The Certified Quorum Developer (CQRD) is an advanced, vendor-neutral certification for the people building on Quorum. It validates that you understand enterprise Ethereum and Quorum foundations, can work with consensus and networking, can handle privacy and private transactions, can develop and deploy smart contracts, can manage permissioning and nodes, and can secure, monitor and deploy what you build. The exam is computer adaptive and performance-based, and the credential is kept current through continuing education.
| Level | Advanced. It assumes hands-on blockchain or programming experience and validates building on Quorum end to end. |
|---|---|
| Delivery model | Computer adaptive, three stages. Your score on each stage selects the difficulty of the next, so no two candidates sit the same paper. |
| Format | 120 questions. A performance-based exam that includes performance-based questions and multiple-choice questions. Concepts transfer across the whole enterprise Ethereum ecosystem. |
| Time | 180 minutes for the whole exam, timed. Autosaves every answer. |
| Scoring | You need a score of 700 out of 900 to pass. Results are reported on a scale of 100 to 900, and 700 corresponds to answering 72% of the exam correctly. Harder questions carry more weight, so a score means the same thing on any route. Multiple-response items and PBQs are all or nothing. |
| Retakes | No waiting period after a failed first attempt. Every attempt is paid for at the exam price. See the CertLabz Certification Retake Policy. |
| Voucher validity | 12 months from purchase, for one sitting. |
| Certification validity | 3 years. Renew with 75 CEUs per cycle and the $55 annual CE fee, or pass the current exam. Renewal details. |
| Language | English. |
| Credential | PDF certificate with QR code, public verification page, LinkedIn-ready credential ID. Issuer: CertLabz Certification Board. |
| Free resources | The exam objectives PDF and the ten sample questions PDF. |
| Workforce mapping | NICE Framework work roles: Secure Software Development (DD-WRL-003), Secure Systems Development (DD-WRL-004). O*NET occupations: Blockchain Engineers (15-1299.07), Software Developers (15-1252.00). Self-declared by CertLabz, not reviewed by NIST or CISA. See the full mapping. |
A signed, verifiable:
The CQRD is a performance-based exam: it includes performance-based questions alongside multiple-choice questions. Instead of only picking A, B, C or D, you read Solidity, order a build task, fix a configuration or privacy problem, and choose the right approach. It is computer adaptive, is proctored and timed at three hours, needs no mandatory course, and tests building on Quorum rather than reciting one tool's commands.
Enterprise Ethereum, Quorum overview, public versus private chains, consensus options, QBFT and Raft, networking and nodes.
Private transactions, Tessera, privacy groups, private state, data handling and trade-offs.
Solidity on Quorum, deployment, private contracts, tooling, testing and upgrades.
Permissioning models, node management, accounts and keys, monitoring, high availability and deployment.
Quorum skills are in demand across enterprise blockchain teams, and skilled Quorum developers command strong pay. Every route is shown here at once, so nothing is hidden behind a control you have to find.
United States pay reported by Glassdoor, checked September 2026. Pay varies by location, employer and experience, and no certification guarantees a salary.
| CertLabz CQRD | Blockchain Council Certified Quorum Developer | |
|---|---|---|
| What it is | Certification exam | Course and certificate |
| Computer adaptive | Yes | No |
| Hands-on PBQs | Yes | No |
| Scope | Quorum, vendor neutral | Quorum |
| Vendor neutral | Yes | Yes |
| Proctored | Yes | Varies |
| Questions | 120 | Not published |
| Time | 180 min | Not published |
| Pass mark | 700 of 900 | Not published |
| Course required | No | Included |
| Exam voucher | $199 | About $199 |
Details compiled September 2026 from the Blockchain Council pages; that credential is a self-paced course and certificate that does not publish a separate exam voucher price, question count or time limit, while the CQRD is a computer adaptive, performance-based exam at $199; product names and trademarks belong to their owners; CertLabz is not affiliated; confirm current details with each provider.
Six reasons this credential is worth your time, and worth an employer's attention.
One price for the exam, set by its level. Bundles add the study guide and hands-on practice at a saving.
Secure checkout by Stripe. Prices in USD. Sign in or create a free CertLabz account at checkout.
Every form is drawn from a bank of more than 130 items to these exact weights, whichever adaptive route you take. Filter by the area you want to study.
The exam runs in three stages. Your score on each stage selects the difficulty of the next, so a strong candidate is stretched and a struggling one is measured fairly rather than swamped. No two candidates sit the same paper. Harder questions carry more weight, so a scaled score means the same thing whichever route you took.
Each exam can have up to 5 to 12 performance-based questions, drawn fresh on every attempt, alongside the multiple-choice questions. A PBQ is a task rather than a list: you read Solidity, order a build task, fix a configuration or privacy problem, or choose the right approach. They are scored all or nothing, so partial guesses do not pass.
The CQRD is vendor neutral and describes Quorum tooling and clients generically, naming products only as examples. It tests the Quorum development judgement that transfers across the enterprise Ethereum ecosystem.
Yes. Where a capability such as a privacy manager or a consensus option is involved, it is described by what it does, not tied to one product.
700 out of 900. Results are reported on a scale of 100 to 900, and 700 corresponds to answering 72% of the exam correctly.
There is no waiting period between a failed first attempt and a second attempt. Buy another voucher and sit the exam again when you are ready, and it will draw a fresh adaptive form from the bank. See the CertLabz Certification Retake Policy.
Yes, after three years. Keep it current by logging 75 CEUs during the cycle and paying the $55 annual CE fee before expiry, or by passing the current exam again.
The exam objectives PDF and the ten sample questions PDF. The CQRD Official Study Guide is a $50 ebook, included in two of the bundles. Hands-on practice comes with the All Access plan, included in the Complete bundle.
A laptop or desktop with a webcam and microphone, Chrome, Edge or Firefox, a stable connection, and a quiet private room for three hours. Phones and tablets are not supported.
CQRD is a continuing-education certification, like the CE credentials from CompTIA and ISC2. It is valid for three years from the day you pass. To keep it, log 75 continuing-education units during the cycle and pay the $55 annual CE fee before your expiry date. Or pass the current version of the exam again. Earning a higher-level CertLabz certification renews it too, the way CompTIA certifications stack.
CEUs are logged from your CertLabz dashboard with supporting evidence. A certification that lapses can be reinstated only by passing the current exam.
Buy a voucher, study the objectives, sit the exam when you are ready. Your credential is issued the moment you pass.