Senior Software Engineer, Google Calendar GenAI

SAM BAE

Senior Software Engineer

(***) *** - ***5 ***.*****@*******.*** Princeton, NJ

PROFILE

Senior Software Engineer with 12 years of experience. Developed full-stack features and Gemini AI integrations for Google Calendar. Previously built scalable backend services and HIPAA-compliant integrations for HealthTap telehealth platform serving 20M+ users. PROFESSIONAL EXPERIENCE

Google

Senior Software Engineer Mar 2016 - Present

● Spearheaded full-stack development of core high-throughput and real-time features for Google Calendar, integrating GenAI and ensuring seamless performance across billions of devices, significantly enhancing user engagement and productivity (GenAI, full-stack technologies)

● Architected cross-device synchronization for mobile and web parity, delivering seamless real-time updates across billions of devices (Java, Spanner, Pub/Sub)

● Designed a custom recurrence engine for appointment slots, eliminating booking conflicts and significantly enhancing service reliability (Go, Spanner, RESTful APIs)

● Built integration layers connecting Meet and Chat, enabling instant communication and artifact sharing that boosted collaboration efficiency (Java, Pub/Sub, Bigtable)

● Created multi-calendar conflict detection system, dramatically accelerating scheduling decisions and improving user satisfaction (Node.js, Bigtable, gRPC, BigQuery)

● Integrated Gemini AI for automated note-taking and intelligent scheduling, streamlining workflows and saving users several hours per week (Gemini AI, Python, Spanner, BigQuery)

● Developed Time Insights analytics dashboard, delivering personalized time breakdowns that reduced meeting overload by 15% based on user feedback (React, TypeScript, D3.js)

● Established observability pipelines for real-time Calendar API monitoring, enabling proactive issue detection and cutting mean time to resolution by 50% (Prometheus, Cloud Monitoring, Cloud Logging)

● Engineered comprehensive testing frameworks for event synchronization features, achieving 99.9% uptime and decreasing bug-related user complaints by 40% (Java, JUnit, Selenium)

● Orchestrated cross-team collaboration with global Workspace groups on AI integrations, aligning Calendar and Gemini teams to achieve seamless adoption and shorten integration timelines by 30% (AI integrations, cross-team leadership)

HealthTap

Software Engineer June 2014 - Jan 2016

● Developed and maintained scalable backend services powering digital prescription and telehealth systems used by 20M+ users nationwide (PHP Laravel, Java Spring Boot, AWS ECS, Lambda)

● Integrated FHIR/HL7-compliant APIs to securely exchange data between pharmacy and provider systems, contributing to a 25% increase in data sharing efficiency and ensuring HIPAA compliance

(FHIR/HL7 APIs)

● Designed RESTful APIs and GraphQL endpoints consumed by CVS Health’s mobile and web apps, improving response times by 40% and enabling real-time medication tracking for users (RESTful APIs, GraphQL)

● Contributed to frontend features including secure patient login flows and appointment scheduling components, enhancing patient experience and usability (React, TypeScript)

● Implemented event-driven architectures to streamline communication across pharmacy, insurance and clinical services (Kafka, AWS SNS/SQS)

● Collaborated with DevOps teams to deploy and monitor services on AWS, improving release frequency and system reliability (AWS ECS, RDS, CloudWatch, Terraform)

● Engineered system infrastructure ensuring high availability and fault tolerance for global live events

(Kubernetes, Python)

SKILLS

● Languages: Java, Go, Python, TypeScript, JavaScript, PHP, Node.js

● Backend: Java Spring Boot, Laravel, RESTful APIs, GraphQL, gRPC

● Frontend: React, TypeScript, D3.js, Chart.js

● Databases: Google Spanner, Bigtable, BigQuery, AWS RDS

● Cloud & DevOps: AWS (ECS, Lambda, SNS/SQS, CloudWatch, Terraform), Google Cloud, Kubernetes

● Messaging: Pub/Sub, Kafka, SNS/SQS

● AI & Generative AI: Gemini AI, GenAI

● Testing & Monitoring: Prometheus, Cloud Monitoring, Cloud Logging, JUnit, Selenium

● Domain & Compliance: HIPAA, FHIR/HL7

EDUCATION

Binghamton University 2008 - 2014

Bachelor’s Degree in Computer Science

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