Recruitment Process Outsourcing: What It Is and When It Makes Sense

Your Series B just closed. Your engineering hiring target is 40 people in 6 months. Your internal recruiter has a backlog of 3 open roles and is already running 12 interviews a week. Here's what happens at month 3 if nothing changes: you've placed 11 hires, your recruiter burned out in week 8, and your board slide still says 40 by Q2.

This is the situation recruitment process outsourcing (RPO) is designed for. Not because internal recruiting is bad - it works well at steady-state volumes. But there are inflection points where the math no longer supports your current model, and missing that shift costs you 6 months of execution time.

What RPO actually means

Recruitment process outsourcing is when a company transfers part or all of its recruiting function to an external provider. The provider doesn't just fill roles on request - they take ownership of the process: sourcing, screening, shortlisting, interview coordination, and in many cases offer negotiation support.

The hiring decisions stay with you. What you hand over is the operational work of finding, filtering, and presenting the right candidates.

RPO is different from using a staffing agency. Staffing agencies are transactional - you send them a vacancy, they send CVs, you pay a placement fee per hire. They start fresh on every role. RPO is an ongoing operating model: the provider becomes embedded in your process, learns your criteria, and builds institutional knowledge over time. The second hire you make through an RPO partner should be faster than the first. The fifth should be faster still. An agency will never get better at understanding your company because they have no incentive to invest in that knowledge.

Three models compared

The 5 signals your hiring model needs to change

These are the moments when continuing with your current approach starts costing you more than switching would.

1. You're hiring faster than your recruiter can screen. When qualified candidates are accepting competitor offers while your team is still reviewing the first batch of CVs, speed is the constraint - not candidate quality.

2. You're entering a new market or language. Hiring Polish-speaking customer support agents when your internal team has no context for that talent market means you'll source slowly, screen incorrectly, and lose the first 2 hires before the third one works out. An RPO partner with EE sourcing infrastructure cuts that learning curve from months to days.

3. Your core roles require sourcing expertise your recruiter doesn't have. A generalist recruiter can hire generalists. Hiring a senior DevOps engineer in a specific stack, or a compliance officer with iGaming experience, requires domain-adjacent knowledge of where those people live online and what makes them move. Not all recruiters have that. Good RPO partners in specific verticals do.

4. A funding round just closed. Series A and Series B hiring targets are set based on the growth model, not on recruiting capacity. The gap between "what we committed to investors" and "what our current team can deliver in 6 months" is exactly where RPO operates. The clock is already running.

5. Your recruiter is good at hiring but not at building recruiting infrastructure. Sourcing pipelines, ATS hygiene, hiring manager training, offer templates, structured scoring - this is the scaffolding that makes a recruiting function repeatable. Many strong individual recruiters don't build it. RPO providers do, because it's the only way they can run multiple clients in parallel.

What good RPO looks like in practice

When we take on a recruiting engagement, the first two weeks are not about placing anyone. They're about understanding the role - not the job description, which is written for LinkedIn and the salary band, but what actually makes someone succeed in this specific position at this specific company.

What did the last person who was exceptional at this role do differently from the average hire? What does the hiring manager say every time a placement doesn't work out at the 90-day mark? What's the one thing no job description ever says but every strong candidate has?

Getting that understanding right is what makes a first screen worth running. Most inbound applicants can be filtered out before anyone on the hiring team spends an hour on them, and the candidates who reach an interview are there because they match what the role actually needs - not to pad the shortlist.

Our team is Ukraine-based, with active sourcing reach across Eastern Europe. For tech companies expanding into EU markets or scaling operational teams, the EE talent pool remains significantly underutilized relative to its depth. Average time from receiving a brief to delivering a first qualified shortlist: 7–10 business days.

Anastasiya Chakubash leads our recruiting practice. She built the function from scratch at a startup - first HR hire, no process, scaling from 8 to 40 people. That means she recruits from a product perspective: she understands what a role actually demands, not just what the title says.

The build-vs-buy calculation most companies don't run

Most companies make this decision based on instinct. "We want our own recruiter in-house." Fine - but run the numbers first.

An internal recruiter in a Western European market: £45,000–£65,000 base salary. Add 30–40% total employer cost (pension, NI, benefits): £58,000–£91,000 per year. A single good recruiter, working full-time on hiring, can realistically process 8–12 hires per year while managing the operational overhead of the function - job descriptions, ATS, scheduling, reporting.

An RPO partner on a success-fee model for the same 8–12 hires: £1,500–£3,000 per placement totals £12,000–£36,000 per year. Even at the high end, you're at 40% of the cost of the in-house option - with no management overhead, no sick leave coverage, no notice period if the relationship stops working, and no knowledge loss when the recruiter leaves.

The math shifts when you exceed 30–40 hires per year. At that scale, a dedicated internal team has clear unit economics. Below that threshold - which covers the vast majority of Series A and Series B companies - RPO is almost always cheaper and usually faster.

5 questions to ask any RPO provider

These separate companies that have built a real operation from those that have not.

"What do your first two weeks look like before you start placing?" A real RPO partner front-loads role understanding. If they're talking about launching a search on day one, they're running you like an agency - and you'll get agency-quality results.

"What does your screening process include beyond a CV review?" Serious RPO partners run structured first-round screens - a 20-minute call with defined scoring criteria. Providers who forward CVs with a "looks good to me" note are not doing the work you're paying for.

"How many placements have you made in this role type or industry?" Pattern recognition from adjacent verticals matters. Recruiting for iGaming operations is different from recruiting for enterprise SaaS. The sourcing channels, compensation benchmarks, and candidate motivations are all different. Track record in your specific vertical is worth asking about directly.

"What is your average time from brief to first shortlist?" Under 10 business days is achievable for most roles with a functioning sourcing infrastructure. Over 3 weeks suggests either too many simultaneous searches or a weak pipeline. Get a number - not a range, not "it depends."

"What is your replacement policy if a placement leaves in the first 90 days?" Most good RPO partners offer a replacement at reduced or no cost within the first quarter. This policy separates providers who stand behind their work from those who don't.