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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior NSSS Integration Engineer - **Company:** ALVA ENERGY INC. - **Location:** Cambridge, MA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Systems Integration - **Published:** June 29, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=0194be5b64690727 ## About the Role * Bachelor's degree in Mechanical Engineering, Nuclear Engineering, or related engineering discipline. * 10+ years of experience in nuclear power plant operations, systems engineering, design engineering, or plant modification programs. * Strong background in 4-loop PWR operation and systems engineering, ideally with direct experience supporting plant transients, operating procedures, and system response. * Demonstrated experience working across NSSS and balance-of-plant interfaces in an operating plant or major plant modification environment. * Familiarity with safety analysis and the engineering implications of design-basis and transient performance requirements. * Ability to work effectively across process engineering, I&C, safety analysis, EPC, utility, and vendor organizations. * Breadth of experience in mechanical design, project coordination, and cross-functional technical leadership. * Strong written and verbal communication skills, including the ability to lead technical discussions and drive alignment across diverse stakeholders. * Willingness to travel periodically to utility, partner, and supplier sites as needed. Preferred Qualifications * Prior licensed operator, SRO, or equivalent plant operations background at a 4-loop PWR. * Experience supporting uprates, major plant modifications, or first-of-a-kind integration efforts. * Familiarity with startup test planning, transient analysis inputs, or control system integration in nuclear plant environments. ## Description 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., * 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 requirements, transient performance expectations, and NSSS design constraints. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai) - [Valven Atlas: Engineering Intelligence That Delivers](https://www.wearedevelopers.com/videos/1660-valven-atlas-engineering-intelligence-that-delivers) - [Automated Driving - Why is it so hard to introduce](https://www.wearedevelopers.com/videos/628-automated-driving-why-is-it-so-hard-to-introduce) - [Physical AI: The Era of Intelligent Machines](https://www.wearedevelopers.com/videos/100141-physical-ai-the-era-of-intelligent-machines) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering)