Techfellow Limited
Experienced Linux Systems Engineer | Global Digital Asset Trading Firm
Techfellow Limited, New York, New York, us, 10261
Experienced Linux Systems Engineer | Global Digital Asset Trading Firm
[Up to c. $325k Comp Package | Flexible Working Options - On-Site Preference]
Role Overview We’re representing a leading quantitative trading firm operating in the digital assets space, now hiring a Senior Linux Infrastructure Admin/Engineer to help evolve and maintain its high-performance compute estate. This position focuses on the resilience, scalability, and automation of both on-premise and cloud-based environments supporting low-latency trading and quantitative research. You’ll be part of a technically strong engineering group responsible for ensuring mission-critical systems remain stable, efficient, and secure. This is a hands‑on role involving deep work across Linux, automation, and distributed systems.
Key Responsibilities Oversee and enhance Linux-based server infrastructure, optimising performance across trading, research, and analytics platforms Administer and scale hybrid compute environments, covering on-prem clusters (e.g. HTCondor) and AWS-hosted workloads Build automation pipelines to manage configuration, provisioning, and lifecycle operations using Python, Bash, or Ansible Diagnose and resolve performance issues across compute, storage, and network layers to ensure high availability Strengthen security and compliance across the environment, applying consistent controls for patching, hardening, and access governance Develop and maintain operational documentation and scripts for disaster recovery and maintenance procedures Collaborate with software developers, researchers, and trading teams to design infrastructure that aligns with business priorities Apply observability practices to monitor utilisation, latency, and overall system health, driving proactive improvement
What You’ll Bring 4-12 years’ experience in Linux systems engineering or administration, ideally within performance-critical or trading environments Proficiency working with RHEL or Rocky Linux, with expertise in configuration, optimisation, and kernel-level troubleshooting Solid background in automation and scripting, particularly with Python, Bash, or Ansible Strong understanding of hybrid infrastructure spanning on-prem and public cloud platforms (AWS experience preferred) Knowledge of network fundamentals - including routing, packet capture, and latency optimisation Practical experience implementing security best practices around identity, access, and system integrity Familiarity with monitoring and observability stacks to maintain visibility across infrastructure performance (Preferred) Exposure to HTCondor or similar distributed compute frameworks (Preferred) Experience supporting real-time, low-latency, or HPC trading environments
Seniority level Mid-Senior level
Employment type Full-time
Job function Engineering, Information Technology, and Finance
Industries Financial Services, Capital Markets, and Investment Management
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Role Overview We’re representing a leading quantitative trading firm operating in the digital assets space, now hiring a Senior Linux Infrastructure Admin/Engineer to help evolve and maintain its high-performance compute estate. This position focuses on the resilience, scalability, and automation of both on-premise and cloud-based environments supporting low-latency trading and quantitative research. You’ll be part of a technically strong engineering group responsible for ensuring mission-critical systems remain stable, efficient, and secure. This is a hands‑on role involving deep work across Linux, automation, and distributed systems.
Key Responsibilities Oversee and enhance Linux-based server infrastructure, optimising performance across trading, research, and analytics platforms Administer and scale hybrid compute environments, covering on-prem clusters (e.g. HTCondor) and AWS-hosted workloads Build automation pipelines to manage configuration, provisioning, and lifecycle operations using Python, Bash, or Ansible Diagnose and resolve performance issues across compute, storage, and network layers to ensure high availability Strengthen security and compliance across the environment, applying consistent controls for patching, hardening, and access governance Develop and maintain operational documentation and scripts for disaster recovery and maintenance procedures Collaborate with software developers, researchers, and trading teams to design infrastructure that aligns with business priorities Apply observability practices to monitor utilisation, latency, and overall system health, driving proactive improvement
What You’ll Bring 4-12 years’ experience in Linux systems engineering or administration, ideally within performance-critical or trading environments Proficiency working with RHEL or Rocky Linux, with expertise in configuration, optimisation, and kernel-level troubleshooting Solid background in automation and scripting, particularly with Python, Bash, or Ansible Strong understanding of hybrid infrastructure spanning on-prem and public cloud platforms (AWS experience preferred) Knowledge of network fundamentals - including routing, packet capture, and latency optimisation Practical experience implementing security best practices around identity, access, and system integrity Familiarity with monitoring and observability stacks to maintain visibility across infrastructure performance (Preferred) Exposure to HTCondor or similar distributed compute frameworks (Preferred) Experience supporting real-time, low-latency, or HPC trading environments
Seniority level Mid-Senior level
Employment type Full-time
Job function Engineering, Information Technology, and Finance
Industries Financial Services, Capital Markets, and Investment Management
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