Hoan Le Email & Phone Number

Hanoi, Hanoi, Vietnam

- Overview: Your.Rentals offers a comprehensive property management and vacation booking software platform which provides a centralized way to manage properties and service availability for property owners and managers. My team’s projects include the development of features such as extra service orders, integration of Payment gateways (Stripe, PayPal), Guest registrations (Spanish, Italian), Scheduled messages, and ongoing improvements to enhance existing features like conversation integration & email, SMS notification.- Team Leadership and Collaboration: + Led a team of 3 developers and 1 QA, employing Scrum practices to ensure efficient project execution. + Collaborated closely with product teams stakeholders to contribute to the discovery and planning of product features roadmap. + Participate in the team’s implementation progress and keep it aligned with the planned milestones in a prioritized order + Onboard & training members- Ownership and Support: + Took ownership of feature operations, including monitoring, migration, and feature releases. + Provided technical support for product features, addressing issues and troubleshooting as necessary. + Contribute the technical improvement plan of the team owned existing features along with current & upcoming development roadmap- Technology stack: AWS (Docker, helm, EKS, SNS, SQS, S3, Dynamo, AuroraDB, Event Bridge), Kubernetes, NestJS + TypeScript, AngularJS + ReactJS, Postgresql

Hanoi, Hanoi, Vietnam

- Project overview: Oddle Reservation is an integral component of the comprehensive Oddle product suite, empowering restaurants to efficiently manage their operations including service availability, table management, reservations, and menu orders, while providing customers with a seamless and convenient dining experience.- Leadership and Collaboration: Lead a team of 7 members using Scrum methodology. Collaborated closely with Project Managers and client stakeholders from Oddle to make informed technical decisions and sprint estimations.- Team Development and Training: Actively contributing to the growth and development of the team, provide review & mentorship- Client Interaction and Support: Took responsibility for service integration and enhancement, facilitating clear communication with non-technical stakeholders to ensure alignment on system functionalities and specifications.- Technology Stack: NodeJS, NestJS, NextJS, Typescript, Google Map & Booking API integration, AWS, RDS (MySQL), PHP Laravel, and Gitlab CI/CD.- Achievement: + Improve the dev-ops pipelines with Git flows, API & monitor tools implemented. + Better service performance: The system supports over 1000 merchants and their customers across multiple regions, experiencing peak loads of up to 15,000 requests per minute during significant restaurant events.

Hanoi, Thành Phố Hà Nội, Vietnam

Design and implement full solution for GoClass.vn Tutor Platform, a brand new product of Videa:- Solo development from scratch: first live web version after 3 months, first live mobile app (iOS + Android) after additional 3 months. Later, core service implementation of Goclass also be used in Lulla Kindergarten social network app first version launching in just 2 months of development.- Design architecture, prototype UI/UX and database.- Provide core implementation: + Backend and Data API: pub-sub streaming via web socket, conference using WebRTC, data middleware service & admin single page web app + Clients: web version for both teachers and students who use PC & laptops. Mobile version for students who use Android or iOS tablets & phones .- Guide freshers and juniors to enhance features development and infrastructure operations

Hanoi, Vietnam

- Involve in designing, developing and operating Education Tech products: Coursemos (Moodle-based) cloud service, customized Moodle development (badge, users & courses, material converters)- Principle development and training for junior

Hanoi, Vietnam

- Overview: Make a Crawler System which is scalable, capable of handling high workload, provides a reliable data pipe and integrates well with other application services in Zalo eco systems (Baomoi, Zalo news, Zalo OA, portals and pages on Facebook and other media channels).- Team size: 4 members. Role: member.- Involved in researching, designing and implementing scalable backend services such as web crawler, web app service, recommendation, admin / test/ monitoring api services.- Modified existing software to correct errors and improve performance.- Technology stack: Java, NodeJS, Memcached, RabbitMQ, SQL server, Thift, ZiDB (a custom implementation from Kyoto cabinet), Linux Server deployment.- Contribution and achievements: + Contribute the idea and improvement to architect scalable crawler system: • Split out the parsing logic into smaller services which are better at content change & format variations adaptability • Change from synchronous communication to asynchronous communication makes crawler and other news applications better autonomous capability. • Improve the operation process by introducing debug & admin-manual-process API (dead-letter- queue alternatives) + Better performance & reliability: The services operate really well at 99% availability without crashes and restart event serving more than 9 billion requests from internal applications over 6 months + Better scalability: Flexible content parsing & transformation logics as “plugin” of the crawler system. The system can pull the data from more than 500 sources of content publishers (various data, text, media format) + Better Article recommendation services: Can integrate various news applications & better performance

Hanoi, Vietnam

- Foundation development (Japanese call "Kiban" team): Work under supervision of technical manager, develop project workflow, provide development environment and delivery environment, technical training for business development team.- Design and develop system core components for scalable back-end (infrastructure layers and code base) using Domain Driven Design principle, working with developers and designers to implement front-end components which are flexible and can manipulate difference usages.