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Engineering Excellence, Every Project, Every Time






When your next step is just as important as your ​first!​

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About us

Established in 2023, ​ThreeForty Engineering is a ​Mechanical Engineering ​Design firm that offers ​innovative and ​comprehensive solutions to ​various industries. If you ​require an Engineer, we are ​always ready to assist!

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Meet the team

Jacob Payne, PE

Welcome toThreeForty Engineering, where passion meets professionalism! I'm Jacob Payne, the creative mind behind this venture. With a profound love for engineering, I have dedicated myself to improving this world through my ideas, solutions, and engineering abilities. My journey to become a Professional Engineer has been shaped by years of hands-on experience, continuous learning, and an unyielding commitment to excellence.


My Story


Growing up, I was always fascinated by how the world works! Anything that can be built, can be broke. Anything that can be broke, can be fixed. It blew my mind to learn there is an entire science dedicated to this idea. This fascination soon turned into a deep-seated passion, driving me to explore the intricacies of mechanical engineering. I graduated from Texas Tech University with a Bachelor of Science in Mechanical Engineering. Through years of dedication and hard work, I honed my engineering abilities, gaining valuable insights and expertise along the way. Eventually, this path led me to pursue the title of Professional Engineer.


I am elated to say I am a Licensed Professional Engineer in the great state of Texas with the ability to provide solutions to the entire state of Texas. I have the unique ability to rapidly serve my local area and provide solutions to the greater DFW Metroplex!


What Sets Me Apart


With over a decade of real-world engineering experience, I am able to offer expert guidance in design, analysis, and optimization. I ensure each project is efficient, cost-effective, and sustainable. I take pride in my ability to think outside of the box to provide solutions that fully meet your requirements!


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Services Provided

ThreeForty Engineering is here to meet your Engineering needs. ​With vast experience mechanical design and analysis, we are ​poised to provide successful solutions!


    • Electronic Packaging
    • Level 1 Thermography
    • 3D CAD/ 2D Drafting
    • GD&T
    • Design and Testing to MIL-STD 810 and RTCA-DO/160 ​environments
    • Working Knowledge of VITA and SOSA standards
    • Energy/Work/Power
    • Statics/Dynamics/Vibration
    • Strength/Mechanics of Materials
    • Joints/Fasteners/Welds
    • Beam/Column Design
    • Steady-State/Transient Thermal
    • Air/Fluid Flow CFD
    • Failure Analysis
    • Product Prototypes
Handwritten Quadratic Formula
Handwritten Midpoint Formula
Handwritten Standard Form Equation
Handwritten Tangent Formula
Physics Formula Hand Drawn
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Lets talk

Click a link below to get in touch with ​ThreeForty Engineering and see how our ​solutions are a perfect match for your ​unique requirements. Expect nothing but ​the utmost professionalism, quality, and ​integrity.

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Threeforty engineering, pllc

“Whatever you do, work at it with all your heart, as working for the Lord, not for human masters...” - Colossians 3:23


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