Senior Software Engineer

Senior Software Engineer We are seeking an experienced and motivated Senior Software Engineer to join Mastercards AWS Platform Engineering Team. This role is critical in designing, building, and maintaining a scalable, secure, and highly available cloud platform on AWS. You will collaborate with cross-functional teams to ensure optimal platform performance, cost efficiency, and alignment with best practices.

The ideal candidate is expected to have a strong understanding of AWS services, DevOps practices, and infrastructure automation and to focus on enabling application teams to deliver value rapidly and securely.

The Role
Design, implement, and maintain a scalable multi-account AWS platform, leveraging services like AWS Organizations, VPC, IAM, EKS, EC2, S3, RDS, etc.
Develop and manage infrastructure using tools like CloudFormation/CDK.
Manage secure connectivity using technologies like AWS PrivateLink, Transit Gateway, and Direct Connect.
Implement and maintain secure access controls and guardrails using AWS Control Tower, Service Control Policies (SCPs), and IAM.
Engage and improve the lifecycle of the AWS platform and services -- from development to deployment, operation, and refinement.
Scale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.
Practice sustainable incident response and blameless postmortem.

All About You
3+ years of experience in AWS cloud engineering or similar roles.
Hands-on experience with AWS services like Lambda, EKS, EC2, RDS, S3, Route 53, etc.
Proficiency in Infrastructure as Code tools (CloudFormation/CDK).
Strong knowledge of networking in AWS (VPC, Direct Connect, PrivateLink, etc.).
Experience with CI/CD tools like AWS CodePipeline, Jenkins, BitBucket/GitHub, Artifactory, Sonarqube, etc.
Strong understanding of Object-Oriented Programming (OOP) principles and experience applying them in languages like Python or Java.
Scripting skills in Python, Bash, or similar languages.
Strong knowledge of the best practices around Logging, Monitoring, and Alerting solutions.
Experience with software deployment and configuration automation.
Expertise in designing, analyzing, and troubleshooting large-scale systems.
Ability to debug, optimize code, and automate routine tasks.
Systematic problem-solving approach, with effective communication skills and a sense of drive.

Preferred Qualifications
AWS certifications such as AWS Certified Solutions Architect, SysOps Administrator, or DevOps Engineer.
Familiarity with container orchestration platforms like Kubernetes or ECS.
Hands-on experience with AWS Control Tower, including setting up guardrails, managing Service Control Policies (SCPs), and configuring Landing Zones.
Knowledge of security best practices and frameworks