Gui Goncalves

Remote, UK Funding Circle 🔗

Engineering Manager Since Sep/23

Lead Engineer Oct/21 – Sep/23

Software Engineer Jul/21 – Oct/21

I work on the US business at FC. I lead the team that works on the credit strategy, maintaining the decisioning systems and co-designing processes with Risk and Operations. Some important projects the team has delivered:

• Lead the handover process for Engineering as part of a merger
• Automate credit decisions that previously had to be reviewed by an underwriter
• Design a domain-specific language for automated credit decisions
• Aggregate credit policies in a single read-only UI, for auditability
• Conduct event storming sessions to identify and document tacit knowledge

London, UK Citigroup 🔗

Vice President, FX Tech Jul/20 – Jul/21

I was part of the team maintaining Trader Toolkit, an application reading from dozens of data sources inside the bank (order books, APIs, relational DBs, kdb+) and exposing them as time series that can be composed, compared, correlated and plotted. This was done with a Kafka Streams-like library in TypeScript that ran on both Node and on browsers. My work involved:

• Maintaining the library that powered all those abstractions;
• Understanding how traders and quants used our applications, to prioritise adding new data sources and operations;
• Expanding our user base by adding the time series from different asset classes;
• Coach the team in our agile practices, to ensure value was delivered continually

London, UK Tractable 🔗

Software Engineer Oct/18 – Jul/20

I worked mainly on the AI Review product, which compares invoices produced by body shops with estimates generated by computer vision. During my time there, we tripled our client base with significant geographic expansion, the number of claims we processed going up by multiple orders of magnitude.

• Rewrote the backend from an anaemic model to a semantically rich one. The time taken to add a new check decreased from a month to less than a week
• Launched a new product, designed in collaboration with some of our biggest clients
• Helped in the launch of the AI Estimating product — where orders are generated entirely by our trained models, based on smartphone pictures and some simple questions

Remote, US Lastline (now part of vmware) 🔗

Dec/15 – Oct/18 Software Engineer

When I joined Lastline, they were known mainly for their industry-leading malware sandbox. Over time, their network security product became more robust. I worked on the webapp that put everything together: analysts used it to find events and publish signatures; reverse engineers used it to observe malware behaviour; admins used it to manage their network and devices.

Initially a “skunkworks” project, I was part of the small team launching NTA, a product that analysed and correlated netflows to tell a complete story, according to the ATT&CK framework.