Sourced, comparative, and written for hiring managers and founders making real trade-offs.
What agencies charge, what the invoice actually says, and what the alternatives cost.
Also: ON3 Works pricing: 7% and 20%
Contingency, retained and RPO fee models broken down with real UK examples, the costs hidden behind the headline percentage, and how AI-native fees compare.
Read article →Enter the salary and the agency's percentage: the fee, the VAT, what is due before anyone starts, what a rebate returns if the hire leaves, and the same hire at 7%. Shareable results.
Read article →Sourcing breadth, time-to-shortlist, pricing, and quality signal — how AI-native recruiting compares to a traditional agency, with the limits stated honestly.
Read article →Real UK costs, speed, and bad-hire risk. When to staff a search internally, when to bring in a specialist recruiter, and where engineer-led vetting fits.
Read article →Where the roles are, what they pay, and who to hire through.
Also: engineer-vetted technical network
What UK IT recruitment agencies charge on each role against ON3's 7% or 20%, six questions that separate agencies, salary benchmarks from 1.7M+ profiles, and hiring the same role in Spain through the same team.
Read article →London in numbers: 33,312 tech vacancies a quarter, AI Engineer postings up 74%, two-thirds of adverts hiding pay. Salary bands, the fee maths on a £85k offer, and when Spain is the better answer.
Read article →Toptal is for freelancers. If you're hiring permanent engineers in the UK or Spain, here's how ON3's model compares on cost, vetting, and speed.
Read article →Inside ON3's pipeline: keyword filtering, vector embeddings, fine-tuned LLM vetting, live AI candidate conversations, and the senior engineer interview that follows.
Read article →Original data on what engineers in Spain ask for, what employers pay, and who is hiring.
Also: tech salary calculator for Spain · headhunters IT in Madrid
ON3 Works' own data from 3,389 tech candidates in Spain: the median ask is €46,000 and €50,000 for seniors. By role, skill, city, experience, English level and notice period.
Read article →We checked the careers sites of the 250 most valuable tech companies. 71 were hiring engineers in Spain, 140 had nothing open, and only 30 of 238 adverts published a salary. Where, what, how much, and how Spain's pay compares with the rest of Europe.
Read article →