Senior Java Developers – AWS

Join Plexus Tech. We are looking for technical professionals with in-depth knowledge of software design, patterns, and architectures. Specialist

Experience with AWS and the ability to make complex technical decisions are required.

REQUIREMENTS:

• java
• python
• hexagonal architecture
• clean code

 AWS:

• AWS Lambda – serverless functions (synchronous and asynchronous invocation, error handling, timeout, retries).
• Amazon API Gateway – expose Lambdas as REST or HTTP APIs.
• AWS IAM (Identity and Access Management) – for permissions management (execution policies, access to DynamoDB, logs, etc.).
• AWS CloudWatch – Lambda logs, metrics and alerts.
• AWS Step Functions (optional) – to orchestrate flows between Lambdas
• AWS SQS / SNS (optional but common) – for queues/messages between serverless services.

   DynamoDB:

• NoSQL data modeling (tables, partition keys, and sort keys).
• Secondary indexing (LSI and GSI).
• Throughput control (on-demand vs. provisioned)

   Continuous deployment of Lambda functions:

• Integration with Git repositories (GitHub, Bitbucket, CodeCommit).
• Basic CI/CD pipelines: GitHub Actions, AWS CodePipeline, etc.

   AWS Security and Best Practices

• IAM principal configuration
• Secure handling of environment variables and secrets (with AWS Secrets Manager or SSM Parameter Store).
• Structured logging and traceability (important in environments where things change a lot).