Leadership

Iram Arras is Senior Vice President of Engineering and Product Management at Lighthouse. In this role, he leads product strategy and execution for the company’s legal technology and compliance solutions.  Iram brings a practical, customer-driven approach to product leadership, translating market needs into scalable, customer-focused solutions that address complex litigation and regulatory challenges.With deep expertise in security, eDiscovery, and compliance, Iram has built his career at the intersection of technology, risk, and regulation.

Prior to joining Lighthouse, Iram spent more than five years at Microsoft in the Security and Compliance organization. As a Principal PM Manager, he led globally distributed teams responsible for launching and scaling Microsoft 365 compliance and eDiscovery capabilities, and served as a thought leader through industry blogs and events. Earlier in his career, Iram held senior product and leadership roles at iCONECT, Control Risks North America, and LexisNexis. At LexisNexis, he worked closely with AmLaw 250 firms on legal technology solutions spanning document management, cost recovery, and eDiscovery, and contributed to the design of flagship products including TotalSearch and Hosted Concordance.

Sarah has been in the eDiscovery industry since 2006 and joined Lighthouse in 2016 as a leader in the Client Services organization. Recently appointed Senior Vice President of Client Experience, she oversees the Client Services, Client Onboarding, Digital Forensics and Self-Service Support organizations. In this role, Sarah is responsible for managing client satisfaction and ensuring excellence at every stage of the eDiscovery process. She leads the company’s elite team of Project Managers and Digital Forensics experts, directing service delivery and ensuring successful customer outcomes. Her track record includes successfully supervising hundreds of large-scale eDiscovery projects, consistently exceeding client expectations and retention targets.

Throughout her career, Sarah has demonstrated remarkable skill in scaling high-performing teams, streamlining operations, and designing innovative support models that drive measurable value. She is committed to fostering collaborative cultures, developing talent, and relentlessly pursuing operational excellence to help clients achieve their strategic objectives.

Sarah’s background includes roles at Cravath, Swaine & Moore LLP, and Sullivan & Cromwell LLP, prior to joining the company. She holds a Bachelor of Arts from New York University. She recently relocated from Seattle back to the east coast where she spends her free time with her two adorable nephews and enjoys hiking, swimming, and all things outdoors.

David joined Lighthouse in 2017 as the Chief Financial Officer and became the Chief Operating Officer in 2019. He is responsible for service delivery and infrastructure including client service, expert solutions, and eDiscovery operations as well as datacenter, security, and enterprise project management.  

Prior to Lighthouse, he was the Chief Financial Officer and Chief Administration Officer at Blue Nile, a publicly traded ecommerce company, from 2011 to 2017. In those roles, his responsibilities included all aspects of finance, accounting, and treasury as well as supply chain management, fulfillment center operations, physical security, legal, and pricing. From 2008 to 2011, he was Chief Financial Officer at Infospace, a publicly traded internet content and technology company.

David earned a Bachelor of Arts and Master of Arts in Economics and Finance from Brandeis University. He lives in Seattle with his wife, young son, and badly behaved dog. He enjoys biking, watersports, and is working on bettering his tennis game and guitar play.

Amy is a Senior Vice President at Lighthouse, where she leads the firm’s Information Governance, Review Intelligence, and Managed Review practices. In this role, she oversees strategy, operations, and go-to-market execution, aligning people, process, and technology to deliver scalable, high-quality outcomes for clients. Her work focuses on both applying AI-driven approaches through LighthouseIQ to transform discovery and review workflows and helping organizations govern and operationalize AI within their broader data environments. 

Amy’s Information Governance practice helps organizations take control of complex data environments by aligning data management, compliance, and risk strategies across the enterprise. She works with clients to design and implement governance frameworks that reduce data risk, improve defensibility, and create the conditions necessary for responsible and effective AI adoption. 

In parallel, her teams deliver AI-enabled review workflows that integrate advanced analytics and data intelligence into managed review and investigation processes. These approaches allow legal teams to surface key facts, identify critical documents, and develop case strategy earlier by analyzing large, complex datasets in a way that is both efficient and defensible. By combining AI with experienced review teams, she helps clients reduce manual effort and focus resources on higher-value legal analysis. 

Amy partners closely with Fortune 500 legal departments and AmLaw 100 law firms to design and implement solutions that address increasingly complex data environments. She is known for bringing a practical, client-centered perspective to legal technology, helping organizations simplify workflows and derive greater value from their data through the combined application of governance, AI, and review intelligence. 

Prior to joining Lighthouse, Amy held senior executive roles spanning legal services, technology, and financial services. She has served as President of an integrated legal services provider, where she led global operations and oversaw eDiscovery and contract lifecycle management businesses, and as Chief Revenue Officer of a technology company delivering software solutions to large financial institutions.  

Her experience includes building and scaling legal operations functions, establishing contract negotiation and outside counsel management programs, and implementing enterprise technology solutions to support complex legal and compliance workflows. She has also led client experience and revenue growth initiatives, managed significant portfolios of strategic client relationships, and partnered with executive leadership teams to improve operational performance and drive profitability. 

Earlier in her career, Amy served as in-house counsel within a global financial institution, where she managed litigation and regulatory matters across multiple jurisdictions and led cross-border discovery and investigation efforts.  

A recognized speaker, Amy frequently presents on topics including AI in discovery, legal technology, client experience, and the convergence of information governance, data intelligence, and review.  

Amy holds a J.D. with honors from the University of Texas School of Law and a B.A. in Spanish and Latin American Studies from the University of Texas, where she was elected to Phi Beta Kappa. She is admitted to practice in Texas and New York. 

Bill joined Lighthouse in 2018 as Vice President of Sales working with Fortune 500 corporations and AmLaw 100 law firms throughout the United States, Europe, and Asia Pacific to help clients improve their strategies for handling complex discovery matters while creating greater cost and control efficiencies throughout the discovery process.  

Appointed Chief Revenue Officer in 2024, he now oversees Lighthouse’s global revenue strategy and leads the Sales, Client Success, and Sales Enablement organizations. With the introduction of analytics and artificial intelligence into the legal industry, Bill has been an industry leader through this unprecedented time, helping guide clients forward with innovative solutions.

Prior to his start in the eDiscovery industry nearly 20 years ago, Bill was a litigator for five years, as well as a guest trial advocacy instructor at Seton Hall University where he taught students how to leverage technology in practice.

Bill is also a frequent presenter and author on a variety of topics including How to Develop an Electronic Discovery Action Plan; The FRCP Amendments: Dealing with Electronic Discovery; Emerging Case Law in Electronic Discovery; and Leveraging Technology to Reduce Discovery Costs.

Bill earned his J.D. from Seton Hall University School of Law.

As Chief Executive Officer at Lighthouse, Ron Markezich brings more than 30 years of experience in building technology solutions and serving the largest enterprises in the world. As Lighthouse CEO, Ron’s focus is on providing exceptional service to our clients, building innovative eDiscovery, compliance, and governance solutions, as well as developing a strong and diverse team.

Ron joins Lighthouse from Microsoft where he spent the last 24 years in leadership roles across nearly every functional area. His mission was to grow Microsoft’s commercial cloud services which he did as the Office 365 incubation leader, which led to leadership roles responsible for U.S. Enterprise Sales, Microsoft 365 Marketing, and Global Pricing & Licensing. While Ron was Microsoft’s Chief Information Officer, he started Microsoft’s commercial cloud services in 2007. During this time, Ron’s incubation team sold, migrated, and supported Microsoft’s first cloud customers, which included many of the top brands in the world.

Ron started his career at Accenture, then Andersen Consulting, where he worked for almost 10 years serving clients across the U.S. and helping build Accenture’s offshore development office in Manila, Philippines. He began his Accenture career as a software developer and advanced to a leadership position on some of the biggest, most complex consulting projects and programs conducted by Accenture at the time.

Ron received a bachelor’s degree in Management Information Systems at the University of Notre Dame, where he was also a cross country All-American and track & field school record holder in the 10,000M. He and his wife, Debbie, have four children and reside in the Seattle area.

Sue joined Lighthouse in November 2022 as Senior Director People & Culture as a strategic and transformative human resource leader with demonstrated success creating and developing strong human resource competencies in multiple global sites. The depth of her 25 years of experience spans multiple industries (manufacturing, PE, etc.) and companies such as Protective Industrial Products, Tempur Sealy International, and Time Warner Cable designing, implementing, managing, and administering HR solutions, in addition to working tirelessly to enrich company culture.  

She holds a master’s degree in labor policy studies from SUNY Empire State College, where she cultivated a passion for creating workplace environments that thrive on open communication, transparency, constructive feedback, and career development opportunities. Outside of work, Sue actively participates in several charitable organizations and served for more than 10 years on the Executive Board of Directors for the Alzheimer’s Association of Northeastern New York.

Darryl Tober is a seasoned technology executive with more than 28 years of experience leading enterprise software engineering, cloud infrastructure, security, and operations organizations. He brings a strong track record of building high‑performing teams, modernizing platforms, and delivering reliable, secure, and scalable technology capabilities that directly enable business growth and customer trust.

Darryl joined Lighthouse on October 10, 2022, as an Executive Director, and has served as Chief Information Officer for the past year. In his role as CIO, he leads Lighthouse’s Security, Infrastructure, Operations, Cloud Engineering, and Supportability teams. He is responsible for the company’s overall foundational technology strategy, operational excellence, and security posture, with a focus on enabling scale, improving reliability, and aligning technology execution with business priorities.

Prior to Lighthouse, Darryl held senior leadership roles at global technology companies including Salesforce (Tableau) and Microsoft, where he led mission‑critical SaaS, cloud, and data platforms used by millions of customers worldwide. His experience spans cloud engineering, site reliability engineering (SRE), DevOps, observability platforms, identity and access management, and large‑scale release and deployment operations.

At Salesforce (Tableau), Darryl served as Senior Director of Systems Engineering, leading teams responsible for critical cloud infrastructure, configuration and identity platforms, observability services, and Tableau Public. He drove major modernization initiatives that improved platform security, reduced operational risk, increased reliability, and lowered long‑term maintenance costs through standardization and automation.

Earlier at Microsoft, Darryl was a Principal Software Engineering Manager for the Power BI service, where he built and led centralized live‑site operations, deployment automation, and reliability engineering teams. His leadership helped improve service stability, incident response, and operational maturity while establishing best practices across development and operations. Additional roles at Microsoft and Tableau included senior leadership positions in configuration management systems, release management, and program management for enterprise data and analytics platforms.

Darryl is known for his customer‑first mindset, operational rigor, and ability to bridge business strategy with technical execution. He is a strong advocate for agile methodologies, continuous improvement, and cross‑functional collaboration, and he is deeply committed to developing leaders and building accountable, high‑trust teams.

He holds degrees in Business Management and Computer Science, multiple Agile certifications, and has completed extensive leadership organizational effectiveness training. Outside of work, Darryl has a long history of community involvement through youth sports coaching soccer, baseball, and mentoring.

As Chief Marketing Officer of Lighthouse, Stacy serves as an innovative marketer leading with a customer-obsessed, insights-driven, and outcome-based approach to branding, communications, thought leadership, demand generation, and product and solutions marketing. She’s a versatile leader known for developing and inspiring high performing teams. Stacy has a long history of growing brands and building strong workplace cultures, and believes great brands are built from the inside out, energized by a culture that promotes growth, impact and belonging.

Prior to this role, Stacy was Vice President of Marketing at Lighthouse from August 2017 to January 2023. Before Lighthouse, she was the Vice President of Investor Relations and Corporate Communications at Blucora NASDAQ: BCOR (formerly Infospace), where she provided overall guidance for the company’s internal and external communications, brand, and corporate giving functions. While there, Stacy implemented plans to ensure a positive corporate image and culture during multiple phases of turnaround, strategic repositioning, and renewal. She also led numerous financial communications initiatives, including mergers, acquisitions, divestitures, and public offerings.

Before joining Blucora in 2005, Stacy was an Investment Relations Analyst at Cascade Investment, a private investment and holding company for William H. Gates III and The Bill and Melinda Gates Foundation. Previous to her role at Cascade Investment, she served in various investor relations roles at 360networks Inc. and XO Communications. She began her career at Telecommunications Inc. (now Comcast Corp) in marketing.

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