QKTech Accelerates Digital Banking Using Intelligent Test Automation
Industry & Segment
Banking & Financial Services
Objective
To strengthen the bank’s digital reliability by implementing QKTech’s Continuous Assurance and Assurance Transformation framework that enhances quality, ensures seamless performance across digital journeys, and supports faster, risk‑free releases for Banking & Financial Services platforms.
Partners
Elastic
Client Overview
A leading private sector bank in India operates in the highly competitive financial services sector, where digital transformation and rapid product innovation are critical to maintaining market leadership. As the bank built its next-generation configurable platform, ensuring quality at speed became paramount to its digital strategy.
Engagement Overview
QKTech partnered with the bank to implement a comprehensive test automation strategy for their digital banking platform. The engagement focused on assurance transformation and continuous assurance, spanning multiple testing phases from sprint testing through pre-production validation.
The scope included end-to-end functional testing across APIs, Kafka-based event streams, and user interfaces, with automation serving as the foundation for accelerated delivery.
Business Challenges
Complex journey validation
The platform required validation of intricate topic chaining journeys, complete account lifecycles, and data enrichment at every integration hop, including comprehensive failure and fallout scenario testing.
Massive test data requirements
With payloads containing over 200 fields, generating accurate input data and expected results manually was time-consuming and error-prone, creating a significant bottleneck in the testing cycle.
Time travel complexity
The digital banking platform lacked a traditional system date concept, making it extremely difficult to validate data accuracy and integrity across different time scenarios.
Continuous testing at scale
Given these complexities, maintaining continuous testing velocity while ensuring comprehensive coverage seemed nearly impossible with traditional approaches.
QKTech’s Solution
QKTech implemented a comprehensive, automation-first solution for assurance transformation that addressed each challenge:
Unified framework architecture
- The customized solution was built around Carina, an open-source test automation framework to integrate seamlessly with Apache Kafka. This unified framework enabled the execution of journey tests, component-level tests, and contract-based payload validations within a single ecosystem. By consolidating testing capabilities across API, Kafka, and UI layers, the approach eliminated tool fragmentation, improved maintainability, and ensured consistent, end-to-end test execution.
Event-driven testing
- The solution included sophisticated event generators that published test events to Kafka topics, consumed topic messages across the chaining sequence, and performed automated assertions at each hop. This enabled validation of the complete event-driven architecture that powers modern digital banking.
Service virtualization
- To overcome dependencies on external systems and enable time-travel testing, QKTech implemented service virtualization that mimicked external responses and supported backdated account creation and future-dated postings, solving the time validation challenge.
CI/CD integration
- All automations were executed within the CI pipeline, with parallel execution capabilities (2-thread count) and comprehensive reporting through JSON outputs and QMetry integration for traceability.
QKTech’s Impact
Accelerated Digital Innovation
CUG achieved six months ahead of schedule, directly attributed to the automation-first strategy, providing a competitive advantage in the digital banking market
Quality Shift-Left Success
46% of defects caught and resolved in-sprint, dramatically reducing UAT complexity and post-release fixes that cost 4-5 times more according to IBM’s Systems Sciences Institute
Production Stability
Zero production defects from functional verification gaps, demonstrating robust quality assurance
Scalable Testing Foundation
Unified framework and automated data generation, establishing sustainable practices for continuous platform evolution
Results Achieved
90%
Standardization of Contract & Journey-Level Testing
80%
Reduction in Manual Test Data Effort
4+
custom analyzers implemented for relevance tuning
Zero
Production Defects from Functional Verification Gaps
Business Impact
Testing Excellence Metrics
- 226+ test cases automated at both contract and journey levels
- Test execution time reduced to 1.5-2 hours per round, delivering significant time savings for each testing cycle
- 46% of defects identified and fixed in-sprint, enhancing UAT quality
- Parallel execution enabled with 2-thread count for faster feedback loops
- Comprehensive coverage across six integrated journeys: account creation, disbursal fallout, free waiver, manual refund, repayment, and subsequent drawdown
Operational Transformation
- Zero production issues attributable to missed functional verification
- Automated test data generation for payloads with 200+ fields, eliminating manual bottlenecks
- CI/CD pipeline integration enabling continuous testing throughout development cycles
- Service virtualization supporting backdated and future-dated scenarios for time-travel testing
- Enhanced reporting through JSON outputs and QMetry integration, providing real-time traceability
Platform Modernization
- Customized automation framework that supports Kafka architecture .
- End-to-end validation spanning API, Kafka topic chaining, and UI layers
- Event-driven architecture testing with automated assertions at every integration hop
- Vault MSK validation, ensuring internal accounting accuracy
- Excel-to-JSON conversion utility enabling business-friendly test data creation
Quality Assurance Excellence
- Automated validation of complex topic chaining journeys and account lifecycles
- Data enrichment verification at each integration point with comprehensive failure scenario coverage
- Contract-level and journey-level testing standardization
- Comprehensive test evidence storage on S3 for audit and compliance purposes
- Systematic defect identification to reduce downstream quality risks
Innovation Highlights
The unified open-source automation framework approach emerged as a key innovation, enabling comprehensive validation of complex event-driven microservices architecture while maintaining testing velocity throughout rapid development cycles.
Our partnership established an automation-first testing foundation that supports the bank’s continued digital banking innovation while maintaining the rigorous quality and reliability standards essential for financial services excellence.
By embedding continuous validation into every stage of the delivery lifecycle, QKTech enables rapid digital innovation without compromising reliability. Learn how our Continuous Assurance services support always-on quality for modern banking platforms.
Strengthen your digital banking releases?
Schedule a free consultation with our quality engineering team.