Sahil Aggarwal

Engineering Leader | Principal Member of Technical Staff | ex-AWS | 10+ years building scalable cloud platforms • Driving operational excellence & technical strategy.

Seattle, Washington, United States

About

With over a decade of experience in designing and scaling high‑performance distributed systems, I have built mission‑critical platforms that power global services. At Amazon I currently lead the architecture and development of tier‑1 contact‑center infrastructure for Amazon Connect, re‑engineering its core systems to deliver four‑9s availability and a 50 % reduction in client‑side latency. Previously at Visa, I developed a scalable alerting system on OpenTSDB and integrated a GraphQL backend to accelerate data retrieval and enhance system responsiveness. At Paytm I optimized real‑time inventory management to handle 50 k transactions per second and built a queue‑based catalog platform supporting millions of daily product updates. I thrive on mentoring engineers and influencing technical roadmaps, balancing pragmatic solutions with long‑term vision. I’m passionate about cloud-native architectures, operational excellence and fostering a growth mindset within teams.

Experience

  • Principal Member of Technical Staff at Oracle
    Jan 2026 - Present · 6 mos

  • Senior Software Engineer at Amazon
    Jul 2019 - Jan 2026 · 6 yrs 7 mos

    * Designed, developed, tested, deployed, and maintained the Accelerated Subscription feature to enhance beta apptesting for the AmazonAppStore. * Lead the integration of the AppStore system with the Datapath Responder platform as part of the PAS Deprecation Campaign, improving ASIN query handling. * Provided on-call support, contributing to operational goals and system reliabilityfortheApp Storeteam. * Optimized performance metricsfor the existingApp Store submission platform, focusing on reducing latency and increasing system availability. * Collaborated in design reviews, aiding team members in developing scalable, maintainable, and robust systems.

  • Senior Software Engineer at Visa
    Mar 2018 - Jun 2019 · 1 yr 4 mos

    * Developed and directed software system testing and validation procedures. • Scalable Alerting System using Time Series DataStore OpenTSDB Contributed in creating React Web App with GraphQL Backend Unit Tested CodeBase with proper Coding Standards

  • Software Engineer at Paytm
    Apr 2015 - Apr 2017 · 2 yrs 1 mo

  • Student at Mnit Jaipur
    Apr 2010 - May 2014 · 4 yrs 2 mos

    Learning programming and improving my skills as i have a keen interest in programming.