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Senior Process Development Engineer Jobs in Acton, MA

Sr. Process Engineer

Billerica, MA ยท On-site

$105K - $130K/yr

Sr. Process Engineer Billerica, MA Quanterix is a global leader in ultra-sensitive biomarker ... In this critical role, this individual will drive the development and deployment of our IVD reagent ...

Develops detailed process documentation in collaboration with R&D, Process Engineering, and Automation Engineering to scale-up and launch new products. * Technical resource for troubleshooting ...

Sr. Process Engineer

Billerica, MA ยท On-site +1

$105K - $130K/yr

Sr. Process EngineerBillerica, MA Quanterix is a global leader in ultra-sensitive biomarker ... D on IVD and RUO product development. * Write documentation for IVD and RUO products and processes.

Senior Process Engineer

Norwood, MA ยท On-site

$117K - $152K/yr

The Senior Process Engineer will develop, oversee and maintain high profile projects and workflows. This individual will serve as an intermediary between the Executive, Business, Operation and ...

New

Senior Process Engineer

Billerica, MA ยท On-site

$110K - $142K/yr

THE ROLE E Ink's Development Group is looking for an experienced Coating Engineer to join the Coating and Lamination Process development team. As a member of this team, this individual will work on ...

Senior Process Engineer

Billerica, MA

$110K - $142K/yr

THE ROLE E Ink's Development Group is looking for an experienced Coating Engineer to join the Coating and Lamination Process development team. As a member of this team, this individual will work on ...

Showing results 41-60

Senior Process Development Engineer information

See Acton, MA salary details

$82.6K

$133.3K

$187.7K

How much do senior process development engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for senior process development engineer in Acton, MA is $133,348.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,500.00 and $148,100.00 per year, depending on experience, location, and employer.

What does a senior process development engineer do?

A Senior Process Development Engineer is responsible for designing, developing, and optimizing manufacturing processes to improve efficiency, quality, and cost-effectiveness. They often lead teams in scaling up processes from the laboratory to full production, troubleshoot technical issues, and implement new technologies or methods. Additionally, they collaborate with cross-functional teams, including R&D, quality assurance, and production, to ensure processes meet regulatory and safety standards. Their expertise helps companies maintain competitive advantages and meet production goals.

What are the key skills and qualifications needed to thrive as a senior process development engineer?

To thrive as a Senior Process Development Engineer, you need a strong background in chemical or mechanical engineering, process optimization, and project management, typically supported by a relevant engineering degree. Familiarity with CAD software, process simulation tools (such as Aspen Plus or MATLAB), and Six Sigma or Lean Manufacturing certifications is often required. Excellent problem-solving, leadership, and communication skills help you coordinate cross-functional teams and drive continuous improvement. These skills are crucial for developing efficient, scalable processes that meet quality standards and business goals.

What are some common challenges a senior process development engineer may face when scaling up a new process from the lab to full production?

Senior Process Development Engineers often encounter challenges such as maintaining product quality and consistency when transitioning from small-scale laboratory experiments to large-scale manufacturing. This process typically involves troubleshooting equipment limitations, optimizing process parameters, and ensuring compliance with safety and regulatory standards. Effective collaboration with cross-functional teams, such as R&D, manufacturing, and quality assurance, is crucial to address these challenges and achieve a smooth scale-up. Adaptability and problem-solving skills are essential to navigate unexpected issues that may arise during this transition.

What is the difference between Senior Process Development Engineer vs Process Engineer?

AspectSenior Process Development EngineerProcess Engineer
CredentialsBachelor's or Master's in Chemical, Mechanical, or Industrial Engineering; experience in process developmentBachelor's degree in Engineering or related field; entry to mid-level experience
Work EnvironmentResearch and development labs, manufacturing facilities, cross-functional teamsManufacturing plants, production lines, process optimization teams
Industry UsagePharmaceuticals, chemicals, biotech, manufacturingManufacturing, chemical processing, consumer goods

The main difference is that Senior Process Development Engineers focus on developing and optimizing new processes, often in R&D settings, while Process Engineers typically oversee existing manufacturing processes to improve efficiency and quality. Senior roles involve more strategic planning and innovation, whereas Process Engineers focus on day-to-day process operations.

What job categories do people searching Senior Process Development Engineer jobs in Acton, MA look for?

The top searched job categories for Senior Process Development Engineer jobs in Acton, MA are:

What cities near Acton, MA are hiring for Senior Process Development Engineer jobs?

Cities near Acton, MA with the most Senior Process Development Engineer job openings:

Infographic showing various Senior Process Development Engineer job openings in Acton, MA as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, 1% Temporary, and 2% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $133,348 per year, or $64.1 per hour.

2.1. Senior Process Engineer - Hydrometallurgist

Phoenix Tailings

Burlington, MA โ€ข On-site

$120K - $160K/yr

Full-time

Medical, Dental, Vision, PTO

Re-posted 16 days ago


Key responsibilities

  • Lead the design, execution, and analysis of hydrometallurgical experiments involving leaching, purification, precipitation, solid-liquid separation, solvent extraction, and related processes

  • Develop and optimize process conditions for laboratory, bench-scale, and pilot-scale hydrometallurgical systems

  • Translate experimental results into process flow diagrams, mass balances, operating windows, equipment specifications, and scale-up recommendations


Job description

About Phoenix Tailings 

Phoenix Tailings is a rapidly growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. Our mission is to be the world’s first fully clean mining and metals production company—producing the resources required to power the technology of today and tomorrow. 

Why Phoenix Tailings 

At Phoenix, we’re building more than technology—we’re building the future supply chain for critical and rare earth metals. This work matters. It demands urgency, rigor, and creativity. You’ll join a team that values ownership, technical excellence, and the courage to challenge legacy approaches to mining and metals production. 

Our Values:  

You are only crazy if you are wrong, it’s ok to be wrong
Lead with Compassion
Be Resourceful
Listen
Hustle

Who We Are Looking For: 

Phoenix Tailings is looking for a Senior Process Engineer- Hydrometallurgist to lead hands-on process development, optimization, and scale-up of hydrometallurgical systems for critical and rare earth metals production. This role is ideal for someone with deep technical experience in wet chemistry, aqueous processing, leaching, precipitation, separation, purification, and pilot-scale development who wants to build real-world industrial processes, not just model them. 

This position will play a key role in translating laboratory results into scalable process designs that support Phoenix Tailings’ transition from R&D to commercial deployment. You will work closely with R&D, engineering, and pilot operations teams to design experiments, troubleshoot complex process challenges, develop operating parameters, and guide junior engineers and scientists. 

 
Key Responsibilities:
  • Lead the design, execution, and analysis of hydrometallurgical experiments involving leaching, purification, precipitation, precipitation, solid-liquid separation, solvent extraction, and related critical metals processes 
  • Develop and optimize process conditions for laboratory, bench-scale, and pilot-scale hydrometallurgical systems 
  • Translate experimental results into process flow diagrams, mass balances, operating windows, equipment specifications, and scale-up recommendations  
  • Provide technical leadership for wet chemistry work, including solution chemistry, acid-base chemistry, pH control, filtration, precipitation, reagent selection, and process troubleshooting 
  • Support equipment sizing and selection for reactors, filtration systems, thickeners, mixer-settlers, tanks, pumps, and other hydrometallurgical process equipment 
  • Lead root-cause analysis and troubleshooting for process performance issues, including recovery losses, impurity behavior, phase separation challenges, and process instability  
  • Collaborate with engineering, R&D, and operations teams to develop pilot-scale test plans, operating procedures, and process control strategies  
  • Mentor junior engineers, scientists, and technicians in experimental design, lab execution, safety practices, data interpretation, and technical documentation  
  • Maintain clear technical records and prepare reports, presentations, and recommendations for internal design reviews and leadership discussions  
  • Support the scale-up of Phoenix Tailings’ critical metals production processes from R&D through commercial deployment  
Qualifications:
  • Bachelor’s, Master’s, or PhD in Chemical Engineering, Metallurgical Engineering, Materials Science, Chemistry, or a related technical discipline  
  • 5+ years of experience in hydrometallurgy, wet chemistry, chemical process development, mineral processing, metals refining, or related chemically intensive systems  
  • Strong hands-on experience with hydrometallurgical unit operations, including leaching, precipitation, filtration, solid-liquid separation, solvent extraction, purification, and crystallization  
  • Demonstrated experience translating laboratory or bench-scale data into pilot-scale or commercial process development decisions  
  • Strong understanding of aqueous chemistry, solution speciation, acid-base chemistry, impurity control, reagent behavior, and process optimization  
  • Experience developing mass balances, process flow diagrams, experimental plans, technical reports, and operating procedures  
  • Experience mentoring junior technical team members or leading technical workstreams in a laboratory, pilot, or industrial environment  
 
We offer a competitive compensation package that is based on expertise. We also offer the following benefits:

This pay range reflects best estimate for the total cash compensation which includes salary + discretionary bonus for this role. Total package  may vary based on experience and qualifications.

Pay Range: $120,000- $160,000 total cash compensation plus equity

  • Healthcare: 100% Medical, dental, and vision coverage for employee.
  • Stock Options: Ownership in a fast-growing venture-backed company. 
  • Time Off: Unlimited PTO. 
  • Learning: Learning and development opportunities to grow your skills and career. 
At Phoenix Tailings, we have an open culture that values learning, and we are looking to grow the team with enthusiastic individuals who share our vision of sustainable mining.  
 
Phoenix Tailings, Inc. is an Equal Opportunity Employer, and we value diversity at all levels. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex (including gender identity, sexual orientation, and pregnancy), national origin, age, disability or genetic information, or any other applicable protected characteristics, and these characteristics will not be a factor for consideration of any work-related decisions (including but not limited to hiring, firing, compensation, and discipline). 

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.