Payton Lowe
Senior Software Engineer
Riverdale,CA
Summary
Senior Software Engineer with 10+ years of experience across fintech, real estate, healthtech, and ecommerce. Specializes in microservices architecture, cloud-native AWS and Azure infrastructure, and full-stack delivery using Node.js, NestJS, React, and Next.js. Delivered a 90x user growth increase for Wagmo, enabled a private equity client to achieve full technical independence by migrating a legacy monolith to AWS, and eliminated enterprise data synchronization bottlenecks across SAP and Salesforce integrations. Consistently ships PCI-DSS-compliant payment systems, AI-powered RAG pipelines, and observable production platforms with measurable business impact.
Overview
10
10
years of professional experience
4
4
years of post-secondary education
Work History
Senior Software Engineer
Codingscape
09.2024 - Current
- Designed a Next.js and Node.js microservices platform consolidating real estate listings, virtual tours, and transaction processing into a single scalable system backed by PostgreSQL and MongoDB.
- Implemented PCI-DSS-compliant payment infrastructure using Nest.js, GraphQL, and Redis, removing fragmented collection workflows for high-volume real estate transactions.
- Built Nest.js REST APIs and AWS Lambda integrations connecting educational platforms with SAP and
Salesforce, eliminating manual student data synchronization across institutional systems. - Migrated a legacy monolith to cloud-native Node.js microservices on AWS using Docker, Kubernetes, and CI/CD pipelines, enabling a client to achieve full technical independence from parent company
infrastructure. - Integrated LangChain and LlamaIndex with OpenAI/Anthropic SDKs into client platforms, automating document processing workflows that previously required significant manual effort across teams.
- Delivered React, Next.js, and Redux.js frontend architecture across multiple engagements, resolving inconsistent UI state and build inefficiencies via Webpack optimization.
Senior Software Engineer
Vention
10.2020 - 09.2024
- Architected NestJS microservices and Node.js event-driven APIs for StoneX's trading platform, fully decoupling market data ingestion from order execution and enabling continuous high-throughput real-time processing monitored end-to-end via Datadog.
- Rebuilt Wagmo's acquisition flow using Next.js SSR, TanStack Query, and Redis-cached Node.js APIs,
eliminating onboarding bottlenecks and directly supporting a 90x increase in platform user growth. - Re-architected payment services into modular NestJS REST APIs with PostgreSQL and Prisma ORM, fully decoupling payment methods so new products could be added without touching or risking existing transaction logic.
- Unified three separate wellness backends into FastAPI and Node.js services backed by PostgreSQL and MongoDB, eliminating cross-domain sync failures and giving the React.js frontend a single consistent data layer.
- Implemented a RAG pipeline using LangChain, LlamaIndex, Pinecone, and PGVector with
OpenAI/Anthropic SDKs, enabling natural language property search and automated lease document
summarization where none previously existed. - Instrumented the full stack with Sentry and PostHog, giving product and engineering teams actionable error tracking and funnel analytics to prioritize fixes and ship features with measurable confidence.
Software Engineer
Cushman & Wakefield
09.2017 - 10.2020
- Built an interactive commercial property search platform using React.js, Redux.js, HTML5, and CSS3 -
replacing fragmented broker workflows with unified filtering, map-based visualization, and responsive
listings across office, retail, and industrial spaces. - Eliminated error-prone manual lease pricing by developing a TypeScript and Node.js calculation module handling CAM charges, base rent escalations, percentage rent, and triple-net lease structures against a PostgreSQL backend.
- Replaced insecure payment collection with a PCI-DSS-compliant infrastructure using Node.js REST APIs and Plaid for ACH verification, covering lease deposits, rent collections, and transaction fees persisted across PostgreSQL and MySQL.
- Resolved inconsistent UI behavior and build inefficiencies by architecting a Redux.js state management layer and optimizing asset bundling with Webpack across the JavaScript (ES6+) codebase.
- Reduced repeated database load on high-frequency property searches by introducing Redis caching, and improved internal dashboard data fetching through early adoption of Next.js and GraphQL.
- Removed engineering bottlenecks on property data reporting by developing Python and SQL access layers against PostgreSQL and MongoDB, enabling non-technical teams to query lease and property data independently.
Full-Stack Developer
Sephora
09.2016 - 09.2017
- Developed a virtual try-on feature using React.js component architecture and HTML5 Canvas rendering, giving shoppers a way to visualize products before purchase and directly reducing the hesitation that was preventing add-to-cart conversions.
- Optimized frontend delivery using Webpack bundle splitting and CSS3 code splitting alongside Redis
caching for frequently accessed product and category data, resolving the slow page loads that were driving up bounce rates across high-traffic pages. - Unified fragmented product, inventory, and recommendation data access into Node.js REST APIs and GraphQL endpoints backed by PostgreSQL and MongoDB, eliminating the inconsistent API responses that were causing UI failures across the shopping experience.
Education
Bachelor of Science - Computer Science
California State University
Fullerton 08.2012 - 05.2014
Skills
- Languages: TypeScript, JavaScript (ES6), Python, SQL (PostgreSQL)
- Frontend: React, Nextjs, TypeScript, Reduxjs, Webpack
- Backend: Nodejs, Nestjs, GraphQL, REST APIs, Redis
- Databases: PostgreSQL, SQL, MongoDB
- Cloud & Infrastructure: AWS (Lambda, API Gateway, Data Factory), Azure (App Services, AI Services, API Management), Docker, Kubernetes, CI/CD Pipelines AI
- Integration: LLM Orchestration (LangChain, LlamaIndex), OpenAI/Anthropic SDKs
Personal Information
Title: Senior Software Engineer
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Senior Software Engineer
Codingscape
09.2024 - Current
Senior Software Engineer
Vention
10.2020 - 09.2024
Software Engineer
Cushman & Wakefield
09.2017 - 10.2020
Full-Stack Developer
Sephora
09.2016 - 09.2017
Bachelor of Science - Computer Science
California State University
08.2012 - 05.2014