Senior Technical Recruiter

SOURCING TALENT
OTHERS CAN'T FIND.

Nine years in recruitment, including stints as a top-performing technical sourcer at Meta and GitHub. I build pipelines for the roles everyone else calls unfillable — and relationships that keep hiring managers coming back.

9
Years in recruitment
2
Top-performer titles (Meta & GitHub)
100%
Pass-through, Meta Reality Labs sprint
60+
Recruiters trained on GitHub sourcing
Meta · Technical Sourcer GitHub · Talent Strategist Wargaming · Tech Recruiter ProblemShared · Senior Recruiter

Relationships first. Requisitions second.

I've sourced and hired Backend, Fullstack, Gameplay, Graphics and Rendering engineers for two of the biggest names in tech — landing top-performer recognition at both. But the stat I'm proudest of isn't a hire count.

It's the number of times I've walked into a Talent Acquisition team mid-breakdown with a stakeholder group, and walked back out with a rebuilt relationship, an agreed hiring plan, and a hiring manager who trusts the process again.

Sourcing gets people to the table. Stakeholder management and candidate experience are what actually get them hired — and keep them recommending the process to their network afterwards.

Sourcing & headhunting

Creative, multi-channel sourcing beyond LinkedIn — GitHub, ArtStation, X-ray search, HireEZ, Entelo — built for roles everyone else calls unfillable.

Full-cycle recruitment

Own it end to end: intake, sourcing, screening, interview prep, offer and handoff — no candidate or hiring manager left guessing.

Stakeholder management

Weekly intake syncs, market data, and hands-on interview design coaching — repeatedly used to rebuild strained TA/hiring-team relationships.

Candidate experience

Prep calls, fast feedback, honest updates — the process candidates remember and recommend, offer or not.

Experience

Six roles, one thread: building pipelines for hard-to-fill, high-priority hires — and the stakeholder trust to close them.

01
Senior Recruiter ProblemShared Current Jan 2026 — Present

Leading recruitment for a health-tech startup, bringing the same full-cycle, stakeholder-first approach honed across gaming and big tech into a fast-moving healthcare product environment.

02
Tech Recruiter Wargaming Oct 2023 — Dec 2025

Full-cycle recruiter in a two-person UK team, running multiple high-priority roles at once.

  • Led weekly hiring syncs and intake meetings with Studio & Development Directors, using LinkedIn Talent Insights to bring a consultative approach to hiring decisions.
  • Built and delivered a "GitHub Sourcing" training programme to the Global TA team — see measured impact below.
  • Represented Wargaming at Develop Brighton, one of the UK's largest gaming industry conferences.

03
Executive Talent Partner Acelr8 Mar 2023 — Oct 2023

Executive search recruiter covering business development through to post-hire check-ins, sourcing passive talent across European and North American Tech and Operations markets, and coaching hiring managers on interview design.

04
Technical Sourcer Meta Jan 2022 — Feb 2023

Part of Meta's ITA Flex Sourcing Team, flexing onto high-priority pipelines with tight timelines.

  • Landed a Tech Lead / Tech Director-level hire on the CoreSWE pipeline (Instagram, Facebook, WhatsApp) within 3 months of starting.
  • Selected to flex onto Meta Reality Labs, sourcing Gameplay, Graphics and Rendering Engineers at Technical Director level for Metaverse projects overseen at the highest levels of the org.
  • Only team member — including full-time specialist sourcers — to land an offer in that Reality Labs sprint, closing a Senior Gameplay Engineer hire in under a month against a typical 6–12 month timeline.

05
Talent Strategist / Talent Partner GitHub & ForgeRock (via Recoded Recruitment) Jun 2019 — Jan 2022

Embedded recruiter sourcing high-profile Tech and Non-Tech talent across APAC, EMEA and North America for GitHub, followed by an SRE-focused stint at ForgeRock.

  • Set GitHub's record for sourced hires in a single quarter.
  • Built and delivered a diversity sourcing presentation to GitHub's Talent Acquisition team and external guests, 60+ attendees.
  • Consistent team top performer; represented GitHub at Lesbians Who Tech, hosted at Facebook London HQ.
  • Made 4 sourced hires in 2 months at ForgeRock before moving to GitHub.

06
Technical & Creative Recruitment Specialist Block Digital Talent Mar 2018 — Jun 2019

Full lifecycle 360 recruitment across UX/UI, Java and PHP, working with hiring managers and candidates across Europe and South America — where it all started.

Achievements

A few numbers that back up the story.

GITHUB

Record-setting quarter

Set GitHub's record for the highest number of sourced hires within a single quarter.

META · REALITY LABS

The only hire made

Sole team member — including full-time specialist sourcers — to land an offer in a high-priority Reality Labs flex sprint.

META

100% pass-through rate

First interview to final interview, on a Senior Gameplay & Graphics/Rendering Engineer pipeline (IC6 level).

GITHUB · WARGAMING

Trained 60+ recruiters

Designed and delivered sourcing training sessions on GitHub and diversity sourcing across two companies.

META · JUN 2022

Long-Term Impact award

Recognised at Meta's Talent All Hands for work with a lasting effect beyond a single hiring quarter.

META

Employee Outreach Principal

Set strategy and individual goals for Employee Outreach across the ITA organisation.

Wargaming "GitHub Sourcing" training — measured impact

Self-reported team averages out of 10, before and after the session I built and delivered.

Understanding the purpose of GitHub6.1 → 9.4
Comfort sourcing using GitHub4.2 → 8.5
Spotting positive signals on a profile4.8 → 9.2
Pre-training average Post-training average

Testimonials

From hiring managers and candidates I've worked with directly.

"

Oscar has shown amazing drive and initiative with everything he's worked on — from landing a hire just over 3 months into his role, to leading his first diversity sourcing session solo after only 8 weeks. We're lucky to have him on our team.

ITA Flex Sourcing Team LeadMeta
"

Oscar asks fantastic questions, has been very humble in how he's approached learning a new pipeline, and has been incredibly consistent — hitting his outreach and screen targets week on week. Keep doing what you're doing, Sir.

Director, Specialist Software Engineer RecruitmentMeta
"

As a hiring manager, Oscar quickly became my go-to person for all things talent acquisition. He got to grips with even the most complex job descriptions, and I rarely rejected a candidate he put forward.

Kai Hilton-JonesVP Field Services – International, GitHub
"

Oscar brings compassion, expertise and a continued growth mindset to the table. Thanks to him, we've been able to stay ahead of our recruiting effort and attract top talent in a fast-paced, rapid-growing organisation.

Aicha Bah-GersingSenior Director, Customer Success, GitHub
"

From the first message right through to my final offer, I found working with Oscar to be exemplary. He helped me prep for every stage and followed up promptly with feedback. Thank you, Oscar, from a very happy new Hubber!

Robert MckenzieEnterprise Support Engineer, GitHub (former candidate)
"

As a candidate, Oscar is a dream to work with — always prompt, extremely courteous, and I felt my time was respected throughout. Definitely felt like he was advocating for me the entire process.

Brendan SturgesCustomer Reliability Engineer, GitHub (former candidate)

Off the clock

31 years old, still figuring out how the next pair fits in the collection.

Personal file O. HARKER — AGE 31
Boxing

Ringside regular

Rarely misses a big fight card — as invested in the build-up and the story behind a matchup as the fight itself.

Sneakers

Collector, borderline addict

A rotation that's grown well past "hobby." Always tracking the next release.

Fashion

Style as a side interest

Into fashion the same way he's into sourcing — always looking for what's next.

Education

Bournemouth & Poole College — Level 3 Extended Diploma, Business Studies 2011 — 2013
Portchester Secondary School 2007 — 2011