Senior Site Reliability Engineer- AWS, Snowflake

CompanyCognizant

LocationLondon Colney, England, United Kingdom

Posted At3/9/2026

UK Visa Sponsorship Analytics

Analytics are greyed out due to low classification confidence (33.0%).

Occupation Type

Telecoms and related network installers and repairers

Occupation Code Skill LevelMedium Skilled

Sponsorship Salary Threshold

£41,700 (£21.38 per hour)

Standard minimum applies

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Description

Job Summary

As an Infra Dev Specialist you will play a crucial role in optimizing and maintaining our infrastructure systems. With a focus on Splunk Admin SRE Grafana ELK and Dynatrace AppMon you will ensure seamless operations and contribute to the companys growth. Your expertise will drive innovation and efficiency enhancing our media domain capabilities in a hybrid work model.

Responsibilities

Lead the administration and optimization of Splunk environments to ensure high availability and performance.
Oversee the implementation of Site Reliability Engineering practices to enhance system reliability and scalability.
Provide expert guidance in configuring and maintaining Grafana dashboards for real-time monitoring and visualization.
Collaborate with cross-functional teams to integrate ELK stack solutions for effective log management and analysis.
Utilize Dynatrace AppMon to monitor application performance and proactively address potential issues.
Develop and implement strategies to improve infrastructure efficiency and reduce downtime.
Conduct regular assessments of system health and performance identifying areas for improvement.

Drive innovation by researching and implementing new technologies and methodologies.

Ensure compliance with industry standards and best practices in infrastructure management.

Facilitate knowledge sharing and training sessions to enhance team capabilities and understanding.

Support media domain projects by leveraging technical expertise to optimize infrastructure solutions.

Contribute to the companys purpose by enhancing system reliability ultimately benefiting society through improved media services.

Maintain documentation of infrastructure processes and configurations for future reference. Qualifications

Possess extensive experience in Splunk Admin demonstrating ability to manage complex environments.

Have a strong background in Site Reliability Engineering showcasing skills in system reliability enhancement.

Show proficiency in Grafana with a proven track record of creating effective monitoring solutions.

Demonstrate expertise in ELK stack highlighting ability to manage and analyze large volumes of data.

Exhibit knowledge in Dynatrace AppMon with experience in application performance monitoring.

Experience in the media domain is advantageous providing insights into industry-specific infrastructure needs.

Adaptability to hybrid work model ensuring effective collaboration and productivity in diverse environments.

Certifications Required

AWS core services expertise (EC2 S3 IAM VPC CloudWatch Lambda).

Snowflake operations tuning cost governance incident response dbt operations & model dependency debugging with Grafana Splunk