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Senior Injection Molding Process Engineer Jobs in Prairieville, LA

Westlake

SR Engineer Process Safety

Geismar, LA · On-site

This position provides key leadership in the continuous improvement of Westlake Vinyls' Process ... S. degree in Chemical or Mechanical Engineering is required. * Eight (8) years of refinery or ...

WorleyParsons

Senior Mechanical Engineer

Baton Rouge, LA · On-site

$120 - $150/hr

Senior Project Engineer About us Worley is a global company of energy, chemicals and resources ... Coordinate with piping, process, civil/structural, electrical, instrumentation, project controls ...

WorleyParsons

Senior Electrical Engineer

Baton Rouge, LA · On-site

$90 - $130/hr

- Senior Electrical Engineer (BAT00H5) Senior Electrical Engineer - BAT00H5 Company : Worley Primary ... Coordinating electrical engineering activities with multidisciplinary teams (process ...

Ecolab

Senior Environmental Engineer

Garyville, LA · On-site

$101K - $152K/yr

The Senior Environmental is responsible for supporting the plant's environmental program. This ... Serves as an environmental resource to field and operations personnel, process engineers, pre ...

Ecolab

Senior Environmental Engineer

Garyville, LA · On-site

$101K - $152K/yr

The Senior Environmental is responsible for supporting the plant's environmental program. This ... Serves as an environmental resource to field and operations personnel, process engineers, pre ...

Worley

Senior Mechanical Engineer

Baton Rouge, LA · On-site

$100K - $132K/yr

Worley is seeking a Senior Mechanical Engineer based in Baton Rouge, Louisiana. This position ... Coordinate with piping, process, civil/structural, electrical, instrumentation, project controls ...

Halff

Senior Coastal Engineer

Baton Rouge, LA · On-site

$91K - $125K/yr

The Senior Coastal Engineer will play a pivotal role in the design, analysis, and implementation of ... This position requires a deep understanding of coastal processes and engineering principles, as ...

Quanta Services

Sr. Electrical Engineer, PE

Baton Rouge, LA · On-site

$94K - $122K/yr

The Senior Electrical Engineer will be responsible for developing electrical design concepts ... Review process and mechanical documents (PFDs, P&IDs, PPFDs) to ensure electrical designs align ...

Worley

Senior Electrical Engineer

Baton Rouge, LA · On-site

$103K - $134K/yr

The Senior Electrical Engineer provides high-quality electrical engineering services to Worley and ... Coordinating electrical engineering activities with multidisciplinary teams (process ...

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Showing results 21-40

All JobsInjection Molding Process Engineer JobsSenior Injection Molding Process Engineer JobsSenior Injection Molding Process Engineer Jobs in Prairieville, LA

Senior Injection Molding Process Engineer information

See Prairieville, LA salary details

$68K

$109.8K

$154.6K

How much do senior injection molding process engineer jobs pay per year?

As of Sep 1, 2026, the average yearly pay for senior injection molding process engineer in Prairieville, LA is $109,820.00, according to ZipRecruiter salary data. Most workers in this role earn between $94,300.00 and $122,000.00 per year, depending on experience, location, and employer.

What does a senior injection molding process engineer do?

A Senior Injection Molding Process Engineer is responsible for designing, optimizing, and troubleshooting the injection molding process used to manufacture plastic parts. They oversee process improvements, ensure product quality, and collaborate with cross-functional teams to meet production goals. Additionally, they may develop and implement new molding technologies, train staff, and support maintenance of equipment to ensure efficient and reliable operations.

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

To thrive as a Senior Injection Molding Process Engineer, you need a deep understanding of polymer science, mold design, process optimization, and typically a degree in engineering or a related field. Expertise with CAD software, process simulation tools, and familiarity with quality systems like ISO 9001 are commonly required, along with certifications such as RJG or Six Sigma. Strong analytical thinking, problem-solving abilities, and effective communication are essential soft skills for collaborating with cross-functional teams and troubleshooting production issues. These skills ensure efficient production, high-quality output, and continuous improvement in complex manufacturing environments.

What are the common challenges faced by senior injection molding process engineers when introducing a new mold into production?

Senior Injection Molding Process Engineers often encounter challenges such as optimizing process parameters for new molds, ensuring part quality meets specifications, and troubleshooting issues like warpage or incomplete filling. Collaboration with design, tooling, and quality teams is essential to address these challenges and implement effective solutions quickly. Additionally, balancing production efficiency with consistent quality requires careful monitoring and adjustment during the initial production runs.

What is the difference between Senior Injection Molding Process Engineer vs Injection Molding Technician?

AspectSenior Injection Molding Process EngineerInjection Molding Technician
CredentialsBachelor's degree in engineering or related field, certifications in process optimizationTechnical diploma or associate degree, on-the-job training
Work EnvironmentDesigning processes, analyzing data, improving production efficiencyOperating machinery, performing setup and maintenance
ResponsibilitiesProcess development, troubleshooting, process validationMachine operation, quality checks, routine maintenance

The Senior Injection Molding Process Engineer focuses on process design, optimization, and troubleshooting, requiring higher-level technical skills and education. In contrast, the Injection Molding Technician handles daily machine operation and maintenance tasks. Both roles are essential in the manufacturing environment but differ in scope and responsibilities.

Senior Injection Molding Process Engineer jobs near you
Infographic showing various Senior Injection Molding Process Engineer job openings in Prairieville, LA as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $109,820 per year, or $52.8 per hour.

Sr. Mechanical Engineer, P.E.

Northstar Energy Services

Baton Rouge, LA • On-site

$91K - $120K/yr

Full-time

Re-posted 6 days ago

Job description

About Us
NorthStar Energy Services, a Quanta Services, Inc. (NYSE:PWR) company, is based in Channelview, TX and provides engineering, design, procurement, construction and support services to the chemical, petrochemical, pipeline, oil & gas, bulk storage and terminal industries throughout the country. We offer individual project services as well as turnkey EPC project implementation.
NorthStar possesses the skills and expertise to self-perform the design and installation of civil, structural, mechanical, piping, electrical, and instrumentation systems throughout a broad array of industrial applications.
Joining our team means being part of an organization that values drive and inclusion. We focus on career development and reward excellence, recognizing each team member's unique contributions. We're at the forefront of powering modern life. Discover how your skills and dedication can make a real difference to us.
About this Role
Sr. Mechanical Engineer, P.E.
(10+ Years Experience)
NorthStar Energy Services, a Quanta Services company, is seeking an experienced Sr. Mechanical Engineer, P.E. to join our Professional Engineering Consulting team in Baton Rouge, Louisiana. This role supports EPC and engineering design projects for oil & gas, petrochemical, and data center clients.
The Sr. Mechanical Engineer for this position will be responsible for the development of mechanical and piping design of energy, midstream, petrochemical facilities and data centers. The Sr. Mechanical Engineer will work closely with a multidisciplinary engineering team and independently to perform design development, equipment specifications, calculations, safety and code compliance as it pertains to the design of Energy Facilities.
What You'll Do
Engineering & Design
  • Develop mechanical and piping designs for pipeline facilities, compressor stations, pump stations, tank terminals, and data center facilities. Ensure all work meets ASME standards, including ASME BPVC Sec. VIII Div. 1 and American Petroleum Institute practices and standard such as API 610, 618 & 682.
  • Perform line sizing calculations, pipe support load analysis, and nozzle load stress evaluations in accordance with applicable codes and standards.
  • Lead piping layout development and review PPFDs and P&IDs to ensure mechanical designs align with process and operational requirements.
  • Specify rotating and fixed equipment including valves, pressure vessels, tanks, pumps, compressors, turbines, separators, and filtration systems.
  • Other responsibilities include specialty item specifications and review of pipe specifications.

Deliverable Management & Coordination
  • Coordinate mechanical deliverables with project team members across engineering disciplines.
  • Prepare hourly cost and resource estimates for project bids.
  • Interface as necessary with Company engineering and project management, drafting, procurement, as well as outside consultant engineering firms, inspection, and operations personnel.
  • Review and integrate company standards, regulatory requirements, and site-specific data (including geotechnical reports) into mechanical designs.
  • Perform QA/QC reviews of mechanical drawings, calculations, and technical documents.
  • Occasional travel to the job site to meet with clients and construction personnel as necessary to scope projects and collect information for design.
  • Routinely handle multiple projects simultaneously and effectively prioritize tasks.

What You'll Bring
Qualifications
  • 10 years' experience working with process engineers on mechanical equipment, updating P&ID's, sizing pumps, compressors, heat exchangers and pressure vessels.
  • Bachelor of Science Degree in Mechanical Engineering
  • Licensure of Professional Engineering in Louisiana/Texas
  • Proven ability to interpret and apply applicable codes and standards including:
    • ASME BPVC Section VIII
    • ASME B31.3, B31.4, B31.8
    • API 610, 674/675/676, 682
    • API 520/521, API 620, API 650, API 12C
    • Title 49 CFR Parts 190-199
  • Experience working with process engineers on mechanical equipment
  • Experience with Caesar II pipe stress a plus.

Equal Opportunity Employer
All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, national origin or ancestry, sex (including gender, pregnancy, sexual orientation, and/or gender identity), age, disability, genetic information, veteran status, and/or any other basis protected by applicable federal, state or local law.
We are an Equal Opportunity Employer, including disability and protected veteran status.
We prohibit all types of discrimination and are committed to providing access and equal opportunity for individuals with disabilities. For additional information or if reasonable accommodation is needed to participate in the job application, interview, or hiring processes or to perform the essential functions of a position, please contact us the Company's Human Resources department.

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