DevOps Engineer

**Key Responsibilities:** Design, provision, and manage AWS infrastructure \- EC2, RDS, S3, API Gateway, Lambda, ElastiCache, Cognito, SNS, SES, CloudWatch, WAF • Configure and maintain VPC \- subnets, security groups, NACLs, NAT gateways, routing tables • Implement and manage Blue/Green deployment strategy via AWS CodePipeline and CodeDeploy • Set up and maintain Docker containerisation \- Dockerfiles, docker\-compose, container registry (ECR) • Configure lower environments \- Development, Staging, Production \- with environment\-specific configurations • Manage Git repositories and branching strategy \- enforce GitFlow, branch protection rules • Implement Infrastructure as Code \- Terraform or AWS CloudFormation • Configure and manage AWS WAF \- OWASP rule sets, IP blocking, rate limiting • Set up comprehensive monitoring \- CloudWatch dashboards, Grafana, alerting, log aggregation • Implement auto\-scaling \- EC2 Auto Scaling Groups, RDS read replicas for peak traffic • Manage SSL/TLS certificates \- ACM, certificate rotation, HTTPS enforcement • Manage IAM \- roles, policies, least\-privilege access, MFA enforcement • Conduct regular security audits \- vulnerability scanning, patch management • Manage database backups \- RDS automated backups, point\-in\-time recovery, S3 backup policies • Configure AWS SES for production email \- domain verification, DKIM, SPF, DMARC • On\-call support for production incidents \- incident response, root cause analysis, post\-mortem **Qualifications:** • Bachelor's degree in Computer Science, Software Engineering, or related field • 2\+ years of DevOps or cloud infrastructure experience • AWS certifications \- SysOps Administrator, DevOps Engineer, or Solutions Architect strongly preferred • Experience supporting fintech or payment\-grade infrastructure is a strong plus • Terraform Associate certification is a plus