Parul Gangwar

Senior Software Engineer | Java/Kotlin | Distributed Systems | Fintech | London (UK Right to Work, No Sponsorship)

London, England, United Kingdom

About

Senior Software Engineer with 8+ years designing and shipping distributed backend systems at scale — spanning event-driven streaming pipelines, microservices architecture, identity & access platforms, and privacy/GDPR data-lifecycle systems. Hands-on across cloud-native infrastructure, high-throughput messaging, and scalable data stores in regulated fintech and e-commerce domains. Also building LLM orchestration pipelines for automated reasoning, code analysis, and remediation workflows across production microservice portfolios. Based in London, UK with full right to work — no visa sponsorship required.

Experience

  • Senior Software Engineer at American Express
    Oct 2022 - Present · 3 yrs 9 mos

    I played a pivotal role in enhancing privacy compliance and data management at American Express through innovative engineering solutions. • Designed and implemented a microservices architecture for processing 1M+ customer privacy preference changes, reducing processing time significantly. • Led the migration to a cloud-based event-driven architecture, achieving high reliability and low latency during data breach incidents. • Created an automated vulnerability patcher for Spring Boot microservices, streamlining the vulnerability management process.

  • Senior Engineer at Walmart Global Tech
    Aug 2021 - Sep 2022 · 1 yr 2 mos

    - Contributed to the Single Sign-On (SSO) platform handling millions of daily authentications using OAuth 2.0 and token-based session management, enabling seamless identity federation across 6+ services including Cart, Checkout, Order Management, and Last Mile. - Implemented role-based access control (RBAC) and secure API-gateway patterns for internal and external integrations, enforcing fine-grained authorization policies across Walmart's e-commerce platform. - Designed and developed the GDPR data-deletion orchestration layer for UK Groceries, coordinating compliant erasure of user profiles across multiple microservices with audit-trail logging and automated compliance verification. Built circuit-breaker and graceful-degradation patterns to maintain platform stability under peak traffic, while leading delivery of product requirements and mentoring junior developers on microservices best practices. Tech: Java, Spring Boot, Microservices, Kafka, Cosmos DB, OAuth 2.0, Service Mesh

  • Application Development Analyst at Accenture
    Mar 2018 - Jul 2021 · 3 yrs 5 mos

    I played a pivotal role in developing and maintaining applications that manage client data and insurance renewals at Accenture. • Managed MyBusiness platform functionalities, ensuring accurate data updates and risk management. • Developed backend systems for insurance platforms using C#, SQL, and Kentico, enhancing user experience. • Employed a test-driven approach to ensure high-quality code and application reliability.

  • Summer Intern at IFFCO Group
    Jun 2016 - Jul 2016 · 2 mos

    Developed a Microservice with Spring Boot, Rest API. I worked on majorly bug fixes during unit testing and e2e testing.

  • Summer Trainee at HP
    Jun 2015 - Jul 2015 · 2 mos

    Got trained in core Java programming.Also got acquainted with Advanced Java like Jframe, Japplet, networking, etc and worked on several projects like designing games and various web based applications