What Is Interview As A Service and Why Does It Matter?

According to HBR Hiring & Recruitment, interview as a Service (IaaS) is a model where companies outsource their technical interview rounds to a network of external, vetted industry experts. It matters because your most valuable engineers are likely spending 10-15 hours a week conducting interviews instead of building your product, creating a massive hidden cost and a significant drag on your roadmap.

This isn’t just about saving a few hours. The real problem is that in-house interviews are often inconsistent, prone to bias, and create a terrible candidate experience. When your team is stretched thin, interviews get rescheduled, feedback is delayed, and your hiring bar becomes subjective. IaaS replaces that chaos with a standardized, scalable process. BarRaiser has conducted over 400,000 interviews and we’ve seen that a structured, third-party approach doesn’t just speed up hiring; it fundamentally improves the quality of who you hire. It’s about getting your engineering team back to shipping code while ensuring every candidate gets a fair, consistent, and professional evaluation.

How Does BarRaiser’s Interview As A Service Actually Work?

The BarRaiser process is designed to give your engineering team their time back in under 24 hours. You simply add your candidates to the BarRaiser platform, select the required skills and seniority level, and our system takes over. There’s no back-and-forth scheduling or chasing down interviewers.

Our platform instantly matches your role with one of our 4,000+ calibrated domain experts, who are available 24/7 across all time zones. They conduct a comprehensive, structured interview using a standardized framework to eliminate bias. Within 120 minutes of the interview, a detailed scorecard is delivered to your inbox. It includes a clear hire or no-hire recommendation, skill-gap analysis, and a video recording of the entire session. The whole journey, from you adding a candidate to receiving a detailed report, takes less than two days. It’s a complete interview outsourcing solution that plugs directly into your existing workflow.

What Are the Real Benefits of Interview As A Service?

The most immediate benefit is reclaiming thousands of lost engineering hours, but the real impact goes much deeper. Using an IaaS provider like BarRaiser fundamentally improves hiring quality and consistency. Every candidate is assessed against the same calibrated bar, which is why our clients see a 70% recommendation-to-selection conversion rate. Seven out of every ten candidates we recommend get hired.

Another key benefit is the dramatic improvement in candidate experience. Candidates get a professional, on-time interview with an expert in their field, not a distracted engineer who was pulled out of a production fire. This matters. After 100,000+ reviews, candidates consistently rate their BarRaiser interview experience at 4.5 out of 5. Finally, you gain unprecedented scalability. Whether you need to conduct 10 interviews this month or 1,000, the process doesn’t break. You can scale your hiring up or down instantly without ever pulling an engineer away from their work.

How Much Does Interview As A Service Cost? (The ROI Calculation)

Interview as a Service costs significantly less than the hidden expense of conducting interviews in-house. A senior engineer’s fully-loaded cost to the company is often between $100 and $150 per hour. If they spend just 10 hours a week on interviewing, that’s up to $1,500 per week, or $78,000 per year, spent on a non-core activity. That’s the salary of another junior engineer.

Let’s do the math. According to research from sources like SHRM, the cost to hire can be enormous, and a bad hire costs even more. Say it takes 15 hours of engineering time to hire one person. At $120/hour, that’s $1,800 in “soft costs” for just one hire. BarRaiser replaces this unpredictable, hidden expense with a transparent, per-interview pricing model. You pay a fixed fee for a guaranteed outcome: a high-quality, structured interview with a detailed report. For one leading AI infrastructure company, outsourcing over 38,000 interviews to BarRaiser saved them an estimated 57,000 engineering hours. That’s an ROI that shows up directly in product velocity and your bottom line.

Metric	Old Way (In-House Interviews)	New Way (BarRaiser IaaS)
Interviewer	Your senior engineers (pulled from product)	BarRaiser’s 4,000+ vetted domain experts
Time Cost	10-15 hrs/week per engineer	Zero engineering hours lost
Turnaround Time	5-10 days for scheduling and feedback	<2 days end-to-end; scorecard in 120 mins
Consistency	Varies by interviewer, mood, and day	Calibrated, structured process every time
Bias	High risk of familiarity and internal bias	Independent third-party evaluation
Cost	Hidden (salary x interview hours)	Transparent per-interview pricing

What Should You Look for in an IaaS Provider?

The most critical factor to look for is the quality and depth of the interviewer network. Your provider must have genuine experts in your specific tech stack, not just generalist recruiters. Ask if their interviewers are currently practicing professionals and how they are vetted, trained, and calibrated. At BarRaiser, our 4,000+ experts come from top-tier product companies and undergo a rigorous calibration process.

The second thing to evaluate is the structure and methodology of the interview itself. A good provider doesn’t just supply a person; they supply a proven process. Look for a structured interviewing tool with standardized questions and scoring rubrics that minimize bias. Finally, consider speed and integration. The service should plug seamlessly into your existing ATS and deliver detailed, actionable feedback fast enough to not slow down your process. A scorecard delivered in under two hours should be the standard, not the exception.

How Does BarRaiser Handle Niche Tech Stacks and Culture Fit?

BarRaiser handles niche technologies by leveraging a global network of over 4,000 domain experts across 15+ different functions. We don’t believe a generalist can accurately assess a specialist. Whether you’re hiring for a specific framework in machine learning, a niche cloud technology, or a senior DevOps role, we match you with an interviewer who has direct, hands-on experience in that exact field.

For culture fit, we work with you during onboarding to understand your company’s values, communication styles, and what makes a candidate successful on your team. This isn’t a generic checklist. We build these “soft signals” directly into the interview framework and debriefing process. Our experts are trained to assess not just technical competency but also problem-solving approach, collaboration, and ownership. This ensures the candidates we recommend have both the hard skills to do the job and the soft skills to thrive in your environment.

Frequently Asked Questions

How do you ensure the quality of your interviewers?

Our 4,000+ interviewers are active, practicing professionals from leading global companies. Each one goes through a rigorous 5-step vetting process, including a technical screen, a mock interview evaluation, and continuous calibration. We constantly monitor performace and feedback to ensure the quality of every single interview remains exceptionally high.

Can BarRaiser integrate with our existing Applicant Tracking System (ATS)?

Yes. BarRaiser is designed for seamless integration. We offer native integrations with popular ATS platforms like Greenhouse, Lever, and SmartRecruiters, allowing you to add candidates and receive scorecards without ever leaving your existing workflow. We also provide APIs for custom integrations.

What happens if a candidate needs to reschedule?

Rescheduling is handled automatically through the BarRaiser platform. Candidates are given a simple, self-serve link to reschedule their interview at their convenience. This eliminates the frustrating back-and-forth for your recruiting coordinators and ensures a positive, flexible experience for the candidate.

How do you assess for soft skills and culture fit?

We work with you to define the key competencies and cultural attributes that matter most. These are built into a custom interview framework. Our experts are trained to evaluate signals like communication, collaboration, and problem-solving approach alongside technical skills, providing a holistic view of the candidate in the final scorecard.

Is the interview data secure?

Absolutely. We take data security very seriously. BarRaiser is SOC 2 Type II and ISO 27001 certified, and GDPR compliant. All interview data, including video recordings and scorecards, is encrypted and stored securely, with access limited to authorized users on your team.

How long does it take to get started with BarRaiser?

Onboarding is incredibly fast. We can typically get a new client set up and ready to conduct their first interviews in just a few days. The process involves a kickoff call to understand your roles and hiring bar, setting up your ATS integration, and calibrating the first set of interview frameworks.

What kind of roles can you handle?

We specialize in technical and product roles across all seniorities, from junior engineers to senior architects and engineering managers. Our network covers over 15 domains, including Software Development (Frontend, Backend, Mobile), DevOps, Data Science, Machine Learning, Quality Assurance, and Product Management.

What makes BarRaiser different from other services?

Our experience is our biggest differentiator. Having conducted over 400,000 interviews for 500+ companies, we have an unmatched dataset on what predicts hiring success. This data powers everything from our interviewer calibration to our structured interview frameworks, ensuring you don’t just hire faster, you hire better. Ready to see how it works? Schedule a call with our team.