Software Engineer with 2+ years of experience building FinTech and payment workflow systems, invoice processing, settlement/reconciliation services, and cloud-backed platforms using Java, Spring Boot, React, Angular, AWS, PostgreSQL, MongoDB, and Kafka. I focus on secure APIs, reliable transaction processing, and strong operational visibility across payments environments. I’ve also built AI-assisted exception classification for invoice workflows, improved processing efficiency and duplicate detection, and automated CI/CD pipelines with Docker and GitHub Actions. I’m experienced in async processing, CI/CD release readiness, and optimizing database performance for high-throughput finance operations.

Disha Narayan

Software Engineer with 2+ years of experience building FinTech and payment workflow systems, invoice processing, settlement/reconciliation services, and cloud-backed platforms using Java, Spring Boot, React, Angular, AWS, PostgreSQL, MongoDB, and Kafka. I focus on secure APIs, reliable transaction processing, and strong operational visibility across payments environments. I’ve also built AI-assisted exception classification for invoice workflows, improved processing efficiency and duplicate detection, and automated CI/CD pipelines with Docker and GitHub Actions. I’m experienced in async processing, CI/CD release readiness, and optimizing database performance for high-throughput finance operations.

Available to hire

Software Engineer with 2+ years of experience building FinTech and payment workflow systems, invoice processing, settlement/reconciliation services, and cloud-backed platforms using Java, Spring Boot, React, Angular, AWS, PostgreSQL, MongoDB, and Kafka. I focus on secure APIs, reliable transaction processing, and strong operational visibility across payments environments.

I’ve also built AI-assisted exception classification for invoice workflows, improved processing efficiency and duplicate detection, and automated CI/CD pipelines with Docker and GitHub Actions. I’m experienced in async processing, CI/CD release readiness, and optimizing database performance for high-throughput finance operations.

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Experience Level

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Intermediate
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Language

English
Advanced
Hindi
Intermediate

Work Experience

Software Engineer at Bill.com
November 1, 2025 - Present
Built Java Spring Boot invoice ingestion APIs with MongoDB validation and AWS S3 document storage, reducing manual upload effort by 31% across vendor payment workflows. Developed React/TypeScript front-end queue interfaces integrated with REST APIs to help reviewers prioritize duplicate invoices, payment holds, and missing supplier data. Integrated Python preprocessing with OpenAI API prompt templates and vector search to classify duplicate invoice patterns, cutting repetitive manual review by 24% while preserving approval controls. Secured Spring Boot microservices using OAuth2, JWT, and JUnit/Mockito with integration testing to validate authorization paths prior to vendor payment workflow releases. Automated Docker-based CI/CD pipelines with GitHub Actions and CloudWatch deployment checks to improve AWS release visibility across Agile staging and production readiness cycles.
Software Engineer at Pine Labs
January 1, 2022 - August 1, 2023
Constructed Java Spring Boot settlement APIs using Hibernate, JPA, and PostgreSQL data models, reducing payout preparation time by 34% across daily reconciliation cycles. Mapped SQL transaction states for authorizations, captures, refunds, and chargebacks to improve payout traceability when merchants disputed settlement differences after closure windows. Added Kafka notification consumers and Redis caching for merchant payment alerts, enabling 28% higher peak-hour volume while preventing duplicate messages during campaigns. Refined Angular/TypeScript onboarding screens connected to REST services, synchronizing KYC, bank details, and settlement activation steps. Containerized Spring Boot services for Kubernetes deployments with AWS RDS PostgreSQL integration, shortening rollback recovery by 21% during settlement processing windows. Optimized PostgreSQL indexes and Spring Data queries for high-write settlement tables to reduce payout report latency by 19% during risk and operations revie

Education

Master in Computer Science at University of California Davis
September 1, 2023 - June 1, 2026
Bachelor in Computer Science at B.M.S. College of Engineering
July 1, 2019 - July 1, 2023

Qualifications

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Industry Experience

Financial Services, Software & Internet

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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