Mechanical Design and Sales Engineer (Permanent)

Role: Senior Sales Engineer – MEP (Mechanical Bias) Location: London, UK

Role type: On-site / Full time / Permanent

Salary: £75,000 - £90,000

We’re working with a leading data centre specialist delivering full lifecycle solutions across design, build, and managed services.

They’re looking for a Senior Sales Engineer with a strong mechanical bias to sit between the client, commercial team, and delivery function, someone who can take complex requirements and turn them into technically sound, commercially viable solutions.

This is not a pure sales role. It’s a technical solutioning position, heavily focused on mechanical systems within MEP environments, supporting bids, shaping designs, and driving winning strategies.

What you’ll be doing

Leading the technical solutioning of bids and proposals, with a strong focus on mechanical systems

Interpreting client requirements and translating them into practical, buildable MEP solutions

Supporting tenders from early engagement through to final submission

Working closely with supply chain, design teams, and commercial leads to build accurate, competitive proposals

Developing cost models, estimates, and technical submissions aligned to project scope

Identifying risks, value engineering opportunities, and efficiencies within designs

Acting as the technical authority during the bid phase, particularly across mechanical packages

Contributing to bid-winning strategies, ensuring clear differentiation against competitors

Leading technical reviews and supporting internal governance processes

Managing handover into delivery teams, ensuring full understanding of design intent, scope, and assumptions

Supporting project teams post-award as a Subject Matter Expert (SME) where required

Building strong relationships with clients, partners, and internal stakeholders

What you’ll need

Strong background in MEP environments with a clear mechanical bias

Experience in data centres, mission-critical, or complex infrastructure projects

Proven experience in a Sales Engineer, Bid Engineer, Estimator, or Pre-Construction role

Strong understanding of mechanical systems such as:

HVAC (CRAC/CRAH, chilled water systems, DX cooling)

Cooling strategies for data centres (air-cooled, liquid, containment)

Pipework, pumps, and associated plant systems

Ability to interpret technical specifications and produce solution-led proposals

Commercial awareness, including costing, margins, and risk identification

Experience working with contractors, integrators, or specialist providers

Strong stakeholder management and communication skills

Comfortable working across multiple bids and deadlines

Nice to have

Experience working on hyperscale or colocation data centre projects

HND or Degree in Mechanical Engineering (or similar/demonstrable experience)

Exposure to both mechanical and electrical packages (mechanical lead preferred)

Relevant qualifications in mechanical engineering or building services

Knowledge of commissioning, IST, or project delivery phases