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Senior Chemical Process Engineer

Posted February 19, 2026
Full Time $130,000 - $170,000 / year

Job Overview

Strem Chemicals, Inc., an Ascensus Specialties LLC company, is seeking a Senior Chemical Process Engineer to join our team in Newburyport, MA. This is a critical, high-impact role designed for a technical leader who can bridge the gap between complex engineering design and hands-on operational excellence. This role will be responsibile for leading the manufacturing, research, and development of specialty chemicals—primarily those involving high-pressure autoclave systems—used in life-saving pharmaceuticals and cutting-edge microelectronics.

Key Responsibilities

Safety & Compliance
  • Culture of Safety: Lead by example by following all site safety procedures and policies, establishing safety as the highest operational priority.
  • Integrity of High-Pressure Systems: Ensure all autoclave equipment is maintained and in peak safe operating condition prior to any experimentation or production runs.
  • Specialized Training: Initiate, update, and train staff on high-pressure safety procedures and policies to maintain a secure working environment.
  • Compliance Management: Maintain precise safety records and manage vendor testing/certification for high-pressure equipment and safety detector systems.
  • Standardization: Develop and document rigorous Standard Operating Procedures (SOPs) for all autoclave and high-pressure processes.
Technical & Automation Excellence
  • Process Control & Programming: Utilize PLC (Siemens, Allen Bradley) or DCS software to control and monitor high-pressure equipment. This includes working with vendors to learn, modify, and optimize programming to enhance process efficiency.
  • Data-Driven Optimization: Collect and analyze run data using logging instruments to troubleshoot the autoclave process.
  • Capacity Innovation: Conduct reaction studies to identify opportunities for improvement, such as stopping reactions early or recharging and restarting to eliminate "dead time" and increase capacity.
  • Equipment Design: Collaborate with engineering and construction vendors on capital improvements, facility upgrades, and the installation/commissioning of distillation columns.
Operational Leadership & Growth
  • Production Leadership Path: Embark on a structured growth path to learn the end-to-end production process, with the ultimate goal of leading the production team within a 24-hour operational environment.
  • Manufacturing Oversight: Plan, organize, and supervise the manufacture of chemicals in autoclaves and associated equipment. Ensure raw material availability and monitor manufacturing costs to meet customer demand.
  • Yield & Quality Improvement: Perform R&D on existing and new autoclave products—specifically high-volume electronics product lines (e.g., DCOC) and API pharmaceutical products—to improve yields and reduce production times.
  • Resource Management: Responsible for the purchase of raw materials, equipment, and spare parts. Prepare and manage the high-pressure equipment budget.
  • Chemistry Integration: Demonstrate a willingness to learn the specific chemical reactions (temperature and pressure requirements) to better bridge the gap between engineering design and chemical output.
  • Other duties as assigned by the Site Director. 

Skills, Knowledge and Expertise

Education: 
  • BS in Chemical Engineering (preferred) or BS in Mechanical Engineering.
    Specialized Knowledge: If Mechanical, a strong background or coursework in chemistry is required to support autoclave synthesis operations.
Experience: 
  • 5+ years in batch fine chemicals production. Previous experience with pressure vessels or autoclaves is highly preferred.
Technical Skills: 
  • Hands-on experience with PLC/DCS automated process systems and statistical problem-solving techniques.
Physical Requirements: 
  • Ability to work in a plant environment, including climbing ladders, lifting up to 50 lbs, and wearing a respirator when required.
Schedule Flexibility: 
  • Ability to support a 24-hour operation and adjust hours as necessary to meet the demands of the plant.
Preferred Qualifications: 
  • Autoclave Operations: Direct experience managing syntheses within high-temperature/high-pressure vessels and a commitment to rigorous safety standards.
  • Process Controls: Practical experience working with PLC/DCS interfaces and using process data to drive capacity improvements and yield optimization.

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