Leading a squad with 10 engineers to strive for growing subscriptions of our delivery platform products. 🚀 Operational Leadership & Strategic Expansion: - Successfully managed the launch of subscriptions in 6 European countries resulting in a 160k uplift of subscribers. - Halved the subscription rollout ETA, executing 2 country launches in 2 months, a significant improvement from the previous 4 months per country. - Displayed agility in adapting to regional requirements, notably law compliance, while concurrently implementing critical complex features. 🛠️ Technological Advancements & Testing: - Introduced internal automated tools, optimizing infrastructure setup tasks and application deployment. - Led the Subscriptions Domain Test Automation, achieving significant increases from 70% to 92% increment in test coverage for Backend, Web, iOS, and Android. - Initiated Testing WAR Room sessions, effectively reducing testing effort and time. 👥 Team Dynamics & Culture: - Managed a diverse team of 10, fostering an environment of collaboration, evidenced by a notably high eNPS score two times in a row (+47 above the org.). - Received acclaim from peers and direct reports for seamless integration efforts, team morale upkeep, and unification initiatives. - Strengthened ties with the product team, ensuring clear communication and joint achievement of business objectives. 🌍 Organizational Impact & Influence: - Proactively set up task forces to handle unplanned challenges, ensuring product features remained unblocked. - Collaborated with fintech, Location, and Billing/SAP teams on critical billing address issues. - Led Test Automation initiatives, realigning strategies and guiding team members towards goal completion.

- Scaled and managed an engineering group with 24 engineers including backend, frontend, mobile, and QA to achieve different product goals and support the company's mission. - Designed and standardized hiring process for different roles and seniorities. - Hired 12 engineers and designed appropriate team topology. - Conducted management responsibilities including 1-1, goal setting, performance management. Took care of career growth for all engineering members. - Decreased 60% repetitive operation tasks to save the engineering bandwidth and increase operational efficiency. - Built engineering culture and practices, and played Scrum coach to streamline product development processes from onboarding training to team agile cadences (e.g. product backlog refinement and planning) - Built basic incident management process and pioneered SRE mindset with very limited resources to increase the awareness of service quality. (e.g. Introduce proper tools to improve alerting & and monitoring) - Increase team autonomy - Introduced and led the team to move from monolith to microservice architecture gradually. - Oversaw the IT cost and evaluation for the organization. Negotiated cost-saving committed pricing plan for critical services to save around 20k USD per month. (SaaS procurements including streaming, chatting, and CICD pipeline solutions) - Handled tough communication and kept up team morale during re-organization. - Rolled out a streaming product line to create a new revenue stream.

● Team builder / Culture Facilitator - Main facilitator in the company vision workshop w/ over 60 people to help everyone onboard the vision. - Agile and digitalization activator. Introduced jira, confluence, and automation. ● Business collaboration / Startup Mindset - Fundraising supporting, including PoC and technical Due Diligence for potential investors - Performed feasibility analysis and created PoC in smart keyless solution, connected vehicle platform and vehicle simulation platform in limited time and resource. - Built potential business collaboration with different partners on behalf of software and IT technology. - Established conversation and relationship with MaaS company, leading ODMs, and startups in related fields. - Worked with product and marketing team, explore and uncover the business needs to provide customer-centric approach and architectural solution - Prototyped two-wheeler BLE smart key solution in less than a month to secure a key client ● Leadership and Team Management - Built software team from scratch and played leadership across multiple functions. * Responsible for team building and hiring * Built up engineering practice including git flow, code review process, CI/CD pipeline * Managed development team in backend/iOS/Android/firmware * Coordinated with cross functional R&D team including HW/EE, mechanical * Successfully introduced SCRUM methodology and practice into the team * Managed external resources to facilitate product development from suppliers and vendors in various fields e.g. cloud, hardware. - Filed a patent (currently under review) - Collaborated with IP team to conduct patent infringement analysis for FTO - Performed a IoV with serverless architecture speech for over 60 people at 28th CADMEN Tech. Conf.

1. Team player with proactive mindset. Own the changes I seek. 2. Work with PM and engineering teams from other countries to deliver product serving 7 countries in south east Asia. 3. Contribute and help team on smoothing scrum process on daily basis. 4. Help SRE and product team on load testing during ShopBack Peak Season. 5. Mentoring juniors on software development and process. # ShopBack Cashback Buddy - Browser extension - Fullstack design and development - React / Redux on browser extension - Backend service for Frontend (TypeScript, Koa, MySQL, MongoDB, Redis) - Coupon service (Nest.js, MySQL, Redis, typeorm) # ShopBack Internal Management Platform - Multi-React-apps developed simultaneously by different teams on a single platform - Deliver coupon related features enabling internal users to manage coupon data accurately for all platforms. - CI/CD development process with TravisCI # Coupon Scrapers - Use Python scrapy to crawl almost 10 coupon sites on 5 countries. - Integrate Slack with scraped result for coupon ops.

Gogoro Engeny Network Operation Platform * Lead development team to deliver an internal platform to manage$10B+ worth company assets daily. * Work with PM to transform complex users' needs into optimized flows and break down to tasks for developers in technical design point of views. * Coach junior developers on nodejs, backend development, etc... * Design an architecture of near-real-time alerting system which consolidates several sources or services inside the company in hopes of replacing manual monitoring and unnecessary FAE dispatching to save costs. * Design a flexible inline rule engine of alerting system which can be configured with enough flexibility and semantics for engineers of NOC (Network Operating Center). * Conduct scrum practice in team and play role of scrum master.

Innovation Product (Not Yet Release) * Communicator and leader being responsible for software part among different function and platform teams e.g. Mobile, Machine Learning, Firmware, Power Chain, Stack holders. * Deliver entire backend service independently which as an IOT backend server including design/development/devOps tasks. * Fastify (Nodejs HTTP framework) / EKS / Helm / Harbor (docker registry) / GitLabCI Gogoro Core Backend Server as an IoT Edge Server * Solve race condition issue by adopting distributed lock implemented with Redlock in C# * Conduct data migration smoothly with new platform

Trend Micro Home Network Security An easy plug-n-use box which brings comprehensive network security to your entire home network. You can control and monitor all devices at home preventing threats or attacks from the outside world. Besides, profile-based parental control help you manage your kids usage and stop them from receiving inappropriate content. Ability to work with frontend, mobile and embedded client smoothly Design and build a backend system from scratch Implement a production level NodeJS RESTful API server - Web framework : express , ORM : loopback , TDD : mocha - RDBMS : PostgreSQL , NoSQL : Redis - Session management : JSON Web Token - Role-based control : 2-way SSL, JWT, basic auth - CI/CD : Jenkins, Puppet Experienced in designing a distributed system - Stability Design : PM2 - Process manager Let It Crash - Scalability Design - For Behavior : Load-Balance, Reverse Proxy - For State : CDN, Caching - Availability design - Web Service : Active-Active Fail-Over - Database : Active-Passive Fail-Over Proficient with AWS services Streaming-based Data Pipeline Service Develop and build-up real-time streaming data pipeline for ETL, rule-based notification, and log archiving task. Run microservices architecture under Kubernetes Build, ship, run the Docker way Use Kafka as messaging mechanism Adopt concept of AWS Lambda - write simple and independent processing unit by NodeJS - Write stream-based application by nodejs stream Basic knowledge to design a simple data lake Tools : NodeJS, Docker, Ansible, Jinja, AWS SES, AWS S3, Lambda Serverless Streaming Event Aggregator Service Design and implement a near-realtime micro-batching service by AWS streaming solution for products dashboard. User can know their network usage or threats blocked in near real-time. Ability to design a service by adopting Serverless architecture Experienced in AWS streaming solution : Kinesis stream Lambda RDS Know how to tuning Kinesis and Lambda PostgreSQL bulk upsert, CTE and Partition

Distributed AAA Proxy Dispatcher System Design and implement Wi-Fi AAA proxy system for high loading public Wi-Fi. The system is responsible for doing policy control like rate-limit, session-timeout, and captive portal. Use RADIUS RFC 2865, 2866 protocol and open source project - FreeRADIUS Hardware L4 load-balancer Master Slave HA in Oracle Solid WLAN related knowledge Concurrent users : 100, 000, Throughput : 1500 req/sec, 3.5M sessions/day Real-Time Billing and User Online/Offline System Design and implement Wi-Fi AAA proxy system for high loading public Wi-Fi. The system is responsible for doing policy control like rate-limit, session-timeout, and captive portal. Use RADIUS RFC 2866 protocol and Implemented by Java Broad use of Oracle PL/SQL Integrate SNMP and SMS for alert mechanism Use a lot of shell and perl script for file processing and scheduled jobs

FTP File Crawler and NB Patch Searching System A tool with web interface that can craw files on internal FTP sites and provide simple UI for better searching the details info of patches. PHP, MySQL, JQuery, Apache, Windows