Cai Pengyang

As the manager of the intelligence engineering team(110+ members), I built the whole team from zero. The team include backend developers, frontend developers, App developers and QA. Our team is supporting all the products of Shopee as well as some other products of the SEA group. The features include

• Promotion Item Search
• Recommendation(include item, voucher, banner, brands…)
• User Tag Intelligence
• Computer Vision
• Listing Intelligence
• Machine Translation
• Audio intelligence
• Identify verification(KYC)

and so on. We are supporting business lines include Promotion, User, Marketing, Order, Listing, Seller… We are improving the core indicators of the e-commerce platform and the iteration efficiency of both business projects and technical projects.

We also developed our in-house AI infrastructors from zero. Include

• vector retrieval engine (based on Faiss, ScaNN, and redis Search)
• inference framework(based on Nvidia triton)
• feature KV middleware(kvRocks)
• data ingestion middleware

We also built our own AI API gateway to manage all our team’s AI services, including ACL, tenants quota management, sync & async protocol support, and 3rd party AI services(like ChatGPT, Google Translation…) management for the company.

Highlights

• 2022 Performance: A+(Outstanding)
• 2021 Performance: A+(Outstanding)

I was in the business architecture team under the IES group of Bytedance. We built core backend services and solutions for several products include

1. Douyin
2. TikTok
3. Huoshan
4. Live Stream
5. FaceU

My team was focused on the efficiency direction and responsible for environment management, traffic management, and tracing solutions for commonly used middleware by business teams. I was leading the environment management team and released non-live environments(BOE) and pre-releasing environments(like PPE) to support traffic control and business verification under different environments.

Highlights

• Release Environment and traffic governance for IES products

I was responsible for the DMP platform design, development, and maintenance for the e-commerce group in 58. I led the whole team and finished the 1st feature mining, store, analysis, and online retrieval services in 58. The platform was widely used in different components of our e-commerce platforms like Ads retrieval (targeting), recall, ranking, and creativities. I was also the team lead of the membership(VIP) system, promotion system, and enterprise management system. We also built the beta version machine learning platform with 2 teammates.

Highlights

• 3rd prize in 58 Programming Contest, 2018
• Feature Platform(ETL)

I was responsible for the SCM platform development and maintenance for TMall Supermarket, and Lirengou(俪人购). I worked on several components including purchase, item, inventory, order, return & refund. And also the core developer of the settlement system of the entire SCM platform.

Highlights

• DoD on 11.11 promotion day(2015)

I am one of the core developers to develop the 1st 3d action mobile game in Netease. We used our self-developed 3d game engine to develop the core action systems and also used scaleform(flash) as the game UI engine. And later we also introduced Cocos2d-X to support the 2d components and UI features. I finished several sub-systems of the game including account, package(bag), sprite(pet), equipment, skill, and so on. I also developed several auxiliary tools to help our teammates do real-time updates for the properties of the monsters and players in the game, auto-importing UI resources generated by Cocos2d-X framework solutions, and so on. I gained a lot of experience in UI engines, resource optimization, and animation effects.

Highlights

• Action Mobile Game

I was responsible for the development and maintenance work for QQ Mail. I collaborated with my teammates and developed several new features including batch operating(Select, Delete…), Star Mail, Mail Tags, Important mail, Mail Calendar & Events, Ads email aggregation, and so on. I also developed the email thumbnail cache service and it was used in the email preview. I also developed several features for the early versions of WeChat like “Add to favorites”.

Highlights

• QQMail & WeChat
• Drifting bottle