Principal Network Engineer

Role Responsibilities & Key Accountabilities:
- Leads projects priorities, deadlines, and outcomes.
- Utilises deep knowledge of site reliability, software engineering, programming languages, tooling, frameworks, infrastructure and systems for each task.
- Leads designs of software components, systems, and features to improve the availability, scalability, latency, and efficiency of LSEG’s services.
- Leads sustainable incident response and production improvements for LSEG.
- Provides mentorship and advice to other team members on leading availability and performance of critical services, building automation to prevent problem recurrence, and building automated responses for non-exceptional service conditions.
- Mentors and trains other team members on design techniques and coding standards, and cultivate innovation and collaboration.
- Writes and reviews highly optimised and accurate code for LSEG products and solutions and provides feedback and suggested improvements to team members.
- Partners with architects to decompose a solution for technology systems and products
- Is regarded as the point of contact in their domain by showing significant depth of knowledge and expertise in technology and develops knowledge other domains to act on linkages and dependencies.
- Proactively continues to build and apply relevant domain knowledge that may relate to workflows, data pipelines, business policies, configurations and constraints
- Supports essential processes while ensuring high quality standards are met
Qualifications & Experience:
- Degree in Computer Science, Software Engineering or Electronics / Electrical Engineering, or equivalent
- Significant experience in software development in one or more programming languages

Job Description (Job advert content)

Position Summary

As the High-Skills Network Technical Lead, your main responsibility will be to ensure the ongoing support and reliability of all components within the LSEG ecosystem, including platforms, networks, applications, and services. In this role, you will provide 4th-line support to the Network Products and Services functions, ensuring the operational stability and adaptability of the LSEG global network. Your key focus will be on creating and maintaining software automation that improves the reliability and availability of digital platforms and their software delivery pipelines.

Role Responsibilities

You will play a meaningful role in designing, building, and maintaining systems, software, and applications across various domains. Your goal is to achieve the highest quality outcomes.

Independently, you’ll make technical design and amendment decisions, leading the workload effectively.

By analysing data and understanding business requirements, you’ll translate them into technical requirements, ensuring alignment with infrastructure and network capacity needs.

You’ll complete relevant reporting documentation, ensuring it adheres to both internal and external standards.

Collaborating closely with other business areas, you’ll schedule and coordinate capacity and network upgrades, meeting service level objectives.

When vital, you’ll lead upgrades, coordinating efforts with internal teams and third parties.

Building accurate documentation and monitoring system performance are essential to contribute optimally to business activities and continuous improvement.

You’ll support the deployment of emergent engineering patterns across development teams.

Contributing to creating solutions, you’ll coordinate design work within the infrastructure and network domain.

Preferred Skills and Experience:

A bachelor’s degree or equivalent experience in an IT-related field is essential.

Previous roles in architecture or engineering are valuable.

Significant experience in technology-focused positions is crucial.

Extensive knowledge of routing and switching protocols, with a preference for CCIE certification, is highly desirable.

Proven years of experience in network products and services, ideally working with Cisco, Juniper, and Arista technologies while actively pursuing further accreditation, is important.

Expertise spanning LAN, WAN, HSRP, NAT, MPLS, VPN, GRE, BGP, and OSPF is vital.

Knowledge of multicast concepts, including IGMP, RP, and PIM, is beneficial.

Familiarity with low-latency technologies commonly deployed in the financial sector is advantageous.

Excellent knowledge of network Packet analysis and Packet Capture tools gives to operational efficiency.

Experience with Data Centre Networking, including Software-Defined Networking (SDN), Cisco ACI, VxLAN, and related technologies, is valuable.

Understanding cloud environments and possessing knowledge of network security, including standard processes, is beneficial.

Familiarity with load balancing technologies, TCP/IP, and multicast in internet environments is important.

Proficiency in required Service Management processes, ideally with ITIL knowledge, is advantageous.

Exposure to the financial sector and its associated technologies is valuable.

Proficiency in Python and Ansible allows for streamlined tasks.

Strong spoken and written English language skills, combined with client management abilities, supply to successful collaboration

Proud to share LSEG in the India is Great Place to Work certified (Jun ’25 – Jun ’26).

Learn more about life and purpose of our company directly from India colleagues’ video: Bengaluru, India | Where We Work | LSEG

Career Stage:

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.