Overall responsibility for Stellar's platform software. I manage the Open Source Horizon API server and related development toolkits (SDKs), which provide the interface to the Stellar blockchain for programmers. Primarily Golang, some Typescript and Java.

Overall responsibility for platform backend services and SDKs. In particular, responsible for the Horizon API and related development toolkits (SDKs), which provide the interface to the Stellar network for programmers.

Building open source infrastructure for the Stellar distributed network, primarily using Go.

Building software in the serverless cloud on top of the Stellar network, an open source, blockchain-based distributed ledger. Current stack includes AWS Lambda, DynamoDB, GraphQL and TypeScript.

Overall responsibility for all technical work at LCO – mechanical, electrical, software, and IT infrastructure - reporting to the Observatory Director. Oversight of engineering budget (~$3M annual) and personnel (8 direct, 16 indirect reports). Operational responsibility for 21 telescopes, including day to day support; maintenance and repair; expansion and development of new capabilities. Working with the Observatory Director, developed and executed LCO's medium and long-term strategic goals. Ran and contributed to a diverse range of projects, including astronomical instrumentation; big data telemetry; distributed system optimisation; privacy and legal compliance. Implemented organisation-wide transition from functional groups to project-based matrix, to execute on core strategic goals.

Overall responsibility for all software at LCO, reporting to the Observatory Director. Led an experienced team of software engineers developing, deploying and maintaining the full software stack (1M lines of code), from the lowest level camera and telescope hardware controllers to the web portal for hundreds of users around the world. Responsible for long-range software strategy, feature prioritisation, interfacing to customers. Managed numerous software project timelines and deliverables.

Led transition from ad-hoc development to a scrum-based process, which set stakeholder expectations and reduced team stress. Ran the software hiring process, hiring four new team members.

In addition to existing roles, mentored and directed junior team members.

Architect and principal developer of the LCO adaptive network scheduler, the highest level of control for the robotic telescope network. Responsible for the design, implementation and performance characterisation of the scheduler. The scheduler performs continuous real-time solves of a novel, NP-hard scheduling problem, formulated as a discrete linear programming problem.

Self-directed research in advanced techniques and prototyping for robotic telescope scheduling of a fast-response, globally distributed optical time-domain observatory.