Senior SDET (Software Development Engineer in Test) - (Active SC clearance)

We have an exciting job opportunity for Senior SDET (Software Development Engineer in Test) role at London, UK.

Role: Senior SDET (Software Development Engineer in Test)

Location : London, UK

Work Type: Hybrid - 03 days onsite in a week

Active SC Clearance

Role Summary

We are looking for a hands-on Senior SDET to develop, maintain, optimize, and execute enterprise-grade automation solutions supporting critical banking payment systems. The successful candidate will contribute to framework modernization initiatives and develop scalable automation across UI, API, Database, MQ, Kafka, and Messaging layers.

Experience Required

• 7-10+ years overall experience
• 5+ years dedicated automation experience
• Strong software engineering mindset
• Experience developing automation frameworks

Key Responsibilities

Automation Development

• Develop reusable automation libraries
• Build automation framework components
• Create robust API automation suites
• Develop UI automation using Selenium POM
• Optimize automation execution performance

Messaging & Integration Testing

• Validate Kafka message flows
• Validate MQ integrations
• Verify XML payloads
• Implement XSD validation
• Validate ISO20022 messages

Test Data Management

• Build reusable test data solutions
• Maintain centralized test datasets
• Support integration and E2E testing

Reporting & Diagnostics

• Enhance framework reporting
• Implement structured logging
• Support root-cause analysis
• Improve failure diagnostics

CI/CD

• Integrate automation suites into pipelines
• Support automated deployments
• Maintain continuous testing capabilities

Documentation

• Create technical documentation
• Maintain framework documentation
• Support knowledge-sharing initiatives

Mandatory Technical Skills

Skill

• Java
• JavaScript
• Python
• Selenium
• Karate
• API Automation
• CI/CD
• SQL
• Git

Integration Testing Skills

Skill

• Kafka
• MQ
• XML
• XSD Validation
• Messaging Validation

Development Skills

• Java OOP
• JavaScript
• Python
• Design Patterns
• Framework Development
• Test Automation Architecture
• Build Tools (Maven/Gradle)

UI Automation Skills

• Selenium
• Page Object Model
• Cross-browser Testing
• UI Validation
• Automation Best Practices

API Automation Skills

• REST APIs
• Karate
• JSON Validation
• Data Validation
• Service Integration Testing

Database Skills

• Oracle
• SQL Queries
• Database Validation
• Data Reconciliation

Domain Experience

Preferred

• Banking
• Financial Services
• Payments

Highly Desirable

• RTGS
• ISO20022
• SWIFT
• Financial Messaging

Good-to-Have Skills

• Linux
• Jenkins
• Azure DevOps
• JIRA
• Xray
• Reporting Frameworks
• Observability Tools

Soft Skills

• Debugging
• Analytical Thinking
• Communication
• Team Collaboration
• Problem Solving
• Documentation

Preferred Certifications

• ISTQB Foundation/Advanced
• Java Certification
• Agile Certification

Deliverables

• Automation Scripts
• Framework Components
• API Automation Suites
• UI Automation Suites
• Database Validation Utilities
• XML/XSD Validators
• Test Data Assets
• CI/CD Pipelines
• Technical Documentation