AWS QA Engineer ( App Modernization & AI driven Testing)

Kryptos Technologies Ltd
Charing Cross, United Kingdom
yesterday

Role details

Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Charing Cross, United Kingdom

Tech stack

Java
JavaScript
API
Artificial Intelligence
Amazon Web Services (AWS)
Amazon Web Services (AWS)
Automation of Tests
Cloud Computing
Data Validation
Data Integrity
Persistent Data Structure
DevOps
Distributed Systems
Amazon DynamoDB
Github
Monitoring of Systems
Identity and Access Management
JSON
Load Testing
Microsoft PowerPoint
Regression Testing
Data Streaming
Integration Testing
Test Case Design
Test Data
Strategies of Testing
Data Ingestion
Postman
Spring-boot
Reliability of Systems
Generative AI
AWS Lambda
Event Driven Architecture
Integration Tests
Integration Frameworks
Kafka
Api Design
Cloudwatch
Api Gateway
Cucumber
Serverless Computing
Jenkins
Microservices

Job description

We are seeking a skilled AWS QA Engineer with strong experience in testing serverless and event-driven architectures. The role focuses on validating modern cloud-native applications built on AWS, ensuring high quality across application modernization programs, while leveraging AI-assisted testing using AWS Kiro., Functional & Automation Testing (AWS Serverless)

  • Design, develop, and execute test strategies and test cases for applications built on:
  • AWS Lambda, API Gateway
  • Amazon EventBridge
  • Amazon Kinesis Data Streams
  • Validate event-driven and streaming workflows, including message processing and data consistency.
  • Develop automated test scripts to validate:
  • API responses
  • Event flows and triggers
  • Data persistence in DynamoDB / S3

Event-driven & Streaming Validation

  • Create and execute test scenarios for:
  • Kinesis stream data ingestion and processing
  • Event orchestration via EventBridge
  • Validate end-to-end workflows across microservices and serverless components.
  • Perform integration testing and contract testing across services.

Application Modernization Testing

  • Support testing for modernized applications (legacy cloud-native).
  • Perform:
  • Functional testing
  • Regression testing (pre/post migration comparison)
  • System Integration Testing (SIT)
  • Validate API-driven and microservices-based architectures [AWS Server...sting v1.0 | PowerPoint]

AI-driven Testing (Kiro)

  • Leverage AWS Kiro for AI-assisted testing to improve productivity.
  • Use AI for:
  • Test case generation
  • Test data preparation
  • Automated validation and defect detection
  • Contribute to AI-enabled quality engineering practices.

Performance, Reliability & Security Testing

  • Execute:
  • Performance and load testing for serverless workloads
  • Resilience and failure scenario testing (event loss, retries, scaling)
  • Validate:
  • Security and access controls (IAM roles, authentication flows)
  • Data integrity and system reliability

Automation & DevOps Integration

  • Build and maintain automated testing frameworks for AWS workloads.
  • Integrate testing into CI/CD pipelines.
  • Enable automated validation for:
  • Serverless APIs
  • Event-driven systems
  • Ensure continuous testing and fast feedback cycles.

Requirements

Do you have experience in Test automation?, Core Testing & AWS Skills

  • Strong experience in QA / Automation testing for cloud applications
  • Hands-on experience with:
  • AWS Lambda
  • Amazon EventBridge
  • Amazon Kinesis Data Streams
  • API Gateway
  • DynamoDB and S3
  • Experience testing event-driven and serverless architectures
  • Test Automation & Tools
  • Experience with:
  • Automation frameworks (Jest framework, Java/Springboot, or similar)
  • API testing tools (Postman, REST clients)
  • Ability to:
  • Create automated test suites
  • Validate JSON-based inputs/outputs for APIs and events
  • Knowledge of:
  • BDD frameworks (Cucumber - good to have)

Application Modernization Testing

  • Experience in testing:
  • Microservices architectures
  • API-first systems
  • Strong understanding of:
  • Integration flows
  • Data validation across distributed systems

AI & Innovation

  • Exposure to:
  • AI-assisted testing (AWS Kiro preferred)
  • Test automation using GenAI tools
  • Interest in driving AI-enabled QA practices

DevOps & Engineering Practices

  • Experience integrating tests within:
  • CI/CD pipelines (GitHub Actions, Jenkins)
  • Familiarity with:
  • Infrastructure as Code validation (CDK)
  • Monitoring tools (CloudWatch), * AWS Certified (Developer or Cloud Practitioner)
  • Experience with:
  • Streaming platforms (Kafka/MSK)
  • Performance and security testing tools
  • Exposure to enterprise-scale AWS modernization programs

Apply for this position