Mark Sizer
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Mark Sizer Email & Phone Number

Software Architect at CQG at CQG, Inc.
Location: Denver, Colorado, United States 10 work roles 1 school
1 work email found @cqg.com 4 phones found area 303 and 312 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email m****@cqg.com
Direct phone (303) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Software Architect at CQG
Location
Denver, Colorado, United States
Company size

Who is Mark Sizer? Overview

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Quick answer

Mark Sizer is listed as Software Architect at CQG at CQG, Inc., a company with 364 employees, based in Denver, Colorado, United States. AeroLeads shows a work email signal at cqg.com, phone signal with area code 303, 312, and a matched LinkedIn profile for Mark Sizer.

Mark Sizer previously worked as Software Architect at Cqg, Inc. and Chief Software Architect at Instancia. Mark Sizer studied at University Of Wisconsin-Madison.

Company email context

Email format at CQG, Inc.

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{first_initial}{last}@cqg.com
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AeroLeads found 1 current-domain work email signal for Mark Sizer. Compare company email patterns before reaching out.

Profile bio

About Mark Sizer

Experienced System Architect with a thirty year history of working only in the computer software industry. Skilled in Object Oriented Design, Object-Oriented Programming (OOP), Distributed Systems, and System Design. Started with an Apple ][ (BASIC and 6502 assembly) and now taking a course in Quantum Computing.

Listed skills include Object Oriented Design, Uml, Design Patterns, Software Development, and 7 others.

Current workplace

Mark Sizer's current company

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CQG, Inc.
Cqg, Inc.
Software Architect at CQG
1999 N Broadway, Denver,Colorado 80202,United States
Website
Employees
364
AeroLeads page
10 roles

Mark Sizer work experience

A career timeline built from the work history available for this profile.

Software Architect

Current

Denver, Colorado

It's been 14 years. The list is long. Contact me if you are interested.

Aug 2004 - Present

Chief Software Architect

Instancia

Denver, Colorado

Another attempt to commercialize the object oriented, model based development framework I helped develop (see below). I refactored the system, eliminating over 20% of the code without reducing functionality, in order to reduce maintenance costs; worked closely with sales prospects to understand their needs and to explain how our system could meet them.

Sep 2003 - Aug 2004

Director Of Architectural Development

Organic Clinic Corporation

Denver, Colorado

In a company of six people, I was the de facto CTO and also the C++ developer. I took the software out of storage, created the SCM framework for it (CVS, nightly builds, nightly unit tests, bug tracking database, etc...) and restarted development. In addition, I worked closely with the customer-facing people to both prioritize new features/bug fixes and.

Aug 2002 - Sep 2003

Senior Software Engineer

Cqg

Denver, Colorado

Designed and implemented a server-side interface between an Enterprise Java Beans application and a C++ client. Designed a new secure, high-availability authentication and authorization system for the CQG server farm. Began designing an interface between the same C++ client to an ASP-based web application.

May 2001 - Aug 2002

Software Developer

Fort Collins, Colorado

Designed and implemented a Java client and server component to automatically publish data from a wide variety of external sources to the web site. Renewed my SQL and relational modeling skills. Assisted in general maintenance of the ATG Dynamo (a Java Beans and JHTML based application server) driven web site.

Jul 2000 - May 2001

Senior Software Engineer

Velocity.Com

Fort Collins, Colorado

Key member of a research and development team that designed and implemented an MS Windows client object oriented application development framework in C++ with a Matisse object oriented database back-end server. Assisted in the design, maintenance, and support a object oriented database model of healthcare (for an idea of its scope: 12 ANSI E size sheets of.

Oct 1996 - Jun 2000

Software Developer

Medical Desk

Madison, Wisconsin

Developed an OS/2 client/server multi-threaded electronic medical record system using DB2 for persistent storage.

Jul 1994 - Oct 1995

Software Developer

University Of Wisconsin-Madison

Madison, Wisconsin

Wrote and maintained computer-operator systems (e.g. Tape tracking, up-time monitoring, departmental usage) on a VMS VAX cluster for the Madison Academic Computing Center.

Sep 1992 - Jun 1994

Staff Sergeant

Us Air Force

Tyndall AFB (Panama City, FL)

Member of the team which maintained the NORAD air defense system at Tyndall AFB, FL. Key member of the team which optimized the display system (one of five clustered computers operating in hard real-time) in order to extend both the capabilities and lifetime of this extremely space and time constrained system.

Sep 1989 - Aug 1992

Technical Support Specialist

Madison, Wisconsin

Provided three levels of support: First line technical support to the secretary staff transitioning from Wang systems to WordPerfect, technical and programming support to graduate students and professors using SAS, and design and programming of an off-line interface to large (at the time) data sets (international farm import/export data, census data) at.

Sep 1985 - Aug 1989
Team & coworkers

Colleagues at CQG, Inc.

Other employees you can reach at cqg.com. View company contacts for 364 employees →

1 education record

Mark Sizer education

FAQ

Frequently asked questions about Mark Sizer

Quick answers generated from the profile data available on this page.

What company does Mark Sizer work for?

Mark Sizer works for CQG, Inc..

What is Mark Sizer's role at CQG, Inc.?

Mark Sizer is listed as Software Architect at CQG at CQG, Inc..

What is Mark Sizer's email address?

AeroLeads has found 1 work email signal at @cqg.com for Mark Sizer at CQG, Inc..

What is Mark Sizer's phone number?

AeroLeads has found 4 phone signal(s) with area code 303, 312 for Mark Sizer at CQG, Inc..

Where is Mark Sizer based?

Mark Sizer is based in Denver, Colorado, United States while working with CQG, Inc..

What companies has Mark Sizer worked for?

Mark Sizer has worked for Cqg, Inc., Instancia, Organic Clinic Corporation, Cqg, and Cybercrop.Com.

Who are Mark Sizer's colleagues at CQG, Inc.?

Mark Sizer's colleagues at CQG, Inc. include Paulo Schmidt Filho, Debbie Spencer, Sheila Spampinato, Sergey Laushkin, and Fabricio Reis.

How can I contact Mark Sizer?

You can use AeroLeads to view verified contact signals for Mark Sizer at CQG, Inc., including work email, phone, and LinkedIn data when available.

What schools did Mark Sizer attend?

Mark Sizer studied at University Of Wisconsin-Madison.

What skills is Mark Sizer known for?

Mark Sizer is listed with skills including Object Oriented Design, Uml, Design Patterns, Software Development, Distributed Systems, Oop, Software Design, and .Net.

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