Senior Engineer

Zaddy Solutions; Oklahoma City (OK); On-site; USD 110,000 - 170,000; Full time

Job summary

Zaddy Solutions seeks a Senior HVAC Product Development Engineer in Oklahoma City to design, optimize, and sustain residential and commercial HVAC products. You will lead end-to-end New Product Development projects, drive agency compliance, and provide cross-functional expertise across manufacturing, sales, quality, and supply chain teams.

You will mentor engineers, apply DFSS/DFMA principles, and develop BOMs and drawings while presenting technical designs to stakeholders and clients.

Qualifications

• Bachelor’s degree in Mechanical Engineering is required; MS preferred.
• 10+ years of product design and project engineering experience.
• Proven track record releasing multiple product families.
• Expertise in HVAC system design, integration, and performance.

Responsibilities

• Lead design, optimization, and sustaining engineering of HVAC products.
• Manage end-to-end NPD projects with timelines and KPIs.
• Drive product qualification, testing, and regulatory compliance.
• Provide cross-functional guidance to manufacturing, quality, sales, and supply chain.
• Prepare BOMs, engineering drawings, PCNs, and present designs.
• Mentor engineers and advance DFSS/DFMA initiatives.

Skills

HVAC design

System integration

Thermodynamics

DFSS

DFMA

DoE

Laboratory testing

Regulatory compliance

Education

Bachelor's in Mechanical Engineering

MS preferred

Tools

HVAC simulation tools

Programming

MRP software

Job description

Position Overview

We are seeking a Senior HVAC Product Development Engineer to lead the design, optimization, and sustaining engineering of our residential and commercial HVAC product families. In this technical leadership role, you will manage end-to-end New Product Development (NPD) projects, drive agency compliance, and provide cross-functional expertise across manufacturing, sales, quality, and supply chain teams.

Key Responsibilities

• Product Development & Engineering: Design, optimize, and qualify residential and commercial HVAC systems using advanced simulation tools, analytical methods, and experimental techniques.

• Project Leadership: Manage individual NPD projects and special engineering requests across the full product lifecycle, tracking project timelines, costs, and key performance indicators (KPIs).

• Qualification & Compliance: Lead product qualification programs and interface with regulatory and testing agencies to maintain full industry compliance.

• Cross-Functional Support: Serve as a technical subject matter expert providing guidance to manufacturing, supply chain, quality, and sales/marketing teams.

• Documentation & Technical Execution: Prepare bills of materials (BOMs), engineering drawings, product change notifications (PCNs), and present technical designs to internal stakeholders and external clients.

• Mentorship & Process Improvement: Guide less experienced engineers, lead data analysis initiatives, and apply Design for Six Sigma (DFSS) and Design for Manufacturing and Assembly (DFMA) principles.

Education & Experience

• Education: Bachelor’s degree in Mechanical Engineering or a related field required; Master’s degree (MS) preferred.

• Experience: 10+ years of product design and project engineering experience preferred, with a proven track record of successfully releasing at least two product families.

Technical Expertise

• In-depth knowledge of residential/commercial HVAC system design, component integration, and system interactions.

• Proficiency in thermodynamics, fluid mechanics, heat transfer, heat exchanger design, aeroacoustics, and structural analysis.

• Experience with controls, sequence of operations, and electrical wiring.

• Hands-on laboratory testing expertise, including data acquisition, instrumentation, calibration, Design of Experiments (DoE), and uncertainty analysis.

• Expert understanding of NPD processes, DFSS, DFMA, and industry compliance standards.

Software & Tools

• Proficient in state-of-the-art HVAC simulation tools and Microsoft Office Suite.

• Familiarity with computer programming languages and database/MRP software.

Certifications & Licensing

• EPA Section 608 Refrigerant Certification (Universal) is a plus.

Core Competencies

• Technical Leadership & Judgment: Strong analytical and problem-solving skills; ability to translate complex conceptual designs into tangible, market-ready solutions.

• Communication & Collaboration: Excellent written and verbal communication skills to effectively represent Engineering in cross-functional activities and guide project teams.

• Business Acumen: Ability to align engineering solutions with customer needs, market strategies, and supply chain dynamics.

• Adaptability: Open to new ideas, flexible in fast-paced environments, and dedicated to continuous professional development.