ByteDance · 4 days ago
Senior Software Engineer - AI for Security, Data/Application
San Jose, CA
Full-time
Onsite
Senior Level
$137K/yr - $360K/yrByteDance is a global technology company known for its innovative products, including TikTok. The Senior Software Engineer will be responsible for building AI security datasets, exploring model performance in security contexts, and developing evaluation standards for security data, ultimately enhancing the security of ByteDance's products and infrastructures.
ContentData MiningInternetSocial Media
Responsibilities
Build and refine AI security datasets: Design and develop comprehensive, in-depth, and challenging datasets for AI-for-Security across different security scenarios
Explore model consistency and performance prediction in security contexts: Conduct deep research on LLM performance during training on security tasks and assess the performance limits of models in security applications
Develop security data and evaluation standards from an interpretability perspective: Propose interpretability-based standards grounded in model mechanisms to assess transparency and reliability of LLMs in security decision-making and remediation
Red Teaming and model optimization: Perform Red Teaming from an evaluation perspective to systematically identify weaknesses of LLMs in security contexts and propose targeted optimization strategies
Build RAG evaluation systems: Design end-to-end evaluation metrics and benchmarks for security-specific RAG systems, create automated evaluation workflows, and develop interpretability and traceability tools for RAG systems
Qualification
Required
Strong coding and algorithm foundation: Excellent programming skills, strong knowledge of data structures and algorithms, proficiency in at least one mainstream programming language (e.g., Python, Java, C++)
Familiarity with AI-related tech stack: Solid understanding of NLP, CV, ML technologies, with in-depth knowledge of LLM-related stacks (e.g., Reward Model, GRPO/PPO/DPO, SFT/RFT, CT, PE)
Excellent problem-solving skills: Strong analytical and problem-solving capabilities with the ability to independently explore innovative solutions
Strong communication and collaboration skills: Ability to work closely with team members, explore new technologies collaboratively, and drive technological advancements
Preferred
Published research papers in top conferences/journals in CV/NLP/Security domain
Experience with security-related models (e.g., vulnerability detection models, malicious code analysis models) is a plus
Leading impactful projects or publishing significant papers in the LLM or AI security domain is preferred
Benefits
Medical, dental, and vision insurance
401(k) savings plan with company match
Paid parental leave
Short-term and long-term disability coverage
Life insurance
Wellbeing benefits
10 paid holidays per year
10 paid sick days per year
17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure)
Company
ByteDance
ByteDance is a technology company that develops content creation platforms and services.
Founded in 2012
10001+ employees
H1B Sponsorship
ByteDance has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1350)
2024 (1123)
2023 (775)
2022 (487)
2021 (417)
2020 (245)
Funding
Current Stage
Late StageTotal Funding
$9.8BKey Investors
Capital TodayG42Tiger Global Management
2025-11-20Secondary Market· $300M
2024-07-25Secondary Market
2023-03-14Secondary Market· $100M
Leadership Team
Jochen Bischoff
Head of Global Business Solutions - Africa
Matty Lin
General Manager, Global Business Solutions, KR
Recent News
2026-01-07
South China Morning Post
2026-01-07
Company data provided by crunchbase