Kosh Thirumalai

Kosh Thirumalai

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Executive Vice President of Engineering
Seattle, Washington, United States

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Jobs verified_user 0% verified
  • Seesaw Learning
    Executive Vice President of Engineering
    Seesaw Learning
    Mar 2026 - Current (6 months)
    Lead Seesaw’s engineering organization across product engineering, platform and infrastructure, data, security, IT, and GTM engineering. Own engineering strategy, organizational design, technical direction, operational performance, and execution across a global education platform. • Established an integrated engineering strategy spanning customer-facing products, international expansion, platform modernization, data, security, and enterprise capabilities. • Sustained 99.999% platform availability during peak back-to-school traffic while improving P99 latency by more than 60%. • Expanded Seesaw’s global architecture and data-residency capabilities across the US, UK, EU, MENA, and APAC • Improved engineering velocity by approximately 60% thro
  • Seesaw Learning
    Director of Engineering
    Seesaw Learning
    Mar 2024 - Mar 2026 (2 years 1 month)
    Led engineering across product-led growth, internationalization, platform infrastructure, data foundations, security, and IT. Built the systems and organizational capabilities required for Seesaw to grow without sacrificing reliability, customer trust, or engineering velocity. • Led product and engineering investments across acquisition, activation, engagement, monetization, and international growth. • Modernized core infrastructure and operating practices, producing significant improvements in availability, latency, deployment speed, and cloud efficiency. • Built and scaled data foundations supporting product analytics, business intelligence, experimentation, and executive decision-making. • Delivered regional infrastructure, data isolatio
  • Seesaw Learning
    Senior Engineering Manager
    Seesaw Learning
    Mar 2023 - Mar 2024 (1 year 1 month)
    As Head of Platforms at Seesaw, I lead our Product Platforms, Infrastructure, Data, and Security Engineering teams. I’ve scaled the organization through 3× growth, transitioned the team from generalists to domain experts, and built resilient systems that power Seesaw’s global edtech footprint. Key accomplishments include: 💰 Cost & Scale Efficiency: Drove a >45% reduction in cloud infrastructure costs (multi-million dollar annual savings) by evolving fragmented point-in-time solutions into a cohesive, scalable platform. This unlocked long-term sustainability while immediately improving AWS run-rate. 🚀 Performance & Reliability: Boosted backend API performance by over 60% (including P99 latencies), and improved client app load times by 3
  • Seesaw Learning
    Engineering Manager
    Seesaw Learning
    Sep 2021 - Mar 2023 (1 year 7 months)
    Product Platform Engineering - Core Services and Infrastructure, Security - Own all the core infrastructure, and the services that support our millions of users daily - Enable the product verticals at Seesaw with foundational building blocks on the cloud, while optimizing from a cost and developer efficiency perspective. - Responsible for the security, privacy, and trust & safety components of our products. - Drive data infrastructure and integrity strategy and vision, which supports the needs of our products and business
  • Microsoft
    Senior Tech Lead
    Microsoft
    Apr 2019 - Sep 2021 (2 years 6 months)
    𝐀𝐳𝐮𝐫𝐞 𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐄𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦𝐬 - Maintained 99.995% reliability and decreased livesite incidents by over 40%, by owning and delivering features to the authentication and account backbone services for all enterprise commercial transactions - Played a key role in moving the Azure enterprise commercial business ($90B+) to the modern commerce services stack, with zero downtime and increased service efficiency - Improved service latency by 30% while leading a key effort to migrate Azure commercial business from legacy to modern commerce systems with zero downtime - Reduced buildout time by 60%, while serving as technical lead for special projects to build out Azure based secure services, for 'airgapped' and other national sec
  • CareZonecom
    Engineering Manager
    CareZonecom
    Nov 2017 - Mar 2019 (1 year 5 months)
    - Managed a diverse and distributed team of eight engineers, owning billing, sales, app facing API service, and ETL - Designed and implemented the central real-time data aggregator, to be consumed by third party pharmacies, while conforming to HIPAA and other healthcare regulations - Built the internal event infrastructure service, to track user actions and life-cycle more efficiently
  • CareZonecom
    Senior Software Development Engineer
    CareZonecom
    Aug 2016 - Nov 2017 (1 year 4 months)
    - Built a reliable ledger and billing system, that tracked revenue from under 500k USD to over 40M USD annually - Built an integrated Salesforce pipeline for the sales team, that improved our daily patient intake by 40% - Implemented a message based OCR integration service that sped up our card scanning round trip throughput by 10x - Moved our services to Google Cloud and Kubernetes, which made our deployment pipelines 3x faster
  • Grameen Foundation
    Senior Software Development Engineer
    Grameen Foundation
    Feb 2014 - Dec 2016 (2 years 11 months)
    - Designed, built, and deployed the world's largest open source mobile health solution on the MOTECH platform [2016] - Managed project implementation teams in India, and remote vendor teams in Poland - Migrated CI and test infrastructure to AWS for reliable platform builds
  • Microsoft Corporation
    Software Development Engineer
    Microsoft Corporation
    Oct 2010 - Feb 2014 (3 years 5 months)
    - Built service platform on Azure for Windows Phone Services, consisting of a log collection service agent, and automated service deployment pipeline, to improve service uptime and reliability [config,resources] - Implemented integration pipeline tools for mobile operators to provision new phones - Designed and implemented a diagnostic service on Windows Azure to track and manage logs on Windows Phone clients. - Engineered the service platform telemetry pipeline to reliably offload service health data from Windows Azure to map-reduce clusters. -• Prototyped and helped design a REST based backup-restore service to enable restore experience on sign-in. - Owned and implemented several libraries built on top of the Windows Azure platform to ena
  • Microsoft Corporation
    Software Design Engineer in Test
    Microsoft Corporation
    Sep 2009 - Oct 2010 (1 year 2 months)
    - Owned and implemented end-to-end infrastructure and API testing for Find My Phone service. - Developed tools for deployment validation and account provisioning for new device signups. - Worked on testing the email auto-configuration service.
  • Microsoft
    SDET Intern
    Microsoft
    Jun 2008 - Sep 2008 (4 months)
    - Developed test framework for Email contacts importer and management. - Engineered the infrastructure for daily test runs and auto-configuration of email settings.
  • University of Washington School of Computer Science and Engineering
    Web Computing Specialist/Research Assistant/Programmer
    University of Washington School of Computer Science and Engineering
    Feb 2008 - Jun 2008 (5 months)
    - Student programmer for User study on use of images and transliteration. - Analyzed data; Reviewed literature, reports and presentations.
  • S
    Webmaster
    South Asian Student Association
    Sep 2007 - Jun 2008 (10 months)
  • University of Washington School of Computer Science and Engineering
    Student Programmer
    University of Washington School of Computer Science and Engineering
    Aug 2007 - Mar 2008 (8 months)
  • University of Washington
    Support Staff
    University of Washington
    Apr 2006 - Dec 2006 (9 months)
  • U
    Email Analyst
    University of Washington Computing Communications
    Mar 2006 - Dec 2007 (1 year 10 months)
    - Email routing analyst for all UW tech support - Level 1 support
Education verified_user 0% verified
  • University of Washington
    Bachelor of Engineering (B.E, Computer Engineering
    University of Washington
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