Site Reliability Engineering Specialist

About the role

We are seeking an experienced Platform SRE Engineer to support and maintain BT's RF Shaper & Coverage Analysis Platform, a cloud-native AWS solution used for coverage modelling, RF optimisation, network planning, geospatial analytics and operational decision support. The role is responsible for ensuring platform availability, reliability, security and performance while managing production incidents, upgrades, maintenance, disaster recovery and continuous service improvements. The successful candidate will provide operational ownership of a business-critical AWS analytics platform supporting RF engineering and coverage analysis workloads.The successful candidate will combine strong AWS operational expertise, data platform support experience, and SRE best practices with strong hands-on AWS experience supporting production-grade data, analytics and RF engineering platforms. They should be confident operating AWS services used across ingestion, orchestration, processing, governance, analytics and serving layers and understand the operational needs of geospatial transformation.

What you’ll be doing

• Own day-to-day operational support of the production platform.
• Monitor platform health, availability, performance and reliability using CloudWatch, CloudTrail and operational dashboards.
• Manage incidents, problems, root cause investigations and service restoration activities.
• Ensure platform SLAs, SLOs and operational KPIs are consistently achieved.
• Coordinate production support activities with engineering, business stakeholders and third-party suppliers.
• Proactively identify and resolve performance bottlenecks across AWS services and application components.
• Optimise platform throughput, scalability and cost efficiency.
• Implement capacity planning, trend analysis and performance tuning activities.
• Execute production deployments, upgrades, patches and platform maintenance activities.
• Support blue/green deployment strategies and automated release processes.
• Validate releases through smoke testing and post-deployment monitoring.
• Enhance logging, tracing and audit capabilities across the platform.
• Create operational runbooks, support documentation and recovery procedures.
• Drive continuous service improvement initiatives using operational metrics and trend analysis.
• Manage backup, recovery and restoration processes.
• Validate disaster recovery readiness through regular testing.
• Support multi-AZ and DR strategies across AWS regions.
• Ensure recovery procedures meet operational recovery objectives. (RTO and RPO)

Essential Skills / Experience

1. Strong hands-on experience operating and supporting enterprise-scale AWS cloud environments.

Demonstrable experience with:

• AWS Lambda
• Amazon EC2
• Amazon Fargate
• Amazon Aurora PostgreSQL / RDS
• Amazon S3
• Amazon DynamoDB
• AWS ElastiCache (Redis)
• Amazon CloudWatch
• Amazon Sagemaker
• AWS Step Functions
• AWS IAM
• Apache Airflow

1. Strong experience of supporting data analytics workloads and orchestration processes for large volume data ingestion, enrichment, aggregation and schema validation.
2. Experience supporting highly available cloud services in 24x7 production environments.
3. Understanding of observability tooling, distributed tracing and proactive monitoring.
4. GitOps experience with Gitlab CI/CD, SonarQube, Harbor and Nexus.
5. Strong understanding of networking, VPCs, load balancing, DNS and security controls.
6. Experience with Linux administration and containerised platforms.

BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.

BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.

Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.

We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.