Tech Lead - E-commerce Recommendation Infrastructure - San Jose
TikTok
San Jose, CA · Posted November 13, 2026
Just laid off? Start here: a plan for the first weeks
More in California job market · Tech Lead jobs in California (24) · All Tech Lead jobs (45) · Technology & Software · Engineering jobs
More roles at TikTok
- TikTok Shop - Head of Listing Quality - US · Seattle, WA
- Machine Learning Engineer, TikTok Brand Ads · San Jose, CA
- Head of Global Events and Experiential Marketing, GIMC GBM - GBS
- TikTok Shop - Category Manager, Personal Care, K Beauty
- Research Scientist in Generative AI Graduate (Intelligent Creation) - 2026 Start (PhD) · San Jose, CA
- TikTok Shop - Partner Development Manager, ISV Commerce Partnerships · Seattle, WA
Similar jobs
- Senior Site Reliability Engineer · Airbyte · San Francisco, CA
- Senior Backend Engineer, Agent Infrastructure · Airbyte · San Francisco, CA
- Senior Backend Engineer, Video Platform Integration · Patreon · San Francisco, CA
- Staff Software Engineer, Control · PsiQuantum · Palo Alto, CA
- Senior Optical Systems Validation Engineer - Optical Circuit Switch (OCS) · PsiQuantum · Palo Alto, CA
- Sr. Server Hardware Systems Engineer (Starlink) · SpaceX · Palo Alto, CA
Where San Jose, CA ranks
Where San Jose, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for marketing pay after cost of living$204k · of 16
- #1Best cities for aerospace and defense pay after cost of living$187k · of 19
- #2Best cities for security pay after cost of living$220k · of 10
- #3Best cities for technology pay after cost of living$205k · of 80
- #5Best cities for technology jobs1,449 openings · of 100
- #5Cities with the most jobs that do not need a four-year degree in the West Coast162 jobs · of 47
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
TikTok has filed one layoff notice in the last twelve months, covering 250 workers, most recently August 2026. These are public filings with state labor departments, and an open role can sit alongside them. See the filings
Skills this job asks for
Say which you have and which you want to build. We use it to match you to jobs like this one.
About the job
Our Team E-commerce is a new and fast growing business that aims at connecting all customers to excellent sellers and quality products on TikTok Shop, through E-commerce live-streaming, E-commerce short videos, and commodity recommendation. Our E-commerce Recommendation Infra team is responsible for building up and optimizing the infrastructure for such recommendation systems, so as to provide the most stable and best experience for our users. We work closely with applied machine learning engineers and build scalable systems to support all kinds of innovative algorithms and techniques.
Responsibilities - Build industry-leading globalized large-scale recommendation system; - Design and build high performance online systems and reliable data pipelines; - Optimize and evolve the system continuously so as to support the skyrocket increase in both user traffic as well as the data amount; - Work with cross functional teams to deliver end-to-end infrastructure solutions to address critical product challenges and improve recommendation performance.
Minimum Qualifications - Bachelor's degree or above, majoring in Computer Science or related fields - At least 5+ years of experience building scalable systems. - Strong software development experience with C++, Java or other programming language; - Good teamwork and communication skills, positive and optimistic, and strong sense of ownership; - Experienced in at least one of the following areas: personalized recommendations, search engine, advertising, machine learning infrastructure, distributed storage system, big data frameworks.