Senior Full-Stack Engineer with 10+ years of experience building high-performance web architectures and scalable cloud infrastructure. Proven track record transforming complex business requirements into distributed global systems, optimizing low-latency backend pipelines, and leading cross-functional engineering teams. Led major infrastructure and platform transformations on AWS and Kubernetes, developed custom data ingestion and preprocessing layers, and designed global-first architectures for localized data without sacrificing speed. Expertise across Node.js, React, Ruby on Rails, Python (Django/FastAPI), and MongoDB/MERN for production-grade distributed applications.…

W. Harrison

Senior Full-Stack Engineer with 10+ years of experience building high-performance web architectures and scalable cloud infrastructure. Proven track record transforming complex business requirements into distributed global systems, optimizing low-latency backend pipelines, and leading cross-functional engineering teams. Led major infrastructure and platform transformations on AWS and Kubernetes, developed custom data ingestion and preprocessing layers, and designed global-first architectures for localized data without sacrificing speed. Expertise across Node.js, React, Ruby on Rails, Python (Django/FastAPI), and MongoDB/MERN for production-grade distributed applications.…

Available to hire

Senior Full-Stack Engineer with 10+ years of experience building high-performance web architectures and scalable cloud infrastructure. Proven track record transforming complex business requirements into distributed global systems, optimizing low-latency backend pipelines, and leading cross-functional engineering teams.

Led major infrastructure and platform transformations on AWS and Kubernetes, developed custom data ingestion and preprocessing layers, and designed global-first architectures for localized data without sacrificing speed. Expertise across Node.js, React, Ruby on Rails, Python (Django/FastAPI), and MongoDB/MERN for production-grade distributed applications.

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Skills

Experience Level

JavaScript
Expert
AWS
Expert
Python
Expert
Node.js
Expert
Django
Expert
Docker
Expert
TypeScript
Expert
Ruby on Rails
Expert
PyTorch
Expert
PostgreSQL
Expert
Vue.js
Expert
API
Expert
React JS
Expert
MySQL
Expert
MongoDB
Expert
Leadership
Expert
Kubernetes
Expert
Keras
Expert
Express
Expert
Azure
Expert
Jira
Expert
GraphQL
Expert
Golang
Expert
Redis
Expert
Google Cloud
Expert
Ruby
Expert
Go
Expert
GitHub CoPilot
Expert
Elasticsearch
Expert
Selenium
Expert
SQL
Expert
DynamoDB
Expert
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Language

English
Fluent

Work Experience

Senior Systems Architect at Amazon
January 1, 2022 - Present
Platform orchestration for the rewards platform: spearheaded the technical transformation, built a modular microservices backend and a secure AWS environment from the ground up. Led process automation by replacing legacy manual systems with a fully automated transaction-tracking pipeline via Plaid API. Implemented robust CI/CD and Infrastructure-as-Code, boosting velocity and reliability.
Senior Software Engineer at Amazon
January 1, 2022 - December 31, 2025
Led architecture for distributed systems, built AI/ML-powered automation, and implemented MLOps pipelines to deploy, monitor, and continuously improve AI/ML models. Improved latency, scalability, and security while collaborating with applied scientists, data engineers, and product teams. Mentored junior engineers and contributed to code reviews and engineering best practices across the team.
Senior Full Stack Engineer at Karla Rewards
January 1, 2020 - January 1, 2022
Led frontend, backend, DevOps, and QA; translated complex business requirements into scalable solutions; created tech roadmaps and led the engineering function to support growth and funding rounds.
Head of Engineering at Karla Rewards
January 1, 2020 - December 31, 2022
Led the technical vision and growth for Karla Rewards, building infrastructure from scratch (secure, cloud-native, modular microservices). Implemented real-time reward tracking, merchant integrations, CI/CD pipelines, and Infrastructure-as-Code. Managed cross-functional teams, improved velocity by over 40%, secured initial funding with a comprehensive technical strategy, and scaled engineering for rapid user growth.
Senior Software Engineer / Full-Stack Lead at Outliant
January 1, 2019 - January 1, 2020
Served as a technical lead across multiple projects from conceptual architecture to successful global launch. Optimized high-traffic applications using Ruby on Rails, Django, and Node.js, built responsive interfaces with React, and owned software lifecycle through data optimization and multi-cloud deployments on AWS and Azure.
Software Engineer at CodeGenesis
January 1, 2019 - January 1, 2020
Collaborated across cross-functional teams to deliver high-quality software, participated in code reviews, and ensured adherence to engineering best practices; wrote unit tests, performed debugging, and maintained technical documentation; contributed to scalable, production-ready solutions.
Associate Engineer at CodeGenesis
January 1, 2019 - January 1, 2020
Gained hands-on experience with agile methodologies and full development lifecycle; led development of consumer-facing features using Ruby on Rails; collaborated across teams to ensure adherence to engineering best practices.
Software Engineer at Genesis
January 1, 2019 - January 1, 2020
Collaborated with cross-functional teams, participated in code reviews, wrote unit tests, debugged, and maintained documentation to ensure reliability and scalability.
Senior Software Engineer at Outliant
January 1, 2019 - January 1, 2020
Early engineer who pitched to clients, gathered and managed requirements, and delivered tailored solutions; worked across front-end, back-end, and DevOps to ensure end-to-end delivery; contributed to scalable, high-performance apps across tech stacks including Ruby on Rails and infrastructure development; led features to meet client goals.
Senior Software Engineer at Outlier
January 1, 2019 - December 31, 2020
Early engineer responsible for gathering client requirements, pitching to win collaboration, and delivering tailored solutions. Worked across frontend, backend, and DevOps to deliver scalable, high-performance applications across multiple stacks (Ruby on Rails, infrastructure). Wrote unit tests, debugged, documented, deployed, and provided post-launch support; led seven diverse projects and contributed to improved cloud integration and user experiences.

Education

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Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Retail, Media & Entertainment, Professional Services, Other

Skills

Experience Level

JavaScript
Expert
AWS
Expert
Python
Expert
Node.js
Expert
Django
Expert
Docker
Expert
TypeScript
Expert
Ruby on Rails
Expert
PyTorch
Expert
PostgreSQL
Expert
Vue.js
Expert
API
Expert
React JS
Expert
MySQL
Expert
MongoDB
Expert
Leadership
Expert
Kubernetes
Expert
Keras
Expert
Express
Expert
Azure
Expert
Jira
Expert
GraphQL
Expert
Golang
Expert
Redis
Expert
Google Cloud
Expert
Ruby
Expert
Go
Expert
GitHub CoPilot
Expert
Elasticsearch
Expert
Selenium
Expert
SQL
Expert
DynamoDB
Expert
See more