Experience | Fynn Buesnel

Develop a custom rule-based system for automatically promoting eligible websites to verified status in Haven.

Lead a weekly discussion section for 20 students, reviewing key concepts in Go and distributed systems from lecture.
Hold office hours and answer Piazza questions for a course enrolling approximately 90 students.

Owned end-to-end projects for Haven, a browser-security product, across Kotlin/Ktor, React/TypeScript, a Chrome extension, Google Cloud, and internal MCP tooling.
Moved CRM synchronization to Cloud Tasks with an OIDC-authenticated, idempotent handler and retries, removing a blocking third-party API call from a user-facing write path.
Built a production lifecycle email platform with a consent schema, self-scheduling sequence engine, Cloud Scheduler dispatch, and RFC 8058 unsubscribe and suppression handling.
Audited B2B console scalability, identifying an unbounded endpoint returning all members’ extension inventories, and built a shared pagination component for console tables.
Built internal MCP tools enabling an LLM-driven admin agent to access tenant domain and directory connection data, with read/write boundaries and audit logging.

Built backend services in Scala with Akka HTTP and mobile features in React Native and TypeScript for a 2.5M+ user production app.
Architected automated user engagement workflows for 50,000+ users using Scala, supporting platform retention goals.
Shipped a creator video upload flow for 500+ users and redesigned a content display component through two rounds of designer and user feedback.
Led the Expo SDK 53 to 54 upgrade end to end: New Architecture compatibility, an OAuth flow rewrite, a StoreKit 2 payments migration, and full QA.
Migrated in-app purchase validation from Apple StoreKit V1 to V2, updating receipt verification endpoints critical to revenue infrastructure.
Transitioned weather data from OpenWeatherMap to Apple WeatherKit, improving accuracy for iOS users and reducing third-party API costs.

Provided mentorship and grading support for a graduate-level server application development course with 15 students.
Created and refined grading rubrics to ensure fairness and consistency across assignments.
Advised students on technologies for their final projects based on my experience in software engineering roles.

Published multiple text campaigns to 500+ patients, increasing cancer screening rates.
Tracked attendance data to measure the impact of initiatives like text campaigns and follow-up calls.

Grade: GPA 3.93/4.00, Dean's List (All Semesters)
Degrees: Bachelor of Arts in Computer Science, Bachelor of Arts in Economics
Activities and Societies: KTP (Kappa Theta Pi Lambda Chapter), ΣΧ (Sigma Chi Iota Upsilon Chapter), Fashion Club, Student Food Rescue, Boston Hacks, Intramural Volleyball
Classes: CS131 Combinatoric Structures, CS132 Geometric Algorithms, CS210 Computer Systems, CS237 Probability in Computing, CS320 Concepts of Programming Languages, CS330 Analysis of Algorithms, CS351 Distributed Systems, CS365 Foundations of Data Science, CS392 .NET and C# Programming, CS411 Software Engineering, CS460 Introduction to Database Systems, EC101 Microeconomics, EC102 Macroeconomics
Certifications: CS50x Introduction to Programming, Harvard (2023)

Grades/Scores: 4.0/4.70 UW/W GPA, 35 ACT
Degree: International Baccalaureate Diploma, High School Diploma
IB Coursework: HL Math Analysis, HL English, HL Computer Science, SL History, SL Latin, SL Chemistry, TOK
Awards: Valedictorian, Faculty Designated Awards (Math, History, Modern & Classical Languages, English), 4-Year Prizes (Math, English), AP Scholar, Sacred Heart Academic Scholarship
Activities and Societies: Varsity Volleyball, Co-Founder Garden Club, Founder Social Justice Literary Club, Software Engineer for IB-Keyword-Search, Poetry Festival Panelist, Study Abroad Programs (Berlin, Copenhagen, and Rome)
Volunteering: Peer Tutor (2017 - 2023), St. Anthony Foundation School Board Member (2021 - 2023)