We have an exciting opportunity for a Network Support Engineer to join our IT team here at Harrods. You will provide technical support for Harrod's Data Network across LAN, WAN, Wireless, Security and SDA environments About the Role The More ❯
with Developers, Traders, and other teams Disaster Recovery and Business Continuity planning Core experience required: Strong experience with Linux/Unix Understanding of Networking – TCP/IP, DNS, UDP, Multicast etc. Scripting and Automation – Bash, Python, Shell, Ansible etc. Experience with Jira and Confluence (or other ITSM tools) is highly desirable Please apply ASAP for more information. Additional details: Seniority More ❯
8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills More ❯
london, south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills More ❯
Slough, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
8+ years experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills More ❯
PTP, NTP and PPS Packet capture solutions, including optical taps, SPAN, tap aggregation and timestamping Packet Analysis using Wireshark Interconnecting for market data and order entry in exchange collocations Multicast configuration and troubleshooting Automation tools, including Git, Python, Golang, Jenkins, Terraform and Ansible Why should you apply? Highly competitive compensation plus annual discretionary bonus Lunch provided (via Just Eat for More ❯
practical knowledge of FIX. Ideally, familiarity with native exchange protocols Experience in SQL (PostgreSQL, MySQL, MS SQL) Familiarity with Kdb+ is a plus Working knowledge with TCP/IP, multicast, tcpdump, clocking (PTP, NTP) – a plus Bachelor’s Degree in Computer Science, Engineering or related subject Highly organized, detailed, control oriented, enjoys solving problems and brings in a "take charge More ❯
practical knowledge of FIX. Ideally, familiarity with native exchange protocols Experience in SQL (PostgreSQL, MySQL, MS SQL) Familiarity with Kdb+ is a plus Working knowledge with TCP/IP, multicast, tcpdump, clocking (PTP, NTP) – a plus Bachelor’s Degree in Computer Science, Engineering or related subject Highly organized, detailed, control oriented, enjoys solving problems and brings in a "take charge More ❯
practical knowledge of FIX. Ideally, familiarity with native exchange protocols Experience in SQL (PostgreSQL, MySQL, MS SQL) Familiarity with Kdb+ is a plus Working knowledge with TCP/IP, multicast, tcpdump, clocking (PTP, NTP) – a plus Bachelor’s Degree in Computer Science, Engineering or related subject Highly organized, detailed, control oriented, enjoys solving problems and brings in a "take charge More ❯
london (city of london), south east england, united kingdom
Squarepoint
practical knowledge of FIX. Ideally, familiarity with native exchange protocols Experience in SQL (PostgreSQL, MySQL, MS SQL) Familiarity with Kdb+ is a plus Working knowledge with TCP/IP, multicast, tcpdump, clocking (PTP, NTP) – a plus Bachelor’s Degree in Computer Science, Engineering or related subject Highly organized, detailed, control oriented, enjoys solving problems and brings in a "take charge More ❯
practical knowledge of FIX. Ideally, familiarity with native exchange protocols Experience in SQL (PostgreSQL, MySQL, MS SQL) Familiarity with Kdb+ is a plus Working knowledge with TCP/IP, multicast, tcpdump, clocking (PTP, NTP) – a plus Bachelor’s Degree in Computer Science, Engineering or related subject Highly organized, detailed, control oriented, enjoys solving problems and brings in a "take charge More ❯
guidance to both technical and non-technical stakeholders. Passion for Performance : A strong passion for optimizing low-latency networks, with hands-on experience in network transport and routing protocols (Multicast, OSPF, BGP, TCP/UDP). Adaptability in Multi-Vendor Environments : Expertise working with a variety of low-latency network switches and devices, ensuring best-in-class performance across diverse More ❯
Orchestration: Strong expertise in container security and Kubernetes (multi-cluster/global deployment is a plus). Distributed Systems & Messaging: Knowledge of clusters, storage, Kafka, Aeron, and experience with multicast or HPC. Automation & IaC: Proficiency in Python, Golang, or Rust with experience in IaC tools and immutable infrastructure. Continuous Delivery & Config Management: Familiarity with FluxCD, ArgoCD, and custom CD deployments. More ❯
including both baremetal local storage and Network attached storage technologies such as Ceph and Weka Some Other Highly Valued Skills May Include Timesync: GPS, PTP, NTP Networking: Routing protocol, Multicast, RoCE, Infiniband Programming – Ansible and Python (for automation, and non-performance centric code) Programming in C/C++ (low latency and network centric preferred) Functional, imperative or object-oriented language More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
11037 Citibank, N.A. United Kingdom
work effectively as part of a larger team and be able to communicate at an appropriate level depending on the types of people involved. Good understanding of Network Protocols – Multicast/TCP/IP. Knowledge of Java is a good add-on. Functional testing Desired Skills Low Latency Market Data Skills – VELA or any other low-latency platform. Working knowledge … of working in the finance industry would be beneficial but not essential. Sound programming approach with unit test testing, code reviews and following agile methodology. Low latency, network concurrency, multicast, and server configuration knowledge are additional useful skills. Including configuration of 10GB Network Interfaces such as SolarFlare using OnLoad. Knowledge of Equities products (stock, futures, options, swaps etc) would be … work effectively as part of a larger team and be able to communicate at an appropriate level depending on the types of people involved. Good understanding of Network Protocols – Multicast/TCP/IP. Knowledge of Java is a good add-on. Functional testing Desired Skills Low Latency Market Data Skills – VELA or any other low-latency platform. Working knowledge More ❯
troubleshooting and optimizing network performance. Ensure security best practices are upheld. What You’ll Need: Strong experience in network architecture and engineering (Cisco CCNP or equivalent). Expertise in multicast networking, firewalls, and cloud-based solutions. Familiarity with broadcast technologies (IP video delivery, encoding, VoD). A proactive mindset with excellent problem-solving skills. This is a full-time, permanent More ❯
best practices in test-driven development What you'll bring: Strong expertise in Java, Linux optimisation, and CPU/memory management In-depth knowledge of networking protocols (TCP, UDP, Multicast, FIX) Experience in electronic/algorithmic trading and FX products Background in automated testing, API design, and DevOps workflows Ability to translate business needs into scalable technical solutions Flexible working More ❯
