Alumni -- Former Students


John Costello (1953) B.S. in Physics.

Brian Duperreault (1956)
Brian Dupperault was a mathematics major. He became an actuary and is now the chief executive of a New York insurance company.



Irene Halasz Farley (1965)
B.S. in Mathematics; mathematics teacher, athletics coach, Philadelphia High School for Girls, 1975-

George T. DeCecco (1966)
Mr. DeCecco was named Manager, Operations Analysis for Boeing Helicopters in 1996. In his current assignment he has responsibility for the administration and technical management of the Operations Analysis organization in support of Business Development. His efforts are focused on ensuring the conduct of effective studies & analyses and the delivery of products that support the strategic plans of the Director of Business Development. He also provides studies & analysis support to internal Boeing program/project management and to external customer communities (military and civil) in their requirements definition and product acquisition decision processes.

Mr. DeCecco joined the Boeing Company in 1966 as Associate Engineer, R&D Dynamics. In that position he worked on the analysis of vibration and aeroelastic phenomena in support of concept development for advanced (tilt wing/tilt rotor) aircraft. This included the development of predictive computer codes for design support and their validation through wind tunnel testing.

In 1969 he moved to Systems and Operations Analysis and progressed through a series of assignments from Staff Analyst to Senior Operations Analyst. In these positions he was responsible for the design, development and implementation of methods and models. His efforts were consistently directed toward decision support systems for management and toward systems/studies used to support military and commercial customers. Problem areas included transportation analysis and competitive market analysis for Boeing rotorcraft products/programs.

In 1985 he became Manager of Analysis and Strategic Requirements and was responsible for managing the development of technical methods/models and for their application to studies & analyses in support of New Business Development. In this position his efforts were aimed at solving problems in the areas of customer requirements, comparative cost and operational effectiveness analyses (COEAs) and the analysis of product competitiveness in the marketplace.

In 1990 he was appointed Manager, Systems & Operations Analysis with responsibility for Studies and Analyses in support of Business Development and Planning. In 1996 his responsibilities were broadened to include the full range of Market and Competitor issues and his position title was briefly Manager, Strategic Analysis; it was changed to Manager, Operations Analysis to be more generally recognizable to his internal and external customer communities. In 2002 Mr. DeCecco was promoted to Second Level Management in recognition of his increased responsibilities and career achievements.

Mr. DeCecco received the Bachelor of Science degree in Mathematics from Saint Joseph.s University and the Master of Arts degree in Mathematics from Villanova University. He is author of several technical reports and publications and his professional affiliations include the Military Operations Research Society (MORS) and the Army Aviation Association of America (AAAA).

Mr. DeCecco can be reached at

Robert Corbett (1968)
B.S. in mathematics; electrical engineer, engineering executive, director of lighting strategy, International Rectifier, El Segundo, Calif., 1996-

Michael C. Finn (1969)
B.S. in mathematics; After receiving an MS degree in Mathematics in 1971 from Purdue University, Mr. Corbett pursued a career in government, and accepted early retirement in September 2004 from the Social Security Administration. He is now doing volunteer work for his parish church. Mr. Corbett can be reached at



John D. Zook (1971)
John ("Jack") Zook is the founder and managing director of the firm and combines over twenty five years of diversified experience. His primary responsibilities include business structuring, profitability analysis, acquisition due diligence, entity selection and general tax and business planning.

Prior to founding Zook, Dinon & Roman, P.A. in 1979, Jack was a member of the audit staff of the international accounting firm of PricewaterhouseCoopers (formerly Coopers & Lybrand) and served as an industry specialists for utilities and hospitals. He was also a financial analyst with Bell Atlantic (formerly Bell of Pennsylvania).

For over the past twenty years Jack has been a full-time faculty member in the accounting department at La Salle University. As an assistant professor, he has taught financial and managerial accounting and taxation at both the undergraduate and graduate levels. His articles have been published in a number of professional journals including the CPA Journal, Taxation for Lawyers, Taxation for Accountants, Personal Financial Planning and the Ohio CPA Journal. He has been quoted in such publications as Financial World and Success magazine.

Jack holds a Masters Degree in Business Administration from Drexel University and a Bachelors of Science in Mathematics from St. Joseph's University. He is a licensed Certified Public Accountant in New Jersey, Pennsylvania and Florida. He is a member of the American Institute, the New Jersey Society, the Pennsylvania Institute and the Florida Institute of Certified Public Accountants.

Currently, Jack serves as Treasurer and a member of the Board of Directors for the Delaware Valley Habitat for Humanity, and as Treasurer and a member of the Board of Directors for the Union League of Philadelphia.

William Doyle (1971)
B.S. in Mathematics; Mr. Doyle is the President and CEO of the Bridlebrook Group, Inc., an investment banking and business brokerage firm. He can be reached at

Michael Wescott (1972)
B.S. in Mathematics; Software developer for the EMC Corp. Mike can be reached at

Stephen Yarmolyk, Jr.(1972)
B.S. in Mathematics; Mr. Yarmolyk has served in the capacity of Vice President of Contracts and Group Counsel for Titan Corporation’s National Intelligence Solutions Group in Annapolis Junction MD since January 2004. In this capacity, Mr. Yarmolyk is responsible for overseeing contract, subcontract, procurement and in-house legal activities. He directs participation in proposals, procurements, pre-negotiation activities, negotiation strategies, legal issue resolutions, intellectual property matters, software licensing and complete contract and subcontract administration and closeout. Prior to joining Titan, Mr. Yarmolyk was employed for over 17 years at Computer Sciences Corporation, where he held various positions in Contracts and Procurement, rising to the position of Director of Contracts, Defense Group.

Mr. Yarmolyk is married and has one son. He has a BS in Mathematics from Saint Joseph’s University, and MBA from Temple University Graduate School of Business and a JD from Temple University School of Law. He is licensed to practice law in PA and NJ.

George McGuinness (1973)
B.S. in Mathematics. George received his MBA from Lehigh University and is presently the Director of Administration and Finance for The Seeing Eye, Inc. in Morristown, NJ. George can be reached at

Kathy (Breakey) Ertwine (1974)
B.S. in Math; After graduation Kathy earned a Master's degree in Engineering and worked for 14 years designing computers. She then retired to be a full time mom and loves every minute of it. Kathy can be reached at

Mohan Vij (1976)
Mohan was a mathematics major at St. Joe's, and he is currently a senior lecturer in mathematics at Gnpks college in Punjab. Mohan can be reached at

Richard J. Brennen (1976)
Rich was a mathematics major at St. Joe's. After earning an MBA at Temple University, he joined IBM, where he spent 16 years in various sales, general management, and consulting roles. In 1993, he moved to Chicago, when he joined Spencer Stuart, one of the largest executive search firms in the world. For past several years, Rich has led a global Information Technology practice and has recruited the Chief Information Officers for some of the largest companies in the world including United Airlines, Dell Computer, Visa, etc. He is also a member of the board of directors. Rich can be reached at

Phil Brogan (1979)
Phil was a mathematics major. He is currently working as a Software Developer for the Shared Medical Systems. Phil can be reached at

Michael Nori (1979)
B.S. in Mathematics. Mike can be reached at

Joseph Petragnani (1979)
Joe was a mathematics major, and he is now the director of the Networking and Telecommunications Department at Saint Joseph's. Joe can be reached at

Marie Davis
Marie was a mathematics major who married another one of our alumni, Joe Romano.

Anthony A. DeMarco
Mr. DeMarco is the President and Managing Member of PRICE Systems L.L.C., a privately held company in Mt. Laurel, New Jersey. PRICE is the world leader in Parametric Planning, Estimating, and Budgeting tools and services with clients in the North America, South America, Europe, and the Pacific Rim. PRICE introduced the first commercially available Hardware and Software Cost Estimating Models in 1975 and attained its industry leading position through dedication to speed, quality and customer satisfaction.

Mr. DeMarco received a Bachelors degree in Mathematics from St. Joseph's University in Philadelphia, Pennsylvania, and a Masters degree in Computer Science from the New Jersey Institute of Technology in Newark, NJ.

Since joining PRICE Systems in 1981, Mr. DeMarco's accomplishments have included the development of the PRICE electronics cost model (PRICE M), major enhancements to the PRICE hardware model (PRICE H), and the personal computer program XPERT/H. As PRICE Product Development Manager for several years, Mr. DeMarco led a team of operations researchers, logisticians and computer scientists in the development of parametric models and tools to serve the cost estimating and analysis community. During his tenure as the leader of PRICE Systems, PRICE migrated its tools to desktop and client/server computing platforms and has introduced several new services including professional services, tailored on-site training, PRICE Enterprise and the PRICE Knowledge Manager.

Mr. DeMarco is a recognized expert and frequent speaker on predictive parametric modeling and has published many papers on the subject. In 1997, Mr. DeMarco received the highest honor bestowed by the International Society of Parametric Analysts (ISPA), the Freiman Award. In 2001, NASA Administrator Daniel S. Goldin appointed Mr. DeMarco to serve on the International Space Station Management and Cost Evaluation Task Force (IMCE) to help NASA address cost growth on the program by assessing the quality of the ISS cost estimates as well as program assumptions and requirements, and by identifying high-risk budget areas and potential risk mitigation strategies.

In 1998, Mr. DeMarco led the management buyout of the PRICE Systems business unit from the Lockheed Martin Corporation to form PRICE Systems, L.L.C. PRICE is now an independent employee-owned business dedicated to helping enterprises sustain profitable growth through faster, better planning, estimating and budgeting.

Mr. DeMarco can be reached at



John Conroy (1980)
John received his B.S. in Mathematics from St. Joseph's and Ph.D. in Applied Mathematics from University of Maryland. He currently works at the Institute for Defense Analysis, Center for Computing Sciences in Bowie, MD. John can be reached at:

Gerald Perham (1980)
Gerry was a mathematics major, and he is now a Space Science Engineer at Lockheed Martin. Gerry's e-mail is:

Paris Taylor Mansmann (1980)
B.S. in Mathematics; medical educator, associate professor of medicine, West Virginia University, Morgantown, 1995-

Henry Mendenhall (1980)
Henry is a principal member of the Engineering Staff, working in the Artificial Intelligence Laboratory, a component of the Lockheed Martin Advanced Technology Laboratory.

Thomas Haser (1981)
B.S. in Mathematics. Tom is a Senior Program Manager at Business Development section of Lockheed Martin Management & Data Systems. He can be reached at

Suzan (Can) Koknar-Tezel (1985, 1993)
B.S. and M.S. in Computer Science. Suzan is currently an assistant professor of Computer science at St. Joe's and can be reached via email at

Angela Pawlowski (1986)
Angela was a computer science major and is also a graduate of our master's program. She now works as the Manager of the AI Programs at Lockheed Martin Advanced Technology Group. Angela's technical area of expertise is multi-sensor fusion. In 1990, she married David Olejnik, another computer science alumnus who also received his B.S. and M.S. from Saint Joseph's. Angela and David are proud parents of Michael, who was born in 1997. Angela's email address is

Jeff Bachovchin (1989)
Jeff graduated with a degree in mathematics from our department, and he is currently the Director of Web Services at Saint Joseph's University. Jeff can be reached at

William Regli (1989)
Bill was a double major in Mathematics and Computer Science. He received his Ph.D. in artificial intelligence from the University of Maryland and is currently a member of the computer science faculty at Drexel. Bill can be reached at

Annette DiBernardino (1989)
Annette received her B.S. in mathematics and she is currently an actuary at DuPont. She can be reached at



Patrick Ryan (1990)
Pat ( was a computer science major and also a graduate of our master's program in CSC. Since 1990, Pat has been working as a professional software developer. He has been working for several years as a consultant for Object Systems Group ( His expertise is in object-oriented software development, primarily in the use of Smalltalk and Java.

Dimitrios Argyris (1993)
Dimitrios is an S&D Production Manager with Information Resources Inc (I.R.I.), which is a Market Research Company based in Chicago and with many branches in Europe. He joined Information Resources Hellas in 1995. Dimitrios's email address is

Glenn Brunette (1993 B.S., 1999 M.S.)
Glenn was a computer science major and he is currently working as a Network Security Architect at Sun Microsystems, Inc. As the lead Network Security Architect for the SunPS North East Area Technology Practice, he works with many Fortune 500 companies on projects ranging from Security Assessments, Architecture Development to Architectural Reviews. Glenn can be reached at

Stacey Sweeney (1994)
Stacey received a degree in mathematics, and she currently holds the position of Network Manager at Saint Joseph's University (

Len Juliani (1995)
B.S. in Mathematics. Len is an actuary working for AEGON, assisting in the financial reporting and forecasting for life and health insurance business. Len can be reached at

Matthew Zeits (1996, 2001)
Matt received his M.S. in computer science and B.S. in physics from SJU. He is currently a project manager at Diginexus. His duties include leading technical efforts of multiple engineers, mentoring junior engineers, and managing projects using modern project management techniques. Matt can be reached at

Paul Kandavalli (1996)
Paul received his B.S. in computer science from SJU. He is currently a Technology Operations Change manager at J.P. Morgan Chase. His duties include Monitoring and regulating the technology changes for the Credit Card Services. Paul can be reached at

Joseph Kampf (1997)
B.S. in Computer Science. Joe is currently a senior consultant at Anexinet in charge of developing J2EE solutions for Fortune 1000 companies. He can be reached at

Michael Sokorai (1997)
B.S. in Computer Science. Mike is currently the Director of Information Technology at Defense Support Services. He can be reached at

Stephen Bochanski (1998)
Steve received his B.S. in Mathematics and is now an actuary working for PricewaterhouseCoopers Steve's group specializes in the demutualizations of mutual insurance companies that decide to convert to stock companies to be publicly owned and traded. Steve has passed the first two Society f Actuaries exams.

Bridget Zachwieja (1998)
Bridget was a mathematics major. She can be reached at

Joseph "Pidge" Pedano (1998)
B.S. in Computer Science with minor in Mathematics. Pidge is currently the Manager of Product Development for FASTNET, Inc. a regional Internet company based in Bethlehem, PA. Before FASTNET, he worked at Comcast Business Communications, where he was the Manager of Data Engineering and Performance Management. At CBC, his responsibilities include handling Tier 4 issues escalated from the NOC and the performance management of both CBC's Internet Backbone and private data connectivity network. He is well versed in networking technologies, Internet topologies, and industry-best operations practices, as he has supported many companies over the past 10 years. This experience enabled him to become the youngest Manager at CBC. While not working, he coaches a little league inline hockey team and is captain of a roller hockey team in Pottstown, PA. He currently resides in Limerick, PA. and can be reached at

Jennifer Rafferty (1999) B.S. in Mathematics.

Vinod Reddy (1999)
Vinod obtained his M.S. in Computer Science and is currently a software engineer at Bell Atlantic Network Services Inc. Vinod can be reached at

Stephen Speck (1999) B.S. in Computer Science.

Michael Spillane (1999) B.S. in Mathematics.

Brendan Sullivan (1999) B.S. in Mathematics.

Mark Cole (1999) B.S. in Mathematics.

Nickolas Corley (1999) B.S. in Mathematics.

Dennis Duffy (1999)
B.S. in Mathematics. Dennis is a presently a Captain/Test Director in HQ Air Mobility Command Test and Evaluation Squadron, where he conducts operational test and evaluation, assesses new tactics and concepts, and performs logistics service tests on USAF airlift and tanker aircraft mission systems and associated support equipment. Dennis can be reached at

Jody Gruber (1999) B.S. in Mathematics.

James Keating (1999) B.S. in Computer Science.

Shannon Martin (McCall) (1999)
B.S. in Mathematics. Shannon is a High School Math Teacher. She currently teaches high school math (algebra 1 to AP Calculus BC) in Bucks County where she is coordinator of the Key Club, a community service organization. Shannon has also worked as an adjunct professor for Temple University's Statistics Department. She can be reached at



Brendan Browne (2000) B.S. in Computer Science.

Matthew Formica (2000)
B.S. in Computer Science; Matt graduated in May of 2000 and started as a software engineer at Apple Computer in June 2000. Matt can be reached at

Pamela (Heckman) Insalaca (2000)
B.S. in Mathematics; Pam married SJU alum Salvatore Insalaca '99 in August 2001 and is currently teaching basic Geometry and Algebra courses along with SAT Prep and a PSSA Prep course at Delaware Valley School District. Pamela can be reached at

Bobby Kelly (2000)
B.S. in Mathematics. Bobby currently teaches 8th grade math classes (Pre-Algebra and Algebra I) at Holland Middle School in Bucks County. He's also co-directing the school musical as well as coaching Richboro Middle School's MathCounts team. Bobby can be reached at

Jason Lenthe (2000)
B.S. in Computer Science. Jason works as a software engineer for Lockheed Martin.

Reena Mitra (2000)
M.S. in Computer Science. Reena can be reached at

Mandy McKeogh (2001)
B.S. in Mathematics. Mandy is an actuarial consultant at the McKeogh Company. she can be contacted at

Joseph Jacobs (2001)
B.S. in Computer Science. Joe is a Software Engineer at the Naval Surface Warfare Center (NAVSSES), where he develops operational software for the U.S. Navy surface ships. Joe can be reached at

Bobby Kelly (2002)
B.S. in Mathematics. Bobby currently works as a math teacher by day at the Richboro Middle School and is enrolled as a pre-med student by night at Drexel University. Bobby can be reached at

Kuldeep Naik (2002)
M.S. in Computer Science & Information Systems. Kuldeep is an application developer/analyst for Fleet Credit Card Services. His responsibilities include design, development and maintenance of business systems, with expertise in the areas of systems architecture, analysis and detailed design. Kuldeep can be reached at

Vincent Russo (2003 & 2004)
B.S. & M.S. in Mathematics. Vincent is a math teacher at Conestoga High School in Berwyn, PA. Vincent can be reached at

Christopher Dugan (2004)
B.S. in Mathematics. Chris is a Research Assistant at Drexel University working towards his Masters in Computer Science under the supervision of Dr. William Regli (SJU alum). His area of interest is in AI gents. Chris can be reached at

Keerthi Pusuloori (2006)
M.S. in Computer Science. Keerthi is an Oracle iStore Technical Developer at GE's healthcare division in Salt Lake City, Utah. She is in charge of customizing Java and JSP pages pertaining to Oracle iStore, also creating iStore templates, minisites, etc. Keerthi can be reached at

Abhineet Mittal (2006)
M.S. in Computer Science. Abhineet is a Java Developer working for General Motors, where he mentors a team of 8 developers and is responsible for maintaining the site functionality of GM. Abhi can be reached at

Praveena Reddy Nalamada (2006)
M.S. in Computer Science. Praveena is a Senior Application Developer at the Yellow Book Corp. She can be reached at