Senior Systems Architect (Contract role)
Epsilon
5 - 10 years
Bengaluru
Posted: 10/12/2025
Job Description
We are looking for an expert cloud system engineer for one of our global healthcare enterprise customers.
The role AWS System Architect is a key role in building and implementing customer infrastructure from a ground-up approach and defining the futuristic roadmap for the next 5 years. This role is as exciting as this engineer would be joining the outstanding group of multiple global AWS cloud architects across the regions.
Responsibilities:
AWS Expertise
- Define infrastructure strategy and plan, which includes hardware, networking and software (OS, Application, security, monitoring) on AWS Cloud
- Continuous monitoring and optimization of resources on the cloud platform, Infrastructure sizing for the application
- Disaster planning hot switching, cold switching, backup & restore
- Implementing system and application audit processes
- Writing shell scripts to accomplish sys admin tasks (Templates, Cloud formation,
- Setup and maintain Linux, Unix OS based servers, configure hardware and software based firewall
- Setup, configure and maintain database (MySQL, Oracle, Mongo DB), Setup, configure and lead web/app servers Apache, NGINX, IIS.
- Performance tune web/app servers. Setup, configure and maintain DB and webserver clustering
- Automate network, DB, webserver/app server monitoring & alert configuration. As required, setup and configure SMTP, DNS, SSL, SFTP
- Tackle webserver, DB, network issues related to fault, performance, security
- Implement or deploy any software libraries or dependencies you may need during the course of your work
Qualifications:
- API Development & Integration
- Design, develop, and deploy RESTful on AWS using API Gateway.
- Integrate APIs with external systems (e.g., Salesforce, Veeva, Marketo) and internal databases (DynamoDB, RDS or equivalent experience).
- Ensure APIs are secure, scalable, and optimized for performance.
- API Platform Management
- Build and maintain the API layer using AWS services like API Gateway and Lambda.
- Implement versioning strategies to handle API changes without impacting consumers.
- Monitor, fix, and optimize API performance.
- Security & Compliance
- Implement authentication and authorization (e.g., OAuth 2.0, AWS Cognito, API Gateway with IAM).
- Ensure compliance with security standard processes (encryption, audit logs, and rate limiting).
Required Technical Skills
- API Development: Node.js (or Python/Java), REST APIs
- AWS Services: API Gateway, Lambda, DynamoDB, S3, RDS, CloudWatch
- Security: AWS IAM, Cognito, Secrets Manager, OAuth 2.0
- Good to have:
- CI/CD Tools: AWS CodePipeline, CodeBuild, GitHub Actions (optional)
- IaC: CloudFormation, AWS CDK, or Terraform
Educational qualification:
- Graduate or postgraduate degree in Computer Science or Engineering, System Admin certification - AWS certified solution architect, LPIC, RHCE, VCP6-DCV, network certification like CCNA, ITIL certified,
Experience:
Experience: 5 8 Years
- API Development: One should have experience working with API REST services design and development for over 5 years
- API Gateway Design: One should have hands-on implementation experience using AWS API Gateway services using Lambda for over 3 years (API Gateway, Lambda, DynamoDB, S3, RDS, CloudWatch)
- Programming skills for API development: One should have experience designing API using Python/Node.js/Java for over 4 years
- AWS Security: One should have deep implementation experience AWS IAM, Cognito, Secrets Manager, OAuth 2.0
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