Sales and Proposals Engineer - Aftermarket Sales

Why Work at Clarke Our work is guided by our purpose: creating an energy-resilient world for a better future. This purpose embodies the legacy we bring, with more than 100 years as the global leader in energy resilience, delivering solutions critical to sustain and improve life.

Our teams have the opportunity to provide a critical resource – energy – that ensures safety, security, and independence for people around the world. Our team members are focused on pushing boundaries, continuing to innovate in an ever-changing landscape, and keeping up with the pace required to create solutions for today’s world demands.

Our product range includes engines, generators, power conversion, UPS systems, EV components and electrification solutions, microgrid controls and management, and clean energy solutions that serve a broad spectrum of OEM, residential, industrial, and commercial customers. At Rehlko, you have the freedom to identify, create, and deliver solutions – large and small – that help people and communities thrive in the moments that matter.

At Rehlko, our team members are the essential energy that powers our organization’s success. We are committed to fostering a safe and sustainable work environment where safety is everyone’s responsibility. We empower every team member to actively participate in our Zero Is Possible safety culture by encouraging open communication, proactively reporting hazards, following protocols, and suggesting improvements. Join us in creating an energy resilient world for a better future!

What We Offer At Rehlko, our Total Rewards programs are designed to accelerate growth, energize performance, and support a culture of inclusion at every stage of life and work. We offer total rewards that are easily understood, recognize results, enable career mobility, and reflect our commitment to valuing diverse needs in a fast-moving world. We provide:

Competitive compensation and benefits

Work-life flexibility

Recognition and rewards

Development and career opportunities

A safe and inclusive workplace

Why You Will Love this Job Sales & Proposals Engineer – Aftermarket Sales

Location:

Knowsley, Liverpool (with occasional UK travel as required)
Are you a technically minded sales professional with a passion for developing high‑quality customer proposals?

Clarke Energy is seeking a Sales & Proposals Engineer to support the growth of our aftermarket business by preparing compelling, accurate and commercially competitive proposals that meet customer requirements. This is a key customer‑facing role, working closely with engineering, service and commercial teams to convert opportunities into winning bids.

You will play a central part in shaping our tender responses, identifying upgrade opportunities and ensuring our customers receive clear, professional and technically robust proposals.

Job Purpose To consolidate service offers, technical information and upgrade opportunities into clear, accurate and competitive bids for Clarke Energy’s aftermarket product portfolio.

The majority of your time will be spent attending customer meetings, clarifying technical requirements, generating conversions/modifications/upgrades (CMU) opportunities, preparing detailed proposals and maintaining accurate commercial data.

What You’ll Be Responsible For Customer engagement and opportunity development

You will:

Attend customer meetings to understand technical needs, identify opportunities and position Clarke Energy aftermarket solutions.

Maintain proactive communication with customers regarding proposal progress, clarifications and next steps.

Preparing high‑quality proposals and tenders

You will:

Prepare clear, accurate and detailed proposals for conversions, modifications and upgrades with minimal support.

Build and deliver service tenders and bespoke scope packages for the Clarke Energy product range.

Develop end‑to‑end proposals including scope development, competitive pricing, documentation and submission.

Coordinate responses to Invitation to Tender (ITT) documents, ensuring high‑quality and timely submissions.

Internal collaboration and information management

You will:

Work closely with engineering, service delivery, projects…