"Automating the world’s computing infrastructure."• Released new internal AWS service which manages AWS infrastructure for new region builds.• Working towards safely managing infrastructure in live regions at all times.• Service managed approx. 3k internal AWS CloudFormation stacks in first months, growing rapidly.• Automated infrastructure in three AWS region builds: Calgary, Tel Aviv, and Melbourne, with more to come.• 35k internal customer accounts onboarded to broader ‘Managed Resources’ ecosystem.• Led effort to push AWS infrastructure creation 5 months earlier within new AWS region builds.• Our service was also built with CloudFormation: led work to automatically bootstrap our service.• Led work on operational excellence of new service: availability, CICD, monitoring, etc.• Experimented with formal TLA+ models of our service.• Consistent recognition for technical excellence and mentoring of new hires.• Reviewed manual change processes across AWS.

• Technical oversight over approx. 100 data engineers in 37 teams building ETL pipelines for retail services.• Technical advice for the broader data office, including approx 500 engineers, across many domains.• Approx 20 PB data capturing 80% of bank’s data sets.• Approx 60k ETL jobs across 3k repos, approx 3k users.• Built and managed capability backlog shared across all teams building ETL pipelines for the data office.• Caught various security, disaster recovery, design, and other issues before they reached production.• Built tooling to accelerate analysis of our ETL code across all jobs.• General development on Spark ETL framework and other code bases in Scala, Python, and Unix shell.• Ran a technical reading club for our data engineers.• Designed interviews for offshore engineers.

• Led team which built the bank’s first Kafka cluster.• Kafka infrastructure, operations, and applications.• Built the bank’s first real-time Kafka feeds, reducing home loan application drop-outs.• Became squad lead as project neared cancellation, re-engaged users and successfully delivered.• Added load assurance to our big data cluster’s Kafka ingest, handling edge cases in messy event streams.• Gathered and managed funding for Kafka load assurance, innovating when traditional approaches failed.• Led work on our cluster automation toolkit: an 80/20 solution for automated regression testing.• Scala training for approx 40 engineers.• Redesigned our hiring pipeline to pick candidates based on broad technical ability, enthusiasm, and independence, rather then specific technical skills

Senior software engineer for the Omnia project. Worked on our first Scala big data ETL framework:• Open sourced many of the bank’s big data codebases, primarily said ETL framework.• Redesigned our Scala ETL API to reduce user error.• Owned the initial upload of data onto our cluster.• Many other contributions to our core ETL tech stack: benchmarking, memory issues, serialisation issues, new standards, and much more.• Mentoring and support for our users.

Algorithmic trading.Increased profitability of automated trading algorithms for off-shore hedge fund in C# and R. Developed price prediction models, trading algorithms, and supporting infrastructure/tools.

Developed infrastructure for Standard Chartered’s Cortex pricing and risk system in Haskell.Working on greenfields projects surrouding Cortex system: functional programming, large-scale automated regression testing, new functionality for the development environment.

Simulating the movement of coal from mine to port to assist a two to ten year planning process.Development and verification of the simulation model, analyzing results in R and Excel.

Led development on an electro-magnetic radiation modeling package in C#.Reduced cycle times to three weeks for key users, introduced 3D drawing tools, improved stability and error handling, introduced Git as a source control solution.

Developed core infrastructure for Mincom’s flagship Ellipse product, mostly in Java.Led development on an Apache httpd single sign on module in C. Bug fixes and UI improvements in Java, Flex, and javaScript. Web services security, write code to transform UML to Java.