Experience

Inverzio

• United Kingdom
• Technology, Information and Internet
• 1 - 100 Employee

• Chief Technology Officer

  • Oct 2022 - Present



Plum

• United Kingdom
• Financial Services
• 1 - 100 Employee

• Technical Lead

  • Jan 2021 - Oct 2022

  London, England, United Kingdom • Responsible for the delivery, people & health of two cross-functional squads. Each team currently consists of backend & mobile engineers, a PM, and a designer. People lead for 12 backend engineers. • Improved the backend hiring process by enhancing the ways of interviewing. Reduced the time to hire by 35% by introducing live coding as an interview step. • Mentored and promoted five engineers from junior/mid to mid/senior, where I also coached one of them to evolve to a tech… Show more • Responsible for the delivery, people & health of two cross-functional squads. Each team currently consists of backend & mobile engineers, a PM, and a designer. People lead for 12 backend engineers. • Improved the backend hiring process by enhancing the ways of interviewing. Reduced the time to hire by 35% by introducing live coding as an interview step. • Mentored and promoted five engineers from junior/mid to mid/senior, where I also coached one of them to evolve to a tech lead. • Introduced initiatives like the first microservices, new databases (MongoDB, Timescale), and tools like PubSub that will allow the engineering team to scale in the long term. • Proposed the architecture and led a redesign of the app’s home page, which reduced the P99 latency from 3.1 secs to 80ms.

• Senior Software Engineer

  • Aug 2020 - Jan 2021

  London, England, United Kingdom • Contributing to an event-driven system with Python, Flask, PostgreSQL, and GCP. • Redesigned the subscription mechanism and released a new subscription tier that increased the subscription rate by 50%. • Shaped and implemented a new budgeting feature for subscribed users that depended heavily on money transfers. • Proposed a new CI implementation that dropped the build time from 12min to 2min. • Drove the monolith decomposition by proposing and leading the… Show more • Contributing to an event-driven system with Python, Flask, PostgreSQL, and GCP. • Redesigned the subscription mechanism and released a new subscription tier that increased the subscription rate by 50%. • Shaped and implemented a new budgeting feature for subscribed users that depended heavily on money transfers. • Proposed a new CI implementation that dropped the build time from 12min to 2min. • Drove the monolith decomposition by proposing and leading the implementation of two new decoupled services in FastAPI (Python), and Fastify (Typescript).



Blueground

• United States
• Real Estate
• 700 & Above Employee

• Software Engineer

  • Mar 2018 - Aug 2020

  Greece • Worked on a backend service (Kotlin/Java with Spring Boot) that was responsible for automating the listing procedure of the properties directly from the back office application to property rental websites. • Proposed and implemented a CQRS initiative of properties from the Back Office database to MongoDB that improved the average response time of the service from 50 seconds to 4. • Worked on a microservices architecture project, responsible for competition analysis. The tech… Show more • Worked on a backend service (Kotlin/Java with Spring Boot) that was responsible for automating the listing procedure of the properties directly from the back office application to property rental websites. • Proposed and implemented a CQRS initiative of properties from the Back Office database to MongoDB that improved the average response time of the service from 50 seconds to 4. • Worked on a microservices architecture project, responsible for competition analysis. The tech stack was either a Kotlin (Spring Boot) or Node.js for each microservice and it depends on their nature. • Redesigned and migrated the back-office application from a Spring MVC to a REST API that integrates with an Angular application. • Dockerized and created CI pipelines (Jenkins & Gradle) for multiple microservices. Implemented and released multiple AWS Lambda functions (JavaScript/TypeScript) to cover business needs on-demand. Show less