Personalization : 2020 - NowI have been the lead developer focusing on a high tps system that filters all items before they are displayed on the website. The system processes 15M items a second with a p90 latency of 10ms.Global IT : 2018 - 2020Lead Developer working on the technology used by all Amazon IT Support engineers and internal IT products. Designed, supported and built internal CRM system for support engineers. Supported internal tools for updating user passwords, scheduling meetings and software license management. International Tech : 2017 - 2018InTech was focused on improving the internationalization and localization of Amazon's website. The team's goals were to improve and expand Amazon's reach for international and non-english speaking customers. In this role I designed and developed a reporting database and ETL processes to track the websites localization and designed a system to detect translation errors on the site.

Responsible for: - Product specifications, features and roadmap - Managed team of 3 remote developers - Personally developed backend system (database + REST api) - Personally developed react web frontend - Developed react native iOS and Android mobile client - Developed and managed all infrastructure systems (build, deployment & monitoring systems) - Developed prototype ML classification system of downloaded and scraped product pagesTechnologies used include python, django, postgres, javascript, react, react native, ansible, AWS, Ubuntu Server & git

Responsible for overall system architecture, reviewing designs and work of team members. Team size varied between 4 onsite developers and two remote teams in Poland and India.Developed with team a Java server and mobile xforms client for use in the delivery of mobile health applications in the developing world.Technologies used include java, mysql, ActiveMQ, CouchDB, git, CentOS, rackspace & AWS

Responsible for features, architecture and uptime of developer portal and script execution systems.The developer portal enabled customers to sign up for the system, add features to their account and manage payments. The script execution system is similar to heroku in that developers could upload scripts written in lua that they could then access remotely. Targeted customers were game developers.Technologies used include php, mongrel2, mongo, lua, AWS, Ubuntu Server & chef

Second developer hired, responsibilities included system re-write, development of all software systems, building and managing all technology teams and system administration and helpdesk. - Hired and managed the helpdesk, development, QA, reporting and webdev teams (~10 people)- Did development as well as system design- Worked with Project Management on feature planning and reporting to management on schedules and progress- Responsible for hardware acquisition (laptops as well as production datacenter servers)Technologies used include: Java, mysql, svn, CentOS

Started as a developer on warehouse systems, moved into a software manager role and then to an individual contributor. - Designed and built the customer order workflow system. All orders passed through COW which would orchestrate the multiple steps required to move and order through fraud, payments, warehouse assignment and finally to completion. - Managed three teams within warehouse systems. (QA, Reporting & Metrics, Development) comprising ~20 peopleTechnologies used include: c, java, oracle, perl, perforce

- Developer working on Netscape Navigator 3 & 4. - Developed and exposed a javascript api to the internal cache.- Joined research and development team working on RDF based information aggregation and visualisation appTechnologies used include: c, javascript, perl, cvs