Diesel Mechanic ATS Optimization Checklist: Get Your Resume Past the Digital Gatekeeper
With 65.5% of diesel repair shops reporting understaffed locations and an average vacancy rate of 19.3%, the demand for qualified diesel service technicians has never been stronger [1]. Yet qualified candidates still lose out on interviews because their resumes never reach a human recruiter. Applicant tracking systems now screen the majority of diesel mechanic applications at fleet operators, dealership networks, and construction equipment companies before any hiring manager sees them. This guide breaks down exactly how to build a diesel mechanic resume that clears ATS filters and lands on the right desk.
The Bureau of Labor Statistics reports that diesel service technicians and mechanics earned a median annual wage of $60,640 in May 2024 — more than $11,000 above the national median for all occupations [2]. About 28,500 openings are projected each year through 2034, while fewer than 11,000 students complete diesel training programs annually [3]. That math creates a 17,000-technician annual deficit, which means shops are actively searching for candidates. The problem is not a lack of jobs. The problem is getting your resume through the automated screening layer that sits between your application and the shop foreman who actually needs you on the floor.
How ATS Systems Process Diesel Mechanic Resumes
Applicant tracking systems used by fleet operators like Penske, Ryder, and Schneider — as well as construction firms, transit authorities, and heavy equipment dealerships — parse resumes into structured data fields: contact information, work history, education, certifications, and skills. The software then scores each application against the job posting's requirements using keyword matching, credential verification, and experience-level filters.
For diesel mechanic roles specifically, ATS screening tends to focus on three areas:
1. Certification matches. The system checks for specific credential abbreviations. "ASE T2" is recognized differently than "diesel engine certified." If a posting requires ASE Medium/Heavy Truck certification and your resume says "certified diesel technician" without the ASE T-series designation, the system may not register a match.
2. Equipment and software proficiency. Fleet managers and shop supervisors write postings that name specific diagnostic platforms — Cummins INSITE, JPRO, Caterpillar ET, Detroit DDDL. The ATS searches for these exact tool names. Listing "diagnostic software experience" without naming the platforms costs you points in the keyword match.
3. Compliance credentials. DOT inspector qualifications, EPA Section 608 certification, CDL class, and OSHA training each have specific abbreviations the ATS recognizes. Missing the correct format (writing "Department of Transportation certified" instead of "DOT-certified") can mean a failed match on a required qualification.
Understanding this parsing behavior is the foundation of ATS optimization. The system is not evaluating whether you are a good mechanic. It is checking whether your document contains specific strings that match the job posting. Your job is to ensure those strings are present, correctly formatted, and placed where the parser expects to find them.
Essential Keywords and Phrases for Diesel Mechanic Resumes
The following keywords are drawn from analysis of current diesel mechanic, diesel technician, and heavy equipment mechanic job postings across fleet operators, construction companies, dealership service departments, and independent shops [4][5]. Organize them into your resume based on where they fit naturally — do not dump them into a single block.
Hard Skills and Technical Competencies
- Diesel engine repair and overhaul
- Preventive maintenance (PM) services
- DOT annual inspections
- Brake system diagnosis and repair (air brakes, hydraulic brakes)
- Electrical and electronic system troubleshooting
- Fuel system diagnosis (common rail, unit injection, HEUI)
- Aftertreatment system service (DPF regeneration, DEF systems, SCR catalyst)
- Hydraulic system maintenance and repair
- HVAC system service (EPA Section 608)
- Drivetrain and transmission repair
- Suspension and steering system service
- Turbocharger inspection and replacement
- Welding (MIG, TIG, arc)
- Tire mounting and wheel alignment
- Emissions system compliance
Diagnostic Software and Tools
- Cummins INSITE
- JPRO Commercial Vehicle Diagnostics
- Caterpillar Electronic Technician (Cat ET)
- Detroit Diesel Diagnostic Link (DDDL)
- Navistar Engine Diagnostics System (NEDS)
- Allison DOC (Diagnostic Optimized Connection)
- Bendix ACom
- Wabco Diagnostic Software
- NEXIQ USB-Link
- Snap-on diagnostic tools
- Mitchell1 / ALLDATA repair databases
- Multimeter and oscilloscope diagnostics
Equipment Types
- Class 6, 7, and 8 trucks
- Over-the-road (OTR) tractors
- Construction equipment (excavators, loaders, dozers, graders)
- Transit buses and coach buses
- Refuse collection vehicles
- Refrigerated trailers (reefer units)
- Aerial lift equipment
- Generator sets and auxiliary power units (APUs)
- Cummins, Detroit Diesel, Caterpillar, PACCAR, and Navistar/International engines
Certifications and Credentials
- ASE Medium/Heavy Truck Certification (T-Series: T1-T8)
- ASE Master Medium/Heavy Truck Technician
- CDL Class A or Class B
- DOT Inspector Qualification
- EPA Section 608 Certification
- OSHA 10-Hour or 30-Hour Construction
- Manufacturer-specific certifications (Cummins, Caterpillar, Detroit Diesel, Allison)
- State emission inspection license (where applicable)
- Forklift operator certification
Soft Skills and Workplace Competencies
- Work order documentation
- Fleet management communication
- Safety protocol compliance
- Parts inventory management
- Warranty claim processing
- Root cause analysis
- Apprentice and technician mentoring
- Shop housekeeping and 5S practices
Resume Format Optimization for ATS Parsing
ATS software reads your resume as a data file, not as a visual document. Formatting choices that look professional to a human reader can break parser logic and cause your information to be misread or dropped entirely.
File Format
Save your resume as a .docx file unless the posting specifically requests PDF. Most modern ATS platforms handle both formats, but .docx has the highest compatibility rate across systems. If you submit a PDF, ensure it is text-based (created from a word processor), not a scanned image.
Layout Rules
- Single-column layout. Two-column and sidebar designs confuse many ATS parsers, which read left-to-right, top-to-bottom. Information in a sidebar may be parsed out of order or skipped entirely.
- Standard section headings. Use exact conventional headings: "Professional Summary," "Work Experience," "Education," "Certifications," "Skills." Creative alternatives like "What I Bring" or "My Toolbox" will not be recognized.
- No tables, text boxes, or graphics. ATS parsers strip these elements. A skills section formatted in a table may disappear from the parsed output. Logos, icons, and rating bars (those skill-level dots or bars) are invisible to the system.
- Standard fonts. Arial, Calibri, Times New Roman, or Garamond in 10-12 point. Custom or decorative fonts can cause character-encoding issues.
- Consistent date formatting. Use "Month Year – Month Year" or "MM/YYYY – MM/YYYY" for all positions. Avoid using only years, which makes it impossible for the system to calculate tenure.
Header and Contact Information
Place your full name, phone number, email, and city/state at the top of the document. Do not include your address in a header or footer — some ATS platforms cannot read header/footer content. Include your LinkedIn URL if your profile is complete and matches your resume content.
Section-by-Section Optimization Guide
Professional Summary
The professional summary is the first content the ATS and the recruiter both read. It should be 3-5 sentences that establish your experience level, core competencies, and the value you deliver. Front-load it with high-priority keywords.
Variation 1 — Experienced Fleet Technician:
"ASE Master Medium/Heavy Truck Technician with 12 years of experience performing diesel engine overhaul, preventive maintenance, and DOT annual inspections on Class 8 OTR fleets. Proficient with Cummins INSITE, JPRO, and Caterpillar ET diagnostic platforms. Maintained a 98.2% first-time fix rate across a 340-unit fleet while reducing unscheduled downtime by 22% through proactive PM scheduling and root cause analysis."
Variation 2 — Construction Equipment Diesel Mechanic:
"Diesel mechanic with 7 years of hands-on experience servicing Caterpillar, Komatsu, and John Deere heavy construction equipment including excavators, dozers, wheel loaders, and motor graders. ASE T2 and T4 certified with EPA Section 608 credentials. Reduced equipment downtime 31% at a 200-unit construction fleet by implementing a structured PM program and real-time diagnostic monitoring using Cat ET and JPRO."
Variation 3 — Early-Career Diesel Technician:
"Diesel service technician with AAS in Diesel Technology and ASE T2 (Diesel Engines) and T4 (Brakes) certifications. Completed 2,400 hours of hands-on shop training on Cummins, Detroit Diesel, and PACCAR engines. Skilled in aftertreatment system service including DPF regeneration and SCR catalyst replacement, electrical system troubleshooting using multimeter and oscilloscope diagnostics, and air brake system inspection to DOT standards."
Work Experience
Work experience is where the ATS performs its deepest keyword analysis and where recruiters spend the most time. Every bullet point should follow the CAR formula: Context + Action + Result, with quantified outcomes wherever possible.
Formatting rules for ATS compatibility:
- Job title on its own line, matching the posting's language as closely as your actual role allows
- Company name, city, state on the next line
- Dates in consistent Month Year format
- 5-8 bullet points per position, starting with a strong action verb
15 Example Bullet Points with Metrics:
-
Performed preventive maintenance services on a fleet of 280 Class 8 over-the-road tractors, completing an average of 14 PM services per week with a 99.1% on-time completion rate.
-
Diagnosed and repaired Cummins ISX15 and Detroit DD15 engines using INSITE and DDDL diagnostic software, reducing diagnostic time by 35% compared to manual troubleshooting methods.
-
Conducted DOT annual inspections on 340+ commercial vehicles per year, maintaining a 100% compliance rate across three consecutive FMCSA audit cycles.
-
Overhauled 23 diesel engines (Cummins ISX, Caterpillar C15, Detroit DD13) in a 12-month period, returning each unit to service within an average of 4.2 working days versus the shop benchmark of 5.5 days.
-
Serviced aftertreatment systems including DPF cleaning, forced regeneration, SCR catalyst replacement, and DEF dosing system calibration on 180+ units, reducing aftertreatment-related breakdowns by 41%.
-
Rebuilt air brake systems (foundation brakes, valves, air dryers, compressors) on Class 6-8 trucks, cutting brake-related roadside violations by 67% across the fleet.
-
Troubleshot and repaired electrical systems including ECM circuits, multiplexing networks, ABS modules, and lighting harnesses on Freightliner, Kenworth, and Peterbilt tractors using JPRO and multimeter diagnostics.
-
Managed a preventive maintenance program for 85 pieces of heavy construction equipment (Cat excavators, Komatsu dozers, Volvo articulated haulers), increasing fleet availability from 82% to 94% over 18 months.
-
Performed hydraulic system repairs on construction equipment including cylinder reseal, pump replacement, valve body overhaul, and contamination analysis, reducing hydraulic failure incidents by 28%.
-
Welded structural repairs (MIG and stick) on truck frames, equipment booms, and bucket assemblies per manufacturer specifications, completing 140+ weld repairs in 2024 with zero rework.
-
Trained and mentored 4 apprentice technicians through ASE T-series exam preparation, resulting in all 4 achieving T2 (Diesel Engines) certification within their first year.
-
Documented all repairs, parts usage, and labor hours in fleet management software (TMT Fleet Maintenance), ensuring 100% work order closure within 24 hours of job completion.
-
Reduced parts inventory waste by 18% by implementing a standardized PM kit program for the top 15 maintenance intervals across the fleet's Cummins and Detroit engine platforms.
-
Diagnosed and repaired reefer unit failures (Carrier Transicold and Thermo King) on 65 refrigerated trailers, maintaining 99.7% cargo temperature compliance during peak summer season.
-
Performed on-site emergency road service repairs averaging 3.2 calls per week, restoring vehicles to operational status with a 91% first-call resolution rate and average response time of 47 minutes.
Skills Section
The skills section serves as a keyword-dense index that the ATS scans quickly. Format it as a simple comma-separated or bulleted list — no charts, bars, or ratings.
Recommended structure:
Technical Skills: Diesel engine overhaul, preventive maintenance, DOT annual inspections, air brake systems, electrical diagnostics, aftertreatment systems (DPF/SCR/DEF), hydraulic systems, fuel system diagnosis, HVAC service, turbocharger service, drivetrain repair, welding (MIG/TIG/arc)
Diagnostic Platforms: Cummins INSITE, JPRO, Caterpillar ET, Detroit DDDL, Navistar NEDS, Allison DOC, Bendix ACom, NEXIQ USB-Link, Snap-on scan tools, Mitchell1, ALLDATA
Certifications: ASE T2 (Diesel Engines), ASE T4 (Brakes), ASE T6 (Electrical/Electronic Systems), EPA Section 608, DOT Inspector Qualified, CDL Class A, OSHA 10-Hour
Education and Certifications
List your highest relevant education first, followed by certifications in order of relevance to the target job. Include the credential name exactly as the issuing body formats it — this is what the ATS is searching for.
Education example:
Associate of Applied Science, Diesel Technology Lincoln Technical Institute, Indianapolis, IN Graduated May 2018
Certification listing format:
- ASE Master Medium/Heavy Truck Technician (T2-T8) — Certification #XXXXX, exp. 12/2027
- CDL Class A with Air Brake and Tanker endorsements — State of Indiana
- DOT Annual Vehicle Inspector — FMCSA Qualified, recertified 2025
- EPA Section 608 Universal Certification — No expiration
- Cummins Certified Technician — Level 3, completed 2024
- OSHA 30-Hour Construction Safety — Completed 2023
Common Mistakes to Avoid
1. Using "Mechanic" When the Posting Says "Technician"
Job title alignment matters for ATS scoring. If the posting title is "Diesel Service Technician" and your resume says "Diesel Mechanic" throughout, the system may score you lower on title match. Mirror the posting's job title in your professional summary and current position title (as long as it accurately reflects your actual role).
2. Listing Certifications Without Specificity
Writing "ASE Certified" without specifying which certifications you hold gives the ATS nothing to match against. A posting requiring "ASE T4 (Brakes)" will not match against a generic "ASE Certified" entry. Always list the specific test series and area designation: "ASE T2 — Diesel Engines," "ASE T4 — Brakes," "ASE T6 — Electrical/Electronic Systems" [6].
3. Omitting Diagnostic Software by Name
"Experience with diagnostic tools" tells the ATS nothing. Postings from major fleet operators like Penske, Werner, and Knight-Swift specifically name Cummins INSITE, JPRO, Cat ET, and Detroit DDDL [7]. If you have used these platforms, name them. If you have experience with the NEXIQ USB-Link hardware that interfaces with most of these platforms, list that too.
4. Burying CDL Information
Many diesel mechanic positions require a CDL for moving vehicles in and out of the shop, performing road tests, or handling emergency roadside service calls [8]. If you hold a CDL, it should appear in both your certifications section and your professional summary. A CDL Class A with air brake endorsement is a strong differentiator — do not bury it at the bottom of the page.
5. Vague Work Experience Without Metrics
"Performed diesel engine repairs" is ATS-neutral — it matches a keyword, but it gives neither the system nor the recruiter a reason to advance your application. Quantified results demonstrate competence in a way that keywords alone cannot. "Overhauled 18 Cummins ISX15 engines with an average turnaround of 4.0 days and zero warranty comebacks" tells a complete story: scope, speed, and quality.
6. Using a Functional Resume Format
Functional resumes (which group experience by skill category rather than chronological employment) are poorly parsed by most ATS platforms. The system expects to find job titles, company names, dates, and bullet points in a standard reverse-chronological structure. Functional formats often result in work history being incorrectly parsed or entirely missed.
7. Including Outdated or Irrelevant Certifications
An expired ASE certification (renewal is required every 5 years) listed without noting expiration status can create confusion [6]. If a certification has lapsed, either renew it before applying or omit it. Similarly, unrelated certifications (food handler's permit, for instance) dilute your keyword density and waste valuable resume space.
ATS Optimization Checklist for Diesel Mechanics
Print this checklist and verify each item before submitting your application.
Format and Structure
- [ ] Resume saved as .docx (or text-based PDF if required)
- [ ] Single-column layout with no tables, text boxes, or graphics
- [ ] Standard section headings: Professional Summary, Work Experience, Skills, Education, Certifications
- [ ] Standard font (Arial, Calibri, Times New Roman) in 10-12pt
- [ ] Contact information in the body of the document, not in a header/footer
- [ ] Consistent date format throughout (Month Year – Month Year)
- [ ] No skill-rating bars, icons, or graphical elements
- [ ] Resume length: 1-2 pages (1 page if under 10 years experience)
Keywords and Content
- [ ] Job title in resume matches or closely mirrors the posting's title
- [ ] Professional summary includes 3-5 high-priority keywords from the posting
- [ ] All relevant ASE certifications listed with specific T-series designations
- [ ] CDL class and endorsements specified (if held)
- [ ] DOT, EPA, and OSHA credentials listed with correct abbreviations
- [ ] Diagnostic software named individually (Cummins INSITE, JPRO, Cat ET, DDDL)
- [ ] Equipment types listed (Class 6/7/8, construction equipment by make/model)
- [ ] Engine brands named (Cummins, Detroit Diesel, Caterpillar, PACCAR, Navistar)
- [ ] Technical skills section includes 15-20 specific competencies
- [ ] Soft skills relevant to the role are demonstrated (not just listed)
Work Experience
- [ ] Each position includes 5-8 bullet points with quantified results
- [ ] Bullet points begin with action verbs (diagnosed, overhauled, performed, reduced, maintained)
- [ ] Metrics included: fleet size, PM completion rates, downtime reduction, units serviced
- [ ] Work orders, fleet management software, and documentation practices mentioned
- [ ] Safety record and compliance metrics included where applicable
- [ ] Most recent and relevant experience listed first (reverse chronological)
Certifications and Education
- [ ] Certifications listed with issuing body, certification number (optional), and expiration
- [ ] ASE certifications use official designation format (T1-T8)
- [ ] Education includes degree, institution, location, and graduation date
- [ ] Manufacturer-specific training listed (Cummins, Caterpillar, Detroit Diesel, Allison)
- [ ] Continuing education and recent training courses included
Final Quality Check
- [ ] Resume reviewed against the specific job posting with keyword-by-keyword comparison
- [ ] No spelling errors (especially in technical terms: "Cummins" not "Cumins," "Caterpillar" not "Catepillar")
- [ ] No personal pronouns (I, me, my) used in bullet points
- [ ] File name is professional: "FirstName-LastName-Diesel-Technician-Resume.docx"
- [ ] Resume has been tested through an ATS parser or checker tool
Tailoring Your Resume for Specific Diesel Mechanic Roles
The diesel mechanic field spans several distinct employer types, and each one has different ATS keyword priorities. A single generic resume will underperform a tailored version every time.
Fleet Maintenance (Trucking Companies) Emphasize Class 8 tractor experience, OTR fleet PM programs, DOT inspection compliance, road service calls, and fleet management software (TMT, Dossier, RTA). Keyword priority: preventive maintenance, DOT annual inspection, air brakes, aftertreatment, fleet availability.
Construction Equipment Lead with heavy equipment makes and models (Cat, Komatsu, Volvo CE, John Deere, Case), hydraulic system expertise, undercarriage service, and field service experience. Keyword priority: hydraulic systems, ground-engaging tools, field service, equipment availability, Caterpillar ET.
Dealership Service Departments Highlight manufacturer-specific certifications and training (Cummins Certified Technician, PACCAR MX Engine Certified, Detroit Diesel Certified). Dealerships use ATS platforms that weight OEM credentials heavily. Keyword priority: manufacturer certifications, warranty repair, technical service bulletins, customer communication.
Transit and Municipal Fleets Stress CNG/LNG alternative fuel experience if applicable, ADA-compliant vehicle maintenance, transit bus platforms (New Flyer, Gillig, NOVA), and union work environment compatibility. Keyword priority: alternative fuels, transit bus, PM inspections, regulatory compliance.
Mining and Energy Focus on large-bore diesel engines (Caterpillar 3500 series, Cummins QSK, MTU), extreme environment operation, MSHA training, and autonomous/semi-autonomous equipment maintenance. Keyword priority: high-horsepower engines, MSHA certification, field maintenance, remote site experience.
Frequently Asked Questions
What ATS systems do fleet operators and construction companies use?
Large fleet operators commonly use Workday, ADP Workforce Now, iCIMS, and Oracle Taleo. Construction firms often use BambooHR, Greenhouse, or JazzHR for smaller operations, and Workday or SAP SuccessFactors for enterprise-level companies. Each platform has different parsing capabilities, which is why adhering to standard formatting practices (single column, no tables, standard headings) provides the broadest compatibility across all systems.
Should I list every ASE certification individually, or is "ASE Master Technician" sufficient?
List both. The ATS may search for individual T-series designations (T2, T4, T6) or the Master Technician designation depending on how the job posting is written. Your certifications section should read: "ASE Master Medium/Heavy Truck Technician (T2-T8)" followed by individual lines for each, including certification numbers and expiration dates. This maximizes keyword matches while also giving the recruiter a quick read of your credential depth [6].
How do I handle gaps in employment on a diesel mechanic resume?
ATS systems flag employment gaps but do not automatically reject candidates for them. The ATRI reports that 61.8% of diesel technicians entered the field without formal training, and career transitions are common [1]. If you have a gap, address it honestly: list relevant training, independent contract work, or personal projects during that period. A gap filled with "Completed ASE T2 and T4 exam preparation; performed freelance diesel repair for local agricultural operations" is far better than an unexplained 8-month void.
Do I need a CDL to be competitive as a diesel mechanic applicant?
A CDL is not universally required, but it significantly strengthens your application. Many fleet maintenance positions require technicians to move vehicles for road tests, repositioning, or emergency road service [8]. A CDL Class A with air brake endorsement removes a hiring barrier and increases your ATS keyword match score on postings that list it as preferred or required. The BLS notes that some employers provide CDL training for hired technicians, but entering with one already in hand gives you an advantage over candidates who would need sponsorship [2].
What is the best way to show diesel experience if I am transitioning from automotive repair?
Focus on transferable technical skills: electrical diagnostics, brake system service, fuel system troubleshooting, HVAC (especially if you have EPA 608 certification), and welding. The ATRI research found that 44% of diesel technicians considered switching to automotive or agricultural equipment fields, indicating that the reverse transition is equally viable [3]. In your professional summary, acknowledge the transition directly: "ASE-certified automotive technician transitioning to diesel fleet maintenance with transferable expertise in electrical diagnostics, brake system service, and preventive maintenance program execution." Then list any diesel-specific training you have completed, even if it is coursework or self-study.
References
[1] American Transportation Research Institute (ATRI). "Addressing the Shortage of Qualified Diesel Technicians." August 2025. https://truckingresearch.org/2025/08/new-atri-research-addresses-shortage-of-qualified-diesel-techs-in-trucking/
[2] U.S. Bureau of Labor Statistics. "Diesel Service Technicians and Mechanics: Occupational Outlook Handbook." https://www.bls.gov/ooh/installation-maintenance-and-repair/diesel-service-technicians-and-mechanics.htm
[3] IdleSmart. "Diesel Technician Shortage: ATRI Reveals the Shocking Truth." 2025. https://idlesmart.com/technician-shortage-guide-2025/
[4] ResumeWorded. "Resume Skills for Diesel Mechanic (+ Templates) — Updated for 2026." https://resumeworded.com/skills-and-keywords/diesel-mechanic-skills
[5] Himalayas. "Diesel Mechanic Resume Examples & Templates." https://himalayas.app/resumes/diesel-mechanic
[6] ASE (Automotive Service Excellence). "Test Series — Medium/Heavy Truck." https://www.ase.com/test-series
[7] Knight Transportation. "Diesel Technician Jobs & Shop Manager Opportunities." https://www.knighttrans.com/shop-careers/
[8] Anderson Trucking Service (ATS Inc). "What Certifications Do I Need as a Diesel Technician?" https://www.atsinc.com/blog/careers/certifications-needed-as-diesel-technician
[9] U.S. Environmental Protection Agency. "Section 608 Technician Certification." https://www.epa.gov/section608/section-608-technician-certification-0
[10] Universal Technical Institute (UTI). "Diesel Mechanic Certifications: A Guide to Diesel Certifications." https://www.uti.edu/blog/diesel/mechanic-certifications
[11] Penske Truck Leasing. "How Penske is Managing the Diesel Technician Shortage." https://www.pensketruckleasing.com/resources/resource-library/diesel-technician-shortage/
[12] Transport Topics (TT News). "Most Diesel Repair Shops Understaffed Last Year, ATRI Finds." https://www.ttnews.com/articles/diesel-tech-shortage-atri
[13] Schneider Jobs. "How to Become a Master Diesel Technician in 4 Steps." https://schneiderjobs.com/blog/how-to-become-master-diesel-technician
[14] Fleet Equipment Magazine. "Diesel Technician Shortage in Trucking Cited in New ATRI Research." https://www.fleetequipmentmag.com/atri-diesel-technician-shortage-in-trucking/
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"Diesel mechanics earn a median wage of $60,640 with 28,500 annual openings, but ATS systems filter out resumes that lack specific keyword formatting",
"Name diagnostic platforms explicitly — Cummins INSITE, JPRO, Caterpillar ET, Detroit DDDL — because 'diagnostic software experience' does not register as a keyword match",
"List each ASE T-series certification individually (T2, T4, T6) in addition to Master Technician status to maximize keyword matches across different job posting formats",
"Quantify every work experience bullet with fleet size, completion rates, downtime reduction percentages, or units serviced to differentiate from generic applications",
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