Real-Time Financial Network Engineer

Transaction Network Services (TNS); Illinois; On-site; USD 90,000 - 100,000; Full time

Benefits offered by this job

Medical and dental coverage

Life insurance

Paid holidays and vacations

401K plan with company match

Job summary

Transaction Network Services (TNS) is seeking a Network Engineer to join their Financial Markets Network Engineering team in Illinois. This position involves supporting real-time trading and market data connectivity across global networks. Candidates should have 3+ years experience with Cisco, Juniper, and Arista, strong Layer-2 and Layer-3 knowledge, and skills in multicast and packet capture. The role offers an estimated salary of $90,000–$100,000 and comprehensive benefits, fostering a culture of personal growth and technology passion.

Qualifications

• 3+ years of experience supporting global IP networks.
• Hands-on experience with Cisco, Juniper, and Arista platforms.
• Strong Layer-2 knowledge (VLANs, trunking, STP, LACP).
• Strong Layer-3 fundamentals (BGP basics, OSPF/IS-IS concepts).
• NAT fundamentals and troubleshooting experience.
• Multicast fundamentals (IGMP, PIM).
• Packet capture and analysis skills.
• Strong written and verbal communication skills.

Responsibilities

• Support add/move/change (MAC) activities across production financial-markets networks.
• Configure and troubleshoot Layer-2 and Layer-3 network services.
• Assist with BGP, OSPF, and IS-IS routing changes and troubleshooting.
• Support NAT configuration and fault isolation.
• Assist with IP multicast for market data distribution.
• Perform packet capture and traffic analysis.
• Assist with Layer-1 troubleshooting.
• Follow disciplined change, documentation, and operational processes.
• Work with senior engineers on automation-enabled configuration.

Skills

Global IP networks support

Cisco platforms

Juniper platforms

Layer-2 knowledge

Layer-3 fundamentals

NAT troubleshooting

Multicast knowledge

Packet capture skills

Communication skills

Education

CCNA or CCNP

NCIA or JNCIP

Job description

Transaction Network Services (TNS) is seeking a Network Engineer to join their Financial Markets Network Engineering team in Illinois. This position involves supporting real-time trading and market data connectivity across global networks. Candidates should have 3+ years experience with Cisco, Juniper, and Arista, strong Layer-2 and Layer-3 knowledge, and skills in multicast and packet capture. The role offers an estimated salary of $90,000–$100,000 and comprehensive benefits, fostering a culture of personal growth and technology passion.