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Senior Process Engineer Jobs in Billings, MT (NOW HIRING)

Kosmos

Sr Process Engineer

Billings, MT

$102K - $132K/yr

Growing Manufacturing Company in Butte, Montana has a need for a Process Engineer. This is a direct hire role with a full benefits package and relocation. Prefer a B.S. in Engineering, and a minimum ...

Keystone Engineering Inc.

Process Engineer

Billings, MT · On-site

Keystone Engineering is currently seeking a Process Engineer to join our team as we expand into the Western states. Apply today! Position Type: Full-time Location: Montana, Utah, Washington, and/or ...

Par Pacific

Refining Process Engineer

Billings, MT · On-site

Refining Process Engineer Posting Start Date: 7/8/26 Job Location (Short): Billings, MT, USA, 59101 Refining Process Engineer The Opportunity * Refining Process Engineer at a growth-oriented ...

CHS, Inc.

Process Engineer - Oil Refinery

Laurel, MT · On-site

We are looking for an Process Engineer to work with a team to prepare designs, specifications, start-up assistance, and support for refinery. You must be a detail-oriented, results-driven individual ...

CHS, Inc.

Process Engineer - Oil Refinery

Laurel, MT · On-site

We are looking for an Process Engineer to work with a team to prepare designs, specifications, start-up assistance, and support for refinery. You must be a detail-oriented, results-driven individual ...

Eichleay, Inc

Process Engineers

Billings, MT · On-site

We are actively building a network of Process Engineers with 5+ years of experience to support increasing project demand across our organization. Positions will be based in Ferndale, WA and ...

Sibanye Stillwater

Process Control Engineer

Columbus, MT · On-site

$80 - $100/hr

Ability to execute tasks, solve day‑to‑day technical problems, implement designs, and read/create drawings with guidance from senior engineers. * Knowledge of industrial process control design ...

Keystone Engineering Inc.

Sr. Engineer - ME

Billings, MT · On-site

$102K - $141K/yr

We incorporate their individual skills in a process that's geared toward excellence. The ... Keystone Engineering is currently seeking a Sr. Mechanical Engineer to join our team as we expand ...

Sibanye Stillwater

Process Control Engineer

Columbus, MT · On-site

$80K/yr

Process Control Engineer Location: Columbus, MT Site - Stillwater Mine & East Boulder Mine Schedule: 5x2, 4x3 9hr Shifts Job Responsibilities and Duties: At Sibanye-Stillwater, the Process Control ...

Lonmin

Process Control Engineer

Columbus, MT

Process Control Engineer Location: Columbus, MT Site - Stillwater Mine & East Boulder Mine Schedule: 5x2, 4x3 9hr Shifts Job Responsibilities and Duties: At Sibanye-Stillwater, the Process Control ...

Keystone Engineering Inc.

Sr. Engineer - CE

Billings, MT · On-site

$102K - $141K/yr

We incorporate their individual skills in a process that's geared toward excellence. The ... Keystone Engineering is currently seeking a Sr. Civil Engineer to join our team as we expand into ...

Airswift

Senior Electrical Engineer

Billings, MT · On-site

$105K - $137K/yr

Senior Electrical Engineer Duration: long-term Location: Billings, MT or Bismarck, ND Schedule: 9 ... processes. * Provide engineering input during procurement, construction and commissioning ...

Phillips 66

Sr Engineer I, Asset

Billings, MT · On-site

$141K - $172K/yr

The Sr. Engineer performs troubleshooting, failure analysis, and develops recommendations to ... Provide technical support for troubleshooting system process problems and operational issues ...

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Senior Process Engineer information

See Billings, MT salary details

$73.8K

$119.2K

$167.8K

How much do senior process engineer jobs pay per year?

As of Aug 29, 2026, the average yearly pay for senior process engineer in Billings, MT is $119,232.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,400.00 and $132,400.00 per year, depending on experience, location, and employer.

What does a senior process engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

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

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What are some common challenges senior process engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.

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

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

How much does a senior process engineer earn?

A senior process engineer typically earns between $80,000 and $130,000 annually, depending on experience, industry, and location. They often have specialized skills in process optimization, project management, and may hold certifications like Six Sigma or PE licensure.

What are popular job titles related to Senior Process Engineer jobs in Billings, MT?

For Senior Process Engineer jobs in Billings, MT, the most frequently searched job titles are:

What cities near Billings, MT are hiring for Senior Process Engineer jobs?

Cities near Billings, MT with the most Senior Process Engineer job openings:

Senior Process Engineer jobs near you
Infographic showing various Senior Process Engineer job openings in Billings, MT as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 2% Contract, and 1% Nights. Highlights an 83% Physical, 2% Hybrid, and 15% Remote job distribution, with an average salary of $119,232 per year, or $57.3 per hour.

Sr Process Engineer

Kosmos

Billings, MT

$102K - $132K/yr

Full-time

Medical, Life, Retirement

Re-posted 15 days ago

Job description

Growing Manufacturing Company in Butte, Montana has a need for a Process Engineer. This is a direct hire role with a full benefits package and relocation.

Prefer a B.S. in Engineering, and a minimum of 2 years experience.  Research and development work will include batch, continuous-batch and continuous processes. The candidate should be familiar with various designs of mixing processes including solid-solid, liquid-solid, liquid-liquid systems. Working knowledge of mixing fundamentals and design parameters for conventional mixing processes are essential. In this role, the candidate will take responsibility for assigned projects from inception to completion. The candidate will generate project requirements to resolve product/process problems and to support development of new products/processes, initiate technical investigations, and prepare protocols. The position will require research and application of advanced chemical engineering theories, methods and research techniques in solution of complex and advanced chemical engineering problems. The candidate will also be required to write reaction protocols, research reports, prepare grant proposals, and to periodically present work in a team setting and to customers, clients, investors, government organizations, and collaborators. This position affords the successful candidate the opportunity to conduct work in a rewarding environment developing materials related products, and to see those products utilized in real client applications.

Requirements of the position are: BS in Engineering.  Minimum 2 years’ experience. • Strong verbal and written communication skills • Enthusiasm for working in a diverse, demanding, and exciting technology environment • Strong work ethic and team player attributes • U.S. Citizenship • International travel will be required

Exceptional Benefits Package includes: • Personal leave • Medical insurance • Life insurance • Flexible benefit plan • Pension/profit sharing plan 401(k)