Matrix LogoMeet Our Staff Image


Matrix Engineering's technical staff represents some of the most talented and highly qualified personnel available in the field of structural engineering. Our team includes structural engineers who are not only strong conceptual thinkers, but who also can work out the details. But more than our technical qualifications, our clients benefit from the way we deliver our service. We never forget that serving our clients requires superior responsiveness, and sensitivity to budgets and schedules.

Gene C. Mojekwu, PhD, PE, SE

Ka-Lung Ng, SE, PE
Associate Principal

Sudhir K. Singamsethi, SE, PE
Associate Principal

Aphrodite Angelakos, SE, AIA
Senior Structural Engineer

Jeff Thompson, PE
Senior Structural Engineer

Jacqueline I. Ammar

Chaitanya Date

Ona Okoli

Eric M. Malone

Nelly Perez
Office Manager

Meet Our Staff Image GENE C. MOJEKWU, PhD, PE, SE, Principal. Dr.Mojekwu is President of Matrix Engineering Corporation. He has over twenty-two years of combined practical, teaching and research experience in the fields of structural engineering, advanced structural mechanics and foundation engineering. He has extensive experience in the structural design of buildings, environmental facilities and special structures, as well as the evaluation, rehabilitation and restoration of existing structures.

In addition to his duties as president of Matrix Engineering Corporation, Dr.Mojekwu is active in Structural Engineering education. Since 1992, he has served as an Adjunct Associate Professor of Structural Engineering in the School of Architecture, University of Illinois at Chicago. He has also served in a similar capacity at Texas Tech University, the University of Texas at Arlington and Illinois Institute of Technology.

Dr.Mojekwu has been published, has several award-winning designs, and is an associate member of committee 340 of the American Concrete Institute. He earned a Bachelor of Science and Master of Science degrees in Civil Engineering from Texas Tech University and a doctorate in Structural Engineering from the University of Texas at Arlington. He is currently licensed as a Professional and Structural Engineer in the state of Illinois, as well as 40 other states. He is a member of the American Society of Civil Engineers and the Structural Engineers Association of Illinois.

Meet Our Staff ImageKA-LUNG NG, SE, PE, Associate Principal. Ka Lung is experienced in the design of low-rise, mid-rise, and high-rise buildings and serves as a Project Manager on variety of structural engineering projects during the design phase as well as the construction administration phase. He earned his Bachelor of Science in Civil Engineering and Master of Science in Civil Engineering degrees from the University of Illinois at Chicago.

Meet Our Staff ImageSUDHIR K. SINGAMSETHI, SE, PE, Associate Principal. Sudhir is a licensed Structural engineer in the State of Illinois and a licensed Professional Engineer in the state of Wisconsin with more than 9 years of structural engineering experience. Sudhir joined Matrix Engineering in 2005 and has since worked on a wide variety of commercial, industrial, institutional, residential and environmental building projects in the capacities of an engineer, project engineer, and project manager.

Sudhir earned a Bachelor of Technology degree in Civil Engineering from Indian Institute of Technology (IIT) – Delhi, India and a Master of Science degree in Civil Engineering from the University of Illinois at Urbana-Champaign. Since fall of 2006, Sudhir has been teaching the structural portion of the PE-Civil exam, bi-annual review course offered by Illinois Society of Professional Engineers (ISPE) at Schaumburg-IDOT office. Sudhir also served as an Assistant Adjunct Faculty in spring 2011 and serves as a guest lecturer at the Graduate School of Architecture, University of Illinois – Chicago.In addition to his duties at Matrix Engineering Sudhir has also volunteered for the ASCE – Illinois Section, Structural Technical Group in various capacities.

Meet Our Staff ImageAPHRODITE ANGELAKOS, SE, AIA, Senior Structural Engineer. Ms. Angelakos is a Senior Structural Engineer at MEC, conducting reviews for projects to be permitted by the City of Chicago through the Developer Services Program, as well as conducting structural peer review of projects for expedited permitting by the City of Chicago. She has also been reviewing projects, as a part of a design management team, for capital Improvement of Chicago Public School facilities. She has also been a structural reviewer of proposed placement of cellular telephone antenna equipment on existing Chicago Public School facilities.

In her more than twenty-five years of experience, she has worked as a structural permit reviewer at the City of Chicago Department of Buildings, as well as serving as a structural design engineer at different companies in the private sector, where she has managed all phases of design and construction of new buildings and additions to existing structures. In 1996, Aphrodite received the SEAOI’s Certificate of Honor for her work on the Chicago General Mail Facility-United States Postal Service, prior to working at Matrix.

JEFF THOMPSON, PE, Senior Structural Engineer. Jeff has over 10 years of experience in the field of structural engineering. He is originally from the west coast, attending Cal Poly SLO to obtain an architectural engineering (ARCE) degree before moving to Seattle to work. His experience has given him extensive knowledge in all building materials and working with both seismic and wind dominated load combinations. Jeff is able to contribute to projects at all levels, from conceptual planning through design and construction administration. He has worked on nearly all types and sizes structures, as well as existing structure rehabilitation and evaluative report writing.

Meet Our Staff ImageJACQUELINE I. AMMAR, Engineer. Jacqueline has over 14 years of experience in the field of Structural Engineering. She specializes in Construction Administration and is currently working on a diverse cross section of building types including commercial, industrial, residential (high and low rises), institutional and governmental buildings. Jacqueline earned a Bachelor of Architecture with a major in Engineering from the University of Illinois in Chicago. She also attained a Master of Science in Structural Engineering from UIC Chicago. Some of her recent projects include the UIC South Campus Mixed Use Development, an eighteen story residential tower at 828 W. Grace, a 29 story residential tower at 1464 S. Michigan Avenue,The Ogden International School and The Chicago Theological Center at University of Chicago.

Meet Our Staff ImageONA OKOLI, Engineer. Ona performs general structural design duties for Matrix. Ona earned her Bachelor of Science in Civil Engineering degree at the University of Illinois at Urbana/Champaign. She earned her Master of Science in Structural Engineering degree at Rice University in Texas. Ona is a member of the Society of Women Engineers.

Meet Our Staff ImageERIC M. MALONE, Drafter. Eric has been a drafter with Matrix Engineering since 1998. He earned both an Associate Applied Science degree in Computer Aided Drafting and a Bachelor of Art Science degree in Graphic Design from Robert Morris College in Chicago.

Meet Our Staff ImageNELLY PEREZ, Office Manager. Nelly has been with Matrix since 1999. She is responsible for directing and maintaining all administrative aspects of the office. She assists with billing, accounting, and shipping tasks, and provides support to the entire Matrix staff. Nelly earned her diploma from the Taylor Business Institute. She is also a certified Notary Public for the State of Illinois.