Recruitment and selection: differences, stages and KPIs in 2026

Recruitment means finding and attracting candidates; selection means assessing them and deciding who moves forward to a hire. A complete process runs through six stages: role definition, attraction, screening, interview and assessment, offer, and onboarding. It is managed with five KPIs: time to fill, time to hire, offer acceptance rate, source of hire and cost per hire. In Spain, the public employment service (SEPE) classed 79.26% of the vacancies it analysed in 2024 as hard to fill, so the bottleneck usually lies in how the role is defined and where the search happens, not in posting more job ads.

What is recruitment and selection

Recruitment and selection is the set of activities a company, an agency or a staffing firm uses to fill a vacancy: first it identifies and attracts potential candidates (recruitment), then it assesses their fit to decide who to hire (selection). The two functions are consecutive, but not interchangeable.

In Spain, article 40 of the Employment Act 3/2023 and the labour-intermediation framework counts both attracting and connecting candidates and selecting suitable people as intermediation: selection is part of one end-to-end function, not just a CV review at the end.

Differences between recruitment and selection

The operational difference between recruitment and selection is this: recruitment builds the funnel, and selection applies the filters that decide who moves forward. Recruitment fills the wide end; selection narrows it down to a shortlist.

Criterion	Recruitment	Selection
Goal	Attract potentially suitable people	Choose the person who fits best
Question it answers	Where is the talent and how do I reach it?	Who meets the requirements of the role?
Activities	Sourcing, job ads, direct outreach	Screening, interviews, tests, references
Output	A broad pool of candidates	A shortlist and a hire
Main KPI	Source of hire, candidates per vacancy	Acceptance rate, quality of hire
Risk if it fails	Too few valid profiles in the funnel	Decisions without a defensible rationale

Recruitment is also multichannel: the methodology of the Spanish Labour Force Survey (INE) on job-search methods counts employment offices and job boards, approaching employers directly, personal networks and online ads as active methods. Posting a job ad is one channel, not a full process.

At the kick-off meeting: pin down whether the client expects job advertising, direct search, assessment, a finalist shortlist or support through onboarding.

Stages of the recruitment and selection process

The recruitment and selection process moves through six stages, from defining the need to onboarding. No stage should start without the information the next one needs.

Stages from vacancy to shortlist

The first four stages of the selection process turn a brief into a shortlist of finalists:

1. Role definition. Separate, with the client, the must-have skills from those that can be learned, and agree on what evidence proves the level. A job title alone is not enough.
2. Attraction. Choose channels by candidate type: inbound applications, direct search, networks or job boards. An attractive job ad does not replace sourcing when the right talent is not looking.
3. Screening. Compare every application against agreed, documented criteria. A keyword filter can discard transferable experience simply because the CV uses different terminology.
4. Interview and assessment. Test what the profile claims with examples, relevant exercises and consistent questions. The interview validates; it does not make up for a vague role definition.

Stages from decision to onboarding

The last two stages of the selection process close the hire and feed future searches:

5. Offer. Align duties, terms and availability between candidate and client before surprises appear.
6. Onboarding and follow-up. In outsourced selection, confirm who owns the next steps and collect feedback for the next search.

Recruitment and selection KPIs for agencies, staffing firms and TA

Recruitment and selection KPIs answer three management questions: which channel produces candidates who progress, at which stage processes stall, and how many unique people must be contacted to close a vacancy. Agree the formulas with the client and keep them stable:

• Time to fill: days from opening the vacancy to filling it.
• Time to hire: days from the first meaningful contact until the person accepts the offer.
• Offer acceptance rate: offers accepted divided by offers made.
• Source of hire: the channel the hire came from.
• Cost per hire: team time, tools and paid channels, with the list of included costs fixed upfront.

The guide to recruitment KPIs goes deeper into the formulas. The main KPI changes with the type of operation:

Type of operation	Main KPI	Indicative threshold
Staffing firm	Time to fill and available candidates per vacancy	By campaign, location and requirements
Boutique agency	Acceptance rate and shortlist-to-offer conversion	Against each specialism's history
Corporate TA	Time per stage and quality of hire	Set with the hiring departments

In Spain, one contract does not equal one person: SEPE recorded 15,645,243 contracts in 2025 for 6,857,161 people, 2.28 contracts per person hired, according to its hiring report. Measuring unique people rather than contracts keeps activity from being mistaken for reach.

Why vacancies are hard to fill in Spain

In Spain, most vacancies are hard to fill: SEPE classes 79.26% of the vacancies analysed in 2024 as hard to fill and 18.62% as impossible to fill; only 2.13% show no difficulty (SEPE labour-market trends report). With those numbers, better job ads are not enough: the role and the search need a better definition.

Geography is a technical variable in recruitment in Spain: SEPE's catalogue of hard-to-fill occupations is built province by province and updated every quarter, so an occupation can be hard to fill in one region and not in another. Organise pipelines by location; the analysis of geographic mobility in selection turns location into an operational criterion.

How to segment a candidate search without discriminating

Segmenting a candidate search is legitimate when it rests on skills and availability, never on personal characteristics. In 2025, SEPE recorded 3,990,538 contracts for foreign nationals, up 6.98% on the previous year, and temporary contracts among young people reached 59.26% (data on hiring of foreign nationals and SEPE's youth-hiring data). These are signals for designing searches, not reasons to infer anyone's suitability from nationality or age.

Search criterion: translate the vacancy into skills, verifiable experience, location and mobility, then add alternative job titles. Don't exclude valid talent because of a label.

Boolean search, LinkedIn Recruiter or AI sourcing: which to use

Manual Boolean search, LinkedIn Recruiter and AI sourcing solve different recruitment problems. The useful comparison is how much work each one takes to produce a relevant, contactable list of candidates.

Criterion	Manual Boolean	LinkedIn Recruiter	AI sourcing (HeyTalent)
Control over the search	Full, term by term	Platform filters	Recruiter's brief and AI variables
Direct cost	Low	Per-seat licence	Per-organisation licence
Time to a usable list	High: test, review, iterate	Medium	Low if criteria are well defined
Contact data	Separate search	InMail inside LinkedIn	Email and phone finder
Main risk	Depends on the recruiter's skill	Cost as the team grows	Speeds up a badly defined search

With manual Boolean strings, the recruiter controls every term at the cost of time; these Boolean operator examples for recruiting help when job titles vary.

Where HeyTalent fits in recruitment and selection

HeyTalent covers the part of recruitment that eats the most hours: it extracts LinkedIn profiles in real time, supports Boolean search, filters with custom AI variables, finds emails and phone numbers, and runs automated outreach sequences. According to HeyTalent, its users work 60% faster during their first month of use.

The pricing model matters when several recruiters share searches: HeyTalent charges per organisation rather than per seat, which the company says means savings of up to 5x against the cost of LinkedIn Recruiter; for a recruiter working alone, the gap narrows.

For the selection stage, HeyTalent offers its ATS at no cost and charges for the sourcing layer: job posts, application forms, a candidate database and one pipeline per vacancy that the client can view. An agency already using Teamtailor, Viterbit or Workable can keep it and move profiles across via CSV export. This video shows the AI sourcing workflow:

AI screening and GDPR: controls for an auditable selection process

Screening candidates with AI is not prohibited in Spain, but it requires an explainable process: the employer must be able to state the purpose of the processing, which criteria apply and who reviews the result. An opaque score is not a professional justification.

The Spanish data protection authority (AEPD) requires data protection by design, a risk assessment and clear information about the system, and the GDPR restricts decisions based solely on automated processing that have legal or similarly significant effects (guidance on AI and data protection). An auditable AI screening process includes these controls:

• Defined purpose: which professional requirement the AI assesses.
• Minimal data: only the information that purpose needs.
• Documented criteria: variables, rules and changes to the filter.
• Bias review: check the output does not unjustifiably disadvantage anyone by sex, age or origin.
• Recorded human review: who checks the results and how they correct them.
• Appeal channel: tell candidates AI is used and let them challenge an assessment.

In HeyTalent, the recruiter writes the AI variables themselves, which makes each criterion easy to document; the platform processes public data under legitimate interest and never resells it. Estimated age or origin must never be a selection criterion.

30-day plan to improve recruitment and selection

A 30-day plan is enough to find where the recruitment and selection process gets stuck before investing more in another search:

1. Week 1 — diagnosis. Review a sample of open vacancies, find the stage where each process stalls, and agree on KPI definitions.
2. Week 2 — role profiles. Rebuild the profiles of hard-to-fill vacancies, separate must-have requirements from transferable skills, and organise the search by region and mobility.
3. Week 3 — AI screening. Pilot AI-assisted filters on a single, well-scoped vacancy, document purpose and variables, and check that no decision rests solely on an automated score.
4. Week 4 — tools. Compare tools on cost per contactable candidate, time to a usable list, access to contact data and process control. Keep your current ATS if it already handles applications well.

If direct search eats hours in Boolean strings and first contact, trial a specialised tool such as HeyTalent, deciding upfront how you will audit its filters.