AYSHA LASMIN K FAZUL

• Working on Wallet Banking FinTech platform using Java, Spring Boot, REST APIs, Microservices, MySQL, Kafka, S3 and MongoDB.
• Developed and enhanced Wallet-to-Wallet (W2W), Wallet-to-Bank (W2B), and Bank-to-Wallet (B2W) transaction flows including
refund processing with validation, reconciliation, and asynchronous event handling using Kafka, improving transaction reliability
and eliminating race conditions in concurrent transfers.
• Built secure microservice communication using JWT tokens, closing a key data-integrity gap and strengthening protection of
sensitive wallet data across distributed services.
• Implemented wallet transaction history and ledger modules, giving customer support and finance teams full visibility into
transaction tracking and reporting for the first time.
• Designed and implemented request and response logging for third-party API integrations with MongoDB persistence,
significantly cuting the time needed to trace and resolve third-party integration issues.
• Developed Customer Free Withdrawal functionality with configurable business rules, limits, and validations, reducing manual
exception handling for withdrawal requests.
• Implemented Customer Wallet Footprint tracking integrated with Shield for fraud detection, behavioral analysis, and risk
monitoring, strengthening the platforms real-time fraud defenses.
• Developed and implemented customer and merchant risk assessment during onboarding and re-KYC, directly supporting AML
compliance and reducing manual review effort for the compliance team.
• Extracted and processed customer, merchant, and transaction reports for reporting, reconciliation, and compliance, replacing
manual data pulls with a repeatable process.
• Configured HashiCorp Vault for secrets management, eliminating hardcoded credentials and closing a recurring security-audit
finding.
• Provided production support including bug fixes, root cause analysis, and continuous enhancement, consistently meeting
incident-resolution SLAs and reducing recurring defect classes.
• Integrated Dtone APIs for bill payment and mobile top-up services end-to-end (lookup, validation, error handling,
reconciliation), delivering a new revenue-generating service line for the platform.
• Developed comprehensive unit and integration test cases using JUnit 5, Mockito, and MockMvc, achieving high code coverage
and materially reducing regression defects reaching production.
• Participated in the complete Agile Software Development Life Cycle (SDLC) from requirement analysis through development,
testing, CI/CD deployment, and production support.

• Worked in R&D on Wallet Manager product involving system design, backend development, and enhancements, contributing
core features that shaped the product roadmap.
• Designed, developed, and maintained scalable Java applications using Core Java, Spring Framework, and Spring Boot, supporting
the platforms move to a more modular, maintainable architecture.
• Built and managed RESTful APIs and system integrations using Apache Camel for inter-service communication, improving
consistency across integration points.
• Created and managed database tables, indexes, packages, and functions; performed SQL tuning and performance optimization,
improving query performance on high-traffic tables.
• Prepared unit, system, and regression test cases following TDD practices, catching defects earlier in the development cycle and
reducing rework.
• Handled defects related to Java, JavaScript, HTML, and CSS and performed post-build troubleshooting, maintaining release
stability across cycles.
• Prepared technical documentation and supported CI/CD pipelines, improving handover clarity for new team members and
downstream teams.
• Worked closely with cross-functional teams including business analysts, QA engineers, and DevOps teams to align delivery with
business requirements.
• Collaborated with cross-functional teams in an Agile/Scrum environment to deliver new features and production enhancements
on schedule.