Senior Software Engineer
Current
Feb 2018 - Present
AeroLeads people directory · profile
John Callaghan Email & Phone Number
Senior Software Engineer
at
Sigray, Inc.
1 work email found
@sigray.com
2 phones found area 707
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Senior Software Engineer
Location
San Francisco Bay Area, United States, United States
Who is John Callaghan? Overview
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Quick answer
John Callaghan is listed as Senior Software Engineer at Sigray, Inc., based in San Francisco Bay Area, United States, United States. AeroLeads shows a work email signal at sigray.com, phone signal with area code 707, and a matched LinkedIn profile for John Callaghan.
John Callaghan previously worked as Machine Software Architect at Napa Software Development and System Software Architect at Qt Ultrasound. John Callaghan studied at Columbia University.
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Email format at Sigray, Inc.
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{first_initial}{last}@sigray.com
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Profile bio
About John Callaghan
Extensive expertise across a broad range of platforms and operating systems, almost equally split between machine control applications (vision, motion, 3D sensors, image analysis, laser machining) focusing on automated inspection and measurements at the micron and sub-micron level, and communication applications (telephony, SCADA, device drivers).Principal software architect for numerous measurement systems heavily used in the manufacture of mass market mobile devices. As such, I have been a frequent visitor to some of China’s largest factories. My coding endeavors have also taken me to Japan, Malaysia, New Zealand, India, Ireland and the UK.Specialties: C#, C++, WPF, SQL, image processing, motion control, robotics, GUI design, data visualization, Ruby on Rails, HTML, device drivers, embedded programming, parallel processing, computer-telephony, communications protocols and internet technologies.
Listed skills include Software Development, C++, Embedded Systems, C#, and 33 others.
Current workplace
John Callaghan's current company
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9 roles · 23 years
John Callaghan work experience
A career timeline built from the work history available for this profile.
Machine Software Architect
Napa Software Development
Design and code custom machine control software for customers in the medical device and consumer electronics industries.Combine technologies such as C#, WPF, OpenCV, and SQL to integrate motor commands, sensor data, captured images and laser control into visually pleasing, interactive and easy-to-use control applications for both measurement and production.
System Software Architect
Qt Ultrasound
Refactored 50,000+ lines of C++ code, QT screens, Linux batch files and motion control scripts for medical imaging system using Galil motion control and custom ultrasound for data acquisition and CUDA for image processing.Trained software engineers how to use Visual Studio 2017 for Linux C++ development and debugging. Converted company archive system from.
Jul 2016 - Apr 2017
Senior Software Engineer
Raydiance, Inc.
Hired to create from scratch a machine control application that seamlessly integrated motion, vision, sensor and laser control for Raydiance's first in-house CNC machine featuring Raydience's femtosecond laser.In close collaboration with hardware and applications product owners, rapidly prototyped, coded and deployed a highly usable and configurable.
Apr 2014 - Jul 2015
Senior Software Engineer
- Software consultant specializing in micron and sub-micron level 2D and 3D inspection challenges. Designed and coded custom applications that scan, measure and qualify precision-manufactured parts in large.
- ACS, Galil and Aerotech motion controllers,
- Matrox, Cognex and Dalsa image processing, line scan and area scan cameras,
- Chromatic Confocal and Laser Displacement Sensors, Interferometers.Provided on-site and remote support for a variety of custom measurement systems installed at multiple manufacturing locations in China and the US.
Sep 2009 - Mar 2014
Chief Software Architect
Visicon Technologies
Optimized and parallelized algorithms for motion control, pattern matching, image processing, database access, calibration and lighting control.Managed Visicon's four US-based and four India-based software engineers.Led the conversion of Visicon's code base from 32-bit to 64-bit, and from MS-Access to SQL-Server to allow for the capture and efficient.
2003 - Feb 2009
Jul 1999 - Jul 2002
Senior Software Engineer
Managed the Configuration and Installation Software Group.Developed speedy and easy-to-use configuration applications for the all voice and network boards in Dialogic's product line. Created device drivers for Windows, Unix and OS/2.
Jul 1992 - Jul 1999
Software Engineer
Rfl Electronics
Embedded software development for the electric power utility industry.
Oct 1987 - Jul 1992
2 education records
John Callaghan education
Education record
Columbia University
Be, Ee/Cs
Stevens Institute Of Technology
FAQ
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What company does John Callaghan work for?
John Callaghan works for Sigray, Inc..
What is John Callaghan's role at Sigray, Inc.?
John Callaghan is listed as Senior Software Engineer at Sigray, Inc..
What is John Callaghan's email address?
AeroLeads has found 1 work email signal at @sigray.com for John Callaghan at Sigray, Inc..
What is John Callaghan's phone number?
AeroLeads has found 2 phone signal(s) with area code 707 for John Callaghan at Sigray, Inc..
Where is John Callaghan based?
John Callaghan is based in San Francisco Bay Area, United States, United States while working with Sigray, Inc..
What companies has John Callaghan worked for?
John Callaghan has worked for Sigray, Inc., Napa Software Development, Qt Ultrasound, Raydiance, Inc., and Positronics Inc..
How can I contact John Callaghan?
You can use AeroLeads to view verified contact signals for John Callaghan at Sigray, Inc., including work email, phone, and LinkedIn data when available.
What schools did John Callaghan attend?
John Callaghan studied at Columbia University.
What skills is John Callaghan known for?
John Callaghan is listed with skills including Software Development, C++, Embedded Systems, C#, Device Drivers, Agile Methodologies, Integration, and Embedded Software.
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