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Freelance Ammonia Process Engineer Jobs (NOW HIRING)

J&J Snack Foods

Process Engineering Lead

La Vergne, TN · On-site

$98K - $127K/yr

The Process Engineering Lead partners closely with cross-functional teams to translate product ... Provides engineering support for bakery utilities, including steam systems, ammonia refrigeration ...

United Employment Group

Be Seen First

Ammonia Refrigeration Technician

Henderson, NV · On-site

$32.96 - $40/hr

  • Medical

  • Dental

  • Vision

  • PTO

... programmable hardware such as input/output cards, backplanes, processor and various other logic ... Ammonia refrigeration maintenance experience preferred. * Must have the knowledge to diagnose and ...

Brookshire Grocery Company

Ammonia Technician

Tyler, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... Engineering Practices (RAGAGEP). SKILLS AND EDUCATION Knowledge, Skills and Abilities ... Ability to learn new technology systems, methods and processes. * Ability to comprehend and ...

Brookshire Grocery Company

Ammonia Technician

Tyler, TX · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... Engineering Practices (RAGAGEP). SKILLS AND EDUCATION Knowledge, Skills and Abilities ... Ability to learn new technology systems, methods and processes. * Ability to comprehend and ...

Ecolab

Process Chemical Engineer II

Plano, TX · On-site

$80K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We are seeking a Process Chemical Engineer II to design, specify, and implement chemical ... ammonia peroxide treatment, copper slurry waste, chemical mechanical polish metal, and oxide waste

Ecolab

Process Chemical Engineer II

Plano, TX · On-site

$80K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We are seeking a Process Chemical Engineer II to design, specify, and implement chemical ... ammonia peroxide treatment, copper slurry waste, chemical mechanical polish metal, and oxide waste

Brookshire Grocery Company

Ammonia Technician

Tyler, TX

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... Engineering Practices (RAGAGEP). SKILLS AND EDUCATION Knowledge, Skills and Abilities ... Ability to learn new technology systems, methods and processes. * Ability to comprehend and ...

TekSky

Ammonia Refrigeration Technician

Fullerton, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... engineering and construction service in the commercial and industrial air conditioning, ammonia and ... processes, procedures, & safety protocols. • Completes orientation on safety policies and ...

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Freelance Ammonia Process Engineer information

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How much do freelance ammonia process engineer jobs pay per year?

As of Aug 16, 2026, the average yearly pay for freelance ammonia process engineer in the United States is $137,385.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,500.00 and $147,500.00 per year, depending on experience, location, and employer.

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Freelance Ammonia Process Engineer jobs near you

Senior Landfill Leachate Treatment Process Engineer

McKim & Creed

Sewickley, PA • On-site

$52.75 - $68.25/hr

Full-time

Posted 9 days ago

McKim & Creed rating

8.8

Company rating: 8.8 out of 10

Based on 9 frontline employees who took The Breakroom Quiz

67th of 449 rated engineering

Job description

OVERVIEW: McKim & Creed is seeking a Senior Landfill Leachate Treatment Process Engineer to join our successful and growing team and help expand our presence in the solid waste market. This is an opportunity for an experienced treatment professional to step directly into multiple active landfill leachate treatment projects while helping build the next phase of our solid waste and environmental treatment practice.
The successful candidate will have an immediate opportunity to contribute to ongoing projects involving landfill leachate treatment, PFAS and emerging contaminants, biological treatment, membrane systems, reverse osmosis, activated carbon, advanced treatment processes, residuals management, and treatment system integration. The role will work closely with our process, mechanical, electrical, instrumentation and controls, civil, and environmental professionals to deliver practical, implementable solutions for our clients.
Our work in the solid waste market is growing rapidly, with landfill owners and operators increasingly looking to McKim & Creed for solutions to complex leachate treatment and water quality challenges. We are looking for a senior engineer who brings strong process engineering experience, enjoys solving difficult treatment problems, and can work collaboratively with multidisciplinary teams to move projects from evaluation and treatability through design, implementation, startup, and optimization.
This position is well suited for a senior engineer who wants more than a single-project technical role. You will have the opportunity to jump immediately into meaningful active projects, influence how solutions are developed and delivered, and help shape a growing solid waste practice within an established multidisciplinary engineering firm.
At McKim & Creed, you'll join a collaborative team with growing technical depth, an expanding portfolio of landfill leachate and solid waste work, and a strong pipeline of opportunities. We are looking for someone excited to contribute to that momentum and grow with us.
DURING YOUR WORK-DAY, YOU WILL:
Beyond supporting our existing workload, this position will play an important role in the continued growth of McKim & Creed's solid waste practice. We are looking for someone who can bring technical leadership to projects, mentor developing engineers, build trusted relationships with clients and technology providers, and help identify and pursue new opportunities across the landfill and solid waste market.
WHAT YOU'LL DO:
  • Serve as a senior technical resource for landfill leachate treatment projects ranging from process evaluations and treatability studies through detailed design, construction, startup, and optimization.
  • Immediately contribute to multiple active leachate treatment projects for landfill and solid waste clients.
  • Develop and evaluate treatment process alternatives based on leachate characteristics, discharge requirements, operational objectives, lifecycle cost, and site constraints.
  • Lead or support process design activities including basis-of-design development, process calculations, mass balances, process flow diagrams, P&IDs, equipment sizing and selection, specifications, control narratives, and system layouts.
  • Evaluate and integrate treatment technologies such as biological treatment, membrane systems, reverse osmosis, activated carbon, advanced oxidation, and other physical/chemical treatment processes.
  • Address challenging constituents including PFAS, metals, ammonia, organics, dissolved solids, and other conventional and emerging contaminants.
  • Work closely with equipment vendors and technology providers to evaluate, select, and integrate packaged and vendor-supplied treatment systems.
  • Collaborate with multidisciplinary engineering teams responsible for civil/site, mechanical, structural, electrical, instrumentation, controls, PLC/SCADA, storage, containment, and supporting infrastructure.
  • Provide technical leadership during equipment procurement, construction, commissioning, startup, troubleshooting, and system optimization.
  • Develop strong relationships with landfill owners, operators, solid waste companies, technology providers, and other industry partners.
  • Support proposals, client development, and strategic pursuits as McKim & Creed continues expanding its presence in the solid waste market.
  • Mentor engineers and help strengthen the technical capabilities of our growing treatment team.

WHAT WILL MAKE YOU STAND OUT:
  • The ideal candidate is an experienced process engineer who combines strong technical fundamentals with practical treatment-system experience. You should be comfortable moving between high-level treatment strategy and detailed process design and equally comfortable working with clients, operators, vendors, and multidisciplinary engineering teams.
  • Experience specifically with landfill leachate treatment is strongly preferred, including familiarity with the unique variability, contaminant loading, operational challenges, and regulatory considerations associated with landfill leachate. Experience with industrial wastewater or other high-strength, complex wastewaters may also be relevant.

WHAT WE OFFER: Join a company that puts its employees first.
Ranked as one of the Best Firms to Work For, here are just some of the reasons to become part of the McKim & Creed team:
  • Employee Stock Ownership Plan (ESOP): All employees are owners & benefit from profits earned.
  • Competitive pay: Paid holidays, bereavement, and parental, medical, and military leave.
  • Multiple office locations to work from: Stick close to home or travel for a change of scenery.
  • Growth opportunities & training: Grow confidently in your career with our mentoring & training options.
  • Professional development: Tuition reimbursement, early career professional program, online courses & more.
  • Work that makes a difference: See the direct impact your work has on our communities.
  • Collaborative, supportive team: People to help you solve problems, cheer successes & encourage you along the way.

McKim & Creed is an Equal Opportunity and Affirmative Action Employer, and VEVRAA Federal Contractor and will consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status or disability status and maintains a Drug Free Workplace.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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