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Principal Security ArchitectCopper Technologies • London, England, United Kingdom
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Principal Security Architect

Copper Technologies
  • GB
    London, England, United Kingdom
  • GB
    London, England, United Kingdom
Jetzt Bewerben

Über

Copper has been building the standard for institutional digital asset infrastructure since 2018, focusing on custody, collateral management, and prime services.
Led by CEO Amar Kuchinad, Copper provides a comprehensive suite of custody, trading, and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets.
At the heart of Copper’s offering is Multi‑Party Computation (MPC) technology – the gold standard in secure custody.
Copper’s multi‑award winning custody system can be connected to centralised exchanges, DeFi applications, and even staking pools without the assets leaving the custody.
Built on top of this state‑of‑the‑art custody, ClearLoop is the first solution that overcomes counterparty risk with exchanges, enabling customers to trade and settle directly from the safety of their MPC‑secured wallets.
Copper has one of the strongest insurance coverages in the industry and the most robust security certifications.
Department/Team Purpose Copper provides institutional digital asset custody, settlement, and collateral management services across a wide range of blockchains and integrated venues. Information Security protects the firm’s platforms, client assets, and regulated entities across the group.
Role Purpose The Principal Security Architect is the senior technical authority for security architecture at Copper. The role reports to the CISO and partners closely with Engineering. The holder sets architectural direction, reviews and approves designs for major change, and acts as the firm’s reference point on the security of the systems, protocols, and integrations Copper depends on. The role is predominantly architecture and assurance, with limited hands‑on solution design in the cloud and integration space where reference patterns are needed.
Key Responsibilities
Hold formal security sign‑off authority for major changes to Copper’s platforms, infrastructure, and integrations.
Shape and maintain the security architecture patterns, principles, and reference designs that engineering teams build against.
Provide the senior technical security position in architectural and business decisions, including escalations where security and delivery pressures conflict.
Custody, signing, and cryptographic architecture
Provide architectural security leadership over Copper’s signing infrastructure, working alongside specialist engineering and cryptography teams. Scope covers the people, process, and operational design around MPC‑based signing. Solid conceptual grounding in threshold cryptography and signature schemes is required; cryptographer‑level work is not.
Review and approve changes to transaction construction, signing flows, approval policy, and key lifecycle operations.
Provide architectural assurance over chain‑of‑trust constructs adjacent to custody, including verifiable build pipelines, hardware‑backed code signing, and authenticator‑bound administrative paths.
Multi‑chain and integration security
Reason at architectural depth across the range of blockchains Copper supports, including EVM, UTXO, and account‑based non‑EVM families. This requires a working understanding of transaction construction, signing semantics, consensus assumptions, and validator and staking models across these environments, without being a protocol engineer in any of them.
Assess third‑party smart contract architectures, implementations, and audit reports to a level sufficient to understand the exploit and risk surface, without performing line‑by‑line code review.
Review first‑party integrations with partner networks, including those underpinning staking and similar on‑chain participation, and form a defensible security position on the operational and contract risk Copper inherits.
Settlement, collateral, and off‑exchange architecture
Provide architectural ownership of the security model for Copper’s settlement, collateral mirroring, and off‑exchange product surfaces.
Reason about the trust boundaries between Copper, venues, and clients, and ensure architectural controls match the obligations each side carries.
Identity and access architecture
Own identity and access architecture as a dedicated pillar of the role.
Set patterns for workforce, workload, and third‑party identity across Entra ID, federated SSO, OAuth2/OIDC, SAML, and modern authenticators.
Govern entitlement design, privileged access, and access models for contractors, vendors, and external operators.
Cloud and platform security
Maintain working architectural fluency in both AWS and Azure, including network topology, segmentation, secrets handling, and platform telemetry.
Produce reference patterns and, where needed, direct integration designs in the cloud and platform space.
Third‑party and protocol risk
Lead technical security review of vendors, integrated venues, and protocols, including challenge of assurances that do not stand up to scrutiny.
Support client and counterparty due diligence on the technical content most likely to be misrepresented or under‑specified.
Policy, regulatory, and assurance support
Maintain a working understanding of the regulatory regimes applicable to Copper’s licensed entities sufficient to translate architectural decisions into language Compliance and GRC can defend. Primary ownership of regulatory positioning sits elsewhere.
Contribute to security policy, standards, and control framework development as the senior technical reviewer.
Participate in resilience exercises and incident reviews where architectural input materially shapes the outcome.
Skills and Experience
Multi‑chain architectural literacy
– Able to reason across EVM, UTXO, and non‑EVM account‑based chains at the level of transaction construction, signing, consensus, and validator models. Comfortable assessing third‑party smart contract designs, implementations, and audit reports for exploit and risk surface without performing code review.
Custody and signing architecture
– Strong conceptual grasp of threshold signing, signature schemes, and key lifecycle. Able to design and challenge the operational architecture around signing, separation of duties, approval policy, key ceremony equivalents in MPC, and recovery, to a high standard.
Settlement and collateral architecture
– Demonstrable experience reasoning about settlement, collateral, and off‑exchange constructs, including trust boundaries between custodians, venues, and clients.
Identity and access architecture
– Senior‑level experience designing and governing identity across Entra ID, federated SSO, OAuth2/OIDC, SAML, and modern authenticators. Comfortable with entitlement governance and third‑party access design.
Cloud security
– Working architectural understanding of AWS and Azure, including the ability to produce reference patterns and limited direct integration designs.
Architectural authority and judgement
– Track record of holding sign‑off on significant designs, taking defensible positions under uncertainty, and owning residual risk.
Change review and assurance
– Comfortable reviewing the work of engineering peers, infrastructure changes, and vendor designs, and able to hold the line where it matters.
Communication
– Able to operate credibly with engineers, senior business stakeholders, auditors, and regulators in the same week, without losing precision at any of them.
Familiarity with chain‑of‑trust constructs including verifiable builds, reproducible build pipelines, and hardware‑backed code signing.
Awareness of the regulatory landscape relevant to digital asset custody and trading (e.g., FCA, FINMA, FSRA/ADGM, MiCA).
Compliance familiarity across ISO 27001, SOC 2, and NIST CSF/800‑53, with the ability to map controls cleanly between them.
Enterprise architecture grounding (TOGAF, SABSA) where it complements rather than replaces technical depth.
Why Copper? At Copper, we keep innovation, openness, and curiosity at the centre of everything we do. Bold ideas get the spotlight, learning is constant, and diversity shapes our team from the ground up.
We love a challenge and know how to have fun along the way. Collaboration is just as important as results – you’ll be surrounded by smart, driven colleagues in London and across our APAC, Switzerland, UAE, and US offices.
We believe in the value of hybrid working; we also embrace the adaptability of flexibly working.
Diversity and inclusion matter to us – they’re woven into Copper life. From employee‑led groups like Women at Copper to a dedicated committee focused on community and wellbeing, you’ll have a network that supports you from day one. Everyone’s voice matters.
Benefits
Paid Time Off – A minimum of 35 days of paid time off per year, inclusive of annual leave and public holidays. Employees also receive one additional day of annual leave for each year of service.
Comprehensive Medical Insurance – Inclusive of dental, optical, audiology, and mental health coverage, with medical history disregarded.
Life Insurance.
Enhanced Pension Contributions – Includes an enhanced employer matching contribution.
24/7 Employee Assistance Programme (EAP).
Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be. However we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets. Copper is a Disability Confident Employer; please let us know if you have a disability.
If you require us to provide any assistance during the recruitment process, we will be happy to accommodate.
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  • London, England, United Kingdom

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  • English
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