What Hireroo does

HireRoo (株式会社ハイヤールー) is a Japanese SaaS company, founded in 2021 and headquartered in Shibuya, Tokyo, that provides an AI-era coding assessment platform for technical hiring. The company addresses the breakdown of traditional coding tests in the AI era — where candidates can bypass standardized problems by copying them into ChatGPT or Claude, and where the skill that predicts on-the-job success has shifted from 'writing good code' to 'making AI write good code.' Its core product, HireRoo Skill Interview, is composed of three tightly integrated components: a proprietary online IDE (HireRoo IDE) with Claude Code and Codex pre-integrated so candidates use AI in a fair, equal, and monitored environment; a Gen-AI Playback feature that records every prompt, AI response, and file modification across turns and replays the full decision chain; and an automated multi-dimensional scoring engine that grades code design, error handling, debugging, accuracy, tests, and AI collaboration skills, with deviation-value ranking for candidate comparison.

The platform targets engineering managers, CTOs, and HR/recruiting teams at Japanese technology companies hiring software engineers, frontend, backend, infrastructure, and SRE roles, and has accumulated 200+ paying customers across verticals including entertainment (GREE, DMM.com, Timee), food delivery (Demaecan, nosh), healthcare/pharma-adjacent (RevComm, istyle, JMDC, hacomono, Kaminashi), IT/infrastructure (GMO Internet Group, primeNumber, KINTO Technologies, Ridge-i, SMS), and e-commerce/fintech/legal-tech (freee, coconala, Bengo4.com, caddi, Porters, Safie). Documented customer outcomes include 40% reductions in engineering-manager document-screening workload, 1.6x larger candidate pools without expanding sourcing channels, 2.3x–4x improvements in document-screening pass rates, and 3.2x improvements in offer acceptance rates. The company also supports international hiring for candidates in Mexico, Taiwan, Switzerland, and the USA.

HireRoo operates a hybrid go-to-market combining a product-led free trial for self-service adoption with an enterprise field-sales motion for larger accounts, supported by customer success and an extensive published case-study library. Revenue is generated on a per-candidate or annual subscription basis, with quote-based, non-publicly-disclosed pricing. The company has raised approximately $3.8M in total across a March 2021 seed round (~$330K, Primal Capital) and a February 2025 Series A (~$3.5M, Deepcore and SMBC Venture Capital), and has ~46 employees. Strategically, the company competes as the only coding test that visualizes 'AI collaboration skills' (AI協働力) — i.e., prompt engineering, iteration, verification, and decision-making when working with AI coding assistants — alongside traditional implementation skills, while offering a managed fair-AI-environment that removes the candidate's personal AI subscription as a variable.

Name

Hireroo

Legal name

株式会社ハイヤールー

Website

https://hireroo.io

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

HireRoo is a Japanese SaaS company providing an AI-era coding assessment platform that evaluates software engineers' implementation skills and 'AI collaboration abilities.' Its proprietary IDE integrates Claude Code and Codex with Gen-AI Playback recording AI interactions, serving 200+ enterprise and mid-market customers.

Ownership category

akta.pro rank

Headquarters

HQ city

Shibuya

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Subscription SaaS: Coding test service billed on a per-candidate or subscription basis. Companies pay for test executions or annual subscriptions. Free trial/phase implementation options available.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

HireRoo Skill Interview is an AI-powered coding assessment SaaS that evaluates software engineer candidates on both implementation skills and 'AI collaboration skills' (AI協働力). Candidates complete practical, ambiguous engineering challenges inside HireRoo's online IDE with Claude Code and Codex pre-integrated, while the platform's Gen-AI Playback records the full AI-assisted development process for review and automated scoring. The service is sold to corporate HR, recruiting, and engineering teams to replace traditional, easily-cheated coding tests with objective, AI-era-aware technical screening.

Product overview

HireRoo (株式会社ハイヤールー) is an AI-powered coding assessment platform that evaluates software engineer candidates on both traditional coding skills and emerging 'AI collaboration skills.' The core product, HireRoo Skill Interview, consists of the HireRoo IDE (integrated online development environment with Claude Code and Codex), the Gen-AI Playback feature (which records and visualizes the entire AI-assisted development process), and automated scoring with skill visualization. The platform helps companies screen candidates fairly by providing AI tools to all candidates regardless of their personal AI subscription status, while simultaneously measuring how effectively candidates leverage AI tools during problem-solving.

Differentiator

Problem solved

Functional benefit

Brands

• HireRoo IDE: Claude Code や Codex 等が組み込まれた専用のオンラインIDE環境
• Gen-AI プレイバック

Products and services

• HireRoo Skill Interview AI-powered coding assessment SaaS that evaluates software engineer candidates on both implementation skills and 'AI collaboration skills' (AI協働力). Delivered via the HireRoo IDE with Claude Code and Codex pre-integrated, the product records the full AI-assisted development process, applies automated multi-dimensional scoring, and produces visualizable evaluation data for corporate HR and engineering teams.
• HireRoo IDE Online integrated development environment shipped as part of the HireRoo Skill Interview product; provides candidates a VS Code-style interface with Claude Code and Codex pre-integrated so all candidates have fair access to AI coding tools regardless of personal subscription status.
• Gen-AI Playback Turn-by-turn recording and visualization of the candidate's AI-assisted development process, capturing every prompt, AI response, and file modification; enables interviewers to review candidate judgment and decision-making and is sold as a component of the HireRoo Skill Interview assessment.

Quantifiable outcome

• EM document screening workload reduced by 40%
• +7 more outcomes

Named customers22 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability5 records

Feature6 records

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• CoderPad:

Broad incumbents

• HackerRank: Global incumbent in technical skill assessments, used by enterprises for coding tests, hackathons and interview prep. Competes with HireRoo for technical hiring budgets but does not natively evaluate AI collaboration skills or replay AI-assisted development.
• CodeSignal: Cloud-based technical assessment platform with Certified Assessments and an integrated interview IDE. Overlaps with HireRoo on technical hiring but again centers on human-written code rather than the AI-collaboration use case HireRoo specializes in.
• Codility: Enterprise-focused coding assessment platform popular with engineering leaders for standardized technical screening. Directly comparable to HireRoo's core use case (engineer skill testing) but built around traditional coding tasks rather than AI-assisted workflows.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights6 records

Customer concentration

• Xx.com/HireRooinc
• Facebookfacebook.com/HireRoo-109611434506167
• LinkedInlinkedin.com/company/hireroo

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hireroo