For international students on F-1, OPT and STEM OPT

Land a startup job before your OPT clock runs out.

9:41
Today 8:30 AM
on opt since june. applied to 300 roles, zero replies 🫠
Read 8:31 AM
got you. found 3 seed-stage startups that can hire you on opt
1. Lumen, AI notes for clinics
2. Tally Freight, pricing for small fleets
3. Gridline, billing for solar installers
drafted a note to Lumen's founder. it says you need no sponsorship to start
reply SEND and it goes out from your gmail
SEND 🚀
Delivered
3Backdoor
iMessage

Every reason it won't work, answered.

What international students tell us, and what actually happens.

New Message
ToMMaya at LumenCc Bcc
notes for your clinic launch

Hi Maya,

Saw Lumen went live in its first ten clinics this month.

For my master's I built the speech-to-notes pipeline for a 40-clinic study.

I'm on OPT, so there's nothing to sponsor to hire me.

15 minutes next week?

Send

An example. The person and the startup are made up.

1“Startups won't hire me because of my visa.”

On OPT, nobody sponsors anything.

Your OPT card is your work permit. A startup hires you like anyone else, for 12 months, and for up to 3 years in total with the STEM extension. Most founders don't know that. Backdoor writes only to companies that can hire you on your status, and the email tells the founder in one line.

Yesterday 9:14 PM
only seed to series A pls, remote is fine
noted 🫡 picks drop in the morning
Today 8:30 AM
gm ☀️ 6 new startups fit you today
top pick: Resend, the email API. your infra background is kinda perfect for them ngl‼️
iMessage
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2“My 90-day unemployment clock is running.”

Your first emails go out the same day.

Send your LinkedIn or resume. Backdoor reads up on you in minutes, picks startups that fit and drafts a note to each founder. Reply SEND and it goes out from your Gmail that day. No profile to build, no form to fill in. Count your days left

drafted this for Resend's founder:
"Hi, saw Resend's latest launch week. I rebuilt email delivery at my last job and cut bounces by 40%..."
reply SEND, EDIT or SKIP
make it a lil shorter
iMessage
3Backdoor

3“I applied to 500 roles on Handshake and LinkedIn and heard nothing.”

So stop applying.

An application joins a pile that a filter reads first. Backdoor sends a short email from your own Gmail straight to the founder, about why you fit what they're building, and follows up in the same thread. 9 in 10 people who heard back got their first founder reply within two weeks.

Thursday 10:42 AM
ok don't freak out but your intro got a reply 👀
they wanna talk tuesday. full reply's in your inbox🎉
LET'S GOOO
Read 10:43 AM
go get em 🤞 want a quick rundown on them before the call?
iMessage
3Backdoor

4“Recruiters filter out international students.”

A seed-stage startup has no recruiter.

At a ten-person company the founder reads their own inbox and makes the call alone, on what you've built. No form asks “will you require sponsorship?” before anyone has read your work. That founder is who Backdoor writes to.

The rules, in plain words.

What a founder needs to know before they hire you, and what you need to watch.

12 months
of work on OPT
+24
months more on STEM OPT
90 days
without a job allowed (150 on STEM OPT)

On OPT the employer sponsors nothing and files nothing with immigration, only the same I-9 as for anyone. The job has to relate to your degree and run at least 20 hours a week.

On STEM OPT the employer has to use E-Verify and sign a training plan with you, Form I-983. That's paperwork, not sponsorship.

Every day without a job that counts uses one of your 90 days, weekends included, from the start date on your OPT card.

New in 2026: students admitted since 15 September are admitted until a fixed date, so OPT generally needs an extension of stay from USCIS as well. The day limits didn't change.

From USCIS and Study in the States (the 2026 rule). Backdoor isn't a lawyer: ask your school's DSO about your own case. Count your unemployment days

How it works

No forms, no job boards, no new app. Just a chat.

PDFArjun_Mehta_Resume.pdfPDF · 2 pages
0:14yo so i'm a backend eng, want something early stage, remote pls❤️
Delivered
3 yrs of backend in payments, seed to series A, remote. bet, on it 🙌
iMessage
3Backdoor
1

Tell it about you

Send your LinkedIn, resume or a voice note. Backdoor researches your background and asks what you want next.

Yesterday 9:14 PM
only seed to series A pls, remote is fine
noted 🫡 picks drop in the morning
Today 8:30 AM
gm ☀️ 6 new startups fit you today
top pick: Resend, the email API. your infra background is kinda perfect for them ngl‼️
iMessage
3Backdoor
2

It finds startups every morning

Every morning it picks startups that fit you, from fresh funding, launch and hiring news.

drafted this for Resend's founder:
"Hi, saw Resend's latest launch week. I rebuilt email delivery at my last job and cut bounces by 40%..."
reply SEND, EDIT or SKIP
make it a lil shorter
iMessage
3Backdoor
3

It writes to the founder

It finds the founder's email and drafts a note about why you fit them.

shorter ✂️ "Hi, loved Resend's launch week. I rebuilt email delivery and cut bounces by 40%. 20 min next week?"
send
Delivered
sent from your gmail ✉️
if they ghost, i'll follow up in the same thread thursday
iMessage
3Backdoor
4

You tap send. It follows up.

Emails go from your Gmail, and Backdoor follows up in the same thread until someone replies.

Thursday 10:42 AM
ok don't freak out but your intro got a reply 👀
they wanna talk tuesday. full reply's in your inbox🎉
LET'S GOOO
Read 10:43 AM
go get em 🤞 want a quick rundown on them before the call?
iMessage
3Backdoor
5

Know the moment they reply

You get a text as soon as a founder replies, and the full reply in your inbox.

Fri 6:10 PM
how's my search going?
Read 6:12 PM
this week: 12 emails out, 3 replies, 1 interview 🎉
2 follow-ups go out monday
everything's here: backdoorai.app/dashboard
ur the goat❤️
iMessage
3Backdoor
6

Your whole search, in one place

Ask how it's going anytime, or see every lead and reply on your dashboard.

Humanized emails. Not AI slop.

A typical AI-written cold email

New Message
ToFFounder at PostHogCc Bcc
Exploring SynergiesVague, reads like spam

Hey,

I hope this email finds you well. I am reaching out to express my keen interest in your innovative company, as your commitment to excellence truly resonates with me and aligns with my values.Could be any company
As a passionate, results-driven engineer, I have a proven track record of delivering high-quality solutions and I thrive in fast-paced environments. I am also a quick learner who brings a lot to the table.Buzzwords, no proof
I believe I would be a great cultural fit and I would welcome the opportunity to connect at your earliest convenience.Long, vague ask

Jake

Send
  • Gmail is optional: it sends your emails and catches the replies.
  • Nothing goes out until you say send.
  • Delete everything in one tap.

$1 for your first week.

Backdoor is your long-term talent agent, bringing you the right roles as they come. Discovery , research , your resume and introductions to our partner startups are all free. You only pay for active outreach .

Outreach starts with a first week for $1, and you can cancel anytime.

Writing from an Indian WhatsApp number? You pay once in rupees, from ₹999, and the 30 and 90-day passes carry a reply guarantee: if 50 first emails go out and no founder replies, the pass runs 30 days longer.

Replies come in weeks, not months.

Backdoor only writes to founders you fit, so the ones who answer tend to answer fast. See the research

9in 10

first founder replies came within two weeks

9in 10

interviews came within two weeks

3in 10

replies came after a follow-up Backdoor sent

Among the people who got a reply or an interview, May 2026 to October 2026, out of 481 people Backdoor sent for.

Give it three weeks.

Out of every 10 people who let Backdoor run for three weeks or more (28 people so far):

6 heard back from a founder★3 got an interview or next round

And you never have to chase.

First emailFollow-up 1Follow-up 2Follow-up 3

3 in 10 founder replies came after a follow-up. Backdoor sends those for you, so you never have to chase.

Wall of Love

Real messages from job seekers who got founder replies, shortlists and even offers with Backdoor.

18,000+
happy users
9 in 10
interviews came within two weeks
4.7/5
average rating
Posted on XJob offer

“Went in to find bugs, came out with a job offer”

X post: went in as a casual tester to find bugs, came out with a job offer. No messy emails, no hunting, simple chat to a job offer.
WhatsAppShortlisted

“My profile got shortlisted for a role”

WhatsApp message: tried Backdoor for testing and my profile got shortlisted for a role. It makes applying for a job a chill experience.
Direct message

“Why wasn't anyone doing this already”

Message: great work simplifying the product, it makes you think “why wasn’t anyone doing this already”.
LinkedIn comment

“Honestly seamless”

LinkedIn comment from Siddharth K S: been testing this out for the past hour and it is honestly seamless, gives a great handle on things right away.
LinkedIn comment

“Anything but transactional”

LinkedIn comment from Rimjhim Hazarika: the text conversation is anything but transactional, impressed with the empathetic responses.
Direct message

“Pretty good at finding leads”

Direct message: have been using Backdoor AI, it is pretty good at finding leads, really liked it.
Posted on X

“The AI is so good”

X post from Anunaya Tandon: first experience of Backdoor, the AI is so good.
Direct message

“Backdoor slaps hard”

Message: Backdoor slaps hard.
Posted on X

“Telling everyone to try it”

X post from Sahil Gulihar telling people to use Backdoor and ping the founders for any bugs.

Questions, answered.

Yes. On post-completion OPT your EAD card is your work permit, so any US employer can hire you without sponsoring a visa or filing anything with immigration for you. The job has to relate to your degree and be at least 20 hours a week.

The 24-month STEM extension needs an employer that uses E-Verify, and you and the employer sign a training plan, Form I-983. It still needs no visa sponsorship. With it, you can work for up to 3 years in total.

One plain line, such as "I'm on OPT, so there's nothing to sponsor to hire me." You see every email before it goes out, and you can change the line or take it out.

90 on post-completion OPT, and 150 in total once you are on the STEM extension. They count from the start date on your OPT card, weekends included, until you start a job that counts. The calculator on this site counts them for you.

No. Backdoor writes to founders for you. It doesn't file visas or give immigration advice; ask your school's DSO or an immigration lawyer about your own case.

At a seed-stage startup the founder reads their own email and hires on what you've built. There is no recruiter screen and no sponsorship checkbox before someone reads your work.

Anyone aiming for a pre-seed to Series C startup, where one good email to a founder can become an interview. If you want to mass-apply to big companies, it isn't for you.

Job boards put you in a pile. Backdoor writes straight to the founder, often before a role is posted, about why you fit them.

No. Every new email waits for your SEND. Follow-ups only continue threads you approved, and you can cancel them anytime.

Backdoor connects to your Gmail so it can send the emails you approve and tell you when a founder replies. Connecting it is optional, and the privacy policy has the details.

Yes, when the email is about why you fit them. 9 in 10 people who heard back through Backdoor got their first founder reply within two weeks, and 6 in 10 of those who gave it three weeks heard back. Founders at early startups read their own inbox.

Follow-ups stop, you get a text right away, and the full reply lands in your inbox.

Chat, profile research and your resume are free. Outreach starts with a first week for $1, and you can cancel anytime.

A talent agent on your side. Backdoor researches your background, helps with your resume, and keeps you in its talent pool: when one of our partner startups fits you, the team introduces you by hand. You pay only if you want Backdoor to email founders for you.

No, nothing can. It handles the research, emails and follow-ups. The interview is still you.

Free to start · No forms · No sponsorship needed on OPT

Your OPT clock is running. Use it.

Say hi and share your LinkedIn. Backdoor finds the startups, writes to the founders and follows up. You say send.

9:41
Mon 9:02 AM
send them my intro
Delivered
done ✉️ sent from your gmail
Thursday 10:42 AM
ok don't freak out but your intro got a reply 👀
they wanna talk tuesday. full reply's in your inbox🎉
LET'S GOOO
Read 10:43 AM
3Backdoor
iMessage

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