Tech Lead - AWS

Hello Professional, Our client is looking Tech Lead - AWS for Long Term project in Portsmouth, NH below is the detailed requirements. Job Title: Tech Lead - AWS Location: Portsmouth, NH Duration: Long Term Job Description: • Design build and operate serverless APIs and event driven services on AWS API Gateway Lambda Step Functions EventBridge • Integrate document ingestion OCRML extraction and generativeAI pipelines normalize extracted data to a common schema • Build tooling and UIs for human in the loop validation React Type Script frontends backend APIs • Ensure security observability scalability and cost efficiency across services IAM VPCs monitoring tracing CICD Granular Skills • Core AWS serverless platform • Hands on experience with AWS Lambda Nodejs or Python runtime including cold start optimization memory tuning and concurrency limits • API Gateway REST andor HTTP APIs routing authorization request response transformations throttling and caching • Event driven services Event Bridge SNS and SQS for asynchronous pipelines retry semantics DLQs and atleast once exactly once considerations • Orchestration AWS Step Functions Standard and Express for coordinating multistep workflows and long running jobs • Storage Amazon S3 for object storage lifecycle policies versioning presigned URLs and understanding of S3 performance and consistency model • Databases DynamoDB single table design GSIs transactions andor RDS Postgres MySQL depending on relational needs familiarity with choosing the right persistence model • IAM security Least privilege IAM policies resource based policies KMS for encryption and secure access patterns • Generative AI ML and document extraction • Experience integrating large language models LLMs and generative AI APIs eg OpenAI Anthropic AWS Bedrock or selfhosted models and designing safe costefficient prompt strategies batching and caching • Basic familiarity with document OCR and extraction tools IE AWS Textract Tesseract and third party OCRIDP Intelligent Document Processing platforms • Knowledge of structured information extraction approaches prompt engineering for LLMs retrieval augmented generation RAG text embeddings and vector similarity search • Data normalization schema mapping designing canonical schemas entity extraction schema matching and validation and transformation pipelines • API design and eventing • RESTful andor GraphQL API design best practices versioning pagination error handling idempotency and specdriven development OpenAPI AsyncAPI • Idempotent operations concurrency control optimistic locking and sequence guarantees where required • Event modeling designing domain events event contracts event versioning and event driven architectures with durable delivery EventBridge SNSSQS Kafka • Frontend and human in the loop tools • Frontend frameworks React preferred TypeScript component libraries and state management for building validation UIs and dashboards • UX for human in the loop designing review approvere ject workflows diffing extracted vs original content confidence indicators and bulk validation tools • Micro Frontend Implement micro frontends to compose UX components as independently deployable versioned modules • Analytics visualization integrating chartsgraphs for accuracy metrics error rates model drift indicators leveraging tools like PowerBI or Tableau • Observability reliability and security • Monitoring tracing CloudWatch metricslogs XRay or OpenTelemetry tracing structured logging and building dashboards alerts for SLOs and error budgets • Testing CICD automated testing unit integration contract tests deployment pipelines GitHub Actions Cloud Formation CDK canary bluegreen deployments • Security best practices encryption at restin transit secrets management input validation rate limiting and OWASP considerations • Cost optimization measuring and optimizing for Lambda compute costs S3 lifecycle DynamoDB capacity modes and API Gateway charges • Engineering practices soft skills technical oriented • Infrastructure as code AWS CloudFormation or CDK for reproducible deployments • API contract testing and schema validation OpenAPI JSON Schema and consumerdriven contracts • Collaboration working with product ML teams and QA to iterate on extraction models and validation workflows