Founder-led search for Seed to Series B
US · UK · GermanyOS Career

Founder-led startup recruitment

Build the team your next stage depends on.

Open Sourcing helps Seed to Series B technology companies hire the people who shape product, engineering and growth. You get direct senior attention, an honest market view and a shortlist built around the work.

Search briefFounder-led
THE DECISION

Who changes what happens next?

Define the outcome before searching the market.

Context alignedStage · team · constraints
Market mappedEvidence · access · trade-offs
Decision supportedShortlist · process · close
Seed → Series BEngineeringProductGo-to-MarketLeadership

Small by design

The judgment of an experienced partner. The pace of a startup.

Important hires do not need more CVs. They need a clearer brief, better access to the market and someone willing to say when the search is heading in the wrong direction.

Expertise

Four functions. One early-stage lens.

Engineering, Product, GTM and Leadership searches calibrated to Seed through Series B.

Explore our specialisms

Approach

A search built for better decisions.

A sharp brief, an honest market view, a considered shortlist and a process candidates trust.

See how we work

Built around your stage

The hiring problem changes as the company changes.

We calibrate the search to the decisions, evidence and operating range your next stage actually requires.

A founding team mapping an early product system
SEED

Find the first specialist.

Broad ownership, hands-on delivery and comfort working without established infrastructure.

A product leader reviewing a wall of plans
SERIES A

Turn early traction into a team.

Add depth, establish repeatable practice and hire people who can still build from first principles.

A growing team marking a shared milestone
SERIES B

Scale without losing the signal.

Bring in functional leaders and senior operators who raise the bar without importing the wrong playbook.

Direct senior attention

You work with the person accountable for the search.

Open Sourcing was founded by Andy McLoughlin after 15+ years working across startup hiring in the US, UK and Germany. The business stays deliberately hands-on, so context is not lost between a sales call and the people doing the work.

About Open Sourcing
A founder and hiring partner agreeing the next step
15+ yearsOne accountable partner from brief to close.

For candidates

Enough context to decide if the role deserves your time.

You will know what the company is solving, why the role exists, what good looks like and where the unknowns are. If the fit is not there, we will say so.

OSEARLY ACCESS

OS Career

Turn your CV, opportunities, relationships and interview learning into one private career system.

OS Career · Early access

Before we speak

Useful answers, upfront.

What stage of company do you work with?

Primarily Seed to Series B technology companies, including businesses making their first specialist or functional leadership hires.

Which markets do you cover?

The US, UK and Germany. Searches can be local, remote or cross-border when the brief supports it.

Will you send a high volume of profiles?

No. The aim is a small, relevant shortlist with enough evidence to make each introduction worth reviewing.

Do you work with candidates directly?

Yes. Candidates get honest context and clear communication. OS Career is available in early access; sign in to create your private profile.

Your next critical hire

Start with the work that needs to change.

Tell us the stage, the constraint and the outcome. We will tell you how we see the market and whether we can help.

Speak with us