Jose Cortes
Houston,Texas
Summary
Accomplished Senior Full Stack Engineer with over 13 years of experience, specializing in React, Next.js, Node.js, Express.js, GraphQL, PostgreSQL, MongoDB, and Docker, delivering scalable web applications across fintech, SaaS, retail, and industrial analytics industries.
Overview
12
12
years of professional experience
Work History
Senior Software Engineer
Plaid
08.2023 - Current
- Crafted intuitive client-facing dashboards and subscription management interfaces with React, Next.js, and MUI, enhancing platform usability and user retention across core SaaS functionalities.
- Engineered secure financial data aggregation APIs and account linking workflows for banks and credit unions using Node.js, TypeScript, and GraphQL, ensuring compliant and reliable data handling at scale.
- Implemented open banking API integrations and identity verification pipelines with Node.js and Express, streamlining real-time financial data synchronization across multiple institutional client environments.
- Architected scalable multi-tenant SaaS platform features, automating financial data pipelines and real-time account aggregation services while maintaining strict security and compliance standards using GraphQL and TypeScript.
- Designed and maintained core fintech infrastructure with Node.js, TypeScript, and PostgreSQL, handling secure payment initiation, financial data enrichment, and user authentication workflows with measurable improvements in system reliability.
Senior Full Stack Engineer
ScienceSoft
08.2020 - 07.2023
- Spearheaded end-to-end retail e-commerce platform development, engineering a fully responsive shopping cart, coupon handling, payment integration, and order confirmation flow using React, Next.js, and MUI.
- Developed full-stack real estate web applications, architecting responsive property listing and client portal interfaces with React and Next.js, backed by scalable Node.js and Laravel APIs with PostgreSQL and MongoDB for structured data management.
- Optimized API performance for a large-scale SaaS platform by architecting a GraphQL gateway with Apollo Server, schema stitching, and DataLoader, while leading a zero-downtime migration of legacy PHP 5.6 microservices to PHP 8.1 using feature flags and automated refactoring tools.
- Built robust fintech backend systems with Node.js, Express, and GraphQL, managing financial transaction data, payment processing pipelines, and reporting workflows backed by MySQL and PostgreSQL.
- Designed and implemented secure RESTful and GraphQL services with Node.js, TypeScript, and Express to handle user authentication, financial transactions, and real-time payment processing, backed by PostgreSQL for reliable and scalable data management.
Senior Full Stack Developer
Stripe
05.2018 - 06.2020
- Led frontend development of Stripe's merchant-facing billing dashboard using React, Redux-Saga for complex async flows, and TypeScript. Created real-time subscription analytics visualizations with D3.js and Victory Charts, displaying MRR, churn rates, and LTV metrics. Implemented complex billing workflows including subscription upgrades/downgrades, proration calculations, and trial period management.
- Built high-throughput payment processing microservices using Node.js, Express.js, and PostgreSQL capable of handling 10K+ transactions per second. Implemented idempotency keys for payment retry logic, distributed locking with Redis for race condition prevention, and circuit breakers for payment gateway failover. Created webhook delivery system with exponential backoff, event deduplication, and signature verification (HMAC-SHA256).
- Designed and implemented OAuth 2.0 flow for Stripe Connect onboarding, supporting Standard, Express, and Custom account types. Built account verification pipeline processing KYC/AML checks, document uploads via Stripe Identity API, and compliance workflows.
- Developed multi-party payment splitting engine with complex fee calculations, platform fees, and application fees. Created reconciliation system for handling disputes, refunds, and chargebacks across connected accounts.
React Front-End Developer
Robinhood
11.2016 - 04.2018
- Developed mission-critical trading flows including order placement, portfolio management, and real-time position tracking using React, Redux, and WebSocket connections for live market data. Built fractional share trading engine with complex order routing algorithms, supporting market, limit, stop-loss, and trailing stop orders.
- Implemented real-time price execution system with sub-millisecond latency using Node.js event loops and Redis Pub/Sub for order book updates.
- Built real-time dashboard displaying account verification queues, KYC/AML compliance checks, and dispute resolution workflows.
Software Engineer
Uptake Technologies
04.2014 - 10.2016
- Applied object-oriented design principles using Java, Spring Boot, and Python to develop backend modules for industrial analytics platforms, improving system usability and performance.
- Implemented Node.js and Python services with PostgreSQL using common design patterns to support scalable data processing and analytics features.
- Troubleshot and fixed production issues by debugging services and APIs using Docker environments, REST APIs, and Elasticsearch logging, improving reliability of industrial analytics applications.
Education
Bachelor of Science -
New York University
New York05-2012
Skills
- React
- Redux
- JavaScript
- TypeScript
- Expressjs
- Spring Boot
- REST API
- Java
- MySQL
- Redis
- Nextjs
- Nodejs
- Laravel
- GraphQL
- Python
- PostgreSQL
- MongoDB
- Docker
Timeline
Senior Software Engineer
Plaid
08.2023 - Current
Senior Full Stack Engineer
ScienceSoft
08.2020 - 07.2023
Senior Full Stack Developer
Stripe
05.2018 - 06.2020
React Front-End Developer
Robinhood
11.2016 - 04.2018
Software Engineer
Uptake Technologies
04.2014 - 10.2016
Bachelor of Science -
New York University