A sales engineer recruitment agency finds people who sell a manufacturer’s products and understand how those products work. Three job titles cover most roles. An internal sales engineer works from the office, handling enquiries, quotations and technical questions by phone and email. A field sales engineer visits customers on site, manages accounts and wins new business across a territory. An applications engineer works out how a product fits a customer’s process, supporting sales with specifications, trials and demonstrations.
This guide is written for hiring managers, HR teams and engineers. It explains what each role does, which one suits your business, and the mix of engineering and commercial skill to look for. The point we make throughout is simple: the selling can be taught, but the engineering background is the hard part to find.
Sigma Recruitment is a manufacturing recruitment agency based in Cardiff. We have worked among the engineering recruitment agencies serving UK industry since 2005, and we currently run live sales engineer and business development adverts.
(Source: Sigma Recruitment house line)
What a sales engineer does for a manufacturer
A sales engineer sits between your engineering team and your customers. Their job is to turn a customer’s problem into an order for the right product, specified correctly. That means they need to understand drawings, tolerances, materials, controls or whatever your product depends on.
Typical duties include:
- Responding to enquiries and preparing technical quotations.
- Visiting customer sites to understand processes, equipment and constraints.
- Recommending products, options and configurations that will actually work.
- Working with design, production and service teams to confirm what can be delivered and when.
- Managing existing accounts and finding new customers.
- Feeding market and customer information back to the business.
A good sales engineer protects your margins and your reputation. They stop the wrong product being sold, they reduce returns and warranty claims, and they give customers confidence that someone understands their application. A poor one can win orders that your factory then struggles to deliver.
Internal, field or applications engineer: which hire
The right title depends on where the gap is in your sales process. Many manufacturers need more than one of these roles, and the boundaries vary from company to company.
Internal sales engineer
Hire an internal sales engineer when enquiries are coming in and you need someone to convert them quickly and accurately. The role suits people who are organised, comfortable with detail and good on the phone. It is often a route into sales for engineers who have worked in technical support, estimating or the drawing office.
Field sales engineer
Hire a field sales engineer when you need to grow accounts or open new markets. The role involves travel, independent working and responsibility for a territory or a set of customers. Candidates need the technical credibility to hold a conversation with a customer’s engineers and the commercial drive to close the sale.
Applications engineer
Hire an applications engineer when the sale depends on proving a product will work in a specific process. These roles lean more towards engineering than selling. They suit people who enjoy problem solving, testing and explaining solutions, and who are happy to support a sales team rather than own the target.
If you are unsure which role you need, start with the problem. Slow quotations point to internal sales. Flat order books point to field sales. Lost deals on technical grounds point to applications support.
The skills mix: an engineering qualification plus commercial ability
The strongest sales engineers combine two things that rarely come together: a genuine engineering foundation and the ability to build relationships and close business.
The engineering side
Most manufacturers look for a recognised engineering qualification or an apprenticeship in a relevant discipline, backed by hands-on experience. The discipline should match your product. A company selling pumps, valves or machined parts will usually want a mechanical background. A company selling controls, robotics or integrated systems will usually want automation or electrical experience. Our mechanical engineer recruitment agency guide and automation engineer recruitment agency guide cover those backgrounds in more detail.
The commercial side
Commercial ability is about more than confidence. Look for people who listen, ask good questions, follow up reliably and can explain technical points to buyers who are not engineers. They should be comfortable negotiating on price and lead times, and honest enough to say when a product is not the right fit.
Why the engineering is harder to find
Sales technique can be developed through training, coaching and experience. An engineering foundation takes years of study and practical work. That is why many manufacturers find it easier to hire an engineer with the right attitude and teach them to sell than to teach a salesperson enough engineering to be credible with technical buyers.
Salary and commission
We do not publish a salary band or a standard commission structure on this page. Pay for sales engineers depends on the role, the product, the territory and how much of the package is linked to results. Internal, field and applications roles are often structured differently, with field roles more likely to carry a target linked to bonus or commission.
When you contact us with a vacancy, we will talk through current pay expectations for the role you are hiring, so that your offer is realistic and competitive.
Why use a specialist sales engineer recruitment agency
General sales recruiters tend to screen for selling. A specialist screens for the engineering first, because that is where most hires succeed or fail. We understand the difference between a candidate who can talk about a product and one who understands how it is made and applied.
Working with a specialist helps you to:
- Define the role clearly, including whether you need internal, field or applications support.
- Reach engineers who are open to a move into sales but are not actively applying for sales jobs.
- Test technical knowledge before candidates reach your interview room.
- Present candidates whose discipline matches your product.
We recruit across manufacturing, including the sectors covered on our automotive recruitment agency and electronics manufacturing recruitment pages. You can also browse our other job guides for related roles.
Questions about hiring sales engineers
What does a sales engineer do?
A sales engineer sells a manufacturer’s products using technical knowledge. They answer enquiries, prepare quotations, visit customers, recommend the right product for each application and work with internal teams to confirm what can be delivered. Their engineering background lets them understand customer problems properly, which means fewer wrong orders, fewer returns and stronger long-term relationships with technical buyers who expect to speak to someone who understands their process.
What is the difference between an internal and a field sales engineer?
An internal sales engineer is office based. They handle incoming enquiries, quotations, order processing and technical questions by phone and email. A field sales engineer spends much of their time on the road, visiting customer sites, managing accounts and winning new business across a territory. Internal roles reward accuracy and organisation. Field roles reward independence, relationship building and the drive to grow sales.
Should we train an engineer to sell or a salesperson to be technical?
In most manufacturing businesses, training an engineer to sell works better. Selling skills can be built through coaching and experience, while an engineering foundation takes years of study and practical work. Look for engineers who communicate well, enjoy dealing with people and are curious about customers. A salesperson without that foundation may struggle to earn credibility with technical buyers and may promise things your factory cannot deliver.
What qualifications should a sales engineer have?
Most manufacturers look for a recognised engineering qualification or an engineering apprenticeship, followed by practical experience in a relevant discipline. Match the qualification to your product: mechanical for components and machinery, electrical or automation for controls and systems. Formal sales qualifications are less important than proven communication skills, sound product knowledge and a record of working directly with customers, whether in sales, support or applications.
How much does a sales engineer earn in the UK?
Pay varies with the type of role, the product, the territory and how much of the package is linked to results. Field roles are more likely to include bonus or commission against a target. We do not publish figures on this page because they depend on the detail of each vacancy. Contact us with your role and we will talk through current pay expectations.
How do we assess a sales engineer at interview?
Test both sides of the role. For the engineering, ask candidates to explain how a product works, read a drawing or talk through a technical problem they solved. For the commercial side, ask for an example of a sale they won or a customer they kept, and run a short role play based on a real enquiry. Listen for questions they ask, not just answers they give.
Which sectors do you recruit sales engineers for?
We recruit across UK manufacturing and engineering, and we currently have live sales engineer and business development adverts. Our sector pages explain how we work in areas such as automotive and electronics manufacturing. The best way to find out whether we can help with your vacancy is to send us the details, including your product, the type of role and the location.
