Developing great software requires teamwork more than individual effort. Our search platform is only as strong as its weakness link.

There are no unimportant jobs at Merlin.

The Merlin Team

The Merlin Team has been working together for decades. Our clients are legal professionals who work under tight, high-stakes deadlines, with the need to get it right every time.

We love a challenge and are accustomed to solving difficult problems. We are not afraid of the long hours that come with the territory. Indeed, it is what gets us up in the morning. 


Meet the senior leadership team at Merlin Search Technologies. 

John Tredennick

Founder and CEO

John Tredennick spent the first 20 years of his professional life as a trial lawyer and partner at a national law firm. He then founded Catalyst Repository Systems, a leading e-discovery and AI software provider where he served as CEO and Chair for the next 20 years. The company was recently sold to a large public technology company.

 Not ready to retire, John formed Merlin Search Technologies, a secure cloud software development company, that helps forward-thinking legal teams meet compliance obligations, review documents and automate complex work processes. 

John is a prolific speaker and writer. Over the past 30 years, he has written eight books and countless articles on legal technology topics, including “TAR for Smart People” (3rd Ed.),  two ABA bestsellers “Winning with Computers” (Vols. One and Two), “How to Prepare For, Take and Use a Deposition at Trial (James Publishing), and several editions of “The Lawyer’s Guide to Spreadsheets.” John has served as a Chair of the ABA’s Law Practice Management Section and Editor in Chief of its flagship magazine. John is currently active with the Sedona Conference as co-drafting team leader for the new Sedona Guidelines on Legal Holds and as a member of the drafting team for the International Legal Hold Primer. 

John’s legal and technology acumen has earned him numerous awards, including being named one of the top six “E-Discovery Trailblazers,” by the American Lawyer, recognized as a legal visionary to the FastCase 50 and named one of the “Top 100 Global Technology Leaders” by London CityTech magazine. John was also recognized as the Ernst & Young Entrepreneur of the Year for Technology in the Rocky Mountain Region and Top Technology Entrepreneur by the Colorado Software and Internet Association. 

Dr. William Webber

Chief Scientist

Dr. William Webber completed his PhD in Measurement in Information Retrieval Evaluation at the University of Melbourne under Professors Alistair Moffat and Justin Zobel, and his post-doctoral research at the E-Discovery Lab of the University of Maryland under Professor Doug Oard. 

With over 30 peer-reviewed scientific publications in the areas of information retrieval, statistical evaluation, and machine learning, he is a world expert in AI and statistical measurement for information retrieval and e-discovery.  He has almost a decade of industrial experience as a consulting data scientist to e-discovery software vendors, service providers, and law firms. 

Prior to his research career, he was an experienced software engineer and developer of research information retrieval systems, culminating in a Masters by Research on architecting and developing high-throughput distributed indexing and retrieval systems for large volumes of textual data.

Lew Visscher

Lew Visscher

Chief Financial Officer

Lewis Visscher has over 30 years of diversified business advisory, management, operational, financial, and accounting experience. Lew most recently served as the CFO at Catalyst Repository Systems, which was acquired by Open Text in early 2019. Prior to Catalyst, Lew was CFO for various early stage technology businesses providing financial leadership through many operational aspects, contract negotiations, and merger and acquisition strategies.

Prior to serving as CFO, Lew was with PricewaterhouseCoopers where he worked with many private and public companies on equity offerings, start-ups, acquisitions, divestitures and multinational, multi-location operations.

Lew is most famously known in the Colorado community for Lew’s List (, a job resource board for finance and accounting professionals. Lew is also involved in Financial Executives International (FEI) in both Colorado and Arizona and served as President of the Colorado chapter in 2015. Lew is also the founder and an active member of the Colorado chapter of the New Canaan Society, a Christian men’s organization. In 2009, Lew was honored as CFO of the Year by the Denver Business Journal.

Development and Engineering

We are a team of 15+ senior developers, QA and engineers

The Merlin Engineering and Development team has grown to over fifteen senior development, QA and devops engineers based in India and the U.S. Many have worked together for a decade or more building industry-leading search, review and compliance platforms.

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