Express.js Jobs in California

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Senior Network Security Engineer - USDS

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A95908A Apply to this job Share this listing: Responsibilities Team Intro You will be a part of the Network Security Operations team responsible for Cyber Defense and Engineering. The Network Security Operations team's primary focus is management of security and defense platforms, technologies, tools, and services supporting security controls across TikTok's environments. As a Network Security Operations Specialist, you will be resp
Posted 60+ days ago | Updated 8 hours ago

Tech Lead Frontend Engineer, Ads Growth Platform

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A30360 Apply to this job Share this listing: Responsibilities We are the front-end team of the Ads Growth Platform, responsible for business and technical development in areas such as Growth Mid Platform and business growth. We are committed to building a powerful growth flywheel engine to increase the GMPT revenue scale, including building a unified omni-channel reach/rendering SDK (SSR, CSR), a unified content production engine dr
Posted 60+ days ago | Updated 8 hours ago

Software Engineer(Backend), Multimedia Arch Media Platform, Media Tooling - San Jose

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A133016 Apply to this job Share this listing: Responsibilities About the Team: The Media Platform team is responsible for optimizing app experience related to performance for TikTok users. This team collaborates with all teams in the video creation and consumption ecosystem to provide end-to-end optimization solutions, including client, shooting, uploading, video playback, video delivery and player, etc. We are looking for backend e
Posted 60+ days ago | Updated 8 hours ago

Software Development Engineer, Ads QE - San Jose

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : WMN1 Apply to this job Share this listing: Responsibilities Ads Quality and Efficiency Technology focuses on end-to-end quality assurance and technology-driven efficiency enhancement across the entire ads ecosystem, including Ad Manager, Delivery System, Review System, Conversion Measurement, and related infrastructure. Our Mission: To ensure system reliability, usability, stability, and user satisfaction through: 1) Quality Enginee
Posted 60+ days ago | Updated 8 hours ago

Senior Software Engineer, Data Platform - Experimentation & Evaluation

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : X9644 Apply to this job Share this listing: Responsibilities Team Introduction Our mission in experimentation and evaluation team is to build the next-gen A/B testing platform, that empowers the company to make data-driven decision for the products. The supported scenarios include recommendation, push, ads, search, mobile app, UI interaction and service upgrades etc. Our platform's capabilities cover the entire experiment life cycle
Posted 60+ days ago | Updated 8 hours ago

Senior Software Engineer(Backend), Multimedia Arch Media Platform, Media Tooling - San Jose

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A25859B Apply to this job Share this listing: Responsibilities About the Team: The Media Platform team is responsible for optimizing app experience related to performance for TikTok users. This team collaborates with all teams in the video creation and consumption ecosystem to provide end-to-end optimization solutions, including client, shooting, uploading, video playback, video delivery and player, etc. We are looking for backend e
Posted 60+ days ago | Updated 8 hours ago

Senior Software Development Engineer, Ads QE - San Jose

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : E6002 Apply to this job Share this listing: Responsibilities Ads Quality and Efficiency Technology focuses on end-to-end quality assurance and technology-driven efficiency enhancement across the entire ads ecosystem, including Ad Manager, Delivery System, Review System, Conversion Measurement, and related infrastructure. Our Mission: To ensure system reliability, usability, stability, and user satisfaction through: 1) Quality Engine
Posted 60+ days ago | Updated 8 hours ago

Junior Software Development Engineer, Ads QE - San Jose

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A205679 Apply to this job Share this listing: Responsibilities Ads Quality and Efficiency Technology focuses on end-to-end quality assurance and technology-driven efficiency enhancement across the entire ads ecosystem, including Ad Manager, Delivery System, Review System, Conversion Measurement, and related infrastructure. Our Mission: To ensure system reliability, usability, stability, and user satisfaction through: 1) Quality Engi
Posted 60+ days ago | Updated 8 hours ago

Data Scientist - Trust and Safety - Los Angeles

TikTok

•

Los Angeles, California, USA

Full-time

Location : Los Angeles Employment Type : Regular Job Code : A200503 Apply to this job Share this listing: Responsibilities As a Data Scientist in TikTok's Trust and Safety team, you will drive data driven decisions and forming roadmaps in ensuring that TikTok remains a safe, trustworthy, and risk-free environment. By implementing your domain knowledge, you will help diagnose, triage, and treat large-scale safety issues. You will scope out projects, use ground-truth data to inform strategi
Posted 60+ days ago | Updated 8 hours ago

System Performance Engineer - Server Platform

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A106410 Apply to this job Share this listing: Responsibilities About the Team Server platform team is responsible for architecting, designing, and building the best server and storage system to meet the requirements of high-performance, low cost and easy to operate. By joining this team, you will work with the best engineers and talents in this industry and have a broad opportunity to get in touch with the latest AI application syst
Posted 60+ days ago | Updated 8 hours ago

Senior Backend Software Engineer, Global E-commerce Governance Platform

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : W8362 Apply to this job Share this listing: Responsibilities Global e-commerce is a content e-commerce business with international short video product as the carrier. It is committed to becoming the first choice for users to discover and purchase good products with affordable prices. Global e-commerce business team hopes to provide users with more tailored and efficient consumption experience, enabling merchants to receive stable an
Posted 60+ days ago | Updated 8 hours ago

System Architect - Cloud Hardware

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : P3909 Apply to this job Share this listing: Responsibilities Server platform team is responsible for architecting, designing and building best server and storage system to meet the requirements of high-performance, low cost and easy to operate. By joining this team, you will work with the best engineers and talents in this industry and have a broad opportunity to get in touch with the latest AI application system and newly emerged t
Posted 60+ days ago | Updated 8 hours ago

Senior Machine Learning Engineer, TikTok Ads Creative & Ecosystem

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : B1101 Apply to this job Share this listing: Responsibilities A "creative" is the ad (in the form of a short-form video) served to TikTok users, composed of video, background music, call-to-action card, post-click landing page, and other formats that get delivered to users. A quote goes "creativity is the soul of advertising", because a good ad creative is effective, yet difficult to produce, especially at the scale of TikTok adverti
Posted 60+ days ago | Updated 8 hours ago

Tech Lead Software Engineer, TikTok Ads Creative & Ecosystem

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : JDTN1 Apply to this job Share this listing: Responsibilities A "creative" is the ad (in the form of a short-form video) served to TikTok users, composed of video, background music, call-to-action card, post-click landing page, and other formats that get delivered to users. A quote goes "creativity is the soul of advertising", because a good ad creative is effective, yet difficult to produce, especially at the scale of TikTok adverti
Posted 60+ days ago | Updated 8 hours ago

Software Engineer, TikTok Ads Creative & Ecosystem

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : D8548 Apply to this job Share this listing: Responsibilities A "creative" is the ad (in the form of a short-form video) served to TikTok users, composed of video, background music, call-to-action card, post-click landing page, and other formats that get delivered to users. A quote goes "creativity is the soul of advertising", because a good ad creative is effective, yet difficult to produce, especially at the scale of TikTok adverti
Posted 60+ days ago | Updated 8 hours ago

Senior Software Engineer, TikTok Ads Creative & Ecosystem

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : K0125 Apply to this job Share this listing: Responsibilities A "creative" is the ad (in the form of a short-form video) served to TikTok users, composed of video, background music, call-to-action card, post-click landing page, and other formats that get delivered to users. A quote goes "creativity is the soul of advertising", because a good ad creative is effective, yet difficult to produce, especially at the scale of TikTok adverti
Posted 60+ days ago | Updated 8 hours ago

Software Engineer, Ads Measurement & Effectiveness

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : P4325 Apply to this job Share this listing: Responsibilities The Ads Measurement & Effectiveness team at TikTok empowers marketers and brands to understand and optimize the true business value of their ad investments across TikTok's paid channels. Our mission is to provide advertisers with clear, actionable insights through cutting-edge measurement solutions like Brand Lift (BLS), Conversion Lift (CLS), Split Test, Cross-Media Measu
Posted 60+ days ago | Updated 8 hours ago

Machine Learning Engineer - E-commerce Recommendation

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : U4641 Apply to this job Share this listing: Responsibilities 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. We are a group of applied machine learning engineers and data scientists that focus on E-commerce recommendations. We are developing innovative
Posted 60+ days ago | Updated 8 hours ago

Data Science Intern (TikTok-Product-Data Science) - 2025 Summer (PhD)

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Intern Job Code : A107258 Apply to this job Share this listing: Responsibilities Team Introduction: TikTok-Data Science team is responsible for all data science and analytics related work, cooperating with all key value chains in TikTok, including User Growth, P Content Ecosystem, Social, Creation, Product Infrastructure, Research and Science etc. The goal of the team is to generate actionable insights from data and help the stakeholders to make the r
Posted 60+ days ago | Updated 8 hours ago

Distinguished Engineer, Machine Learning - Safety

Roblox

•

San Mateo, California, USA

Full-time

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. At Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.We're on a mission to connect a billion people with op
Posted 60+ days ago | Updated 8 hours ago