About the role
Alva Energy is scaling nuclear power uprates and related first-of-a-kind deployment projects across the U.S. power fleet. We are hiring a Senior NSSS Integration Engineer to lead integration of nuclear steam supply system
requirements into Alva’s uprate execution programs, with particular focus on 2TGP integration, plant modifications, and coordination across internal and external engineering teams. This role is a senior technical leadership position for an engineer who can bridge plant operations, systems engineering, transient response, and implementation planning. You will work closely with Alva’s process engineering team, I&C engineering, safety analysis team, EPC partner, utility partner, and NSSS vendor to ensure uprate-related system integration is technically sound, operationally practical, and aligned with plant safety and design basis
requirements. Key
Responsibilities: Lead NSSS integration for Alva’s 2TGP and related uprate projects, ensuring NSSS
requirements are correctly translated into system design, controls philosophy, and implementation scope. Work with Alva’s 2TGP process engineering team, EPC partner, I&C manager, and DuoSync developer to define and manage the NSSS-side
requirements needed for integrated plant operation. Develop and define operating strategies and procedures for startup, shutdown, step load changes, ramping, and other transient operating conditions relevant to two turbine plant operation. Serve as the technical bridge between plant operations, process design, controls development, and engineering implementation for NSSS-related system integration. Partner with Alva’s safety analysis team to review safety analysis outputs and determine required plant modifications, design updates, and engineering actions. Support engineering definition and review of NSSS-related plant modifications, including containment, ECCS, auxiliary feedwater, and other systems. Coordinate technical interfaces among the utility partner, EPC partner, internal engineering team, and NSSS vendor to resolve design, operational, and licensing-basis issues. Review design packages, technical deliverables, and modification concepts to ensure consistency with plant operating
