Meet Your Team
Account Leadership
Leigh Seaman
Client Executive Partner
Leigh leads the multi-disciplined account team at Atos, overseeing service delivery and the relationship with the NDA Group. Originally an electronic engineer through the GEC sponsorship scheme, Leigh has built his career around complex deals and account management. For the past 2-3 years, Leigh has been instrumental in transforming NDA Group's IT services, especially at Sellafield and NWS, from a monolithic model to a more agile, disaggregated approach. He is proud to work with a team that has 12 years of direct support for the NDA and extensive ICT experience in the civil nuclear sector. Leigh values his role in supporting the NDA mission and making a positive impact on the North West and Cumbrian communities.
John Walters
Client Delivery Manager
John is an engaging and multi-skilled leader with over 35 years’ experience in operational and leadership roles. He has consistently demonstrated his ability to apply a wide range of transferable skills throughout his career. John has successfully transitioned to a role in the UK&I Human Resources leadership team, from Service Management and IT operations, and back again to a client-focused Service, Transition and Exit role. He is a cross-functional operational leader, known for his determination to develop services that enhance both client and employee experiences. His quick learning and adaptability allow him to balance tactical, strategic and operational needs effectively. John excels at tackling challenges, building strong client relationships and leading by example.
Daniel Dobbs
Commercial Director
Daniel is a Commercial Director focused on creating win-win outcomes, with 8 years of commercial experience working with both public and private sector clients. He is currently working alongside Sellafield and Nuclear Waste Services to ensure that contracts are in place that deliver both value for money and are fit for purpose, providing excellent services to the user bases.
Client Management
Phil Lazell
Account Director
Phil is a solution-focused Senior Account Director with over 30 years’ in-depth experience across public, private and international sectors. For the past 15 years, he has worked closely with major UK Government departments, including 4 years with the NDA. Phil is highly client-focused, building strong business relationships through his deep sector knowledge, empathy and a willingness to provide constructive challenge.
Calum McKinlay
Account Manager
Calum is responsible for bringing innovation and portfolio items to the NDA, while also maintaining strong relationships with the client. He works collaboratively with the NDA to develop work packages and make sure that projects are delivered to the highest quality standards.
Maria Molloy
Demand Manager
Maria is a Demand Manager in the Bid Desk, with nearly 10 years of experience on the NDA Account and 13 years at Atos. She oversees the Demand Management process, handling Proposal and Rough Order Magnitude requests. Maria is dedicated to producing high-quality proposals, ensuring they meet customer SLAs and Atos’ internal goals. She also supports the Account Team and keeps system data accurate for reporting.
Operations
Stephanie Ross
Service Delivery Manager
Stephanie is a Service Delivery Manager with over 40 years of experience in the IT industry. She is responsible for managing the overall delivery of IT services to clients and internal stakeholders, ensuring that service quality, customer satisfaction and client relationships consistently exceed expectations. Stephanie is dedicated to driving efficiencies, implementing service improvements and managing risks. She adheres to best practices in Incident, Problem, Request and Change management, making sure all processes are handled with the highest standards.
Phil Davis
Service Delivery Manager
Phil is a Service Delivery Manager with 40 years of experience in the IT industry. For the past decade, he has been dedicated to the NDA account, developing a deep understanding of the customer’s business needs. Phil leads a talented team of 11 analysts who provide support and development for a wide range of customer applications. He works closely with the Sellafield SDM, and they have built a strong, collaborative working relationship.
Karen Plumb
PMO Manager
Karen has been working for Atos for 25 years, and for the past 9 years, she has been a key part of the Account team. As a member of a 3-person PMO team, Karen handles all forms of invoicing for both services and projects, working closely with customers, suppliers and internal staff. Her peers speak highly of her dedication and work ethic, describing Karen as diligent, hardworking and one of the best PMO Managers they’ve ever encountered.
Ollie Lewington
Application Specialist
Ollie has been supporting the NDA Account for nearly four years as a Software Development Apprentice. He works within the Applications Management Team, where he plays a key role in enhancing a variety of customer-facing applications. In his day-to-day role, Ollie focuses on developing innovative support tools that streamline application management, helping the team operate more efficiently. He also contributes to the development and maintenance of various web and desktop application upgrades, consistently delivering high-quality solutions that meet customer needs.
Digital, Technology and Sustainability
Jake Huddleston
Social Value Manager
As the Social Value Lead, Jake is responsible for managing the community-facing outreach programme. He understands how important the community is, especially since Sellafield is the largest employer in the area, enabling people to earn sustainable incomes and sustaining the local economy. Jake also makes sure that Atos gives back by organising digital outreach activities, hiring talented people from the local community and supporting sustainability projects.
Neil Osmond
Chief Technology Officer
Neil is an Enterprise Architect with 40 years’ experience in the IT industry. Having worked in both pre-sales and post-sales roles, he understands the ins and outs of contracts, commercials and technical solutions. Neil is a technologist at heart and loves staying current with the latest advancements, especially in Digital and Cloud technologies. Over the years, he’s worked across many different sectors, with regular communication at CxOs, Enterprise Architects and IT Senior Management levels.