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About Sequel  Sequel, headquartered in Manchester, New Hampshire, is a company developing the next generation of transformative drug-delivery advancements starting with diabetes. Sequel’s approach is to look at diabetes management holistically to advance systems that make living with diabetes simpler and easier for all. Sequel’s flagship product, the twiist Automated Insulin Delivery (AID) System, launched in July 2025 for people with type 1 diabetes providing them with personalized diabetes management.     Job Overview:   The Sr. IT Security Engineer is a hands-on technical leader responsible for executing and continuously improving Sequel’s security operations program. This role plays a key part in protecting the organization’s systems, data, and users by managing day-to-day security operations, responding to risks, and strengthening core security capabilities.  The Manager partners closely with the Senior Manager, Security & Compliance and IT leadership to implement security priorities, support compliance efforts, and drive measurable risk reduction. This role balances deep technical execution with practical input into process improvements and program maturity.  This position does not own helpdesk or end-user provisioning activities and works in close collaboration with IT operations to continuously raise the organization's security posture and deliver measurable, auditable risk reduction.