Senior Site Reliability Engineer – Cloud, Security & Automation

Hackajob Ltd; Leeds; On-site; GBP 61,000 - 101,000; Full time

Job summary

Hackajob Ltd. is seeking a Site Reliability Engineer to enhance the reliability, observability, and operability of customer‑facing digital banking services. You will join a distributed, cross‑functional team to reduce toil and improve resilience across microservices.

The role requires hands-on experience with Kubernetes, AWS, and monitoring stacks (Grafana/Prometheus/Elasticsearch/Kibana). Strong scripting and AI-assisted tooling experience are also valued.

Qualifications

• Formal training or certification in software engineering concepts.
• Proven software engineering experience in at least one language (Python/Go/Java).
• Experience designing, coding, testing and delivering software in at least one tech stack.
• Strong debugging and troubleshooting across distributed systems.
• Experience as an SRE or supporting production services in an SRE capacity.
• Working knowledge of microservice infrastructure: service discovery, ingress, networking, load balancing.
• Experience with Kubernetes and cloud computing services.
• Familiarity with observability tools (Grafana, Prometheus, Elasticsearch, Kibana, Jaeger).
• Ability to use AI-assisted engineering tools responsibly, validate outputs, and handle sensitive information securely.
• Preferred: AWS experience.
• Preferred: building internal reliability tooling (CLI tools, automation pipelines, operators).
• Preferred: improving developer experience via golden paths, templates, or reusable patterns.
• Preferred: applying AI to operational workflows with approved tools and patterns.

Responsibilities

• Improve reliability, monitoring, and alerting of mission-critical microservices.
• Reduce operational toil by automating processes and building reliable infra and tooling.
• Develop service metrics, SLIs/SLOs, error budgets, dashboards, and alerts.
• Work with development teams to design services for reliability and scale.
• Design self-healing and resiliency patterns (graceful degradation, rate limiting, circuit breakers, failover).
• Partner with engineering, product, and platform teams to promote reliability standards.
• Conduct performance testing and capacity planning to address bottlenecks.
• Incorporate metrics, alerting, logging, automation, resiliency, capacity in feature planning.
• Use approved AI tools for root-cause analysis, log/traces, runbooks, post-incident reviews, test scaffolding, docs.
• Develop AI skills: prompting, output validation, automation workflows, safe usage practices.

Skills

Python

Java

Go

Kubernetes

AWS

Prometheus

Grafana

Elasticsearch

Kibana

Service discovery

Load balancing

Cloud

Observability

AI tooling

Distributed systems

Microservices

Networking

Education

Software engineering certification

Tools

Kubernetes

Prometheus

Grafana

Elasticsearch

Kibana

AWS

Job description

Hackajob Ltd. is seeking a Site Reliability Engineer to enhance the reliability, observability, and operability of customer‑facing digital banking services. You will join a distributed, cross‑functional team to reduce toil and improve resilience across microservices.

The role requires hands-on experience with Kubernetes, AWS, and monitoring stacks (Grafana/Prometheus/Elasticsearch/Kibana). Strong scripting and AI-assisted tooling experience are also valued.