Senior Lead SRE Engineer

Senior Lead SRE Engineer

Role Summary: We're looking for a Senior Lead Site Reliability Engineer to own and improve the reliability, performance, and security of our NGINX-based platforms. This role combines hands-on engineering with leadership—driving automation, observability, and best practices for traffic management and application delivery.

Key Responsibilities

• NGINX Expertise: Design, operate, and optimize NGINX/NGINX Plus for reverse proxying, load balancing, TLS termination, and caching.
• Reliability & Performance: Define and monitor SLOs/SLIs, troubleshoot latency and availability issues, and lead incident response.
• Automation: Implement Infrastructure-as-Code (Terraform, Ansible) and CI/CD pipelines for NGINX configuration and deployments.
• Security: Manage TLS certificates, enforce secure configurations, and integrate WAF/DDoS protections.
• Observability: Build dashboards and alerts using Prometheus/Grafana; enable teams with actionable insights.
• Leadership: Mentor engineers, review designs, and collaborate with product and security teams.

Requirements

• 8+ years in SRE/Platform roles, with deep NGINX experience.
• Strong Linux, networking (TCP/IP, HTTP/2), and performance tuning skills.
• Hands-on with IaC tools (Terraform, Ansible) and CI/CD workflows.
• Experience with Kubernetes ingress and cloud platforms (AWS/Azure/GCP).
• Familiarity with observability stacks (Prometheus, Grafana) and security best practices.

Nice to Have: NGINX Plus, WAF integration, API gateway experience, scripting (Python).

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

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.