Senior Infrastructure Linux Engineer

Job Overview

This position is part of the core Infrastructure team responsible for Arrowstreet’s managed core systems and platforms.  As a Senior Infrastructure Linux Engineer, you will be responsible for designing, configuring, deploying, and maintaining Infrastructure systems leveraged by all teams.

While providing exceptional maintenance and support to Arrowstreet’s systems and platforms, you will develop/deploy solutions that will continue to progress Arrowstreet’s DevOps practice. As a hands-on member, you will aid the acceleration of the DevOps practice within the Infrastructure Systems team and to internal clients. The Senior Infrastructure Linux Engineer is a part of the evolution from product management to service management. As the Senior Infrastructure Linux Engineer, you will drive execution of disciplined and standardized processes and tools addressing mission-critical capability gaps and opportunities for maximized efficiency. You will help identify trade-offs in deployment plans and any key day-to-day operational decisions impacting Arrowstreet’s overall success.

Responsibilities

• Provide Level 3 support to resolve escalated issues and as required in root cause discovery of production impacting events
• Work with security, compliance, and developers to align design with regulatory requirements.
• Maintain support and operational efficiencies for Arrowstreet’s UNIX based enterprise solutions.
• Design, implement, and maintain internal infrastructure solutions (on-premise and cloud-based).
• Develop and manage Infrastructure as Code (IaC) using Terraform, Ansible, Python or similar.
• Automate deployment, scaling, and maintenance of infrastructure resources.
• Ensure high availability, scalability, and security of internal platforms.
• Optimize build and deployment workflows to improve developer productivity.
• Optimize infrastructure performance for latency-sensitive applications, ensuring minimal downtime.
• Implement security best practices in CI/CD pipelines (e.g., secrets management, compliance checks).
• Implement observability, performance, monitoring, logging, and alerting solutions using tools like ELK, Grafana, and etc.
• Ensure compliance with internal policies and industry regulations (e.g., SOC1).
• Troubleshoot and resolve build, deployment, and integration issues.
• Assist in-house development teams with application/platform integration such as authorization / permissions, service configuration, network, and performance related inquiries (name resolution, firewall port flows, and load balancing).
• Identify virtual and physical infrastructure issues which impact the functionality of the application and hosting platform. A working knowledge of Active Directory, Docker, Kubernetes is desirable.
• Support internal teams in deploying and maintaining financial applications with high reliability.
• Technical representative for team managed services. E.g. Data Protection / Recovery, Identity services (Active Directory, SAML, OAuth2), Windows, Linux, Storage, Virtualization, Secrets Management, and etc.
• Develop and maintain technical documentation to support auditability and regulatory reviews.
• Evaluate and integrate DevSecOps that enhance security, compliance, and efficiency.
• Serve as the team’s escalation engineer for 3rd level support activities.
• Provide cross training to other operations engineers as required.
• Occasional evening or weekend work required.  After hours on-call support team rotation.

Qualifications

• Working in an Agile environment.
• 3+ years’ working in a Hybrid Cloud, Windows, and Linux environment.
• 3+ years’ experience with enterprise Linux distributions/development, preferably RedHat
• 2+ years’ experience with automation and/or infrastructure as code tools (Ansible or Terraform).
• 3+ years’ experience with a scripting language such as Bash, Python, and/or PowerShell.
• Expertise in supporting and debugging Kerberos authentication, including configuration, ticket management, and troubleshooting in an enterprise envi