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I’m a full-stack developer with 8+ years of experience building scalable, AI-driven platforms and high-performance backend systems for products in fintech, automation, and the gig economy. I’ve led end-to-end engineering—designing microservice architectures, implementing OCR/LLM-based workflows, and building reliable APIs and data pipelines that power real-time analytics and secure payment workflows. I’m comfortable across the stack with FastAPI, Node.js (TypeScript), React/React Native, and PostgreSQL, and I regularly work with AWS services plus CI/CD and containerized deployments. I enjoy integrating complex third-party APIs, optimizing ETL and ingestion for throughput, and collaborating closely with product and mobile teams to deliver clean, maintainable solutions that scale with business growth.…I’m a full-stack developer with 8+ years of experience building scalable, AI-driven platforms and high-performance backend systems for products in fintech, automation, and the gig economy. I’ve led end-to-end engineering—designing microservice architectures, implementing OCR/LLM-based workflows, and building reliable APIs and data pipelines that power real-time analytics and secure payment workflows. I’m comfortable across the stack with FastAPI, Node.js (TypeScript), React/React Native, and PostgreSQL, and I regularly work with AWS services plus CI/CD and containerized deployments. I enjoy integrating complex third-party APIs, optimizing ETL and ingestion for throughput, and collaborating closely with product and mobile teams to deliver clean, maintainable solutions that scale with business growth.

Zachary Mosley

Full Stack Developer, Back-End Developer, Web Developer, +2

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I’m a full-stack developer with 8+ years of experience building scalable, AI-driven platforms and high-performance backend systems for products in fintech, automation, and the gig economy. I’ve led end-to-end engineering—designing microservice architectures, implementing OCR/LLM-based workflows, and building reliable APIs and data pipelines that power real-time analytics and secure payment workflows. I’m comfortable across the stack with FastAPI, Node.js (TypeScript), React/React Native, and PostgreSQL, and I regularly work with AWS services plus CI/CD and containerized deployments. I enjoy integrating complex third-party APIs, optimizing ETL and ingestion for throughput, and collaborating closely with product and mobile teams to deliver clean, maintainable solutions that scale with business growth.…I’m a full-stack developer with 8+ years of experience building scalable, AI-driven platforms and high-performance backend systems for products in fintech, automation, and the gig economy. I’ve led end-to-end engineering—designing microservice architectures, implementing OCR/LLM-based workflows, and building reliable APIs and data pipelines that power real-time analytics and secure payment workflows. I’m comfortable across the stack with FastAPI, Node.js (TypeScript), React/React Native, and PostgreSQL, and I regularly work with AWS services plus CI/CD and containerized deployments. I enjoy integrating complex third-party APIs, optimizing ETL and ingestion for throughput, and collaborating closely with product and mobile teams to deliver clean, maintainable solutions that scale with business growth.

Available to hire

I’m a full-stack developer with 8+ years of experience building scalable, AI-driven platforms and high-performance backend systems for products in fintech, automation, and the gig economy. I’ve led end-to-end engineering—designing microservice architectures, implementing OCR/LLM-based workflows, and building reliable APIs and data pipelines that power real-time analytics and secure payment workflows.

I’m comfortable across the stack with FastAPI, Node.js (TypeScript), React/React Native, and PostgreSQL, and I regularly work with AWS services plus CI/CD and containerized deployments. I enjoy integrating complex third-party APIs, optimizing ETL and ingestion for throughput, and collaborating closely with product and mobile teams to deliver clean, maintainable solutions that scale with business growth.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Full-Stack Engineer at Orcava Inc

January 1, 2024 - December 1, 2025

Architected and implemented core infrastructure across the TaxMate and GigFlow platforms to enable scalable AI and automation workflows from backend services to user-facing apps. Designed modular microservices integrating OCR pipelines and RAG-based LLM agents for AI-driven tax document parsing using LangChain and OpenAI APIs. Built database schema and ETL pipelines to unify data from gig-platform APIs (e.g., Uber, Lyft, DoorDash, Fiverr) and ensure consistent synchronization of financial and tax records. Developed high-throughput backend APIs using FastAPI and Node.js (TypeScript) for data ingestion and secure financial transaction handling. Contributed to React and React Native interfaces, delivering multi-platform experiences and real-time analytics dashboards. Deployed and monitored distributed services on AWS (Lambda, S3, EC2) using Docker and GitHub Actions, with automated testing and scalable CI/CD.

Backend Developer at Fit-Alliance

July 1, 2023 - August 1, 2024

Designed and optimized server-side systems for a cross-platform fitness application, including workout tracking, progress monitoring, wearable integrations, and AI-driven fitness recommendations. Built scalable FastAPI backend services with REST and GraphQL endpoints for analytics and real-time user data. Integrated Stripe subscription and billing flows, including webhook handling for premium features. Implemented OpenAI-based backend logic to generate personalized workout plans. Optimized PostgreSQL schemas and queries to support fast, reliable data processing across mobile and wearable integrations.

Full-Stack Developer at Appybee

October 1, 2019 - February 1, 2021

Built and optimized server-side systems for a booking, scheduling, and membership management application. Developed and maintained Laravel/PHP backend services, designing scalable REST APIs for bookings, scheduling, user accounts, and membership workflows. Integrated third-party payment gateways (Stripe, PayPal, Mollie) including secure transaction flows, webhook handling, and subscription logic. Implemented real-time notifications using Firebase Cloud Messaging (FCM) and server-side event triggers. Designed optimized MySQL schemas to improve query performance and ensure data reliability for high-traffic features. Collaborated with mobile and product teams in Agile sprints to support API design, testing, deployment, and release management for iOS and Android.