Halborn
halborn.com
Actively hiring
Cybersecurity
Blockchain & Crypto
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$90M
1 round on record
Latest round
$90M
Series A · Jul 2022 · 4 yr ago
Team
23
US Form 5500 (plan participants) · Dec 2025 · -18% in a year
Hiring now
3
open roles
Backers
1
Summit Partners
The money's age
Long since its last round
50 months since the last round · hiring slowed
Momentum
25/100
a new city, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Tractionpublic signals, read monthly
Web presence
top 0.01%
of 133.2M domains by links, Common Crawl
Hacker News stories
3
best: 3 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series A | Jul 2022 | $90M | Summit Partners lead | YahooFinance |
Registers and programsofficial lists and records that name the company
| Legal entity | Halborn Inc. | its site |
Backed byfrom the funds' portfolios and accelerator catalogs
Summit Partners Investors in similar startupsfunds that back the companies most like this one
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Overview
Halborn is a blockchain security company founded in 2019 and headquartered in Miami. It provides smart contract audits, advanced penetration testing and security advisory to exchanges, layer-one networks and financial institutions. The firm is known for offensive security work that identifies vulnerabilities in node clients and wallet software as well as contracts.
News
Explained: The Nostra Finance Hack (September 2026)
How a fake liquidity pool let an attacker pump NSTR 8,000x and borrow $3.5M from Nostra Finance on Starknet, and what it means for oracle security.
Read more
Report
The State of Digital Asset Security: The Top 100 Hacks
Analysis of the largest security incidents from 2014 to H1 2026. The controls the industry trusted most have been engineered around, not defeated.
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Report
Top 3 Off-Chain Attack Vectors and Ways to Mitigate Them
These are the three off-chain attack vectors Halborn's security experts see most often in real engagements, along with the controls that close each gap.
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Report
Case Study: Strengthening Key Management and Driver Security for IntellectEU's Canton Network Infrastructure
Halborn Case Study: Strengthening Key Management and Driver Security for IntellectEU's Canton Network Infrastructure
Read more
Report
Explained: The Liquid Network Hack (September 2026)
In September 2026, Liquid Network, a Bitcoin sidechain created by Blockstream, was the victim of an estimated $320 million hack.
Read more
Report
Case Study: Securing Alpend's Privacy-Aware Institutional Money Market on Canton
Halborn Case Study: Securing Alpend's Privacy-Aware Institutional Money Market on Canton
Read more
Report
Explained: The Tectonic Hack (August 2026)
How a $1.34M-liquidity governance token let an attacker borrow $75M from Tectonic on Cronos.
Read more
Report
Explained: The Trezor/ShipMonk Breach (August 2026)
In August 2026, Trezor was the victim of a supply chain attack. A breach of the hardware wallet company's providers resulted in the exposure of the shipping addresses and other personal data of about 14,000 of its customers.Inside the BreachThe Trezor hac
Read more
Report
Explained: The Harmony ONE Hack (August 2026)
In August 2026, Harmony, the Layer-1 that supports the ONE token, was the victim of an unauthorized minting attack. The attacker created an estimated 4 billion ONE tokens worth an estimated $3.2 million in an empty-block minting exploit.Inside the AttackT
Read more
Report
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Tech stack
Technologies named in job postings at Halborn over the last 12 months, by layer, with the share of postings for each.
Technologies in use
23
Postings analysed
1
Stack modernity
86/100AI adopter
Languages
Node JS
Python
TypeScript
JavaScript
Rust
Solidity
Frameworks & libraries
React.js
Ethers.js
Databases
PostgreSQL
Cloud & platforms
AWS
Azure
GCP
Developer tools
Docker
GraphQL
Rest API
Model Context Protocol
AI & ML
LLM
Practices & domains
AI Agents
CI/CD
Structured Outputs
DeFi
Smart Contracts
Other
Ethereum
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Salary insights
Compensation ranges based on this company's open jobs
Median
$114k
Typical range
$114k
Open positions
1
1
Jobs
Junior
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $114k | $114k |
Highest paying role
Web3 Sales Development Representative (SDR / BDR / ADR / Outbound Sales Prospecting Specialist)
$114k
Normalized to USD per year
Growth
Hiring Momentum
63/100
Growing
Open positions
3
0 opened / 0 closed in 30 days
ATS activity
Every ~1 days
10/02/2026
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.
Backend
100% ▲
Activity Timeline
New location: New York
Sep 2026
Added Salesforce to stack
Sep 2026
Added NFT to stack
Sep 2026
Added LinkedIn to stack
Sep 2026
Added Apollo to stack
Sep 2026
Added Rest API to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Miami
Miami
United States
HQ
1 open roles 1 posted in 90 days 100% engineering 50-200 est. staff
hires for Backend
Jobs
≈ $97k – $194k per year (Estimated) • In office • Full-Time • 4+ years exp • Miami
Python
JavaScript
Rust
TypeScript
Node JS
Solidity
PostgreSQL
AI/ML
Model Context Protocol
AI Agents
LLM
Structured Outputs
Frontend
GraphQL
React.js
DevOps
Rest API
GCP
Azure
CI/CD
AWS
Docker
Web3
Ethers.js
Smart Contracts
Ethereum
DeFi
Apply
Financials
Total raised
$90M
Latest round
Series A
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Series A | 2022 | $90M | Details |