Sean Robertson

United States Digital Service 08/2022 - 11/2024

Digital Services Expert - Senior Software Engineer

Designed and built critical API infrastructure enabling digital document exchange between Department of Homeland Security and Department of Justice, increasing case throughput by 10x
Led technical initiatives across multiple government agencies including ICE, USCIS, CBP, and EOIR to modernize asylum processing systems
Architected RESTful APIs using ASP.NET Core and C# to facilitate inter-agency data sharing and communication
Managed feature development lifecycle including requirements gathering, system design, sprint planning, and stakeholder presentations
Delivered technical presentations and Q&A sessions to senior government officials and agency leadership
Implemented secure cloud solutions using Azure, Docker containers, and Microsoft SQL Server

Technologies: ASP.NET Core, C#, Microsoft SQL Server, Node.js, Azure Cloud Platform, Docker, IIS, ColdFusion

Akido Labs Inc 02/2021 - 01/2022

Senior Application Engineer

Developed HIPAA-compliant web and mobile applications for medical and volunteer organizations serving 5000+ users
Built comprehensive documentation system and onboarding process, reducing new developer ramp-up time by 50%
Implemented microservices architecture using Kubernetes and Docker for improved scalability
Mentored 3 junior developers and led technical interviews for engineering team expansion
Delivered features in 2-week Agile sprints using React, React Native, and TypeScript

Technologies: React, React Native, TypeScript, Node.js, Express.js, PostgreSQL, Couchbase, AWS, Kubernetes, Docker

Free Birthday Fun LLC 06/2019 - 06/2020

Chief Technology Officer | Senior Software Engineer

Architected and built complete SaaS platform from concept to production serving birthday market segment
Developed Progressive Web Application with offline capabilities and geolocation features
Implemented serverless architecture using Google Cloud Functions reducing infrastructure costs by 60%
Established CI/CD pipeline with GitHub Actions for automated testing and deployment
Led technology strategy, business development, and engineering hiring decisions as founding CTO

Technologies: React, Node.js, Google Cloud Platform, Firebase, Serverless Architecture, Web Components, Algolia Search, Svelte

Very Good Software Company (Freelance) 02/2019 - 06/2021

Senior Software Consultant | Sole Proprietor

Delivered custom software solutions for small businesses and nonprofit organizations
Developed 5 Progressive Web Applications using modern JAMStack architecture
Managed complete project lifecycle from requirements gathering to deployment and maintenance
Handled all business operations including client relations, contracts, and financial management

Technologies: React, Vue.js, Svelte, Node.js, JAMStack, Serverless Functions, Firebase, Google Cloud Platform

Webtellect 04/2018 - 11/2018

Senior Software Development Engineer

Led team of 2 developers building laboratory automation software for Intellectual Ventures Labs
Reduced manual testing processes from months to hours through automated worklist generation system
Designed and implemented real-time collaboration features using WebSockets, winning major customer approval
Created RESTful APIs with Node.js and PostgreSQL for robot control and experiment management
Managed project planning, sprint execution, and stakeholder communication using Jira

Technologies: React, Redux, Node.js, PostgreSQL, GraphQL, Meteor, WebSockets, MongoDB, Linux, Bash

NBCUniversal 03/2017 - 04/2018

Senior Software Development Engineer

Built scalable web applications for nbcnews.com serving millions of daily users
Developed real-time content editing system for NBC News editorial team improving publishing speed by 40%
Mentored 2 junior engineers on React best practices and system design principles
Led sprint planning, code reviews, and architectural decisions for front-end team

Technologies: React, Node.js, Express.js, PostgreSQL, Google AdWords, Web Components

General Assembly 11/2015 - 02/2017

Web Development Immersive Instructor | Lead Instructor

Taught full stack web development to 60+ students across 4 cohorts with 85% job placement rate
Developed and refined curriculum for modern web technologies including React, Node.js, and MongoDB
Maintained student NPS score of 55+ through effective teaching and mentorship
Managed team of 3 teaching assistants and conducted regular performance reviews

Technologies: HTML5, CSS3, JavaScript ES6, React, Angular, Node.js, Ruby on Rails, MongoDB, PostgreSQL, Git

Groupon 09/2014 - 11/2015

Software Engineer

Developed HTML5 games and incentive programs increasing customer retention by 25%
Built mobile web applications for Groupon travel services using responsive design
Created standalone web applications in R&D environment using Node.js and Redis
Managed project design and stakeholder expectations as sole engineer on R&D initiatives

Technologies: Node.js, Express.js, Redis, JavaScript, HTML5, CSS3, Ruby on Rails, CoffeeScript, SASS

Metia 10/2013 - 09/2014

Junior Web Developer

Developed enterprise websites for Microsoft and other Fortune 500 clients
Built responsive front-end interfaces using JavaScript, HTML5, and CSS3
Implemented back-end functionality using C# and .NET Framework
Collaborated with account managers to deliver projects meeting client specifications

Technologies: HTML5, CSS3, JavaScript, .NET Framework, C#, MySQL, Microsoft SQL Server, Team Foundation Server

Concurix 02/2013 - 08/2013

Software Engineering Intern

Technologies: JavaScript, Node.js, Express.js, HTML, CSS, Jade, Bash Scripting

Professional Summary