# Kirill Chernik

> Senior Software Engineer

Location: United States, United States
Profile: https://flows.cv/kirillchernik

## Work Experience
### Sr. Software Engineer @ Tomorrow Health
Jan 2024 – Present
• Architected an AI-powered document classification system with Python/Django backend; optimized AI prompts using few-shot learning to improve classification accuracy and efficiency, and built a React-based UI, reducing the number of orders needing manual review by 35%.
• Developed an AWS serverless ecosystem (Lambda, ECS) with Terraform IaC for order processing,
implementing M2M authentication for communication with the internal API, and a comprehensive CloudWatch monitoring to achieve 99.9% uptime across 2,000+ monthly orders.
• Introduced an enhanced match detection algorithm by utilizing phonetic and fuzzy matching across
multiple fields that reduced duplicate patient records by over 20% and minimized related order delays.

### Sr. Software Engineer @ Bundlefi
Jan 2023 – Jan 2024
• Modernized legacy PHP monolith by building Next.js customer portal, reusable Vue.js component library, and secure GraphQL API, reducing technical debt and enabling 3x faster feature development.
• Optimized application performance utilizing static rendering and database query tuning, reducing page load times from 4s to 1.8s, doubling API throughput, and cutting AWS costs by 15% through rightsizing.
• Redesigned website analytics collection and search visibility by implementing Google Tag Manager and Mixpanel for event tracking and adding structured data markup for products, resulting in 3x improvement in organic traffic conversion rates

### Sr. Software Engineer @ Ellis
Jan 2021 – Jan 2023 | New York City Metropolitan Area
• Built PCI-compliant mobile banking app using Capacitor/Vue.js serving 2000+ international customers, implementing biometric authentication and achieving WCAG 2.1 AA accessibility compliance.
• Architected PostgreSQL database with read replicas and GraphQL API supporting 1,500+ concurrent
users, implementing automated Terraform deployments and achieving 99.95% uptime.

### Software Engineer II @ Landis
Jan 2020 – Jan 2021 | New York City Metropolitan Area
Implemented blue-green deployment strategy, and a structured pattern for database migrations,
reducing feature release cycle while maintaining zero-downtime deployments.

### Software Engineer @ Landis
Jan 2019 – Jan 2020 | New York City Metropolitan Area
Developed microservices-based platform with React-based CRM and 3 specialized services (credit
parsing, financial coaching, Stripe payment processing), implementing RBAC authorization and service
timeouts with graceful fallbacks to prevent downstream failures.


## Education
### Computer Software Engineering
Hack Reactor
Jan 2018 – Jan 2019

### Bachelor of Science in International Business, Computer Science
Peter the Great St.Petersburg Polytechnic University
Jan 2013 – Jan 2017

### Economics in Korean Studies
Kyungpook National University
Jan 2015 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/kirill-chernik

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Source: https://flows.cv/kirillchernik
JSON Resume: https://flows.cv/kirillchernik/resume.json
Last updated: 2026-03-22