Full-Time

Sr Chem Process Engineer

Posted on 10/7/2025

Mallinckrodt

Mallinckrodt

1,001-5,000 employees

Specialty pharmaceutical developer, manufacturer, distributor

No salary listed

St. Louis, MO, USA

Hybrid

Category
Process Engineering
Requirements
  • Education: B.S Chemical Engineering or related field.
  • Experience: Minimum of 5-8 years of experience in chemical processing engineering
  • Skills/Qualifications: Strong knowledge of chemistry, physics, and engineering principles.
  • Skills/Qualifications: Experience with a wide variety of unit operations and both batch and continuous processes.
  • Skills/Qualifications: Strong knowledge of the physical side of chemical process engineering including P&ID, General Arrangement, and process piping drawings review.
  • Skills/Qualifications: Ability to plan, direct and execute multiple projects simultaneously.
  • Skills/Qualifications: Ability to effectively communicate with all levels of the organization, from operations to senior management, both oral and written format.
  • Other Skills: Strong working knowledge of MS Office
  • Other Skills: Knowledge of cGMP and PSM regulations
  • Competencies: Drive for Results, Problem Solving, Timely Decision Making, Written Communications, Process Management, Time Management
Responsibilities
  • Identifies and implements improvements to existing chemical processes using continuous improvement tools
  • Ensures that processes comply with all cGMP regulations in regards to process and cleaning validation
  • Completes exception investigations and implements effective corrective and preventative actions to prevent recurrence.
  • Provide supervisory oversight to the implementation of new processes that improve the efficiency of the manufacturing processes.
  • Interact with R&D, Plant Engineering, and Corporate Engineering experts to develop simulation models of existing active pharmaceutical ingredient (API) processes.
  • Use Process Simulation to debottleneck existing API processes and increase capacity.
  • Use Process Simulation to transfer processes and determine unit operation equivalency between operating units or buildings.
  • Maintain all process flow diagrams, material balances, and energy balances for their processes.
  • Work with plant safety to maintain process specific safety information.
  • Work with plant environmental to maintain process specific environmental information.
  • Work with plant logistics and planning to simulate scheduling capabilities for complex operating scenarios.
  • Work with Plant and Corporate Engineering to develop scopes of work for process improvement and plant expansion projects.
  • Support Customer and Regulatory agency audits as subject matter experts for assigned processes.
  • Perform other duties as assigned.

Mallinckrodt is a global specialty pharmaceutical company that develops, manufactures, and distributes drugs and therapies for complex and rare conditions, serving healthcare providers, hospitals, and patients mainly in the United States and Europe. Its products target areas such as autoimmune diseases, rare diseases, and critical care, and the business rests on research and development, manufacturing, and sales. The company differentiates itself through a patient-centric approach, a commitment to integrity, ongoing innovation, and collaboration, grounded in more than 150 years of experience and a focus on ESG initiatives. Its goal is to improve the health and well-being of patients worldwide by delivering specialty medicines and advancing sustainable practices.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Hazelwood, Missouri

Founded

1867

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Simplify's Take

What believers are saying

  • Merger with Endo completed, forming NYSE-listed therapeutics leader by Q4 2025.
  • Reduced debt 47% to $865.6M and grew Acthar Gel sales 14.2% in 2024.
  • Sold Therakos for $925M, optimizing portfolio for specialty pharmaceuticals.

What critics are saying

  • Endo merger integration disrupts operations, overloading with $6.7B debt.
  • Therakos sale drops immunotherapy revenue, losing edge to Amgen immediately.
  • Acthar Gel's $300K pricing triggers DOJ probe and $500M fines within 18 months.

What makes Mallinckrodt unique

  • Mallinckrodt specializes in Acthar Gel for autoimmune diseases over 150 years.
  • Focuses on rare diseases and critical care therapies for underserved patients.
  • Launched Acthar Gel self-injectable to improve patient adherence and convenience.

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Benefits

Performance Bonus

Relocation Assistance

Company News

PR Newswire
Nov 10th, 2025
Par Health Completes Spin-Off from Mallinckrodt, Creating an Independent Leader in Generic Pharmaceuticals and Sterile Injectables

Launches as Top 15 U.S. Generic Drug Manufacturer, Largest U.S. Producer of Active Pharmaceutical Ingredients and Premier U.S. Producer of Sterile Injectables...

Contract Pharma
Aug 6th, 2025
Mallinckrodt Names Christiana Stamoulis President and CFO

Mallinckrodt plc appointed Christiana Stamoulis as President and Chief Financial Officer, effective September 22, 2025.

Stock Titan
Aug 1st, 2025
Mallinckrodt-Endo Merger Creates Therapeutics Leader

Mallinckrodt and Endo have completed a merger to form a global therapeutics leader. The companies will combine their generics businesses and Endo's sterile injectables business, which will be spun off as an independent company by Q4 2025. The newly branded company will be listed on the New York Stock Exchange following the spin-off.

The Business Journals
Jul 25th, 2025
Mallinckrodt Reaches $7B Merger Milestone

Mallinckrodt has reached a milestone in a $7 billion merger deal.

Sharecast
Mar 13th, 2025
Mallinckrodt and Endo to merge in $6.7bn deal

Pharmaceutical firm Mallinckrodt said on Thursday that it has agreed to merge with Endo in a $6.7bn deal.

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