Senior Security Operations Engineer

Cielo; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Quant is building a New York-based security team to run its On-Chain Money Initiative. The Senior Security Operations Engineer will anchor a 24/7 SOC, leading detection and response across SIEM/EDR, PKI lifecycle, and blockchain-intelligence integrations.

You'll monitor, triage, mentor on-shift engineers, and collaborate with Platform Reliability on Sev-1 incidents. Prior SOC experience, SIEM/EDR proficiency, and familiarity with Chainalysis, TRM Labs or Elliptic are highly valued.

Qualifications

• 5+ years in security operations or engineering with SOC shift experience.
• Hands-on experience with SIEM/EDR platforms (SentinelOne or equivalent) and PKI operations.
• Familiarity with blockchain-intelligence tooling (Chainalysis, TRM Labs, Elliptic).
• Relevant security certification (GIAC, CISSP) preferred.

Responsibilities

• Lead security monitoring, detection and triage during the shift across SentinelOne and the Fusion Firewall.
• Own day-to-day operation of the PKI certificate lifecycle.
• Operate and tune blockchain-intelligence provider integrations per TCH's election (Chainalysis, TRM Labs or Elliptic).
• Join joint bridges with Platform Reliability for combined security-and-availability Sev-1 events.
• Mentor Security Operations Engineers on-shift.

Skills

Security operations

SOC shift experience

PKI operations

Blockchain intelligence tooling

Education

Security certification (GIAC/CISSP)

Tools

SentinelOne

Chainalysis

TRM Labs

Elliptic

Job description

We're partnering with Quant, a global leader in digital transformation and technology solutions, seeking a Senior Security Operations Engineer to join their team.

Senior Security Operations Engineer

Role summary

The senior technical anchor of the 24/7 SOC: leads detection and response on-shift across the SentinelOne-integrated SIEM, the TCH-governed PKI certificate lifecycle, the Fusion Firewall threat-intelligence feed, and the blockchain-intelligence provider integrations (Chainalysis, TRM Labs, Elliptic).

Key responsibilities

• Lead security monitoring, detection and triage during the shift across SentinelOne and the Fusion Firewall.
• Own day-to-day operation of the TCH-governed PKI certificate lifecycle.
• Operate and tune the blockchain-intelligence provider integrations per TCH's election (Chainalysis, TRM Labs or Elliptic).
• Join joint bridges with Platform Reliability for combined security-and-availability Severity 1 events.
• Mentor Security Operations Engineers on-shift.

Required experience & qualifications

• 5+ years in security operations or engineering, including SOC shift experience.
• Hands-on experience with SIEM/EDR platforms (SentinelOne or equivalent) and PKI operations.
• Familiarity with blockchain-intelligence tooling (Chainalysis, TRM Labs, Elliptic or equivalent).
• Relevant security certification (e.g. GIAC, CISSP track) preferred.

Success measures

• Mean time to detect and respond, including joint Sev-1 events.
• Shift-coverage adherence.

About Quant

Almost all the money in the economy is commercial bank money, and almost none of it moves on chain. Quant is a leading provider of programmable money infrastructure, and our technology changes that: it lets banks issue, move and settle tokenized deposits around the clock, automatically and securely, while staying connected to the systems they already run on. It is already deployed in regulated environments with central and commercial banks in the UK and around the world, including work on the digital pound and the digital euro.

The Clearing House, whose networks clear and settle more than $2 trillion a day, has now selected Quant to power its On-Chain Money Initiative: a new interoperable payments network that will let financial institutions of all sizes clear and settle tokenized deposits, with connectivity to the RTP® and CHIPS® networks. Our technology provides the network's interoperability, orchestration and transaction-management layer, enabling payments that settle immediately and transactions that trigger automatically once agreed conditions are met.

Through our Tokenized Deposits-as-a-Service solution, banks of any size can join without building new infrastructure themselves. The network is expected to become available to participating institutions in the first half of 2027, with use cases across corporate treasury, liquidity management, cross-border payments and digital asset settlement. We are building the New York team that will run it.