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Hi, I'm Aarushi Saini, a passionate Full Stack Engineer based in Bengaluru. I specialize in building resilient, scalable backend systems and enjoy working with modern DevOps tools and cloud platforms. With experience at Visa Inc. and Fidelity Investments, I've had the opportunity to work on transforming legacy systems, managing sensitive financial transactions on AWS, and optimizing data migration processes. I thrive in collaborative team settings, always eager to take ownership of my work and adapt to new challenges. I’m continuously improving my skills in backend and frontend technologies, and I enjoy crafting efficient and reliable software solutions that make a real impact.…Hi, I'm Aarushi Saini, a passionate Full Stack Engineer based in Bengaluru. I specialize in building resilient, scalable backend systems and enjoy working with modern DevOps tools and cloud platforms. With experience at Visa Inc. and Fidelity Investments, I've had the opportunity to work on transforming legacy systems, managing sensitive financial transactions on AWS, and optimizing data migration processes. I thrive in collaborative team settings, always eager to take ownership of my work and adapt to new challenges. I’m continuously improving my skills in backend and frontend technologies, and I enjoy crafting efficient and reliable software solutions that make a real impact.

Aarushi Saini

Full Stack Developer, Developer, Web Developer, +2

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Hi, I'm Aarushi Saini, a passionate Full Stack Engineer based in Bengaluru. I specialize in building resilient, scalable backend systems and enjoy working with modern DevOps tools and cloud platforms. With experience at Visa Inc. and Fidelity Investments, I've had the opportunity to work on transforming legacy systems, managing sensitive financial transactions on AWS, and optimizing data migration processes. I thrive in collaborative team settings, always eager to take ownership of my work and adapt to new challenges. I’m continuously improving my skills in backend and frontend technologies, and I enjoy crafting efficient and reliable software solutions that make a real impact.…Hi, I'm Aarushi Saini, a passionate Full Stack Engineer based in Bengaluru. I specialize in building resilient, scalable backend systems and enjoy working with modern DevOps tools and cloud platforms. With experience at Visa Inc. and Fidelity Investments, I've had the opportunity to work on transforming legacy systems, managing sensitive financial transactions on AWS, and optimizing data migration processes. I thrive in collaborative team settings, always eager to take ownership of my work and adapt to new challenges. I’m continuously improving my skills in backend and frontend technologies, and I enjoy crafting efficient and reliable software solutions that make a real impact.

Available to hire

Hi, I’m Aarushi Saini, a passionate Full Stack Engineer based in Bengaluru. I specialize in building resilient, scalable backend systems and enjoy working with modern DevOps tools and cloud platforms. With experience at Visa Inc. and Fidelity Investments, I’ve had the opportunity to work on transforming legacy systems, managing sensitive financial transactions on AWS, and optimizing data migration processes.

I thrive in collaborative team settings, always eager to take ownership of my work and adapt to new challenges. I’m continuously improving my skills in backend and frontend technologies, and I enjoy crafting efficient and reliable software solutions that make a real impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Software Engineer at Visa Inc.

April 1, 2025 - Present

Migrated legacy payment gateway systems to a new architecture to reduce settlement processing time by transforming transaction data from Kafka streams into gateway-specific file formats and delivering them to acquiring merchants. Collaborated with upstream services to ensure accurate ingestion of transaction events and built resilient, scalable components for settlement file generation and transmission.

Full Stack Engineer at Fidelity Investments

March 31, 2025 - July 21, 2025

Designed and built secure, serverless APIs on AWS to manage sensitive financial transactions supporting 20k TPS. Implemented migration of 140M+ records from DB2 mainframe to Oracle SQL using AWS Batch, JPA, Spring Batch, and Terraform. Developed a reconciliation application that reduced errors by nearly 20%. Led Technology Lifecycle Management initiatives for tier-0 applications, developed comprehensive unit test suites with over 90% coverage, and resolved production issues through log analysis and team collaboration to ensure minimal downtime.

Spring Intern at Fidelity Investments

June 30, 2022 - July 21, 2025

Developed a Python-based POC API to replace a vendor product enabling decoded barcode values from multipage files using open source libraries. Created a Java desktop application using JavaFX for managing records of newspapers, customers, hawkers, and bills. Applied MVC design pattern and used SQL for data storage.