Actively matching engineers 🌎 NYC · SF · Remote

Software Engineering Jobs
at Top Startups.
Without the grind.

Underdog.io is a closed, invite-only network connecting software engineers directly with the best startups and tech companies hiring right now. One profile. No applications. Hiring managers come to you.

Get in the network — it's free → See how it works →
✓ Free for engineers, always ✓ Takes 60 seconds to join ✓ Your employer won't see this ✓ Salary info included upfront
Top 5%
of applicants accepted into the network
50%+
of companies turned away — quality only
85%
get an interview request in week one
300K+
candidates successfully matched

Roles in the network

Every kind of software
engineering role.

From founding engineer at a seed-stage AI startup to staff engineer at a Series C — the companies in our network hire across the full spectrum of software engineering.

Backend
Server · API · Infrastructure

Python, Go, Node, Ruby, Java, Rust. Startups building scalable systems and need engineers who can own the stack from day one.

Frontend
Web · Mobile · UI Engineering

React, Next.js, TypeScript, iOS, Android. Product-focused teams looking for engineers who care deeply about the user experience.

Full Stack
End-to-End Ownership

Early-stage companies where you'll ship across the entire product — from database schema to pixel-perfect UI — and everything in between.

AI / ML
LLMs · Models · Pipelines

One of the fastest-growing segments in the network. AI-native startups building with LLMs, fine-tuning models, and shipping intelligent products.

Platform / DevOps
Infra · Cloud · SRE

AWS, GCP, Kubernetes, Terraform. Growing teams that need engineers to build the foundation everyone else ships on top of.

Founding Engineer
Employee #1 – 5

High-equity, high-ownership roles at pre-seed and seed companies. You're not joining a team — you're building one.

Seniority levels:
Mid-level Senior Staff Principal Tech Lead Founding

How it works

One profile.
Hundreds of companies.

We're not a job board and we're not a recruiter. We're a closed network that works as your personal introduction engine — connecting you directly to hiring managers at the companies worth your time.

01
Build your profile

Tell us what you've built, your stack, your level, and what you're looking for next. Takes 60 seconds. No resume, no cover letter, no retyping your work history.

02
Get hand-selected

We review every single profile by hand. Only the top 5% are accepted — which is exactly why the companies in our network trust every engineer we introduce them to.

03
Interviews come to you

Every Monday we introduce accepted engineers to matching companies. Hiring managers reach out directly — salary ranges included — and you decide who's worth your time.

Why engineers choose Underdog

The last software engineering
job search you'll do.

Most engineers who find their best role through Underdog weren't even actively searching. They just kept their options open — and the right opportunity showed up.

Typical job search
✗Spend hours applying to roles that never respond
✗Get buried in an ATS behind hundreds of other applicants
✗Staffing agency recruiters reach out about irrelevant roles
✗Comp conversation happens after you've already invested weeks
✗Your current employer can see you're on the market
Underdog.io
✓One profile, introduced to multiple vetted companies at once
✓Hiring managers read your profile directly — no ATS in the way
✓Only vetted companies — we reject 50%+ of those that apply to join
✓Salary ranges included with every single interview request
✓Your profile is hidden from your current employer by default

Companies in the network

The companies engineers
actually want to work at.

Every company in our network has been reviewed and approved. No staffing firms. No agencies. Just real teams doing real work — and hiring software engineers to help them do it.

Bland
Capital RX
Hippocratic AI
True Link Financial
Second Sight
Bizzy Car
Anatomy
Prismatic
Gemini
Cove
Onboard AI
J2 Health
Zest
GC AI
Pepr AI
Octogen Systems
Yogi
Teamshares
Eight Sleep
Roo
Keru.ai
MoneyLion
Kinetic Trials
Mira
Parachute Health

Not every company is hiring for every engineering role at all times. We match you based on what's active in the network when you join.

"

Every time I use Underdog.io I remember that job searching doesn't have to be terrible. Thanks for the product.

Zach B. — Senior Software Engineer, NYC

85%
Interview requests in week oneMost accepted engineers hear from at least one company in their first 7 days.
60s
To get startedNo resume upload. No cover letter. Just the basics — then we take it from there.
$0
Cost to engineersAlways free for engineers. Companies pay us — not you.

Good questions

Things engineers ask us
before joining.

Is this a job board? Do I apply to specific roles? +
Will my current employer know I joined? +
What experience level do I need to be accepted? +
How quickly will I hear from companies? +
Are remote software engineering jobs available? +
I'm not actively looking. Is this still worth joining? +

Ready when you are

The best software
engineering jobs
don't get posted.

The companies building the most interesting products hire through Underdog. One profile gets you in front of all of them — without sending a single application.

Get in the network — it's free →
✓ Free for engineers ✓ 60 seconds to join ✓ Employer-safe by default ✓ No spam, ever