Sunava Pattanayak

About Sunava Pattanayak

I am an engineer specializing in financial transaction infrastructure and large-scale distributed systems, with over 13 years of experience designing platforms that power digital payments and financial operations.At BILL.com, I lead the architecture and development of backend systems that enable vendor payments, transaction orchestration, and financial workflows at scale. My work focuses on building resilient payment infrastructure, improving transaction reliability, and guiding engineering teams in delivering scalable and high-impact systems.Previously, I worked on payment and authorization infrastructure at Visa, contributing to systems that support secure and high-volume financial transactions across global payment networks.Throughout my career, I have focused on solving complex engineering challenges in fintech infrastructure, distributed systems, and high-throughput transaction platforms. I enjoy working at the intersection of system architecture, platform scalability, and product impact, helping organizations build reliable financial systems that support large-scale growth.Beyond technical architecture, I am passionate about mentoring engineers, influencing technical direction, and building platforms that create meaningful business outcomes. I am particularly interested in collaborating with builders and innovators to develop the next generation of fintech platforms.Skills & TechnologiesProgramming:Java, Python, CBackend & Distributed Systems:Microservices Architecture, Event-Driven Systems, REST APIs, High-Throughput Transaction PlatformsFrameworks & Platforms:Spring Boot, Hibernate, Elasticsearch, AWSDatabases:MySQL, Oracle SQL, IBM DB2, Amazon RDS, SQLiteTools:GitHub, Docker, Tomcat, JIRA, Confluence

Experience

1. Staff Software Engineer

   BILL

   Jul 2022 — Present · Seattle, WA, US

   Using AI to make a simpler and faster way to receive and pay for SMBs.

Education

• The University of Texas at Arlington

  Master's degree, Computer Science

• National Institute of Technology Durgapur

  Bachelor of Technology (B.Tech.)

Skills

• C
• Mysql
• Spring Mvc
• Spring Boot
• Databases
• Spring Framework
• Android Sdk
• Android Development
• Algorithms
• Mobile Applications
• Core Java
• Microsoft Office
• C++
• Web Applications
• Html
• Java
• Sql
• Restful Webservices
• Android
• Software Development
• Data Structures