The Collective
Consult on great projects. Keep your job.
We source the projects. You use what you're already great at to earn a solid second income, build a standout profile, and work on amazing projects. Join the collective and become a Numstack Fellow.
For product, engineering, marketing, go-to-market, data, design, and business development professionals.
You are already excellent at what you do. Get paid for it, on your terms.
Keep your job
No leap, no lost security. Your fellowship runs alongside your day job.
Pick your projects
We match to your profile and availability. You choose what to take.
Earn on the side
A real second income, at a rate that reflects your skills and experience.
How it works
From application to engagement
- Step 01
Apply
Tell us your disciplines, your domains of expertise, and where you add the most value. It takes a few minutes.
- Step 02
We vet
We review your profile and have a conversation. The bar is high on purpose. If it is a fit, you are approved and join the collective as a Numstack Fellow.
- Step 03
We match
When an engagement fits your profile and the availability you set, we bring it to you. You choose whether to take it, with no obligation in between.
- Step 04
You deliver
You work the engagement alongside a small, senior team we assemble around it, at a rate you have agreed, on your terms.
Why join
Leverage your experience, minus the risk
A second income, no leap required
Earn from the experience you already have, without leaving your job or taking on risk. Keep your security, add an income stream on top, based on a negotiated rate linked to your skill and experience level.
We source the projects
You do not have to find clients, sell, or run a practice. We bring engagements that fit your profile and your schedule. You focus on the work, while getting recognition for your involvement.
Assisted employer declarations
We give you ready-made drafts and guidance to declare the arrangement to your employer, navigate conflicts of interest and non-competes, so it stays approved, occasional, and non-competing.
A profile worth having
Become a Numstack Fellow and wear it. We showcase our Fellows to the market over time, so your membership signals real, recognised capability. An official side gig that's compatible with your LinkedIn.
You stay in control of your time
You set your availability when you apply. We tailor matching and allocation to the schedule you control, so engagements only ever fit around your life.
Work that is actually interesting
Building and scaling real products for real teams. The kind of problem you would want on your desk anyway.
Who we want
Subject-matter experts, across the board
We are selective on purpose. The collective is only as good as the people in it, so we look for a real depth of experience and a track record of doing the work, not just talking about it.
Product
Product leaders who can find the core problem, define core value and shape what to build.
Engineering
Senior engineers who ship real software or hardware and raise the bar around them.
Design & marketing
Designers, marketers, and go-to-market specialists who make a product clear, wanted, and accessible.
Data & AI
Specialists who use data and models to add a value layer on products and services.
Strategy & operations
Operators who bring order, focus, and a plan that survives contact.
Business development
People who can source engagements, manage the relationship, and close.
Not on the list? Apply anyway.
The list is a guide, not a gate. If you are genuinely excellent at
what you do, we still want to hear from you.
Ready to join the collective?
Tell us your disciplines, your domains, and where you add the most value. It takes a few minutes, and there is no obligation.