Mechanical Engineering Technician
- Location
- El Cajon, CA
- Listed
- Today
About the role
Our culture is rooted in a shared vision - to help keep the world’s most precious resource safe - and in the core values that guide us in pursuing this vision and delivering on our mission to clients.
We provide the highest quality liquid storage design and construction services at the best long-term value with an unrivaled customer experience. We have built over 3,500 pre-stressed concrete liquid storage tanks over the past 90 years around the country and world, as a result we have become the leader in the industry when it comes to quality and innovation.
DN is seeking a skilled and innovative Mechanical Engineering Technician to design, develop, diagnose, and test equipment, including tools, engines, and machines. Working cross-functionally across multiple teams to maintain and improve the performance of current equipment; bring new products from concept to production, optimize mechanical systems, and work hands-on to solve engineering problems. If you have a desire and passion to work with machines, work through complex issues, and own machine engineering for all equipment across the organization, we invite you to apply!
Equipment Performance & Enhancements
- Design and develop mechanical, electrical and hydraulic systems and components using CAD tools (SolidWorks, AutoCAD), including engineering calculations, FEA simulations, and creation of technical drawings, specifications, sketches, and purchase requests.
- Prototype, test, validate, and troubleshoot mechanical, electrical, and hydraulic systems, including pumps, motors, valves, cylinders, and control systems, ensuring performance, safety, reliability, and manufacturability.
- Collaborate cross-functionally to integrate systems and support development of equipment, machinery, and measurement instruments.
- Apply deep technical knowledge in hydraulics, electronics, mechanics, engines, motors, prestressing, mechanics of materials, PLCs, and basic coding.
- Oversee documentation and cost evaluation, including operations manuals, maintenance schedules, fabrication/assembly planning, and estimation of labor, materials, and installation/testing costs.
Field Operations Support
- Support field equipment troubleshooting.
- Collaborate with equipment Operators to support operations.
- Provide hands-on support and assistance of field staff on the job as needed.
- Analyze performance results, make recommendations for improvements, troubleshoot issues.
- Coordinate field equipment set up and calibration for optimal operation.
Equipment Maintenance Support
- Assist the maintenance department in coordination with equipment/parts suppliers
- Specify maintenance schedule for machines and equipment.
- Conduct regular inspections and maintenance of machinery and equipment to ensure optimal operation.
- Troubleshoot mechanical issues and diagnose problems in machinery and related systems.
- Recommend the repair or replace worn or malfunctioning parts and equipment.
- Run performance tests and interpret the results to make effective recommendations to fix faulty or broken equipment.
- Set up and conduct tests of complete units and components under operational conditions to investigate proposals for improving equipment performance.
- Travel to project sites as needed to assist in observation and troubleshooting of specialty equipment.
Requirements & Qualifications
- Bachelors degree in Mechanical or Industrial Engineering.
- Familiarity with hydraulic control systems, PLC, and electrical controls and operation.
- 2+ years experience in a Mechanical Engineering, Mechanical Technician, or similar.
- Ability to troubleshoot hydraulic pumps, motors, valves, cylinders, and control systems.
- Ability to read and interpret electrical wiring diagrams.
- Knowledge of PLC systems and electrical charging systems, ability to diagnose problems.
- Ability to travel as needed.
Total Rewards
Our Total Rewards offerings are designed to invest in our employees and their families, including:
- Competitive base compensation plus eligibility for DN's annual incentive bonus program
- 401(k) retirement plan consisting of a 100% employer match on the first 6% of employee contributions and an additional 3% Safe Harbor company contribution
- Medical coverage effective on date of hire, with DN covering 80%-85% of premiums depending on plan selection
- Dental coverage effective on date of hire, with DN covering 75% of premiums
- Voluntary vision coverage effective on date of hire
- Flexible Spending Account options for eligible medical, dental and dependent-care expenses
- Company-paid life insurance, accidental death & dismemberment coverage, and long-term disability coverage
- Paid time off starting at 16 days annually, increasing with tenure, plus 9 paid holidays each year
- Half-day Fridays between July 4 and Labor Day
- Paid parental leave for birth mothers and spouses or committed partners
- Employee Assistance Program available at no cost to employees and household members for work/life support
- Tuition reimbursement
- Gym reimbursement
- Employee referral incentive program
- Career growth, internal mobility and professional development opportunities within a stable, purpose-driven company
Equal opportunity and legal notices
DN is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class. All employment is decided on the basis of qualifications, merit, and business need.
From Dn's careers page, first listed on Rolev.ai on November 12, 2026. Rolev.ai is not the employer.
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Common questions
Where is the Mechanical Engineering Technician job at Dn located?
This Mechanical Engineering Technician position at Dn is located in El Cajon, CA. Always check Dn's application page for specific state eligibility or relocation policies.
How do I apply for the Mechanical Engineering Technician position at Dn?
This listing links directly to Dn's Lever application page. You can apply directly on Dn's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Lever application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.