Principal Network Engineer

The Opportunity

We are continuously searching for exceptional Principal Network Engineers across India to help us design, build and evolve resilient, secure and highly scalable network infrastructure that powers critically important financial platforms and services.

While we may not have an immediate opening today, this dedicated Network Engineering Talent Community helps us connect with highly skilled network professionals early.

By joining our engineering community, you'll gain access to insights into our architecture, engineering culture and technology roadmap, and be among the first to move directly into advanced interview stages when a matching role becomes available.

What You'll Do (When You Join Us)

As a Principal Network Engineer, you will work on large-scale enterprise, cloud, data centre and financial market infrastructure environments requiring deep technical expertise and strong engineering rigor. You will act as a senior technical contributor, solving complex networking challenges and driving technical excellence across the network estate.

Architect & Design

• Design and build scalable, highly available network solutions across global enterprise, cloud and data centre environments.
• Develop technical designs for routing, switching, security, load balancing and network services platforms.
• Contribute to the evolution of network architecture, ensuring solutions are secure, resilient and operationally efficient.
• Evaluate emerging technologies and engineering patterns to support future business requirements.

Engineer & Optimise

• Provide deep technical expertise across Routing & Switching technologies including BGP, OSPF, MPLS, VPN, GRE, NAT and Multicast.
• Perform complex troubleshooting and root cause analysis across production, cloud and hybrid network environments.
• Improve network reliability, performance and scalability through monitoring, telemetry, observability and data-driven optimisation.
• Analyse packet captures and network telemetry data to resolve challenging technical issues.

Automate & Transform

• Develop and maintain network automation solutions using Python, Ansible, Terraform, Git and Infrastructure-as-Code practices.
• Drive operational efficiency through automation, standardisation and engineering guidelines.
• Improve network deployment, configuration and operational processes through software engineering principles.
• Support the adoption of modern DevOps and Site Reliability Engineering approaches within network services.

Collaborate

• Work closely with Architecture, Cloud, Security, Infrastructure, Product and SRE teams to deliver strategic network initiatives.
• Translate business and technical requirements into scalable network solutions.
• Participate in design reviews, technical discussions and complex infrastructure projects across global teams.
• Provide domain expertise for critical incidents, upgrades and transformation programmes.

Share Expertise

• Act as a recognised technical expert within your domain.
• Contribute to engineering standards, technical documentation and knowledge-sharing initiatives.
• Support fellow engineers through technical guidance, peer reviews and collaborative problem-solving.
• Champion engineering excellence, reliability and continuous improvement.

What You'll Bring

Technical Expertise

• Extensive experience designing, implementing and supporting complex enterprise network environments.
• Expert knowledge of Routing & Switching protocols including BGP, OSPF, MPLS, HSRP, GRE, VPN and Multicast technologies.
• Strong experience with Cisco, Juniper, Arista and enterprise networking platforms.
• Deep understanding of Data Centre Networking, VXLAN, Cisco ACI, Software Defined Networking and network segmentation.
• Experience with network security technologies including firewalls, secure connectivity and policy-based controls.
• Knowledge of cloud networking across AWS, Azure and hybrid cloud environments.
• Strong packet analysis and troubleshooting skills with expertise using packet capture and observability tools.
• Experience with Python, Ansible, Terraform and network automation frameworks.
• Exposure to highly available, low-latency or financial services environments is highly desirable.
• CCIE certification or equivalent expert-level networking experience is preferred.

Engineering Principles

• Build With Purpose – Start with why. Define the problem clearly and deliver substantial outcomes.
• Customer Driven – Build solutions that improve reliability, performance and customer experience.
• Technically Adventurous – Solve complex engineering challenges and continuously raise technical standards.
• Learn and Be Curious – Know the latest networking, cloud and automation technologies.
• Act as Owner – Take accountability for system reliability, resilience and long-term sustainability.
• Lead with Data – Use telemetry, operational metrics and performance insights to guide decisions.
• Investigate – Understand root causes and maintain attention to technical detail.
• Build Responsibly, Deliver Incrementally – Prioritise secure, scalable and reliable solutions.
• Collaborate to Achieve – Partner effectively across teams while contributing technical expertise.

How We Hire

Our process is skills-focused and structured to be fair and consistent. Candidates typically participate in technical interviews that explore network architecture, routing and switching, network security, automation, troubleshooting, cloud networking and real-world engineering problem solving. We also assess alignment with our Engineering Principles and approach to solving complex technical challenges.

Why Connect Now?

Skip the Line

Candidates in this talent community are prioritised for fast-track evaluation when suitable Principal Network Engineering opportunities become available.

Exclusive Insights

Receive invitations to network architecture forums, engineering roundtables, technical webinars and technology roadmap sessions.

Career Alignment

We will connect you with opportunities aligned with your interests, including Network Architecture, Cloud Networking, Network Security, Data Centre Networking, Infrastructure Automation, Low-Latency Networking and Platform Engineering.

How to Join

Upload your CV along with a short note about:

• The network engineering challenges you most enjoy solving.
• Your preferred areas of expertise: Routing & Switching, Cloud Networking, Network Security, Data Centre Networking, Network Automation or Low-Latency Infrastructure.
• Any relevant certifications, automation expertise or large-scale network transformation projects you have contributed to.

We will review your profile and connect for an informal conversation to better understand your technical expertise, interests and career aspirations.

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

Career Stage:

Manager

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.