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Vincent Fearing
Junior Full-Stack Engineer specializing in FinTech systems
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About
Full-stack engineer with deep experience in high-stakes integrations: owned end-to-end fintech payment notification/installment tracking at an early-stage startup (FastAPI/React/AWS), including multi-environment routing for live banking partners and reliability patterns like idempotency and retries. Also built a Coachella partner ticketing platform (React/TS/Node/Postgres) with strong concurrency controls and zero-downtime migrations, and previously delivered media-asset ETL/file-sharing automation at Sony Pictures using Frame.io with checksum-verified transfers.
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Key Strengths
- End-to-end ownership of production features (frontend, backend, deployment/ops)
- Fintech/payment systems expertise (installments, confirmations, notifications, reconciliation)
- AWS production operations with multi-environment management (dev/sandbox/prod) for live banking integrations
- Reliability engineering for external APIs (idempotency, retries, defensive coding, detailed logging)
- Maintainable integration architecture via adapter pattern; reduced partner onboarding from many code changes to a single module
- Zero-downtime migration strategy (expand/contract with staging validation and low-traffic cutovers)
- Strong data integrity approach using Postgres constraints + transactions to prevent race-condition over-allocation
- Measurable production optimization: reduced USIO confirmation log noise from 800+ entries to targeted batches, improving incident response time
- Built robust media asset ETL pipelines with checksum validation and idempotent syncing across post-production teams
Reference Highlights
- Very experienced programmer
- Ships code consistently
- Fixes issues immediately
- Strong backend execution (web scraper automation)
- Strong frontend contributor in TS/React codebases
- Improved codebase by modernizing Redux store
- Eliminated race conditions impacting development
- Analytical thinker
- Grasps the big picture first then fills in details
- Fast progress/quick learner
- Reliable deployments and CI/CD
- Security-minded (secures after functionality and optimization)
- Scalability-minded (cloud and CI/CD built the right way)
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