{"id":1672407,"url":"https://alion.io/job/ameren-mechanical-engineer","title":"Mechanical Engineer","company":{"id":5072,"name":"Ameren","domain":"ameren.com","url":"https://alion.io/company/ameren","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":81,"open_postings":18,"ghost_share":0,"stale_share":0.944,"repost_share":0,"time_to_fill_p50_days":15,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Callaway, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":71100,"max":172200,"currency":"USD","period":"year","gross":null,"usd_annual":172200},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-01-28T00:00:00Z","employer_posted_date":"2026-01-28","last_verified_at":"2026-10-25T08:20:30Z","board_verified":true,"closed_at":null,"days_open":271,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":271},"description":"About the Callaway Energy Center\nThe Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri’s 1.2 million customers.\nOur benefits include:\nMedical coverage on date of hire\n\n100% employer paid cash balance pension plan\n\n401(k) with company match fully vested on date of hire\n\nMinimum of 15 days paid vacation and 12 paid holidays\n\nPaid parental leave and family caregiver leave\n\nVisit our Benefits & Perks Page for more information on benefits provided to regular full-time employees.\nAbout The Position\nThe Engineer provides technical conscience and expertise, equipment ownership, and directly facilitates the safe, reliable, efficient operation of the nuclear power plant. This role supports regulatory compliance, optimization and reliability of equipment, plant changes and modifications, system and equipment performance monitoring, cause analysis and troubleshooting, long-term asset management, and technical assistance to other departments. The Engineer also maintains a thorough knowledge of plant configuration and design, programs and processes, codes and standards, and operating experience applicable to plant operation and the nuclear industry.\nKey responsibilities include:\nManagement and ownership of assigned technical Programs, Systems, Components, and Design.\nEnsure compliance with NRC regulations, industry codes/standards, and plant procedures.\nPerform evaluation and causal analysis of equipment and system conditions, deficiencies and failures and determine corrective actions for resolution.\nTrend and monitor system and equipment health and performance, through operational data, visual inspections, and physical plant walkdowns.\nInterface with Operations, Maintenance, Work Management, and regulatory agencies as needed for planning and execution of cost-effective maintenance of assigned Systems or Programs.\nProvide engineering support during outages, emergent issues, and operational events.\nSupport Maintenance and Operations in equipment troubleshooting and provide technical expertise for troubleshooting significant events or complex plant problems.\nReview technical specifications and instruction manuals to determine testing and maintenance requirements of safety related equipment.\nDevelop and revise engineering documents, design changes, procedures, and technical specifications.\nPerform engineering evaluations and reviews of applicable NRC and INPO documents and review, use, and share Operating Experience.\nPerform calculations, technical analyses, and disposition of Requests for Resolution (RFRs) to include Engineering Evaluations, Material Equivalencies, or Modifications.\nPrepare or review procedures covering the operation, testing, and maintenance of equipment, and provide technical support in the preparation of procedure revisions or temporary changes to procedures.\nSupport changes in configuration, design and design basis. Performing or participating in technical design reviews, hazard analyses, and maintenance planning.\nAct as Responsible Engineer or Project Manager of projects or modifications, providing oversight of any outside architect or engineering and service organizations that may be used.\nAssume Emergency Response Organization (ERO) duties in accordance with Callaway Radiological Emergency Response Plan (RERP) including timely response to assigned ERO facilities.\nQualifications\nBachelor of Science Degree in Engineering from an ABET accredited institution is required. Engineer-in-Training (EIT) or Professional Engineer (PE) Registration preferred. Previous Nuclear Utility experience preferred.\nIn addition to the above qualifications, the successful candidate will demonstrate:\nGood leadership and decision-making, strong analytical and problem-solving skills, ability to work in a regulated environment and follow strict procedures, excellent written and verbal communication skills, and human relations skills required. Ability to meet plant access, security screening, and fitness-for-duty required.\nWorking Conditions\nThe Engineer typically works a standard day shift in an office and plant environment. Additional hours and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise. The Engineer must have the ability to work safely in industrial environments; radiation areas, heights, confined spaces, and be committed to industrial safety, nuclear safety culture and use of human performance tools.\nAdditional Information\nAmeren’s selection process includes a series of interviews and may include a leadership assessment process. Specific details will be provided for qualified candidates.\nCompensation Range:\n$71,100.00 - $172,200.00* This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant’s credentials.\nAt Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance.\nIf end date is listed, the posting will come down at 12:00 am on that date:\nAll qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.","description_format":"text","description_chars":6065,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy & Utilities","Power Grid"],"lifecycle":[{"event":"open","at":"2026-10-02T07:17:58Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 7","filings_12m":7,"filings_prev_12m":7,"green_card_filings_12m":0,"median_offered_wage_usd":152500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":2,"band":"cold","label":"Long shot","p_open":1,"p_active":0.072,"p_room":0.28,"age_days":271,"expected_fill_days":15,"reasons":["conf:21","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-26T05:57:25Z"},"pay":{"stated_usd_annual":172200,"is_top_pay":true},"html_url":"https://alion.io/job/ameren-mechanical-engineer","json_url":"https://alion.io/job/ameren-mechanical-engineer.json","meta":{"generated_at":"2026-10-26T23:42:43Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":32460,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":5072},"rest":"https://alion.io/mcp/rest/get_company?id=5072"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fameren-mechanical-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fameren-mechanical-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fameren-mechanical-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ameren-mechanical-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fameren-mechanical-engineer"}]}