The Opportunity
You'll own the network infrastructure that connects Nascent's trading systems to exchanges, colocations, and internal platforms — the physical and logical fabric that every microsecond of execution depends on. This is a hands-on build-and-operate role: you'll design low-latency network topologies, manage colocation cross-connects and exchange connectivity, maintain precision time synchronization, and keep firewall and routing policy tight. You'll work alongside systems engineers, SREs, and quant infrastructure teams who treat deterministic performance as a first-class engineering discipline.
This isn't a ticket-queue seat inside a large NOC. You'll be one of two network engineers with direct ownership over architecture decisions, vendor relationships, and the tooling you build to monitor and automate the stack — designing connectivity from scratch, not just maintaining what someone else built. The problems are real: packet captures at the switch port, PTP drift investigations, firewall policy reviews that directly affect trade flow — and you'll have the autonomy to solve them end to end. This position must be geographically located within +/- 3 hours EST.
Responsibilities
- Own colocation connectivity: cross-connects, exchange feeds, and carrier relationships across production colo facilities.
- Design and maintain low-latency L2/L3 network topologies for trading infrastructure.
- Configure, troubleshoot, and optimize BGP and OSPF routing in production.
- Maintain precision time synchronization (PTP / IEEE 1588) across trading and infrastructure systems.
- Manage firewall policy (Cisco ASA, Palo Alto, or equivalent) — changes that directly affect production traffic paths.
- Write Python tooling for network automation, configuration management, and operational monitoring.
- Perform packet capture and protocol-level troubleshooting (tcpdump, Wireshark).
- Build and maintain runbooks, network diagrams, and infrastructure documentation.
- Participate in the on-call rotation and own incidents end to end, from triage through post-mortem.
About you
- You've worked in latency-sensitive, colocation, or trading environments — you understand why microseconds matter and how network decisions land on execution.
- You design infrastructure from scratch rather than only operating what someone else built.
