Security Engineer- Crypto High Frequency Trading - Oxford Knight
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Key skills for this role
About the Role
A global trading firm is seeking a Security Engineer with 3-15 years of experience to protect and enhance security of trading infrastructure, internal systems, and crypto operations.
Key Skills for This Role
Responsibilities
- Design, implement, and maintain security controls across Linux based trading and research environments
- Lead efforts in system hardening, network segmentation, identity management, and incident response
- Develop and manage detection, monitoring, and alerting systems for system and crypto specific threats
- Conduct regular vulnerability assessments, threat modeling, and penetration testing across infrastructure and smart contract interfaces
- Secure integration points between on prem, cloud, and crypto custody systems (e.g. HSMs, MPC wallets)
- Collaborate with developers to ensure security best practices in code, build pipelines, and container environments
- Investigate security incidents and perform forensic analysis when required
- Automate routine security operations using Python, Bash, or Ansible
- Manage compliance and operational controls for key exchanges, APIs, and wallets used in trading operations
Requirements
- 3 15 years of experience in security engineering or systems administration in Linux environments (Rocky Linux preferred)
- Deep understanding of network security, firewalling, VPNs, and intrusion detection systems
- Proven experience with cloud security (AWS preferred), including IAM, key management, and VPC hardening
- Strong knowledge of Linux hardening, system logging, patch management, and secure automation
- Strong scripting and automation skills in Python, Bash, or Ansible
- Knowledge of crypto specific attack surfaces exchange API security, private key management, and wallet infrastructure (preferred)
- Familiarity with blockchain programming models (EVM, Solana) and smart contract vulnerabilities (preferred)
- Experience conducting security audits, code reviews, or penetration testing in production environments (preferred)
- Awareness of compliance frameworks (SOC2, ISO 27001) in trading or financial contexts (preferred)
Full Job Posting
Overview
- My client is a global trading firm focused on systematic trading and venture investing all within the digital assets space.
- They are seeking a Security Engineer with 3 15 years of experience to protect and enhance the security of trading infrastructure, internal systems, and crypto operations.
- This role combines traditional systems security, application and network defense, and blockchain specific threat modeling.
Key Responsibilities
- Design, implement, and maintain security controls across Linux based trading and research environments.
- Lead efforts in system hardening, network segmentation, identity management, and incident response.
- Develop and manage detection, monitoring, and alerting systems for system and crypto specific threats.
- Conduct regular vulnerability assessments, threat modeling, and penetration testing across infrastructure and smart contract interfaces.
- Secure integration points between on prem, cloud, and crypto custody systems (e.g. HSMs, MPC wallets).
- Collaborate with developers to ensure security best practices in code, build pipelines, and container environments.
- Investigate security incidents and perform forensic analysis when required.
- Automate routine security operations using Python, Bash, or Ansible.
- Manage compliance and operational controls for key exchanges, APIs, and wallets used in trading operations.
Required Qualifications
- 3 15 years of experience in security engineering or systems administration in Linux environments (Rocky Linux preferred).
- Deep understanding of network security, firewalling, VPNs, and intrusion detection systems.
- Proven experience with cloud security (AWS preferred), including IAM, key management, and VPC hardening.
- Strong knowledge of Linux hardening, system logging, patch management, and secure automation.
- Strong scripting and automation skills in Python, Bash, or Ansible.
Preferred Skills
- Knowledge of crypto specific attack surfaces exchange API security, private key management, and wallet infrastructure.
- Deep understanding of private key management: best practices for storage, encryption, retrieval, signing, and generating private keys; familiarity with hardware wallets and multi sig solutions such as Gnosis Safe and Squads; best practices for cold storage.
- Familiarity with the programming model of the primary blockchains including EVM and Solana; understanding of Solidity (and/or Vyper) programming; familiarity with common vulnerabilities (e.g. reentrancy, integer overflows, flash loan exploits, front running/MEV, access control flaws); experience con
- Understanding how Ethereum and Solana work at the consensus and execution layer; awareness of cross chain bridges, their security assumptions, and risks; ability to evaluate protocol designs (DEXes, lending platforms, stablecoins) for systemic weaknesses; experience securing blockchain nodes, custod
Soft Skills & Culture Fit
- Analytical and methodical problem solver with a proactive mindset.
- Comfortable in high pressure, real time trading environments.
- Strong communication skills, with the ability to collaborate across infrastructure, trading, and software teams.
- Desire to continually improve and automate security as code mindset.
- High ownership and initiative; curiosity, intellectual honesty, and rapid learning; clear, direct communication; working together toward shared goals no ego, no politics.
Compensation & Benefits
- Very competitive compensation, with strong upside based on contribution and performance.
- Competitive holiday allowance.
- Free daily Deliveroo lunch.
- High spec office and technology.
- Team socials.
- Global company offsites and development opportunities.
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