John Arstingstall Email and Phone Number

- Develop features and manage infrastructure, builds, and deployments for React Native (iOS & Android) mobile app, React web app, and NodeJS backend API.- Designed and built a process for adding asynchronous serverless workflows in AWS using CDK, SQS, Cloudwatch Events, Lambda, and S3- Manage MongoDB cluster in Atlas including schema design, search indexes, and constructing aggregation pipelines for analytical queries- Designed and implemented our Segment event tracking plan to help analyze user behavior in order to inform our future product roadmap- Set up alerts and monitoring across the entire stack with Sentry and Cloudwatch to ensure we are aware of any user issues immediately- Established engineering best practices across all projects with code review, consistent linting and formatting, testing, and security requirements

- Led a team tasked with the objective of lowering the company’s AWS spend. In 2 months time we were able outline a detailed plan to eliminate $1.2M in annual AWS costs.- Worked with a specialized team to separate the shared AWS infrastructure for the company’s two major products JS Orange and Cobalt. We migrated the Rails API from EC2 to ECS Fargate and performed cross-region replications of RDS, Elasticache, Redis, and Memcached clusters with little downtime and no loss of data.- Led frontend development of the Downstream product as it was introduced into Jungle Scout’s product suite by onboarding, coaching, and mentoring new additions to the team

- Designed and built a full stack Selling Partner API integration including the data retrieval and storage system in AWS (Cloudwatch Events, Lambda, DynamoDB, RDS Postgres), backend Django models and API endpoints, and frontend OAuth flows and data visualization (Typescript, React, HighCharts)- Designed and built a serverless notifications system (Email and SMS) in AWS (SQS, Lambda, Step Functions, Pinpoint)- Built the infrastructure for our data analytics API in AWS (Cloudfront, API Gateway, Lambda)- Contributed to our Amazon Advertising API data ingestion system (SQS, Lambda, Kinesis Firehose, S3, Redshift)- Built an internal library that wrapped the AWS CDK Python library that was responsible for managing our AWS infrastructure, monitoring, and alerts- Led frontend development of our customizable user-facing dashboards (Typescript, React, Redux, HighCharts)

- Worked closely with our Project Manager and CTO to vet stakeholder requests and set priorities for our department- Fostered a healthy team culture by facilitating Innovation Talks, Sprint Demos, and regular group outings- Held regular 1-on-1 meetings with team leads to ensure projects were on track and engineers were set up for success- Led the recruitment and interviewing process for the engineering department- Provided systems design and architecture support across three teams of engineers- Managed CI/CD pipeline and Kubernetes cluster on AWS- Built a centralized authentication service in Go that was utilized by all of our microservices for JWT issuance and validation

- Tech lead on team that built the company's Warehouse Management System; over 100,000 orders were processed in its first year of use and it has since eliminated $400,000 in annual Salesforce contracts- Tech lead on a team that rebuilt product visualizer, replacing a $100k annual contract- Transitioned legacy code base to distributed microservices running in Docker containers in a Kubernetes cluster on AWS

- Tech Lead on the Answer Automation team, the company’s flagship product which was the primary contributing factor to their $45M acquisition- Managed automated deployments of Answer Automation using Gitlab CI, Capistrano, and Jenkins

- Customize WordPress, Joomla, and Magento installations to the client’s needs- Handle all custom PHP and JavaScript programming- Code HTML, CSS and JavaScript templates based on Photoshop mock-ups

- Designed, built, and deployed jQuery Mobile websites for United Van Lines and Mayflower Transit franchisees- Built and deployed an automated payroll reporting system for Hometown Pizza using ASP.Net and Windows Server