Network Engineer – Trading & Electronic Trading Infrastructure

MARGO is a tech-native consultancy delivering high value-added IT expertise to complex financial markets environments. We work on mission-critical trading and electronic trading infrastructures where performance, latency, resilience and automation are key success factors. Our consultants operate close to trading, application and infrastructure teams to design, transform and operate high-performance platforms. Joining MARGO means contributing to technically demanding transformation initiatives while benefiting from a human-sized structure, close follow-up and tailored career paths.

Responsibilities

Contribute to the re-architecture of trading and electronic trading network infrastructure to improve latency, scalability and resilience; Design and deploy network solutions following network-as-code principles; Produce and maintain high-level and low-level designs (HLD / LLD); Contribute to network automation initiatives using tools such as Ansible; Help standardise configurations, deployments and operational changes; Work closely with application and development teams to align infrastructure with system requirements; Support integration with market connectivity and broker networks; Participate in production support for trading network environments; Contribute to troubleshooting and root-cause analysis in production; Perform packet-level analysis to diagnose latency, packet loss or connectivity issues; Support monitoring, capacity planning and incident response activities; Help ensure high availability and operational stability of critical environments; Act as a point of contact between infrastructure, trading and application teams; Capture business and application needs and translate them into technical solutions; Collaborate with global teams and external vendors on implementations and upgrades; Contribute to knowledge sharing and operational documentation

Requirements

Experience in trading or electronic trading network environments; Hands-on expertise with network infrastructure and routing; Exposure to network automation or infrastructure-as-code practices; Strong understanding of IP networking, routing and multicast; Troubleshooting skills including packet-level analysis; Experience working on production-critical systems; Ability to work close to application and business teams; Strong ownership and communication mindset

Nice to have

Firewalls, proxies and load balancers (e.g. LTM, Web Gateways); Monitoring and observability tools; Capacity planning and performance optimisation; Large-scale trading or electronic trading infrastructures; Experience with Arista network environments; Exposure to infrastructure transformation programmes; CCIE certification or equivalent hands-on experience

Benefits

Access to high-impact trading and electronic trading infrastructure projects; Opportunity to contribute to architectural and automation initiatives; Roles combining engineering, production and application proximity; Close collaboration with trading and development teams; Human-sized consultancy with strong technical standards and long-term focus