Demo

Mechanical Engineer III

ONICON Incorporated
Largo, FL Full Time
POSTED ON 1/6/2026
AVAILABLE BEFORE 2/4/2026
Come Join Our Team

We take pride in building quality products—and enriching the lives of those who make it possible. As a growing company, we invest in our people, our processes, and the technology that drives our success. We believe that when our team members thrive, our company thrives. We offer opportunities for career growth in a supportive, hands-on environment where your contributions make a difference every day. Most importantly, you’ll be part of a positive, team-oriented culture where autonomy is earned, hard work is rewarded, and every employee’s voice matters. Come grow with us and help shape our future!

Who We Are

Since 1987, ONICON Incorporated has been a trusted leader in flow and energy measurement solutions for hydronic heating and cooling systems. For nearly four decades, we’ve combined engineering expertise with a commitment to quality, delivering reliable instruments that help our customers optimize system performance.

Our comprehensive portfolio includes electromagnetic, turbine, ultrasonic, thermal, and vortex flow meters, along with precision BTU (energy) meters that seamlessly integrate with the technology best suited to your application. Every product is wet-calibrated, fully programmed, and ready to install, ensuring simplified setup and exceptional accuracy right out of the box.

Supported by a nationwide network of skilled application engineers and industry-focused manufacturer representatives, we provide hands-on expertise and personalized guidance for every project. Above all, ONICON is driven by a service-first mindset — we take pride in delivering solutions and support that exceed customer expectations.

What We Offer

  • Competitive salaries
  • 10 paid holidays each year, vacation, sick time and volunteer time
  • 401(k) with employer match – immediately vested
  • HSA, pre-tax health savings program
  • Flexible work schedules that promote a healthy work-life balance
  • Top-tier medical, dental, and vision insurance
  • Employer-paid life insurance
  • Pet Insurance
  • Tuition Reimbursement
  • Scholarship Programs

Job Summary

We are seeking a highly motivated and skilled Mechanical Engineer III to join our team at ONICON. The ideal candidate will be responsible for the mechanical design and testing of various new products under development as well as mechanical improvement for existing products.

Essential Functions

  • Designing and testing mechanical prototypes for electro-mechanical devices including enclosures and flow bodies.
  • Creating & updating models, assemblies and detailed drawings.
  • Performing structural and fluid flow analysis using FEA/CFD tools.
  • Evaluate designs to identify opportunities for simplifying components, substituting materials, and optimizing performance to reduce costs.
  • Performing a variety of testing to qualify new mechanical designs.

Other Responsibilities

  • Managing Engineering Change Orders (ECOs)
  • Inspecting new parts or designs for compliance with prints or standards
  • Other duties as assigned.

Qualifications

  • Education Requirements:
    • Bachelor’s degree in Mechanical Engineering or related Engineering Field.
  • Minimum skills requirements:
    • Minimum of 3 years of relevant experience (5 years preferred) in mechanical design.
    • 3D design experience with SolidWorks or similar CAD software.
    • Experience designing for a variety of metal and plastic fabrication techniques.
    • Hands-on experience performing stress and/or fluid flow analysis using FEA/CFD tools.
  • Preferred Skills:
    • Experience working in a manufacturing environment.
    • Experience working with electromechanical devices.
    • Experience with Product Data Management systems (SolidWorks PDM preferred).
    • Solid understanding of Geometric Dimensioning and Tolerancing (GD&T).
    • Experience working with a multidisciplinary team.
    • Experience working in Agile development environments; Scrum Master certification (CSM or equivalent) is a plus.
  • Traits Requirements:
    • Curious
    • Collaborative
    • Thorough
    • Responsive
    • Detail-Oriented
    • Accountable
    • Dependable
Physical Demands

  • The employee may be occasionally required to travel nationally to support testing efforts or visit customer sites. Travel may involve overnight stays, air travel and/or driving a personal vehicle. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential travel functions required by this role.
  • While performing the duties of this job, the employee is regularly required to:
  • Stand, walk, bend, reach, and lift or move items (typically up to 50 lbs).
  • Use hands and arms to handle or operate tools and equipment.
  • Specific vision abilities required by this job include close vision, distance vision, and depth perception.

Commitment To People And Planet

TASI Measurement is committed to fostering a sustainable and socially responsible environment. We believe that our success is not only measured by financial gains but also by the positive impact we have on our employees, communities, and the world around us.

As part of our commitment to people, we strive to provide a supportive and inclusive workplace where every individual is valued, respected, and given equal opportunities to thrive. We prioritize the well-being, safety, and personal development of our employees, recognizing that they are the engine driving our success.

Salary.com Estimation for Mechanical Engineer III in Largo, FL
$88,461 to $106,482
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Mechanical Engineer III?

Sign up to receive alerts about other jobs on the Mechanical Engineer III career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$108,186 - $133,193
Income Estimation: 
$134,236 - $174,128
Income Estimation: 
$132,162 - $161,329
Income Estimation: 
$85,954 - $106,408
Income Estimation: 
$106,299 - $135,354
Income Estimation: 
$108,186 - $133,193
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at ONICON Incorporated

  • ONICON Incorporated Largo, FL
  • Come Join Our Team We take pride in building quality products—and enriching the lives of those who make it possible. As a growing company, we invest in our... more
  • 7 Days Ago

  • ONICON Incorporated Largo, FL
  • Come Join Our Team We take pride in building quality products—and enriching the lives of those who make it possible. As a growing company, we invest in our... more
  • 7 Days Ago

  • ONICON Incorporated Largo, FL
  • Come Join Our Team We take pride in building quality products—and enriching the lives of those who make it possible. As a growing company, we invest in our... more
  • 7 Days Ago

  • ONICON Incorporated Largo, FL
  • Come Join Our Team! We are a growing company that invests in our people, our products, and our technology. We offer real opportunities for career growth. O... more
  • 10 Days Ago


Not the job you're looking for? Here are some other Mechanical Engineer III jobs in the Largo, FL area that may be a better fit.

  • Kemco Systems Clearwater, FL
  • Job Summary CECO Environmental is a global leader in providing sustainable solutions for industrial air, water, and energy transition. Since 1966, we’ve be... more
  • 17 Days Ago

  • Spring Engineering, Inc. Tarpon Springs, FL
  • Mechanical Engineer – Competitive Salary Benefits – Tarpon Springs, FL Ready to lead projects, shape your future, and live minutes from Florida’s Gulf Coas... more
  • 7 Days Ago

AI Assistant is available now!

Feel free to start your new journey!