Phylicia Huynh

Senior Backend Engineer - Vestiaire Collective

May 2024 - Present

• Modernize PHP/Symfony and Kafka order workflows incrementally, preserving compatibility and aligning consistency and recovery with business risk.
• Developed a leadership-approved workflow modernization plan after comparing Conductor, Temporal, hosting options, staffing, and maintenance costs; implementation planning is underway.
• Operate Conductor workflows and workers; investigate execution, retention, and MariaDB/RDS performance to maintain production reliability.
• Delivered Zalando order and fulfillment integration across reservations, inventory, and per-line workflows, coordinating implementation with business and operations teams.
• Build reusable agent skills that capture system context for routine implementation and debugging, with engineering review and validation.
• Deliver frontend changes, Python services, and Conductor Java investigations with AI assistance; validate service boundaries through Cypress end-to-end tests.
• Supported Kubernetes infrastructure and CI/CD for an authenticity POC, then took on implementation of near-match photo detection in Python using PDQ and DINOv2 for a duplicate-listing project.

Senior Software Engineer - Ninja Van Tech Lab

Aug 2023 - May 2024

• Designed and delivered Go services for grocery distribution in the Mart business unit, coordinating teams around Kafka, MySQL, and Elasticsearch solutions.
• Increased unit-test coverage for Mart business unit services from approximately 25% to 70%; strengthened production dashboards, monitoring, and alerting.
• Mentored engineers through design and implementation feedback, and planned feature rollouts to avoid downtime and user impact.

Senior Backend Engineer - Digital Signal Service Co., Ltd

Sep 2021 - Jun 2023

• Contributed to rebuilding Onramp deployment infrastructure and CI/CD with Azure DevOps, GCP/GKE, Terraform, Helm, and Helmfile for repeatable service delivery.
• Established backend development and delivery practices, technical documentation, and guidance for engineers building internal platforms.
• Designed and implemented a Temporal-backed order-lifecycle state machine handling approximately 10x the previous production order volume.
• Delivered backend services for Store/Kitchen tools deployed across Highlands Coffee stores, supporting order processing and restaurant operations.
• Integrated ShopeeFood, Zalo, and GrabExpress with internal ordering and operational workflows using Go and PostgreSQL services.

Backend Engineer to Senior Backend Engineer - Grab

Jun 2019 - Aug 2021

• Built multi-currency support for the ads management platform and delivered a merchant self-service advertising platform.
• Built targeting-query configuration that enabled non-technical operators to manage advertising targeting.
• Improved reliability around unstable third-party dependencies in Go/MySQL microservices and distributed data flows.

Backend Engineer - Sendo Technology Joint Stock Company

Jul 2017 - Jun 2019

• Maintained a large PHP monolith and progressively migrated functionality into Go microservices, including checkout and product services.
• Built Salesforce integration and message-broker functionality within an e-commerce stack using MongoDB, Redis, and Elasticsearch.

Web Developer - YouNet Joint Stock Company

Oct 2013 - Jun 2017

Customized PHP/SocialEngine products with Zend Framework and MySQL, translating customer requirements into implementations and coordinating delivery.

Web Developer Intern - BeyondEdge Pte Ltd

Oct 2012 - Jun 2013

Developed and customized PHP/Joomla plugins for customer websites.