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Network Engineer

Confirmed live in the last 24 hours

Old Mission

Old Mission

201-500 employees

Global market maker in securities and derivatives

Financial Services
Data & Analytics

Senior, Expert

London, UK

Network Administration
IT & Security
Required Skills
Computer Networking
  • An undergraduate or an advanced degree in a quantitative field such as Computer Science, Engineering, or one of the hard sciences
  • 5+ years of experience in network engineering using Arista (preferred, not a must) or Cisco
  • Expert knowledge in routing and switching – BGP/OSPF/PIM/SM/DM/Multicast – Multicast experience is very important
  • Experience working in a low latency network environment highly preferred
  • Configuration management experience with Ansible/Salt/Chef/Puppet (Ansible is a must)
  • Python programming ability is required (there will be an overlap with the SRE on our code base)
  • Deep understanding of TCP/IP and the OSI model
  • Strong knowledge of monitoring tools such as Grafana, Graylog, NetBrain, Splunk, SNMP, Syslog, and sflow or equivalent
  • Strong documentation skills
  • Experience with packet capture analysis using Wireshark or tcpdump
  • Experience with dark fiber and DWDM technologies
  • Nice to have network security experience (e.g.: Palo Alto firewalls, SIEM, DUO, 802.1x, etc.)
  • Familiarity working in a Linux environment
  • Strong analytical and problem-solving skills
  • Great communication skills, both written and verbal ability to prioritize and multi-task in a fast-paced environment
  • Someone willing to work after hours and be on an on-call rotation. Our US Team is currently supporting global hours
  • Design, implement, and support our global network infrastructure
  • Monitor, troubleshoot, and identify solutions for any network related issues
  • Replace faulty network hardware components when required
  • Provide technical expertise to both internal and external users
  • Proactively improve our infrastructure by contributing to our automation efforts
  • Create and maintain documentation detailing the implemented network components as well as relevant procedures and other documentation
  • Deploy hardware networking switches on a larger scale
  • Architect and design our network infrastructure
  • Overall monitoring of our networking systems

Old Mission is a global market maker that utilizes advanced technology and proprietary systems to dynamically value individual securities and derivatives at the speed of modern markets, enabling them to price thousands of financial instruments globally and trade trillions of dollars of securities both on and off exchange. They have developed a market-making platform that allows them to work with the world’s largest exchanges, brokers, and institutional investors as a trusted partner, assisting them in transferring risk in a wide range of securities.

Company Stage


Total Funding



Chicago, Illinois



Growth & Insights

6 month growth


1 year growth


2 year growth



Competitive Salary

Discretionary bonus

Top tier Medical, Dental, Vision, Disability and Life Insurance paid for by the firm

401(k) with employer match

Full stocked kitchen, free breakfast and lunch everyday on-site

Tuition reimbursement

Flexible Spending Plan

Commuter Benefit Program