Engineer, Operational Technology Systems

Clinton, ILFull-time$134k–$149kPosted Jul 24, 2026

Overview

Who We Are

As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things. Join us in meeting the country's energy needs today and tomorrow.

Total Rewards

Constellation offers an extensive selection of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and a wide-range of benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, eligible employees are offered a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including robust wellbeing programs; disability and life insurance benefits; paid time off for vacation, holidays, and sick days; and much more.

Expected salary range of $134,100 to $149,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k).

Responsibilities

Primary Purpose of Position

As a member of the Constellation Operational Technology Solutions (OTS) team, the Senior OT Systems Engineer B performs advanced technical problem solving, solution design, and issue resolution while acting as a resource and subject matter expert for plant operational technology systems such as plant process computers, data historians and core monitoring systems in support of nuclear plant operations. Responsible for technical decisions. Possesses excellent knowledge in functional discipline and its practical application and has detailed knowledge of applicable industry codes and regulations.

Primary Duties and Accountabilities

Provide technical expertise and consultation through direct involvement and as a subject matter expert when consulted to identify and resolve equipment and system problems
Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department.
Establish the design, configuration, deployment, and operation of Operational Technology (OT) systems and applications and assist with the migration of existing applications to new platforms.
Consult with leadership, project teams, support teams and end users to support availability and perform feasibility analysis for potential changes related to Operational Technology systems. Provide technical expertise for maintaining performance and reliability of applicable performance indicators and business plan goals
Coordinate the development of future technology road maps, resource requirements, migration strategies, and project schedules. Participate in refresh or redesign required during upgrades in accordance with Long Term Asset Management (LTAM) strategies. Create documentation to install, replace, and upgrade components and systems. Comprehend technologies and service offerings within the industry. Create requirement documents, statement of work (SOW), logical & physical architecture diagrams, and implementation plans to integrate into nuclear plant environments.
Provide feedback to leadership and peers for risks identified during business impact analysis, site risk assessments and disaster recovery planning.
Maintain relevancy and knowledge in current and evolving emerging application & hosting technologies. Maintain relevancy and knowledge in current and emerging technologies, industry trends within all OT disciplines or functions
Position has senior level expertise and design competency in platform or application area of expertise, and the tools/systems associated with these functions.
Performs OT systems engineering tasks independently and actively imparts expert knowledge to others. Higher level of accountability than an OT Sr. Systems Engineer A
Prepares and approves OT system design and configuration products and development of software solutions in accordance with approved processes and design requirements.
Supports installation and testing of OT systems and solutions and ensures physical and functional characteristics are accurately reflected in the plant documents Development of troubleshooting plans in support of plant operations. Monitor, assess and improve the performance and reliability of OT systems and components.
All other job assignments and/or duties pursuant to company policy or as directed by management to include but not limited to: (Emergency Response duties and/or coverage, Department duty coverage and/or call out, and positions outside of department in support of outage activities etc.)

Minimum Qualifications

Bachelor's degree in a technical discipline with 7 years of related experience in a technology field (OT, information technology (IT), Engineering, or related industry experience) OR
Associate's degree in Engineering or related technical field with 8 years of related experience
Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties