Zachary Mosley
I’m a full-stack developer with 8+ years of experience building scalable AI-driven platforms and high-performance backend systems, along with modern web and mobile applications.
About
I’m a full-stack developer with 8+ years of experience building scalable AI-driven platforms and high-performance backend systems, along with modern web and mobile applications. I’ve led end-to-end development for fintech, automation, and gig-economy products—building services that power AI automation, real-time analytics, and secure payment workflows.
I work across the stack using FastAPI, Node.js (TypeScript), React, and React Native, with PostgreSQL and AWS-based infrastructure. I enjoy integrating complex third-party APIs, optimizing data pipelines, and architecting reliable microservices, while keeping the engineering process clean, collaborative, and focused on solutions that scale with business growth.
- 3 years' experience
- Joined October 2026
Industry experience
- Software & Internet
- Financial Services
- Professional Services
Work experience
Architected and implemented core infrastructure across the TaxMate and GigFlow platforms, enabling scalable AI and automation workflows from backend services to user-facing apps. Designed a modular microservice architecture integrating OCR pipelines and RAG-based LLM agents for AI-driven tax document parsing using LangChain and OpenAI APIs. Engineered PostgreSQL data models and ETL pipelines to unify gig-platform data (e.g., Uber, Lyft, DoorDash, Fiverr) for consistent synchronization of financial and tax records. Built high-throughput APIs with FastAPI and Node.js (TypeScript) for ingestion and financial transaction handling. Contributed to React and React Native interfaces including real-time analytics dashboards, and deployed services on AWS (Lambda, S3, EC2) using Docker with CI/CD and automated testing via GitHub Actions.
Designed and optimized server-side systems powering a cross-platform fitness application, including workout tracking, progress monitoring, wearable integrations, and AI-driven fitness recommendations. Built and maintained scalable FastAPI backend services with REST and GraphQL endpoints for workout tracking, analytics, and real-time user data. Integrated Stripe subscription, billing, and webhook handling for premium features. Developed OpenAI-powered logic for personalized workout plans. Designed optimized PostgreSQL schemas and queries to support fast, reliable processing across mobile and wearable integrations.
Built and optimized server-side systems for booking, scheduling, and membership management. Developed and maintained Laravel/PHP backend services, designing scalable RESTful APIs for bookings, scheduling, user accounts, and membership workflows. Integrated payment gateways (Stripe, PayPal, Mollie) with secure transaction flows, webhook handling, and subscription logic. Built real-time notification modules using Firebase Cloud Messaging (FCM) and server-side event triggers. Designed optimized MySQL schemas to improve query performance and ensure reliability in high-traffic features, collaborating with mobile and product teams in Agile sprints.
Education
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