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Diesel Engine Mechanical Engineer Jobs in Colorado

Sr. Mechanical Engineer

Arvada, CO · On-site

$45 - $65/hr

Seeking an experienced Sr. Mechanical Engineer to design, research, build, test, and improve ... Experience with solar and diesel engine/generator-powered products is a plus. The practice of DFM ...

Diesel Mechanic

Fort Collins, CO · On-site

$28 - $35/hr

... mechanical, diesel engine problems, as well as hydraulic, and pump • Experience working on tractors. • Basic welding skills. • Ability to understand necessary safety procedures and precautions ...

Diesel Mechanic

Fort Collins, CO · On-site

$28 - $35/hr

Ability to trouble-shoot electrical, mechanical, diesel engine problems, as well as hydraulic, and pump * Experience working on tractors. * Basic welding skills. * Ability to understand necessary ...

Diesel Mechanic

Fort Collins, CO · On-site

$28 - $35/hr

... mechanical, diesel engine problems, as well as hydraulic, and pump • Experience working on tractors. • Basic welding skills. • Ability to understand necessary safety procedures and precautions ...

Independently diagnose mechanical, hydraulic, electrical, and diesel engine issues. * Perform on-site repairs, maintenance, and troubleshooting to minimize equipment downtime. * Conduct periodic ...

Independently diagnose mechanical, hydraulic, electrical, and diesel engine issues. * Perform on-site repairs, maintenance, and troubleshooting to minimize equipment downtime. * Conduct periodic ...

Independently diagnose mechanical, hydraulic, electrical, and diesel engine issues. * Perform on-site repairs, maintenance, and troubleshooting to minimize equipment downtime. * Conduct periodic ...

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Accurately troubleshoot and repair complex mechanical, electrical, and pneumatic failures on Class ... Strong command of diesel engine components (e.g., Cummins, Detroit, CAT experience is a plus ...

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In-depth knowledge of diesel engine components and operational mechanisms * Comfortable using mechanical and electrical power tools * Excellent problem-solving skills * Keen attention to detail

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In-depth knowledge of diesel engine components and operational mechanisms * Comfortable using mechanical and electrical power tools * Excellent problem-solving skills * Keen attention to detail

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In-depth knowledge of diesel engine components and operational mechanisms * Comfortable using mechanical and electrical power tools * Excellent problem-solving skills * Keen attention to detail

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Sr. Mechanical Engineer

Arvada, CO · On-site

$45 - $55/hr

Experience with solar and diesel engine/generator-powered products is a plus. The practice of DFM ... Prepare and supervise the preparation of mechanical engineering drawings - driving schedules ...

Be Seen First

Sr. Mechanical Engineer

Arvada, CO · On-site

$45 - $55/hr

Experience with solar and diesel engine/generator-powered products is a plus. The practice of DFM ... Prepare and supervise the preparation of mechanical engineering drawings - driving schedules ...

Diesel Mechanic

Pueblo, CO · On-site

$70K/yr

Your strong knowledge of diesel engine systems and diagnostics is crucial for effectively diagnosing mechanical, electrical, and electronic issues.Familiarity with diagnostic tools, software, and ...

Diesel Mechanic

Keenesburg, CO · On-site

$28 - $35/hr

Ability to trouble-shoot electrical, mechanical, diesel engine problems, as well as hydraulic, and pump * Experience working on tractors. * Basic welding skills. * Ability to understand necessary ...

Diesel Mechanic

Keenesburg, CO · On-site

$28 - $35/hr

... mechanical, diesel engine problems, as well as hydraulic, and pump • Experience working on tractors. • Basic welding skills. • Ability to understand necessary safety procedures and precautions ...

Diesel Mechanic

Keenesburg, CO · On-site

$28 - $35/hr

... mechanical, diesel engine problems, as well as hydraulic, and pump • Experience working on tractors. • Basic welding skills. • Ability to understand necessary safety procedures and precautions ...

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Diesel Engine Mechanical Engineer information

See Colorado salary details

$5

$41

$54

How much do diesel engine mechanical engineer jobs pay per hour?

As of Aug 28, 2026, the average hourly pay for diesel engine mechanical engineer in Colorado is $41.79, according to ZipRecruiter salary data. Most workers in this role earn between $34.38 and $47.50 per hour, depending on experience, location, and employer.

What does a diesel engine mechanical engineer do?

A Diesel Engine Mechanical Engineer specializes in the design, development, testing, and maintenance of diesel engines used in vehicles, power generators, marine vessels, and industrial machinery. They focus on improving engine efficiency, performance, and emissions compliance. Their work involves using computer-aided design (CAD) software, analyzing engine systems, troubleshooting technical issues, and collaborating with other engineers and technicians. Additionally, they may oversee engine installation, perform diagnostics, and develop maintenance protocols.

What are the key skills and qualifications needed to thrive as a diesel engine mechanical engineer?

To thrive as a Diesel Engine Mechanical Engineer, you need a strong background in mechanical engineering principles, thermodynamics, and diesel engine systems, usually supported by a relevant engineering degree. Familiarity with CAD software (such as AutoCAD or SolidWorks), engine diagnostic tools, and industry certifications like Professional Engineer (PE) licensure is often required. Strong analytical thinking, problem-solving abilities, and effective teamwork skills help engineers excel in this field. These competencies ensure safe, efficient engine design, troubleshooting, and maintenance, which are critical for reliability and performance in automotive and industrial applications.

What are some common challenges faced by diesel engine mechanical engineers in their daily work?

Diesel Engine Mechanical Engineers often encounter challenges such as troubleshooting complex engine issues, ensuring compliance with evolving emissions regulations, and optimizing engine performance under varying operational conditions. Collaborating closely with multidisciplinary teams—including design, testing, and manufacturing departments—is crucial to address these challenges effectively. Staying up-to-date with the latest advancements in diesel technology and diagnostic tools also plays a significant role in overcoming technical obstacles and delivering reliable engine solutions.

What is the difference between Diesel Engine Mechanical Engineer vs Mechanical Engineer?

AspectDiesel Engine Mechanical EngineerMechanical Engineer
Required CredentialsBachelor's in Mechanical Engineering, certifications in diesel engine technologyBachelor's in Mechanical Engineering, general engineering certifications
Work EnvironmentEngine testing labs, manufacturing plants, repair facilitiesDesign offices, manufacturing plants, R&D labs
Industry UsageAutomotive, heavy machinery, transportationVarious industries including aerospace, manufacturing, energy

The main difference is that Diesel Engine Mechanical Engineers specialize in designing, testing, and maintaining diesel engines, often working directly with engine components and systems. Mechanical Engineers have a broader scope, working on various mechanical systems across multiple industries. Both roles require a mechanical engineering background, but Diesel Engine Mechanical Engineers focus specifically on diesel engine technology and applications.

What are popular job titles related to Diesel Engine Mechanical Engineer jobs in Colorado?

For Diesel Engine Mechanical Engineer jobs in Colorado, the most frequently searched job titles are:

Infographic showing various Diesel Engine Mechanical Engineer job openings in Colorado 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 $86,931 per year, or $41.8 per hour.

Manufacturing & Warranty Engineer (Diesel Engines)

Alliant Power

Parker, CO • On-site

$75K - $100K/yr

Full-time

Re-posted 27 days ago


Alliant Power rating

7.2

Company rating: 7.2 out of 10

Based on 12 frontline employees who took The Breakroom Quiz


Job description

Manufacturing & Warranty Engineer – Diesel Engines

Location: Parker, Colorado

Work Arrangement: On-site, Monday through Friday

Compensation: $75,000-$100,000 annually, based on experience


About the Opportunity

Our client is an established provider of diesel engine repair components and remanufactured engine solutions serving customers throughout North America.

The company is seeking a Manufacturing & Warranty Engineer to join its Parker, Colorado operation. This newly created position will play a central role in strengthening warranty operations, investigating product failures, supporting customers with technical diagnosis, and building a more consistent process for capturing and using warranty and quality data.

This opportunity is well suited for a mechanical or manufacturing engineer who understands diesel engines and enjoys working directly with production teams, technicians, suppliers, and customers. The successful candidate will help address immediate warranty and troubleshooting needs while also developing the systems, documentation, and problem-solving framework needed to support future growth.


Key Responsibilities

  • Lead warranty claims from initial technical review through investigation, resolution, and closure.
  • Serve as a primary technical resource for customers, distributors, repair facilities, and internal teams regarding diesel engine performance and warranty concerns.
  • Guide customers through structured preliminary diagnosis to determine whether an issue may be related to the remanufactured product, installation, fuel system, supporting components, operating conditions, or another external factor.
  • Perform or coordinate root-cause investigations of returned engines and components.
  • Partner with production technicians to prioritize engine teardowns, document findings, and identify contributing failure modes.
  • Develop standardized troubleshooting questions, diagnostic requirements, inspection criteria, and escalation procedures for warranty inquiries.
  • Create and improve warranty documentation, technical reports, failure classifications, and claim-review processes.
  • Analyze warranty and production data to identify recurring defects, assembly issues, supplier concerns, and emerging product trends.
  • Use structured problem-solving methods such as 8D, 5-Why, fishbone analysis, FMEA, and corrective-action processes.
  • Translate warranty findings into practical corrective actions for manufacturing, quality, suppliers, and product-support teams.
  • Support manufacturing-process improvements intended to reduce repeat failures, warranty expense, and customer disruption.
  • Coordinate supplier investigations, returns, corrective actions, and cost-recovery efforts.
  • Help define business and system requirements for the company’s evolving warranty-management platform and reporting tools.
  • Support the transition from spreadsheet-based tracking toward a more standardized warranty and customer-service system.
  • Maintain accurate claim records, teardown documentation, supporting photographs, test results, and disposition decisions.
  • Communicate technical findings clearly and professionally to customers, including those who may be frustrated or dissatisfied.
  • Work cross-functionally with manufacturing, engineering, quality, customer service, sales, finance, suppliers, and company leadership.
  • Operate in accordance with the company’s Quality Management System and continuous-improvement standards.


Required Qualifications

  • Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, Automotive Engineering, Mechanical Engineering Technology, or a closely related discipline.
  • Three or more years of relevant experience in manufacturing engineering, product quality, warranty engineering, failure analysis, diesel engines, heavy equipment, powertrain systems, remanufacturing, or technical product support.
  • Working knowledge of diesel engine systems, components, operating principles, and common failure modes.
  • Demonstrated experience investigating mechanical or manufacturing failures and determining root cause.
  • Experience using structured problem-solving and corrective-action methods.
  • Ability to interpret technical drawings, specifications, inspection data, teardown findings, and manufacturing documentation.
  • Strong analytical skills with the ability to identify patterns and convert technical findings into useful corrective actions.
  • Strong written and verbal communication skills.
  • Ability to explain technical issues clearly to customers, technicians, and nontechnical stakeholders.
  • Patience, sound judgment, and professionalism when working with customers through difficult warranty situations.
  • Strong organizational skills and the ability to manage multiple active investigations and priorities.
  • Ability to work independently in a developing function where processes and systems are still being established.


Preferred Qualifications

  • Experience with diesel engine remanufacturing, machining, assembly, or testing.
  • Experience investigating engine, camshaft, cylinder-head, fuel-system, lubrication, cooling, turbocharger, or aftertreatment failures.
  • Background in a warranty, product reliability, supplier quality, manufacturing quality, or field-service engineering function.
  • Experience developing troubleshooting workflows, diagnostic checklists, failure-mode classifications, or warranty-review procedures.
  • Familiarity with ISO 9001:2015 or a comparable manufacturing quality system.
  • Experience with ERP, CRM, warranty-management, or quality-management platforms.
  • Experience with HubSpot, Microsoft Dynamics 365 Customer Engagement, NetSuite, or similar systems.
  • Experience working directly with repair facilities, distributors, fleet customers, dealers, or independent service technicians.
  • Bilingual English and Spanish communication skills are helpful but not required.

What Success Looks Like

During the first several months, the successful candidate will be expected to:

  • Develop a working understanding of the company’s remanufactured diesel products and current warranty process.
  • Become a dependable technical resource for customer and warranty inquiries.
  • Improve the consistency and quality of information gathered before claims are escalated or products are returned.
  • Reduce unnecessary warranty escalations caused by installation, fuel-system, supporting-component, or application issues.
  • Establish clearer failure categories, troubleshooting requirements, and teardown documentation.
  • Help identify recurring manufacturing and assembly issues and support corrective actions.
  • Build a stronger connection between customer-reported failures, warranty decisions, production findings, and continuous improvement.
  • Help create a scalable warranty process that supports future business growth.

Why Consider This Opportunity?

  • Newly created role with meaningful influence over how the warranty function develops.
  • Opportunity to combine hands-on diesel knowledge with manufacturing engineering and structured problem solving.
  • Direct exposure to production, product quality, customers, suppliers, and company leadership.
  • Ability to build processes rather than simply inherit a mature administrative system.
  • Opportunity to improve customer satisfaction while reducing repeat failures and avoidable warranty costs.
  • Stable organization with plans to expand its diesel remanufacturing business.
  • Minimal travel, generally up to 10%.
  • Competitive compensation and benefits package.



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