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Clients hiring a developer are checking two things: can you build this stack, and are you available. A signature can answer both in four lines.
Developers tend to underinvest in the signature on the reasonable-sounding grounds that the work speaks for itself. It does — to people who can already read it. But a large share of client email goes to non-technical buyers: agency producers, founders, marketing managers who are choosing between three developers and cannot evaluate your code. For them the signature is the evaluation, and the two things they need are your stack (do you build the thing they need) and your availability (can you start).
Two specifics worth getting right. First, name the stack the way clients say it, not the way engineers do — “React & Node” or “Shopify” or “WordPress”, because that is the phrase in the brief. Second, link one destination: for client work a portfolio of shipped projects usually converts better than a GitHub profile, since a non-technical buyer cannot assess a repository — GitHub belongs there when your buyers are engineering managers. Keep it to four lines; a signature with six social icons and a quote reads as someone with spare time. More in freelancers.
“React & Node developer”, “Shopify developer” — the phrase that appears in the brief.
For non-technical buyers this converts better than a repository.
Essential for engineering-manager audiences, near-useless for a marketing lead.
“Available for projects from November”. The other thing every client asks.
Clients budget and engage differently for each.
Saves a round trip on every international enquiry.
Development projects start with a scoping conversation.
It undercuts the professionalism the client is paying for.
Real renders, not mockups — this is the output that reaches an inbox. Under each is why that layout suits this kind of work.



Written and maintained by the ProSignature team. Competitor pricing and feature claims on this site are verified against each vendor's live page on the day of writing — last verified 26 July 2026. No affiliate links. How we work.
Design it in minutes and install it in one click.
Create my signature — freeName and your stack in the language clients use, a portfolio of shipped work, GitHub if your buyers are technical, current availability, whether you are freelance or agency, timezone if relevant, and one clear call-to-action.
Depends on the buyer. Engineering managers read repositories; founders and marketing leads cannot assess one and need shipped projects. Link the one your clients actually evaluate.
State it plainly with a date — 'Available for projects from November'. It is one of the two questions every client has, and answering it unprompted saves an exchange.