See Bio

Kouhaila (Ki) Hammer

Chairman + CEO

Throughout a celebrated career of nearly 40 years, Kouhaila has never been satisfied with the status quo. An entrepreneur at heart, Ki is in constant search of new opportunities to drive our organization forward, approaching every business decision with a progressive vision complemented by pragmatism. As G-TECH’s Chairman and Chief Executive Officer, she leads a culture that values innovation, collaboration, and the entrepreneurial spirit in everyone.

Ki holds a Bachelor of Arts in accounting from Michigan State University. A strong advocate of community involvement, she recently served as President of the Engineering Society of Detroit. She currently sits on the boards of the Community Foundation for Southeastern Michigan and the Rackham Foundation, as well as the Detroit Regional Chamber board and executive committee. She is also a member of the International Women’s Forum and has been recognized as one of the 100 Most Influential Women in Michigan by Crain’s Detroit Business three times (most recently in 2016).

See Bio

Nicole Ghafari


As Principal, Nicole strives to advance G-TECH’s mission, values, and vision through a variety of strategic initiatives focused on employee engagement, internal and external communications, and key partnerships. With nearly a decade of marketing experience, she believes that clear communication is at the crux of operational effectiveness and successful collaboration.

Nicole holds a Master of Business Administration with honors from the University of Chicago Booth School of Business and graduated magna cum laude from Boston College with a Bachelor of Science in management. An active Chicago Booth alumna, she serves on the admissions committee as a candidate interviewer and application reviewer. She is also involved with the school’s professional women’s forum, Graduate Women in Business.

See Bio

Madhu Posani

President + COO

As our President and Chief Operating Officer, Madhu drives the mission, values, and vision of G-TECH each and every day by encouraging our team members to meet their full potential and achieve their goals. With a background in engineering that spans over 30 years, Madhu is committed to implementing top-of-the-line tools, technologies, and processes that strengthen G-TECH’s recruiting and placement infrastructure. He facilitates efficient and optimized service delivery, while enabling our team to generate value for Fortune 500 clients.

Madhu earned a Master of Science in industrial engineering from Kansas State University and a Bachelor of Science in mechanical engineering with honors from Madras University in India. As a product engineer and innovator, he holds multiple patents for automotive parts that are vital for vehicle safety.

See Bio

Debbie Blair

Director of Recruiting Operations

With nearly 20 years of experience across the full spectrum of staffing solutions, Debbie has a passion for empowering individuals to achieve their career ambitions, as well as for problem solving and strategy development. As G-TECH’s Director of Recruiting Operations, she is constantly seeking ways to improve our service delivery and leveraging the power of technology and data to support a recruiting approach that's focused on responsiveness and efficiency.

Debbie is a TechServe Alliance Certified Professional Services Recruiter, Technical Services Certified by the American Staffing Association (ASA), and an ASA Certified Staffing Professional. She has served on the TechServe Alliance, the Michigan Council for Women in Technology, the Michigan chapter of the ASA, and is a past president of the Michigan chapter of the National Technical Services Association.

See Bio

Jehan Ghafari

Branch Manager, Texas

With over 20 years of experience in change management consulting, recruiting, and account management, Jehan has a passion for understanding people’s professional goals and working collaboratively to develop strategies that position them for success. As Branch Manager of G-TECH’s Houston office, Jehan dedicates her energy to growing our Texas operations, managing client relationships, and supporting our team members based in the region.

Jehan holds a Bachelor of Business Administration from the University of Michigan.