Mechanical Designer

R&D Designer - Positive Displacement Pumps Position Summary

The R&D Designer - Positive Displacement Pumps will support the design, development, improvement, and release of positive displacement pump products and related equipment. This role will be responsible for creating high-quality 3D models, detailed 2D manufacturing drawings, assemblies, bills of material, and release documentation for pump components and systems used in demanding industrial and oilfield applications.

The designer will work closely with engineering, manufacturing, supply chain, service, and operations teams to turn concepts into practical, manufacturable, and reliable pump designs. This position requires strong mechanical design capability, attention to detail, and an understanding of how tolerance, material selection, fit, finish, and assembly practices directly affect pump performance, durability, and field serviceability.

R&D is an iterative process, and this role will be expected to support rapid concept development, prototype revisions, production updates, and continuous improvement efforts. The ideal candidate is practical, detail-oriented, and able to balance performance, manufacturability, cost, and serviceability.

Key Responsibilities

* Develop complex 3D models and assemblies for positive displacement pumps and related components.

* Create detailed manufacturing drawings for pump components such as fluid ends, power ends, crankshafts, connecting rods, cross heads, plungers, packing assemblies, valves, seats, retainers, covers, housings, manifolds, and related structures.

* Apply GD&T principles to communicate critical tolerances, fits, datums, surface finishes, and inspection requirements.

* Support tolerance stack-up reviews for critical pump assemblies and highly loaded components.

* Create and maintain bills of material for pump assemblies, subassemblies, and serviceable components.

* Support new product development, prototype builds, design iterations, and production release packages.

* Update existing pump drawings and models to improve manufacturability, reduce cost, reduce weight, improve reliability, and simplify assembly or field service.

* Work with engineers to evaluate design tradeoffs related to pressure rating, flow rate, fatigue life, sealing performance, bearing loads, fastener selection, and service intervals.

* Collaborate with NOV manufacturing facilities and suppliers to ensure designs can be machined, fabricated, inspected, assembled, and serviced efficiently.

* Support design standardization across pump product lines, including common components, drawing practices, materials, fasteners, and modeling methods.

* Review as-built feedback, field issues, manufacturing concerns, and service observations to support continuous product improvement.

* Assist with engineering change requests, drawing revisions, and controlled product release documentation.

* Maintain organized 3D models, assembly trees, configurations, part numbers, revisions, and drawing files.

Pump Design Focus Areas

This role may support design and documentation for:

* High-pressure positive displacement pumps

* Reciprocating pumps

* Triplex and quintuplex pump assemblies

* Fluid end components and consumables

* Power end components and structures

* Pump skids, bases, guards, covers, and mounting structures

* Lube systems and auxiliary pump systems

* Packing, sealing, valve, and seat arrangements

* Manifolds, suction/discharge connections, and pressure-containing components

* Service tooling, lifting fixtures, and assembly aids

* Field retrofit kits and production improvement packages

Required Education, Skills and Experience

* High School Diploma or Equivalent and 2-4 years of related experience.

* Proficiency with Solid Works PDM for 3D modeling, assemblies, configurations, and detailed drawings.

* Proficiency with AutoCAD or similar 2D drafting software.

* Experience creating drawings for machined components with tight tolerances and critical fits.

* Strong understanding of mechanical drafting, GD&T, tolerance stack-up, datums, surface finish, and inspection requirements.

* Ability to design and document parts for CNC machining, fabrication, welding, coatings…