
View →
SG
Sonia Garcia
Colleague at RhombusHouston, Texas, United States
View →
NW
Nick Walker
Colleague at RhombusUnited States
View →
BC
Benny Calderon
Colleague at RhombusSan Diego, California, United States
View →
TM
Tyler Marshall
Colleague at RhombusManchester, New Hampshire, United States
View →
RH
Rob Habel
Colleague at RhombusUnited States
View →
TB
Teslet Botones
Colleague at RhombusElk Grove, California, United States
View →
DM
David M.
Colleague at RhombusGranite Bay, California, United States
View →
RA
Robert Au
Colleague at RhombusDavis, California, United States
View →
CM
Christina Meneses
Colleague at RhombusSacramento, California, United States
View →
1 education record
John A. education
FAQ
Frequently asked questions about John A.
Quick answers generated from the profile data available on this page.
What company does John A. work for?
John A. works for Rhombus.
What is John A.'s role at Rhombus?
John A. is listed as Senior Director of Product Engineering at Rhombus.
What is John A.'s email address?
AeroLeads has found 1 work email signal at @rhombussystems.com for John A. at Rhombus.
Where is John A. based?
John A. is based in Sacramento, California, United States while working with Rhombus.
What companies has John A. worked for?
John A. has worked for Rhombus, Rhombus Systems, Petnet.Io, Blackboard, and Retail Pro International, Llc.
Who are John A.'s colleagues at Rhombus?
John A.'s colleagues at Rhombus include Janet Chen, Sonia Garcia, Nick Walker, Benny Calderon, and Tyler Marshall.
How can I contact John A.?
You can use AeroLeads to view verified contact signals for John A. at Rhombus, including work email, phone, and LinkedIn data when available.
What schools did John A. attend?
John A. holds Bs, Biomedical/Medical Engineering from California Polytechnic State University-San Luis Obispo.
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