About Us

Revolutionary AI-Driven Analysis

Spectrum Effect was founded by the wireless industry veterans behind Eden Rock Communications (SON leader acquired by a tier-1 OEM) with technologies incubated in advanced research projects with the United States Department of Defense and the Office of Naval Research. Spectrum Effect has pioneered highly innovative machine learning based analytics of mobile network data for RF interference mitigation.

With R&D in Kirkland, Washington USA and Monterrey Mexico, our fast-paced culture is blend of high innovation, for tackling the mobile industry’s most difficult challenges, a focus on execution, applying best practices and leveraging the latest advances for our software development, and an extreme passion for delivering significant value to our customers while transforming the industry.

Our revolutionary patent-protected software solution, Spectrum-NET, enables mobile operators to rapidly resolve interference events, gain network capacity, improve network KPIs, improve subscriber QoE, surgically deploy field assets, save OPEX and restore spectrum value.

Meet Our Team

The Spectrum Effect leadership team has deep experience building AI-based wireless solutions for the leading operators around the world.

Charles Immendorf

CEO

Charles Immendorf is Co-Founder and CEO of Spectrum Effect, the industry leader in the space of automated AI-driven analysis of RF interference. Charles is an entrepreneur and veteran of the wireless industry with an established track record of creating and commercializing high-value innovations. Prior to Spectrum Effect, Charles was the Co-Founder and CEO of Eden Rock Communications which created the industry’s top Self Organizing Network (SON) software solution and was acquired by Nokia. He then served as the Head of Self Organizing Networks at Nokia, helping establish Nokia as the market leader with the most SON deployments by mobile operators across the globe. Charles previously served as the R&D leader for mid-sized RAN OEMs as well as a Director of Software Development for AT&T in the area of OFDM-based wireless systems. He began his career working in software development for trunked radio networks with Motorola. Charles has been granted 21 US patents and holds a BS in Electrical Engineering with highest honors from Rutgers University.

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Eamonn Gormley

CTO

Eamonn Gormley is the CTO at Spectrum Effect and leads the algorithm design and architecture teams for Spectrum-NET. He has over 25 years of leadership and expertise in the development and deployment of wireless communications systems and tools, with a strong focus on Data Analytics, Machine Learning, Self Organizing Networks (SON), wireless algorithm design and software architecture and development. Eamonn previously held the position of Head of SON Architecture at Nokia with responsibilities for the industry leading SON product, Eden-NET. Prior it its acquisition by Nokia, Eamonn was CTO at Eden Rock Communications, where he led the design and development of Eden-NET. Eamonn held the position of Director of Technology at SR Telecom, and the position of DSP Software Manager for AT&T’s OFDM broadband products program. He began his career with Analog Devices in Limerick, Ireland. Eamonn has been granted 77 US patents and he received a B.Eng. degree in Electrical Engineering from the University of Limerick, Ireland.

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Jungnam “Jake” Yun

Chief Scientist

Jungnam “Jake” Yun is the Chief Scientist at Spectrum Effect and leads advanced research and is the inventor of key disruptive innovations. Jake led the research and system design of the Bayesian Inference, Ducting Service and Deep Machine Learning capabilities used within Spectrum-NET for RF interference classification, aggregation and location. Jake presently is leading the system design for the optimization of 3GPP Release 16 RF interference related features as well as research into 6G. Prior to joining Spectrum Effect, he was a principal systems engineer in Nokia’s SON division and with Eden Rock Communications (acquired by Nokia), where he conducted research in the spectrum sharing space and designed critical SON modules for EdenNet. Prior to Eden Rock, he was with JUNI, where he designed MAC/SON algorithms for Mobile WiMAX and LTE small cells, and with POSDATA, where he designed PHY/MAC algorithms for Mobile WiMAX systems and actively contributed to standard bodies, such as WiMAX Forum and IEEE 802.16e. He has been granted 23 US patents and has authored several journal and conference papers. He received B.S. and M.S. degrees in 1995 and 1997 from KAIST and Ph.D. degree in 2004 from Pennsylvania State University, all in electrical engineering.

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Cristina Guzman

Director of Software Development

As the Head of Development since 2016, Cristina is responsible for the software development, processes, and tools for Spectrum Effect’s solutions, managing the software team, and driving the software release cycle. Before joining Spectrum Effect, Cristina served as the Lead Product Quality Engineer at Palantir Technologies and technical positions in various locations across the globe with Bayer HealthCare, Space Data Corp, and projects representing AKATOR Consulting and Telvista for the International Business Leadership Program. Cristina earned a Masters of Engineering in Computer Science and BS in Electrical and Computer Engineering from Cornell University.

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Jorge Webb

VP Engineering Services and Customer Support

Jorge has 20+ years of experience supporting and collaborating with mobile operators across the globe with a focus on emerging technologies. Jorge serves as the VP of Engineering Services at Spectrum Effect, where he leads teams of expert RF Systems Analysts, Global Technical Support & Helpdesk Specialists, and IT & Deployment Administrators. Prior Spectrum Effect, Jorge served as the VP of Engineering Services at Eden Rock Communications and as the Head of Engineering Services for the SON division at Nokia. Jorge previously served as Director of Customer Solutions for SR Telecom and Systems Engineer at Lucent Technologies with focus on deployments of broadband wireless networks. He holds a B.S. in Electronic and Communications Engineering from the Technology Institute of Advanced Studies (ITESM) in Monterrey, Mexico.

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Jina Choi

Director of Product Management

Jina is responsible for product management and leads the project management team at Spectrum Effect. Jina previously worked for Fluke, a Fortive operating company, where she drove product direction and strategy for the global reliability services business, while supporting the integration of DB Pruftechnik. She also held other commercial, financial, and operational roles at Fluke, McMaster-Carr, and JP Morgan. Jina received an MBA from Harvard Business School and a BA in Economics from the University of Chicago.

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Board of Directors

Scot Jarvis

Scot Jarvis

Chairman

Scot Jarvis co-founded Cedar Grove Partners, a private equity firm with a focus on wireless communications, in 1997 after a highly successful career in management and investment roles in the wireless communications industry. A graduate of the University of Washington, Scot founded and served as the first President of Nextlink Communications, served as a Regional President of Nextel, and served as a Senior Executive with McCaw Cellular (now AT&T Wireless). He has served or currently serves on the boards of public and private companies, including Airspan, Conner Homes Group, Kratos Defense and Security Solutions (KTOS), MobiTV, RootMetrics, Slingshot Sports, Toba Inlet PCS, and Vitesse Semiconductor (VTSS). Scot also serves as a Venture Partner for Oak Investment Partners focusing in the wireless communications market.

Bruce Brda

Bruce Brda

Board Member

Bruce Brda is the retired Executive Vice President, Products & Solutions, for Motorola Solutions where he was responsible for development of the company’s mission-critical communications portfolio. In this capacity, Bruce served on the company’s executive committee, ensured strong alignment between the company’s vision, strategy and portfolio execution and contributed to more than a 200% increase in shareholder value. From 2014 through early 2019, Bruce led the company’s product management, engineering, procurement, corporate strategy organization, CTO and venture capital organizations. Brda joined Motorola in 1989 where he held a variety of leadership roles in sales, engineering and business development across several Motorola business units. He managed the go-to-market function for key regions in Motorola’s Mobile Devices business and also led the global sales organization. In 2009, he led Motorola’s Networks business and guided its sale to Nokia Siemens Networks. Brda was then tapped to lead Motorola’s newly created Solutions & Services business. Prior to joining Motorola, he worked as director of engineering for Dukane Corporation and as a design engineer for Northrop Corporation. He earned a bachelor’s degree from Southern Illinois University and a master’s degree from Illinois Institute of Technology. He previously served on the Board of Eden Rock Communications prior to its acquisition by Nokia.

Gary Sledge

Gary Sledge

Board Member

Gary is the President of Kellett Investment Corp where he manages a large portfolio of diverse investments including real estate, investments in private companies and hedge funds. His 30+ years of financial and operations experience includes serving as Chief Financial Officer of Impac Hotel Group, one of the largest hotel companies in the US, and Technology Ventures, an incubator of several early stage technology companies. Before this, Gary held various leadership roles with The Ritz-Carlton Hotel Company and Johnstown American Companies. Gary holds a BBA Business Administration with a Major in Accounting from Georgia State University.

John Saw

John Saw

Board Member

John Saw, Ph.D., is the executive vice president of advanced and emerging technologies at T-Mobile, where he and his team of brilliant technologists are constantly looking for new and innovative ways to disrupt wireless and bring a little joy to customers’ lives.

John was previously the chief technology officer at Sprint, where he transformed its network performance and oversaw the company’s 5G rollout. John was also the chief technology officer at Clearwire before the company was acquired by Sprint in 2013. Long recognized as a pioneer in the 2.5 GHz band, he’s led the development of the 2.5 GHz band into one of the most valuable mid-band spectrums in the U.S. and one of the largest ecosystems in the world.

Joseph P. Landy

Joseph P. Landy

Board Member

Joseph P. Landy, recently retired Partner and Co-Chief Executive Officer of Warburg Pincus, engaged in all aspects of private equity investing from 1985 until 2020. During his tenure, Mr. Landy co-led the firm’s Executive Management Group, formulated strategy, provided oversight of investment decisions and grew the firm’s private equity assets under management to $56 billion. Mr. Landy’s principal areas of investment focus have been information technology, Internet applications and infrastructure, communications applications and structured investments. Mr. Landy is on the board of trustees of New York University, serving as Chair of the Investment Committee. He is also a board member of Fountain House, the National Park Foundation and several privately held companies. Mr. Landy has previously served as a board member of CrowdStrike, Neustar Inc., Covad Communications, Avaya Holdings Corp. and Bausch & Lomb Inc. Mr. Landy holds a B.S. degree in Economics from The Wharton School at the University of Pennsylvania and an M.B.A. from The Leonard N. Stern School of Business at New York University.

C. James Judson

In Memory

C. James Judson

Chairman and Co-Founder
1944 – 2018

Jim was a retired senior partner at a prominent Seattle-based law firm and board member and co-founder of Spectrum Effect. Jim was previously Chairman and co-founder of Eden Rock Communications, VP at Eagle River Investments, Founding President at McCaw International/Nextel International and Founding President at McCaw UniCom Shanghai JV. Jim’s extensive experience in the wireless industry led to his development of some of the world’s largest cellular operators. Jim served on the boards of China Unicom, Nextel International, NextLink, Lumera, Port Blakely Tree Farms, Garrett and Ring, Joshua Green Corporation, Welco Lumber, Airbiquity, Sonata Capital, TUPL, Opanga, Seattle Institute for Biomedical and Clinical Research, Aubeta and TSK America. Jim also served on the Boards of Trustees of the Pacific Northwest Ballet Foundation, the Yosemite National Institutes, the Pacific Science Center and the Washington Athletic Club. Jim attended Stanford University, B.A. cum laude 1966, and Stanford Law School, LLB. 1969 and was Executive Editor of the Stanford Law Review.

Spectrum Effect is grateful to Jim for the vision, guidance, and invaluable contributions to our success. Jim was a leader, a mentor, and a good friend. The Spectrum Effect team will honor Jim’s legacy by working diligently to bring his vision to reality.

Advisors

Brad Boston

Advisor

Boston brings more than thirty years of relevant technology industry experience. He is a recognized team builder and leader, known for his business acumen and technological innovation. He has successfully managed organizations well known for harnessing technology for enhanced services, productivity gains and competitive advantage. Brad Boston joined NetNumber as President and Chief Executive Officer in July 2013. He had been a member of the company’s Board of Directors since April 2002. He refocused the company on the transition of the Telecom industry away from hardware appliances to software systems. He retired on Feb 1 2018 after having grown the company from $13 million in revenue and $0 backlog to $35 million in 2017 with a backlog of $15 million. Today, NetNumber applications run in the critical infrastructure of many tier-1 fixed line, mobile and cable carriers worldwide including Verizon, British Telecom, Deutsche Telekom, BICS (Belgacom), Orange, Vodafone, Comcast, Cablevision and others.

He joined Cisco in August 2001 as Chief Information Officer, a position he held through 2006 at which time became Senior Vice President of Cisco Global Government Solutions Group (GGSG) and Corporate Security Programs Organization (CSPO). As CIO, Boston implemented portfolio management disciplines to consolidate the IT application capabilities for the company. As part of this a major effort to consolidate various disjointed databases in throughout the company was also launched in order to improve operational efficiency and customer management. As the head of GGSG, he advised global defense, space and security agencies on business practices and technology solutions to achieve and enhance their mission goals. One of the GGSG accomplishments under Boston was the launching of a commercial router on the Intelsat-14 satellite as part of the IP Routing in Space (IRIS) Joint Capabilities Technology Demonstration (JCTD) for the US Department of Defense. As head of CSPO, he focused on ensuring the integrity, confidentiality and availability of Cisco’s critical information and computing assets. He also consulted with various governments throughout the world on Cyber Security matters. Boston retired from Cisco in the fall of 2012.

Prior to Cisco, Boston was the Executive Vice President of Operations at Corio, an enterprise-focused Internet ASP. He was instrumental in redefining the company’s product offering and business model. Before joining Corio, Boston served as Executive Vice President of product development and delivery and President of Sabre Computer Services at the Sabre Group. He prepared the organization for its spin-out from American Airlines, an historic transaction that created a leading IT firm valued at more than the former parent company. Additionally, he managed the early development, operations and support of Travelocity.com; led the largest system conversion in the airline industry when USAirways converted to Sabre; and architected the development and implementation of the technology plan to modernize the Sabre system infrastructure and applications. Mr. Boston also has held executive positions at American Express, Visa, United Airlines/Covia and at American National Bank and Trust Company of Chicago, where he began his career. He holds a B.S. in Computer Science from University of Illinois, College of Engineering, Champaign-Urbana, Illinois. He is a member of the board of directors and Chairman of the Compensation Committee of Vectrus, a defense services business. He is a member of the board of directors of Koolspan, a Mobile Security company headquartered in Bethesda Maryland He is an advisor to the CEO of Spyrus, INC, a company that provides PKI security solutions to government and commercial companies. He has also served in positions on the board of directors of Travelocity, Mercury Interactive, Active Power, Actividentity, the American Red Cross and aap3 a computer services company in the United Kingdom.

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Joel Hariton

Advisor

Joel Hariton has over 40 years of experience in deploying and operating wireless networks. He has successfully pioneered new network technologies in rapidly growing commercial operations on 6 continents. Most of these entities were start-up businesses established under harsh conditions. Many were the first cellular services in the country where they were launched.

During the 14 years as the lead engineering executive at Millicom International Cellular, Joel played a key role in growing the company from a market value of $14 million to over $3 billion. As Group CTO and Senior Vice President, he contributed to this rapid expansion through efficient planning and oversight of engineering and technical operations. He carefully managed the expansion of the engineering team from under 35 staff to over 1,000 respected individuals, while keeping careful controls on spending and service quality.

An expert on wireless technology, standards, and operations, Mr. Hariton has negotiated and overseen the efficient deployment of over $600 million in infrastructure hardware and services, often breaking ground with new network concepts, such as the first dual band GSM network globally.

After Millicom, Joel was a senior advisor to CG SAT, now Vivendi International, in Paris, and Vice President of Wireless Services for CH2MHill in London. He was also CTO of Reliance WiMAX World and Afrimax, implementing and operating 4G services throughout sub-Sahara Africa.

Mr. Hariton holds a B.A. from Antioch College in Yellow Springs, Ohio, and did post graduate work in Management Information Systems and Data Communications at the University of Minnesota in Minneapolis. Recently, Joel has been involved with Harvard’s Institute for Applied Computational Science (IACS) in perusing his interest of machine learning.

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Sumit Roy

Advisor

(Fellow, IEEE 2007) received the B. Tech. degree from the Indian Institute of Technology (Kanpur) in 1983, and the M. S. and Ph. D. degrees from the University of California (Santa Barbara), all in Electrical & Comp. Engineering in 1985 and 1988 respectively, as well as an M. A. in Statistics and Applied Probability in 1988. His previous academic appointments were at the Moore School of Electrical Engineering, University of Pennsylvania, and at the University of Texas, San Antonio; presently he holds the ECE-CoE Integrated Systems Professorship, Univ. of Washington, Seattle. His research interests and technology expertise spans analysis/design and prototyping of wireless communication systems/networks, with an emphasis on various technologies: 5G wireless LANs (802.11ax), 5G New Radio and emerging 5G/beyond 5G standards for vehicular (terrestrial and airborne) networks, multi-standard inter-networking/coexistence and dynamic spectrum access solutions for spectrum sharing. He was elevated to IEEE Fellow by Communications Society for his “contributions to multi-user communications theory and cross-layer design of wireless networking standards”. He spent 2001-03 on academic leave at Intel Wireless Technology Lab as a Senior Researcher engaged in systems architecture definition and standards development for ultra-wideband systems (Wireless PANs) and next generation high-speed (pre 802.11n) wireless LANs. He served as Science Foundation of Ireland Isaac Walton Fellow during a sabbatical at University College, Dublin (Jan-Jun 2008) and was the recipient of a Royal Acad. Engineering (UK) Distinguished Visiting Fellowship during summer 2011. During 2014-15, he spent a sabbatical year at Microsoft Research, Bangalore, India, as Erskine Fellow at University of Canterbury, New Zealand and as Short Term Visiting Foreign Expert at Shanghai JiaoTung University. He has published over 100 archival journal and 120 conference publications and his research has been consistently funded by various US agencies and industrial organizations leading to 10 awarded US patents. His recent activities for IEEE Communications Society (ComSoc) includes membership of several technical (notably Technical Comm. on Cognitive Networks) and conference program committees (IEEE DySPAN). He has served as Associate Editor for all the major ComSoc publications in his area at various times, including the IEEE Trans. Communications, IEEE J. Sel. Areas of Communications, IEEE Trans. on Wireless Communications, IEEE Trans. Mobile Computing and IEEE Trans. Circuits & Systems-II Express Briefs. He has served two stints as IEEE ComSoc Distinguished Lecturer 2013-2015, 2017-18. He currently serves as an elected Executive Comm. Member for the National Spectrum Consortium (www.nationalspectrumconsortium.org) and contributes to novel 5G spectrum sharing solutions for the Federal government.

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