Proposal Engineer – Pumps & Water Treatment (Remote, Part‑Time)

About the role

We are looking for a freelance Proposal Engineer to develop accurate, competitive proposals for pump and water‑treatment systems. Working remotely, you will translate client requirements into technical designs and cost estimates while supporting the sales process.

Key responsibilities

• Analyze client specifications and design optimal pump and water‑treatment solutions, including equipment selection and system layouts.
• Prepare detailed technical proposals with cost estimations and commercial terms.
• Conduct site visits and client meetings to gather data and present solutions.
• Source and negotiate pricing with suppliers and subcontractors.
• Compile complete bid packages and coordinate with internal teams during weekly virtual meetings.
• Hand over awarded projects to execution and project‑management teams.

Required profile

• Minimum three years of experience in proposal, application engineering or estimation within pumps, valves, or water/wastewater treatment.
• Bachelor’s degree in Mechanical, Chemical, Environmental Engineering or a related technical field.
• Willingness to travel regionally or nationally for client visits.

Required skills

• Centrifugal pumps
• Hydraulics
• Piping systems
• Water filtration
• Reverse osmosis
• Chemical dosing

What we offer

• Fully remote work environment with flexible hours.
• Opportunity to work on diverse industrial water projects.
• Collaborative team culture with regular leadership check‑ins.