Presales · Sales Engineer
Presales Engineer
What is presales?
- The role responsible for technical validation before the contract
- The AE answers 'why buy,' presales answers 'does it work in our environment'
- Document the engagement criteria and validation success criteria
Many organizations see presales as support staff who give a demo whenever a sales rep calls. Used that way, your most expensive technical people end up running low-probability meetings. The real job of presales is to make the customer technically confident. While the sales rep answers 'why should we buy,' presales answers 'will it really work in our environment.' You have to win the technical validation to reach price negotiation, so for complex products, half of the win is decided in this role.
The work falls into five parts: understanding technical requirements, demos tailored to the customer’s situation, validation in the real environment (PoC), answering the technical items in the RFP and writing the proposal, and handing off to the implementation team after the win. Of these, understanding requirements comes first. A demo given without knowing who the customer is and what they are trying to solve ends up as a feature list. Before the demo, have presales hold a 20–30 minute call directly with the customer’s practitioner to confirm the current environment and the three scenarios they must see, and the quality of the demo changes.
The division of work with sales reps is set in writing. The sales rep, as owner of the opportunity, is accountable for the relationship, the purchasing process, and pricing, while presales is accountable for technical requirements and validation results. Which opportunities get presales support is decided by qualification criteria. Common ones are whether budget and timeline are confirmed, whether a technical decision-maker will attend, and whether the customer has agreed to the success criteria for validation. Many companies staff one presales engineer per three or four sales reps, though it varies with product complexity. Training managers should treat sales skills such as questioning, presenting, and objection handling, more than technical knowledge, as the area to reinforce for this role.
Where things go wrong in practice is over-promising. A single "Yes, it can do that too" said in the heat of closing becomes a dispute at implementation. The trust this job earns comes from separating what works out of the box, what works with configuration, and what needs development, and putting it on record. Conversely, a validation started without success criteria never ends and turns into free consulting. And if evaluation and compensation are tied only to sales, presales is driven by the number of requests handled rather than by wins. Link part of win results to presales evaluation so the two roles pull in the same direction.
John KimAuthor of B2B Marketing Design and CEO of Nanum Consulting
Jaehyuk ParkHands-on instructor in B2B technical sales and AI-driven sales strategy| Category | AE (Account Executive) | Presales · Sales Engineer |
|---|---|---|
| Question it answers | Why buy | Does it work in our environment |
| Scope of responsibility | Relationship · purchasing process · pricing · contract | Technical requirements · demos · validation · technical proposal |
| Who you mainly deal with | Executives · procurement · business owners | Technical owners · hands-on users |
| Performance metrics | Bookings · pipeline | Technical validation pass rate · validation time |
| After the win | Closing the deal and maintaining the relationship | Hand over requirements and commitments to the implementation team |
The title took hold at companies that sell technical products, with no single originator. As products grew complex and sales reps alone struggled to answer technical questions, a role dedicated to pre-contract technical support split off. Depending on the company, it is called sales engineer, solutions engineer, solutions consultant, or technical sales. Whatever the name, the job is the same: owning technical validation before the contract is signed.
Consider a hypothetical case. Company A, which sells factory management software, has 12 sales reps and 3 presales engineers. Last year presales gave 186 demos, but only 22 of those opportunities were won, and 6 of 14 validations dragged on for more than three months.
- In October, the head of sales went back over 186 demos and found that 71 were meetings where neither budget nor a technical decision-maker had been confirmed. The presales team lead said, "We were set up to go whenever we were called."
- The head of sales wrote down three criteria for deployment: confirmed budget and timeline, a technical decision-maker attending, and a 20-minute pre-call between the presales engineer and the customer’s practitioner before the demo.
- In one food-factory deal, when the presales lead held a pre-call, a junior member of the production team said, "Never mind the screens. I just want to see whether data from our legacy equipment actually comes through."
- The presales lead dropped the standard 40-minute demo and prepared only a 15-minute scene showing integration with legacy equipment. Validation began only after the customer signed off on the success criterion: 'collect data from 3 machines within 2 weeks'.
- During validation, when the customer asked about a custom-report feature, the manager answered, "It isn’t built in, but configuration gets you up to 8 types; beyond that it’s development," and put it in the meeting minutes.
- The following year, demos fell from 186 to 104, yet wins rose from 22 to 31, and average validation time dropped from 11 weeks to 4 weeks.