Site Reliability Engineer - Payments Infrastructure

Description :

We are looking for a highly skilled site reliability engineer to manage and scale our on-premise payments infrastructure.

You will work on a hybrid environment spanning virtual machines and containerized workloads on bare metal, ensuring high availability, security, and performance for mission-critical systems.

Key Responsibilities :

- Operate and optimize virtualized environments (VMs) and containerized workloads (Docker on bare metal)

- Manage and scale middleware systems like :

1. Nginx (traffic routing, reverse proxy, load balancing)

2. Redis (caching, HA setup)

3. Kafka (streaming, partitioning, fault tolerance)

- Build and maintain CI/CD pipelines using Jenkins

- Manage infrastructure and application configurations using Git-based version control

- Ensure high availability, resilience, and performance tuning across systems

- Work on Linux system administration (RHEL/CentOS/Ubuntu)

- Implement and maintain automation frameworks using :

1. Ansible

2. Shell scripting

- Manage and troubleshoot networking components :

1. TCP/IP, DNS, Load balancing

2. Firewalls, WAF policies

3. Akamai

- Handle security and compliance requirements

- Maintain accurate inventory and asset management systems

- Participate in incident response, RCA, and system reliability improvements

- Collaborate with application, security, and DevOps teams

Required Skills & Qualifications :

Core Infrastructure :

- Strong hands-on experience with Linux system administration

- Experience managing on-prem data center environments

- Solid understanding of:

- Virtualization (VMware / KVM or similar)

- Bare metal provisioning

Containers & Middleware :

- Experience running Docker in production (non-Kubernetes setups preferred)

- Strong operational knowledge of :

1. Nginx

2. Redis

3. Kafka

4. RDBMS

5. Java

Observability, Alerting & Reliability :

- Design and manage observability platforms :

1. Elastic Stack (ELK)

2. Grafana / Prometheus stack

- Build and maintain :

1. Metrics, logs, and tracing pipelines

2. Dashboards for system health and business KPIs

- Develop intelligent alerting strategies :

1. Reduce noise (alert fatigue)

2. Improve signal quality

- Build correlation mechanisms / alert aggregation systems to :

1. Reduce MTTD (Mean Time to Detect)

2. Reduce MTTR (Mean Time to Recover)

- Drive proactive monitoring and anomaly detection

- Lead incident response, debugging, and RCA with data-driven insights

CI/CD & Version Control :

- Hands-on experience with :

1. Git (branching strategies, code reviews, infra-as-code workflows)

2. Jenkins (pipeline creation, build automation, deployment orchestration)

Networking & Security :

- Good understanding of :

1. Networking fundamentals (L3/L4 concepts)

2. Firewalls and WAF (rule tuning, debugging)

3. Experience handling secure production environments

Automation :

- Hands-on experience with :

1. Ansible

2. Shell scripting (bash)

Operations :

- Experience with : Monitoring, alerting, and logging systems