Senior Infrastructure Engineer

5+ years experience

About Galacticflow Research

Galacticflow Research is an HFT firm trading digital assets across global markets. We research, develop, and operate our own trading strategies and technology.

A few things about us:

Independent by choice. No VCs on our cap table. We have reserved that space for our employees instead.
We are self-taught. We learn, experiment, and build from first principles.
We compete to win. We set a high bar, care deeply about performance, and constantly push ourselves to do better.
Trust over micromanagement. We trust people to do what is right, deliver results, and uphold their integrity.
Great work deserves great rewards. Top-tier compensation and generous performance-linked bonuses.

About the Role

At GalacticFlow Research, a proprietary high-frequency trading (HFT) firm, we design and operate ultra-low-latency trading systems that process vast amounts of crypto market data in real time. We are looking for a Senior Infrastructure Engineer to optimize and support our high-performance infrastructure across cloud and bare-metal environments.

Responsibilities

Maintain and optimize Linux-based low-latency trading infrastructure across on-prem and cloud environments
Tune kernel parameters, NUMA settings, CPU affinity, and networking stack to achieve nanosecond-level latencies
Automate server provisioning, configuration management, and deployments using Ansible and Terraform
Monitor and debug live trading issues, optimizing system performance to prevent downtime
Manage core infrastructure services (DNS, DHCP, NTP, LDAP, NFS) to ensure stability and security
Collaborate with quant researchers and trading teams to fine-tune infrastructure for optimal execution speeds
Participate in on-call rotations, ensuring 24/7 system reliability

Requirements

5+ years of experience in Linux systems administration, performance tuning, and troubleshooting.
Strong knowledge of Python and Bash scripting for automation and monitoring.
Deep understanding of networking (TCP/IP, multicast, low-latency optimizations, kernel tuning).
Experience with cloud platforms (AWS, GCP) and hybrid infrastructure setups.
Familiarity with monitoring and logging tools (Prometheus, Grafana, ELK stack).
Hands-on experience with debugging tools (perf, strace, eBPF, tcpdump, gdb).
Bachelor's, Master's, or PhD in Computer Science, Electrical Engineering, or a related technical field. Candidates with backgrounds from IITs are highly preferred.

Bonus