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Senior Staff Engineer, Mechanical Analytical

Constellation

Pottstown, PAJob$151–168K/yrSeen 2w agoSeen in employer's feed 3 days ago

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At a glance

Compensation
$151–168K/yr
Location
Pottstown, PA
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Bachelor's degree, required

Job overview

The Senior Staff Engineer, Mechanical Analytical performs advanced engineering problem solving in support of nuclear plant operations and makes technical decisions. The role provides technical expertise for engineering activities related to plant safety, reliability, maintainability, and availability, and supports design modifications, testing, and problem solving. It also performs independent research and analysis and may coordinate supervisory activities for engineering personnel.

Skills & qualifications

RequiredNice to have

Skills

Technical Leadership, requiredTeamwork, requiredPipe Stress, nice to haveThermal Hydraulics, nice to haveRELAP5, nice to haveSNAP, nice to haveGOTHIC, nice to haveASME Codes, nice to have

Qualifications

Bachelor's in Engineering, required10 Years Engineering Experience, requiredProfessional Engineer Registration, nice to haveBachelor's in Mechanical Engineering, nice to haveMinimum Access Requirements, requiredFavorable Medical Examination, required

Benefits

401(k) Match
Medical Insurance
Dental Insurance
Vision Insurance
Paid Time Off

Full job description

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 $151,200 to $168,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k).

This role can sit at any of the following sites:

Cantera, Warrenville, IL

Kennett Square, Kennett Square, PA

Braidwood, Braceville, IL

Byron, Byron, IL

Clinton, Clinton, IL

Dresden, Morris, IL

LaSalle, Marseilles, IL

Quad Cities, Cordova, IL

Limerick, Pottstown, PA

Nine Mile Point, Oswego, NY

Primary Purpose of Position

Performs advanced engineering problem solving in support of nuclear plant operations. Responsible for technical decisions. Possesses superior knowledge in functional discipline and its practical application and has excellent knowledge of applicable industry codes and regulations. Functions with recognized industry-level of expertise in a technical area.

Primary Duties and Accountabilities

  • Perform advanced nuclear engineering and technical tasks in support of nuclear plant operations.

  • Perform independent research, reviews, studies and analyses in support of technical projects.

  • Provides in-depth technical expertise to develop, manage and implement engineering activities related to plant safety, reliability, maintainability, and availability ensuring compliance to customer's needs, regulatory requirements, and corporate policies.

  • Accountable for the accuracy, completeness, and timeliness of work ensuring proper configuration management and assuring that standard design criteria, practices and codes are used in preparation of plans and specifications.

  • Provide technical expertise and consultation through direct involvement to identify and resolve equipment and system problems.

  • Provides initial or complete task management of engineering issues.

  • Recommend equipment, new concepts and techniques to improve performance, simplify construction, reduce costs, correct design or material flaws, or comply with changes in codes or regulations.

  • Supports plant design modifications, testing and problem solving.

  • Assure all engineering products prepared or overseen are in accordance with applicable safety analyses, industry codes, and all regulatory requirements.

  • Develop, implement and coordinate functional supervisory activities including, but not limited to, personnel, budgetary accountabilities and planning goals with respect to engineering personnel.

  • 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.

Minimum Qualifications

  • Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) with 10 years of engineering experience

  • Demonstrated technical leadership experience (e.g. Duty team lead, inspection lead), teamwork and leadership attributes

  • Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties

Preferred Qualifications

  • Professional Engineer Registration

  • Bachelor's Degree in Mechanical Engineering

  • Pipe Stress experience

  • Thermal hydraulics experience

  • Experience with RELAP5, SNAP, and/or GOTHIC

  • ASME codes

Constellation is proud to be an equal opportunity employer and employees or applicants will receive consideration for employment without regard to: age, color, disability, gender, national origin, race, religion, sexual orientation, gender identity, protected veteran status, or any other classification protected by federal, state, or local law.

How this job compares

Set against the 7,635 open Mechanical Engineer jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$151–168K/yr
  • Pennsylvania median$93–143K/yr137 salary ranges
  • US median$107–160K/yr4,627 salary ranges

This range's midpoint, $160K, is 30% above the Pennsylvania median midpoint ($123K) — in the top quarter of Mechanical Engineer salary ranges in Pennsylvania.

Openings
Olive Jobs lists 305 open Mechanical Engineer jobs in Pennsylvania and 7,635 across the US. 2% of them nationwide are listed as remote or flexible.
Hiring the most in Pennsylvania
Experience
This posting asks for at least 10 years of experience — more than three in four Mechanical Engineer postings that state a minimum ask for (median 5 years, across 6,365 postings).
Education
This posting asks for a bachelor's degree; 5,220 of the 7,635 open Mechanical Engineer jobs (68%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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