— INDEX 001 · AI-NATIVE TECHNICAL RECRUITING

Hire the
top 3%
of engineers.

We find the engineers, developers, and IT specialists your team should actually meet. Proprietary AI, a private talent database, and an expert recruiting team — identifying qualified candidates across the UK and Spain.

Need candidates? →
NETWORK · UK + SPAIN
● LIVE · INDEXING
PROFILES INDEXED
1,704,128
— 01
1.7M+
Indexed technical profiles
— 02
Top 3%
Bar to be presented as an Atelier candidate
— 03
24–48h
Median time to first qualified shortlist
— 04
UK + ES
Deep technical talent coverage
— 05
90%+
Twelve-month retention
— INDEX 002 · WHO WE ARE

We are AI-native recruiters
since 2022.

We are not a traditional agency that bolted AI onto an old workflow. Our recruiting process was built from day one around proprietary technology, structured candidate data, and technical hiring expertise. Our own AI. Our own database. Our own network.

We focus on developers, engineers, and IT professionals across the UK and Spain — people who have already done the work, can pass a serious technical bar, and are worth your team's interview time.

— INDEX 008 · IN THEIR WORDS
"
On3 Works has become my favorite external recruiting partner. They're fast, efficient, and bring us candidates already vetted, qualified, and ready to hire. They've made talent search easy for me and my team.
Gabriel Garcia
Vice-President Consulting Services · CGI
— INDEX 005 · HOW IT WORKS

One brief.
Two paths.

01 · SHARED START
Define the role
Share a brief. We begin searching immediately.
— AGENTIC
For Speed
02
AI Search
Searches 1.7M+ indexed profiles. Matches on skills, seniority, location, signals.
03
AI Structured Interviews
Candidates complete automated technical interviews. Scored and ranked automatically.
04
Ranked Shortlist
24–48h · Full transcripts included
— ATELIER
For roles where you need the top 3%
02
AI Search
Same AI, same database. Access to our top 3% technical network.
03
Engineer Interviews
Senior engineers interview live. Systems design, depth, judgment.
04
Reference Checks
Manager-level references. Verified track record.
05
Ready to hire
Engineer-vetted shortlist. Interview only if you want to — the vetting is already done.
Staff · Principal · Founding roles
— INDEX 003 · OUR ADVANTAGE

Proprietary technology. Technical hiring expertise.
Neither alone is good enough.

I.
AI-powered search at scale
Our proprietary AI searches across the open web, public code repositories, professional networks, hiring signals, and our own indexed database. It matches against the real requirements of a role — not just the job title — and it moves fast. We cover ground that would take a traditional team weeks.
II.
A private talent database
Built and refined over time, our database tracks technical experience, seniority, location, skills, market movement, and prior qualification data. We don't start every search from zero. We already know where to look.
III.
A concentrated technical network
A curated network of developers, engineers, and IT professionals across the UK and Spain — people who've shipped meaningful systems, operated real production environments, and worked inside serious technical teams.
IV.
Engineers assessing engineers
This is where we diverge from every other agency. Before a candidate reaches your shortlist, a senior engineer on our team has interviewed them — live, structured, technical. Systems design. Code reasoning. Architecture. Assessed by people who've done the work themselves. You receive the transcript and a scored assessment before you ever speak to them. No surprises in the room.
— INDEX 006 · THE NETWORK

Top technical talent across the
UK and Spain.

We focus on people with real experience: candidates who have shipped systems, operated production environments, solved hard technical problems, and worked inside serious teams.

01Backend engineers
02Full-stack developers
03Platform engineers
04Data engineers
05ML engineers
06DevOps & cloud specialists
07Cybersecurity specialists
08IT infrastructure professionals
09Technical leaders
— INDEX 007 · SAMPLE PROFILES

Real candidates.
Real technical depth.

Every profile in our network is assessed for more than a job title. We look at what they have built, the environments they have worked in, the complexity they can handle, and whether they are genuinely qualified.

01Maria G.Staff Backend Engineer
LONDON
02Arjun S.Staff Full-Stack Engineer
MANCHESTER
03Kenji W.Principal Platform Engineer
EDINBURGH
04Linnea R.Senior ML Engineer
BARCELONA
PROFILE · 001 / 142,408
QUALIFIED
[ PORTRAIT ]
Maria G.
Staff Backend Engineer
Python · Django · GCP
LOCATION
London
EXPERIENCE
11 years
STATUS
Available in 2 weeks
"Qualified for backend architecture, distributed systems, API design, and technical leadership."
Request introduction →
— INDEX 009 · PRICING

Same advantage.
Different depth of vetting.

Both services run on proprietary AI, our private database, our technical network, and our recruiting judgment. The difference is how much human technical vetting you want before candidates reach your team.

01 · FOR SPEED
Agentic
Fast, automated recruiting
7%success fee
AI-powered technical recruiting for speed. For teams that need qualified candidates quickly. Agentic uses our proprietary AI to search, screen, interview, score, and rank candidates automatically. Built for urgent IC roles, backfills, and searches where speed matters.
AI-powered sourcing across the open web
Candidate matching from our proprietary database
Structured AI interviews with transcript & scoring
Automated candidate ranking
Fast qualified shortlists
60-day replacement window
Start with Agentic →
FOR ROLES WHERE YOU NEED THE TOP 3%
02 · FOR DEPTH
Atelier
The top 3%
20%success fee
Senior-engineer vetted hiring for critical roles. For roles where the cost of a bad hire is too high. Atelier adds deep human technical evaluation to our AI and database advantage. Candidates are vetted by senior engineers through technical interviews, systems assessment, and reference checks before handoff.
Access to our top 3% technical network
Senior-engineer technical interviews
IC depth and systems-design assessment
Manager-level reference checks
Best for staff, principal, founding & team-defining hires
90-day replacement window
Talk to Atelier →
— INDEX 010 · QUESTIONS

Straight
answers.

01What makes you different from a normal recruitment agency?
+
We are AI-native recruiters. Our process is built around proprietary AI, our own technical talent database, and a curated network of top developers and IT professionals across the UK and Spain. Traditional agencies often rely on LinkedIn searches, inbound applicants, and manual outreach. We combine AI search, structured data, network access, and technical recruiting judgment to find candidates who are already qualified.
02What do you mean by "qualified candidates"?
+
03Why do you focus on the UK and Spain?
+
04What kind of roles do you cover?
+
05Do you only use AI?
+
06How fast can we see candidates?
+
— FIN.

Tell us who you
need to hire.

We will tell you if we can help — and come back with qualified candidates, not a résumé dump.

Need candidates? →