Coresoft Inc. Successfully Hires 2 High-Caliber Engineers in 8 Months Through "Offers"

Coresoft Inc. Successfully Hires 2 High-Caliber Engineers in 8 Months Through "Offers"

overflow Inc. (Headquarters: Minato-ku, Tokyo; CEO: Yuto Suzuki; hereinafter "overflow") is pleased to introduce a success story of Coresoft Inc. (hereinafter "Coresoft") in their recruitment efforts through "Offers," the AI-powered engineer recruitment platform operated by overflow.

Coresoft faced challenges in building a pool of high-caliber leaders, such as PMs, PLs, and tech leads, to drive their projects. With a recruitment team of just one person, they efficiently expanded candidate engagement by utilizing Offers' "Interested" auto-send feature and continuously improving their scout message content. Within just 8 months of implementation, they successfully hired 2 high-caliber engineers.

▶ Case study interview article here: https://offers.jp/cases/coresoft

▶ Offers recruitment success case studies can be downloaded here: https://lp.offers.jp/ebook_01

Client Testimonial

Hired 2 High-Caliber Professionals in 8 Months Since Implementation: The Inside Story of Engineer Recruitment Using Offers

Comment from Mr. Moriyama, HR Group Manager at Coresoft Inc.

※ Excerpt from the case study interview

【Challenge】

"We struggled to build a pool of high-caliber engineers, including PMs, PLs, and tech leads. Our company engages in contract development where we are the prime contractor for clients, and SES business where we are the primary contractor for major SIers. The presence of leaders who can drive projects is indispensable. However, looking at the overall market, the number of candidates for these positions is small, and attracting talented individuals with both development experience and initiative inevitably leads to a competition with other companies. Approaches to the talent we seek have become more difficult, even with direct recruiting services we have used for a long time."

【Initiatives】

"What attracted us most was the cost advantage of not incurring recruitment fees and the AI-assisted scout message creation feature (※Recruitment fees vary depending on the contract plan).

We believe Offers' greatest strength is that it attracts many excellent engineers from the mid-career to high-caliber levels. We found that we could efficiently approach the candidates we target, and there were fewer mismatches after sending out scouts.

We consulted with Offers' representatives on the scout messages and tested multiple patterns using accumulated data. While we tried various tones, from formal messages to casual ones with emojis, the tone that yielded the best response was somewhere in the middle."

【Results】

"We successfully hired 2 high-caliber engineers, which we feel is an excellent result. Out of approximately 13 applications, we interviewed 3 candidates who met our requirements, and 2 of them accepted our offers. Because we can connect with high-quality candidates who meet our target requirements, our offer acceptance rate is relatively high, and we've experienced fewer gaps between the ideal candidate profile we envisioned during scouting and the individuals we met in interviews.

Our account manager provided support based on successful case studies from other companies, helping us understand market trends that would be difficult for us to grasp on our own, which was a great help."

Case Summary: Coresoft's Challenges and the Effects of Implementation

Background of Challenges

Struggled to build a pool of leaders such as PMs, PLs, and tech leads

Few candidates available in the market for these positions, leading to intense competition for talent

Established services are also used by competitors, making approaches more difficult

Measures Taken

Introduced Offers, specializing in immediate hires, and designed scout operations

Utilized automatic "Interested" sending to create engagement even with a small team

Validated scout messages based on accumulated data and optimized to a middle tone

Effects

Successfully hired 2 high-caliber professionals within 8 months of starting use

Interviewed 3 candidates from approximately 13 applications, with 2 accepting offers; high acceptance rate

Few mismatches due to small gaps between scout expectations and interview impressions

▶ Case study interview article here: https://offers.jp/cases/coresoft

Visualize Your Engineer Recruitment Strength for Free with "Hiring Strength Check"

Understand your company's engineer recruitment strength with just a URL.

By simply entering your company's URL, AI will score your company's engineer recruitment strength across 5 metrics and 24 items based on publicly available information such as your recruitment page, job postings, and technical content. Furthermore, based on recruitment data from over 1,000 companies supported by Offers, it calculates your company's position relative to industry peers as a deviation score. After applying, you will receive a detailed 12-page report (Hiring Deviation Score Report) via email.

▶ "Hiring Strength Check" (Free) here: https://service.offers.jp/client/hiring-check/

Offers AI RPO Launch Commemorative Campaign Underway (Until 2026/8/31)

Offers AI RPO Launch Commemorative Campaign

To commemorate the launch of Offers "AI RPO," we are offering a "Launch Commemorative Campaign" providing a 50% discount on the base price for eligible plans until August 31, 2026 (Monday).

Campaign Period: Until August 31, 2026 (Monday). Customers whose contracts are concluded within this period are eligible (judged by the contract conclusion date, not the inquiry or application date).

Eligibility: Companies newly contracting for AI RPO (Renewal of existing contracts / re-contracts within 3 months of cancellation are not eligible). This applies only to the base fee; option fees and additional service charges are not included.

Application/Inquiries: https://lp.offers.jp/airpo_campaign

Notes:

May end without prior notice depending on application status

Applicable conditions and details will be provided by your Offers representative

There is no obligation to apply after making an inquiry. Please feel free to contact us first.

Upcoming Events & Conferences

"AI x Recruitment Conference 2026 Summer" | July 30 (Thu) Online Event

AI x Recruitment Conference 2026 Summer

Offers will host "AI x Recruitment Conference 2026 Summer," one of Japan's largest online conferences in the AI x recruitment domain, on July 30, 2026. With the theme "Frontlines of Recruitment Design and Organizational Management in the AI Era," sessions will be delivered for recruitment managers, HR professionals, and executives. Participation is free, and registration is open.

Date & Time: July 30, 2026 (Thu) 10:45 AM - 5:30 PM

Format: Online

Participation Fee: Free

Registration: https://ai-recruitment-conf.offers.jp/

Behind the Scenes of Building a Recruitment Site Diagnostic Tool with Approximately 200 Items, Developed In-House with Claude Code, by Mr. Koji Fuyutani, Representative Director of Bajji Inc. | July 9 (Thu) & July 16 (Thu)

Behind the Scenes of Building a Recruitment Site Diagnostic Tool with Approximately 200 Items, Developed In-House with Claude Code, by Mr. Koji Fuyutani, Representative Director of Bajji Inc. | July 9 (Thu) & July 16 (Thu)

Mr. Koji Fuyutani, Representative Director of Bajji Inc., will discuss how they developed a recruitment site diagnostic tool, designed from over 100 support cases and over 10,000 survey data points, in-house using Claude Code. He will talk about the choice to use AI not just for "efficiency" but for "value enhancement."

Date & Time: July 9 (Thu) 12:00 PM - 1:00 PM (Live Stream) / July 16 (Thu) 12:00 PM - 1:00 PM (Re-stream)

Format: Online

Participation Fee: Free

Registration: https://offers.jp/events/seminar_81

What is Offers

Offers Rebrands. Recruitment in the AI Era Starts with Offers.

"Offers" is an engineer recruitment platform for the AI era. Leveraging a database of over 35,000 engineers and proprietary AI technology, it achieves reproducible engineer recruitment through "AI RPO," which supports the entire process from candidate discovery to scouting and hiring. Over 1,000 companies have adopted it.

AI Era Engineer Job Platform "Offers"

Job platform for comparing and considering job openings based on desired conditions "Offers Jobs"

Career/Technology Trend Commentary Media for Engineers and PdMs "Offers Magazine"

Recruitment Know-how and HR Domain Commentary Media for Corporate Representatives "Offers HR Magazine"

Technology Trend Events for Candidates and Developers "#Offers_DeepDive"

▶ For companies that want to completely outsource scout operations to AI and RPO: "AI RPO Plan"

▶ For companies that want to measure and analyze their engineer recruitment strength: "Engineer Hiring Strength Check"

▶ For companies seeking dedicated team commitment for high-caliber recruitment: "Budget-Based Retainer Plan"

About overflow Inc.

Item

Details

Company Name

overflow Inc.

Location

Shin-Toranomon Jitsugyokai Building 5F, 1-1-21 Toranomon, Minato-ku, Tokyo 105-0001

Representative

CEO Yuto Suzuki

Established

June 9, 2017

Capital

208.8 million yen

URL

https://overflow.co.jp/

Related Press Releases

2026-06-01 Offers Rebrands — "Recruitment in the AI Era Starts with Offers"

2026-06-02 Offers Launches New Service "AI RPO" — 50% Off Regular Price for Launch Commemorative Campaign

2026-06-04 Nihon TCG Center Successfully Hires 11 Engineers in 6 Months Through "Offers" — Accelerating the Construction of an AI-Centric Development System

2026-06-05 QuackShift, an AI Startup from the University of Tokyo's Matsuo Laboratory, Successfully Hires AI Engineers and Project Managers Through "Offers"

2026-06-22 Clear Inc. Successfully Hires Full-Time, Immediately Available Engineers Through "Offers" — Expanding Engagement with Technically-Minded Talent Through Proactive Scouting Operations

Inquiries Regarding This Release

overflow Inc. Public Relations TEL: 03-6555-2239 E-mail: [email protected]

For consultation or material requests regarding recruitment: https://offers.jp/client/lp