# Kaël Quet > Software Engineer at Persona Location: San Francisco Bay Area, United States Profile: https://flows.cv/kalquet An enthusiastic and creative developer seeking a software engineering position with a special interest in architecture, real-world solutions, and team development. ## Work Experience ### Software Engineer @ Persona Jan 2025 – Present | San Francisco Bay Area ### Senior Software Engineer @ Envoy Jan 2024 – Jan 2025 | San Francisco Bay Area Lead the technical implementation of a new User Profile microservice with Spring Boot, and Kotlin with gRPC as communication protocol Owned the engineering design, and backend implementation, and full release of a PDF document composer for the purpose of company customized legal NDA agreements that are to be signed by visitors Restructured the Rails service architecture, with added robustness in code coverage, and logging, of the facial recognition functionality which utilizes AWS Rekognition to stream- line visitor check-in that is available to all opted-in companies ### Senior Software Engineer @ Block Jan 2020 – Jan 2024 | San Francisco Bay Area Owning the implementation, design, and release of the Orders Cancellation/Refund endpoint which encapsulates item cancellation, payment refunding, and restocking for orders orchestrated by the Order Manager application available to all merchants Led the implementation of a Rails service to export merchant order data, leveraging gRPC and AWS S3. With strong coordination with product and supporting engineering teams, was able to successfully roll out the functionality to 250k global Square Online and Order Manager using merchants Utilized MySQL and Looker to estimate projected cloud spend and capacity in order to support new service feasibility, as well as ensure a 99% uptime SLA in global roll-out to all Order Manager users Owned, and implemented, with QUnit tested EmberJS, the complete frontend SQ Payroll application workflow for Paycheck Protection Program (PPP) Forgiveness. Released to all 2MM merchants, 53% of second round PPP borrowers were able to apply and be granted $30MM in loan forgiveness Identified testing pains and combined expertise of Postman, Newman CLI, and Bash to implement engineering automation tooling to create sample data in the staging environment ### Software Engineer @ Twine Jan 2018 – Jan 2019 | San Francisco Bay Area Undertook a backend engineering lead role on IRA, and splitting joint investment accounts efforts architectures and designs to deliver RESTful APIs provided by a Rails service on PostgreSQL Identified feature gap in support of investment accounts for non-US citizens and single-handedly implemented full-stack support as a hack day effort which was then deployed to production Worked with third party Apex Clearing and Plaid APIs for delivering financial account management app features Owned the CI/CD infrastructure and its migration to CircleCI 2.0. By leveraging workflow configurations, was able to cut build times by 50\% and simplify deployment processes to staging and production environments Took initiative to implement coding standards by incorporating CodeClimate into the engineering process which improvement test coverage from 91% to 96% Launched, and managed the Twine internship program which brought in 2 interns on a 4 month-long term ### Software Engineer @ Vineti Jan 2016 – Jan 2018 | San Francisco Bay Area Tech-led a team of four engineers to deliver thoroughly tested RESTful APIs and Rails application features with aid of RSpec and TDD methodologies Focused on reliability and end-to-end testing, managed the CI/CD workflows utilizing CircleCI, and BrowserStack Spearheaded the Vineti internship program, bringing in leadership/mentorship opportunities, as well as opening the full-time engineer hiring funnel ### Software Engineer @ Grand Rounds, Inc. Jan 2014 – Jan 2016 | San Francisco Bay Area ### Agile Engineer @ Pivotal Labs Jan 2013 – Jan 2014 | Toronto, Canada Area ### Software Developer @ AppDynamics Jan 2012 – Jan 2012 ### DSP Software Developer @ Research In Motion Jan 2011 – Jan 2011 | Waterloo, Ontario ### DSP Software Developer @ Research In Motion Jan 2011 – Jan 2011 | Waterloo, Ontario ### Software Developer @ Klocwork Jan 2010 – Jan 2010 ### Software Developer @ Kinzin Jan 2009 – Jan 2009 ### Software Developer @ Kinzin Jan 2009 – Jan 2009 ## Education ### Bachelor of Applied Science (B.A.Sc.) in Computer Engineering University of Waterloo ### Sir Winston Churchill ## Contact & Social - LinkedIn: https://linkedin.com/in/quet-kael --- Source: https://flows.cv/kalquet JSON Resume: https://flows.cv/kalquet/resume.json Last updated: 2026-04-11