About

Work Experience

• Technology Lead, Platform Engineering, Brevan Howard

  Sep, 2021 - Present

  As the first infrastructure employee on the Systematic trading team at Brevan Howard, a multi-strategy hedge fund, I played a pivotal role in designing and implementing their trading infrastructure. I led the development of a hybrid trading platform that was used by 25 Portfolio Managers and more than 200 Data and Software engineers. Additionally, I helped recruit, hire, and mentor 15+ employees across the Linux, Windows, Network, DevOps, and SRE teams.

  • Pioneered the development of a RHEL 8 based Linux server environment, creating AMIs, satellite repositories, and Ansible roles.

  • Managed the migration from Amazon Linux 2 to RHEL 8, creating AMIs, satellite repositories, and Ansible roles. Collaborated with various lines of businesses and Portfolio Managers to migrate applications to RHEL.

  • Designed and built on-premise co-located data centers for global trading, collaborating with vendors to implement networking, computing, and storage solutions for trading in Futures and FX.

  • Automated the deployment of Deephaven in Ansible, reducing cluster deployment time from over 2 weeks to less than an hour, enhancing efficiency and scalability of the Data Platform.

  • Implemented a multi-account AWS global infrastructure, establishing resource and billing isolation boundaries for enhanced security and reliability. Collaborated with AWS support on a well-architected framework

  • Spearheaded the launch of the Systematic Data Platform on AWS, utilized by multiple Portfolio Managers and teams for trading strategies—deployed AWS infrastructure using Terraform and Ansible.

  • Led the launch of a Cloud-based Crypto trading platform, building infrastructure in AWS and establishing connectivity with exchanges to enable trading operations.

  • Onboarded multiple data vendors (Bloomberg BPIPE, Refinitiv, Reactive Markets, etc.) using VPC Endpoints, Private Links, S3 buckets, and SFTP/FTP, to ensure secure and efficient data access.

  • Contributed to the launch of the Equities trading platform on Kubernetes (EKS) and co-located hardware, utilizing ArgoCD for deployments, and providing self-service capabilities to developers and production engineers.

  • Orchestrated the migration from on-premise GitLab to GitHub Cloud, designing organization layout, team structure, and best practices. Documented guidelines for developers to reference.

  • Advocated for and implemented automation across infrastructure tasks, championing the GitOps methodology to ensure traceability, security, and efficiency through all Git commits, demonstrating a commitment to operational best practices.

  • Facilitated the integration of cutting-edge tools (GitHub, JFrog, AWS Secrets Manager, AWX Tower), boosting developer productivity and operational efficiency.

  • Played a key role in launching trading in Futures, FX, Equities, and Crypto, assisting over 25 Portfolio Managers to go live with trading. Provided tailored solutions and support to ensure smooth transitions.

• Director (Infrastructure), Mezocliq

  Sep, 2016 - Aug, 20214 years 11 months

  At Mezocliq, a no-code platform for building digital data solutions using open-source technologies, I worked closely with Java developers to design, deploy, monitor, and troubleshoot their applications. I led the project to migrate their applications to the cloud and spearheaded the containerization of their applications using Kubernetes. As the senior most Linux engineer, I had a significant role in building the team, including hiring and mentoring team members

  • Led the migration of company applications from bare metal to AWS, setting up network, compute, and storage components using Terraform for fast and repeatable deployments.

  • Containerized company applications using Kubernetes and Docker, collaborating with developers to write manifest files, package applications, and push Docker images to AWS ECR.

  • Implemented continuous delivery (CD) of multiple microservice applications using GitLab, Jenkins, Kubernetes, and ArgoCD, enabling developers to deploy applications with a single Git commit (GitOps).

  • Managed high-level day-to-day operations such as DNS changes, troubleshooting Ceph, Cassandra, Kafka, and Zookeeper errors, and addressing application issues, ensuring smooth infrastructure operations.

  • Migrated Ceph storage clusters from Fedora to Debian, automating installation with Ansible, and using the S3 Python API for data migration, ensuring seamless transition with minimal downtime.

  • Established a monitoring and logging solution using the Elastic stack, providing comprehensive insights into compute, network, security, and application metrics and logs.

  • Mentored junior team members on various technologies including Ansible, AWS, Ceph, Cassandra, Elasticsearch, Terraform, and Kubernetes, fostering skill development and team cohesion.

• Systems Engineer, Susquehanna International Group

  Feb, 2008 - Aug, 20168 years 6 months

  At SIG, one of the largest proprietary trading firms in the world, I served as a Senior Systems Engineer on the Linux, Virtualization, and Storage Engineering teams. During my tenure, I was instrumental in designing and deploying several high-impact solutions, including a multi-petabyte Lustre high-performance computing system, a unified monitoring solution, low latency trading infrastructure, and the virtualization of their database infrastructure.

  • Spearheaded the deployment of UNIX systems across diverse co-location sites, collaborating with networking and security teams to ensure optimized infrastructure for low-latency trading.

  • Automated the installation of an out-of-band management system (Idrac) for Dell servers using Bash scripting, significantly reducing configuration time for over 3000 physical servers.

  • Developed an automated solution in Perl and Bash to enable high availability of Oracle's OEM monitoring agent, enhancing system reliability and performance.

  • Orchestrated the migration of the Oracle database infrastructure to an EMC-Dell-OEL platform, automating configuration tasks using Python and Bash scripts, resulting in improved performance and scalability.

  • Collaborated with internal lines of businesses to optimize CPU affinity for applications, utilizing tools like CSET and Numactl, resulting in a ~20% reduction in latency for trading applications.

  • Led the adoption of Ansible as a configuration management and orchestration tool for the Unix team, deploying infrastructure and developing roles, modules, plugins, and playbooks using Python and YAML.

  • Designed and automated the build process for VMware ESXi servers, streamlining configuration and deployment tasks for the operations team.

  • Led the deployment of Lustre infrastructure for HPC needs, including SAN storage setup, MDS/OSS servers configuration, client setup, and Infiniband network setup. Conducted benchmarking tests using Iozone and Fio to optimize performance.

  • Developed a solution for monitoring multiple storage platforms (Netapp, EMC, and Pure storage) using Python, JSON, Graphite, and Grafana. This provided admins and users with comprehensive storage stats in a centralized dashboard.

Skills

Education