Knock
knock.app
Actively hiring
Developer Tools
Information Security
Cybersecurity
Integration & API Management
Custom Software Development
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News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
How Knock hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
Knock scores B on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
News
Citigroup, Idaho, and Build-A-Bear Launched a Coordinated Attack on Me
A multinational bank, a US state, and a custom teddy-bear workshop all unwittingly joined the same phone-fraud botnet. Here
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Report
Inside the growing vigilante movement to knock out Flock surveillance cameras
An underground network of privacy activists is disabling or destroying the ubiquitous surveillance devices sprouting up across the US
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Files over tools: how we built the Knock Agent using a virtual file system and bash Knock
A look at how we architected the Knock Agent with bash, a virtual file system, and the management API.
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Report
Seeing and Hearing Internet Background Radiation
See and hear internet background radiation: live bot traffic, protocol probes, credential attempts, and source locations captured by Knock-Knock.net.
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Report
Early dopamine disruption in the entorhinal cortex of a knock-in model of Alzheimer's disease
The entorhinal cortex is a critical brain area for memory formation, while also the region exhibiting the earliest histological and functional alterations in Alzheimer's disease (AD). The entorhinal cortex therefore has been long hypothesized as one of th
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Exceptional fake SSD clone of Samsung 990 Pro is almost impossible to spot - near-identical performance blurs the line between real and fake as AI crunch drives knock-off market
There are levels to SSD clones.
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Show HN: Email API benchmarks - Real-world performance data for email providers
Real-time email API benchmarks powered by proprietary data from billions of messages. Compare response time, error rates, reliability, and uptime for SendGrid, Postmark, Amazon SES, and more.
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Tech stack
Technologies named in job postings at Knock over the last 12 months, by layer, with the share of postings for each.
Technologies in use
22
Postings analysed
3
Stack modernity
65/100
Databases
Amazon Aurora
ClickHouse
MongoDB
PostgreSQL
Cloud & platforms
Algolia
Heroku
Vercel
AWS
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Full Knock tech stack
22 technologies · by team · pay by technology · changes · similar stacks
People
Thomas Petry
Executive Officer, Director
Demetri Themelis
Executive Officer, Director
James McAvity
Director
Scott Jacobson
Director
Vik Chawla
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
58/100
Growing
Open positions
3
0 opened / 0 closed in 30 days
ATS activity
Every ~4 hours
10/16/2026
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
DevOps
67% ▼
Leadership
33% ▼
Activity Timeline
Added Stripe to stack
Sep 2026
Added OpenAI Codex to stack
Aug 2026
Added Amazon Kinesis to stack
Aug 2026
Added Amazon CloudWatch to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
New York
New York
United States
HQ
Knock
3 open roles 67% engineering 100% remote 10-50 est. staff
hires for DevOps, Leadership
69 Charlton Street, #200, New York, 10014
Jobs
≈ $92k – $177k per year (Estimated) • Remote (United States) • Full-Time • 4+ years exp • New York
MongoDB
PostgreSQL
ClickHouse
Apache Kafka
Amazon Aurora
AI/ML
Cursor
Claude Code
OpenAI Codex
Mobile
Algolia
DevOps
Terraform
Vercel
CloudFormation
Datadog
Pulumi
Heroku
AWS
Kubernetes
Amazon EKS
Honeycomb
Amazon CloudWatch
Amazon Kinesis
Management
Stripe
Apply
≈ $92k – $177k per year (Estimated) • Remote (United States) • Full-Time • 4+ years exp • New York
MongoDB
PostgreSQL
ClickHouse
Apache Kafka
Amazon Aurora
AI/ML
Cursor
Claude Code
OpenAI Codex
Mobile
Algolia
DevOps
Terraform
Vercel
CloudFormation
Datadog
Pulumi
Heroku
AWS
Kubernetes
Amazon EKS
Honeycomb
Amazon CloudWatch
Amazon Kinesis
Management
Stripe
Apply
≈ $172k – $290k per year (Estimated) • Remote (United States) • Full-Time • 3+ years exp • New York
Cursor
Claude Code
OpenAI Codex
Mobile
Algolia
DevOps
Vercel
Heroku
Platform Engineering
Management
Stripe
Apply
Financials
Total raised
$38.9M
Latest round
Venture - Series Unknown
Funding rounds
5