Backend engineer who enjoys fixing broken things and building new ones. I work on payments infrastructure, order flows, and lately AI tooling. NYC based.
Owned core payments and order flow as the company scaled from ~$60M to ~$240M ARR
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Migrated ~$200M in annual payment and order flow from Stripe Charges to Payment Intents, reducing fraud and refunds while improving transaction visibility
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Engineered prepaid annual phone plans to support yearly billing cycles, improving cash flow and retention
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Led backend integration for AT&T line provisioning with Ericsson, supporting our third major carrier launch
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Developed AI customer service agent (Python, Strands SDK) to automate data and roaming top-ups through LLM-based chat
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Resolved payment rate-limiting and mitigated DDoS and authentication attacks using Cloudflare and caching
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Led adoption of AI-assisted coding tools across engineering (Claude Code, Cursor) to improve developer productivity
Developed Java Spring Boot microservices to digitally onboard suppliers to the Amex network enabling B2B spend for 13,000+ suppliers
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Expanded supplier update event streaming capabilities by building serverless functions with Kotlin and Kafka to handle the ingestion of 350,000+ updates of Amex acceptance data
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Simplified MemSQL architecture by combining pipelines and procedures to automate the ingestion of hundreds of thousands of supplier data records
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Launched a .NET application that has scanned over 300,000 files for Indian credit card data, ensuring compliance with Indian data localization laws and allowing Amex to resume issuing cards in India
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Released a file upload web application for Amex’s risk management platform using .NET and JavaScript, optimizing file processing times by 85%
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Implemented authorization policies and constructed proxy endpoints to enable key external partners to securely access Amex's APIs
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Built a custom scanning library in C# to identify attachments in Microsoft Office files, saving $10,000+ annually in licensing fees
Developed and maintained Ormuco's IaaS web application using AngularJS, Python, HTML and CSS by resolving bugs and adding new features to improve user experience and product functionality
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Automated the installation process for backup software on Virtual Machines using AngularJS and Bash scripting, reducing installation time by 90%
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Created a VMware-to-raw image converter for Ormuco’s cloud portal, allowing clients to easily transfer their virtual machines to Ormuco’s cloud
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Developed RESTful API endpoints to manage product metadata on the platform using Python, Flask, MySQL and CockroachDB
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Designed a reusable pricing script used to automate the price setting of over 1000+ products across multiple production environments
Tutored 10+ McGill students with custom lesson plans to provide better understanding of coursework in algorithms and data structures, software design, computer architecture and integral calculus
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Facilitated efficient study strategies by advising students on review material and answering homework questions outside of tutor lessons
Education
2016 — 2020
McGill University
Bachelor of Arts - BA
2016 — 2020
2019 — 2019
Institute of Economic Studies, Faculty of Social Sciences, Charles University
