Yigal Bejerano

Principal Software Engineer and System Architect with 20+ years of experience spanning healthcare technology, distributed systems, and advanced algorithms. PhD and former Bell Labs scientist with 60+ patents, combining Bell Labs innovation with hands-on startup execution and full-stack engineering. Proven 0→1 technical leader, architecting and delivering healthcare and operational platforms at scale, serving hundreds of organizations and tens of thousands of users.

Applying LLMs and AI coding agents to production automation, troubleshooting, and software engineering workflows.

System Architect | Project Leader | Senior Software Engineer at VITAL CHECK (2017-01 – Present)

Healthcare Technology Startup.

Core Technologies: Java, Spring Boot, REST APIs, MongoDB, SQL, AWS, React, JavaScript, OpenAI API

• Technical Leadership & Mentorship: Technical owner and go-to engineer across critical platforms, driving architectural decisions and hands-on implementation while mentoring & onboarding engineers.
• Constraint-Aware Scheduling & Booking Platform: Created a scalable booking platform and REST APIs supporting complex multi-provider, multi-location scheduling constraints across 800+ organizations and tens of thousands of patients.
• Elastic Scheduling Engine: Introduced a dynamic scheduling mechanism that adapts time-slot availability to reduce schedule fragmentation, increasing patient bookings by 50%.
• Patient Identity Resolution: Designed and implemented a secure, password-free identity-resolution system that accurately recognizes returning patients despite changing or shared names, emails, and phone numbers, while preventing false matches and medical-data exposure.
• Clinic Bulk Operations: Designed and implemented infrastructure for efficiently managing complex updates across large numbers of clinics, reducing critical administrative workflows from multiple hours to just a few minutes and significantly improving operational efficiency.
• High-Availability Messaging Infrastructure: Engineered resilient email/SMS delivery with real-time failure detection, delivery tracking, and automated recovery using AWS SES and Twilio.
• AI-Assisted Production Troubleshooting: Built an LLM-based system integrating application logs and GitHub source code to identify root causes, assess impact, and recommend remediation.
• Authorization & Access-Control Architecture: Designed and implemented a centralized authorization framework across Vital Check's services, governing data visibility and operations based on roles, credentials, and resource relationships, e.g., limiting providers to their patients' medical data.
• Mobile App Leadership: Led architecture and development of Vital Check's mobile app while contributing hands-on to core features; achieved 4.8/5 on the App Store and 4.5/5 on Google Play.
• Provider Compensation & Reconciliation Platform: Architected and developed a configurable rules engine that calculates provider compensation based on patient encounters, clinical deliverables, and contract-specific agreements, automating payment workflows while ensuring transparency, auditability, and operational accuracy.
• Operations Platforms: Designed and built critical platforms for provider onboarding, clinic assignment and activity monitoring.

Member of Technical Staff | Research Scientist - Distributed Systems, Networking & Algorithms at NOKIA BELL LABS (Alcatel-Lucent) (2000-01 – 2017-01)

36 U.S. Patents | 25 International Patents (EP, JP, KR, CN) | 65 Peer-Reviewed Publications

• DyMo (Dynamic Monitoring of Large Wireless Systems): Initiated, assembled and led a cross-organizational team of ~10 scientists and engineers from Nokia and Columbia Univ. that developed a low-overhead multicast monitoring framework for large LTE-eMBMS networks, achieving scalable monitoring with only 5 feedback msg/sec across thousands of users (IEEE INFOCOM 2017 Runner-up for the Best Paper Award, European Broadcasting Union meeting 2017).
• AMuSe (Adaptive Multicast Services for WiFi Networks): Initiated a Bell Labs–Columbia University research collaboration and architected a WiFi video distribution system for crowded venues, validating live video delivery across 200 WiFi nodes on the Rutgers ORBIT testbed (NYC Media Lab Summit 2nd Prize; IEEE ICCCN 2016 Invited Paper).
• OASIS (Overlay-Assisted Services for Infrastructure Systems): Initiated and led a joint Bell Labs–Nokia Wireless project, bringing together experts across organizations to develop multi-interface LTE/WiFi management schemes that reduced network overhead and improved service quality (Alcatel-Lucent Boot Camp Finalist 2010 – 6 of 130 proposals selected).
• Redundant Multicast Trees (Fault-Resilient Routing): Designed dynamic protection schemes for unicast and multicast connections, automatically mitigating link and node failures while minimizing recovery bandwidth (IEEE HPSR 2013 Best Paper Award).
• PANDA (Power-Aware Network Design and Auto-Configuration): Formulated energy-efficient IP network topology algorithms that dynamically configure active network components based on traffic demand (IEEE HPSR 2012 Outstanding Paper Award).
• NetInventory: Created network topology-discovery algorithms for heterogeneous Ethernet networks using sparse connectivity data (Bell Labs President's Gold Award).
• CEDAT (Concept Evaluation, Demonstration and Analysis Tool): Built a cloud-based web application using Python, Java EE, AWS EC2, MySQL, and Google Visualization API for large-scale network evaluation, telemetry processing, dynamic reporting, and interactive visualization.

Doctor of Philosophy (PhD) in Electrical Engineering – Technion, Israel Institute of Technology

Master of Science (MSc) in Computer Science – Technion, Israel Institute of Technology

Bachelor of Science (BS) in Computer Science – Technion, Israel Institute of Technology