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Selected engagements · 2022–2025

The hires that
moved the needle.

A redacted look at recent retained mandates. Names withheld by default, outcomes shared with permission.

Selected case studies

Filter by practice area

  1. 01Financial services

    Chief AI Officer

    Fortune 100 global bank

    New York · Hybrid

    Weeks
    11
    Mapped
    142
    Finalists
    7

    The mandate

    Replaced an internal hire that had stalled twice. We mapped every candidate who had operationalized AI inside a Tier 1 bank globally, narrowed to seven, and closed in under twelve weeks.

    The outcome

    Hire is now leading a 240-person org and chairs the firm's AI risk committee.

    "They mapped a market we thought we already knew. The shortlist was tighter, sharper, and more candid than anything we'd seen in a decade of search."
    Chief People Officer
  2. 02Healthcare

    VP Engineering, ML Platform

    Public health-tech ($14B mkt cap)

    Boston · On-site

    Weeks
    9
    Mapped
    96
    Finalists
    5

    The mandate

    Engineering leader to build the company's first unified ML platform across imaging, claims, and clinical NLP. Required rare combination of regulated-domain experience and frontier infra.

    The outcome

    Hire shipped v1 of the platform in seven months; team scaled from 18 to 64.

    "Every candidate they sent us was someone we wished we'd already known. That's the bar."
    Chief Technology Officer
  3. 03Frontier AI

    Head of Applied Research

    Series B foundation-model lab

    London · Hybrid

    Weeks
    12
    Mapped
    88
    Finalists
    6

    The mandate

    Recruited a research leader from a top-3 frontier lab to bridge cutting-edge work with a shipping product roadmap. Search ran entirely off-market against active counter-offers.

    The outcome

    Team published two papers and shipped a new product line within a year of joining.

    "They understood the science well enough that the candidates took the call. That changed everything."
    Founder & CEO
  4. 04Enterprise SaaS

    Staff Software Engineer, Platform

    Series D dev-tools company

    Remote · EU

    Weeks
    8
    Mapped
    134
    Finalists
    9

    The mandate

    Distributed-systems engineer to lead a re-architecture of the core ingestion pipeline. Required hands-on Rust plus a track record of mentoring senior ICs.

    The outcome

    P99 latency cut by 62%; hire promoted to Principal within 14 months.

    "We'd been searching for nine months. They closed it in eight weeks with a candidate we didn't know existed."
    VP Engineering
  5. 05Cybersecurity

    Director of AI Security

    Late-stage security platform

    San Francisco · Hybrid

    Weeks
    10
    Mapped
    102
    Finalists
    5

    The mandate

    First-of-kind role combining red-team experience with applied ML. Pool of qualified candidates was under 200 people globally; we engaged 102 of them directly.

    The outcome

    Hire built a 22-person org and shipped the company's flagship AI threat product.

    "The depth of the brief made every candidate conversation count. No wasted cycles."
    Chief Information Security Officer

Verified on Clutch · AI & Software Development

What clients say
in their own words.

  • 5.0
    Telepharmacy platform
    "We were satisfied with their services."

    Hired backend engineers, data engineers, and a development team lead to scale the tech org. A team of 4 researchers and 2 recruiters owned end-to-end search from outreach to offer negotiation.

    Antonia F., Head of HR

    MAYD Group GmbH · Berlin, Germany

    Recruiting · Backend & data engineering · Jan – Jun 2022

  • 4.5
    Industrial IoT software
    "Zero to One Search helped us find the right candidates for our company."

    Niche engineering profiles across Node.js, C++ and IoT applications recruited for a manufacturing-focused IoT platform. Responsive, attentive, and willing to iterate until the right hires were closed.

    Manager (Anonymous)

    Cybus · Berlin, Germany

    Recruiting · Node.js, C++, IoT engineers · Jan 2021 – Oct 2022

  • 5.0
    Performance marketing
    "The workflow went smooth and was by far better than the one with the other recruitment firms."

    Delivered ~40 qualified full-stack candidates in two months; 5 hired before onboarding capacity paused the search. Considered cultural fit alongside the IT requirements and supported relocation and visa questions.

    Mircea Popa, CEO

    JobNinja GmbH · Munich, Germany

    HR Consulting · Full-stack developers · Sep – Nov 2022

  • 4.5
    IT consulting
    "We enjoy the flexibility and quality of their current processes."

    Ongoing executive search for tech profiles aligned to business needs. Required positions filled on time; negotiation discipline and availability cited as standout traits.

    Viktor Stark, Head of HR

    unitb consulting GmbH · Berlin, Germany

    Executive search · Tech talent · Apr 2023 – Ongoing

  • 4.5
    IT, consulting & logistics
    "Their communication and dedication to delivering were impressive."

    Three hard-to-fill platform roles closed after previous recruiters had failed to deliver. Patient, hardworking team that adapted to internal hiring processes.

    Marina Angelina Caleta, Talent Acquisition Specialist

    Reverse Logistics GmbH · Munich, Germany

    Recruiting · QA Lead, Application Manager, ERP Developer · 2024

  • 5.0
    Finance & IT consulting
    "Everything was great."

    Presented ~12 candidates per role and filled both an SQL Database Developer and a Risk & Compliance Project Manager. Bonus advice on candidate visa processes provided at no additional cost.

    Marijana Simonova, HR Manager

    Wrapclub GmbH · Munich, Germany

    Recruiting · SQL Developer, Risk & Compliance PM · Jun – Nov 2023

  • 5.0
    Recruitment / Staffing
    "They delivered a fantastic output."

    Built out the in-house engineering team by sourcing senior developers from international talent pools. Praised for their network and communication.

    CEO

    Recruitment company (Anonymous) · Berlin, Germany

    HR Consulting · Tech developers · Jun – Aug 2022

  • 5.0
    IT services / Microsoft 365
    "We were more than happy with the project."

    Optimised the client's Microsoft 365 tenant structure and supported day-to-day operations. Quick execution from first contact, reliable delivery, and a get-things-done attitude.

    Director (Anonymous)

    OCX GmbH · Stuttgart, Germany

    IT Managed Services · M365 optimisation · Feb – May 2025

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