AI-native Security Agent Engineer

ByteDance; San Jose (CA); On-site; USD 162,000 - 388,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) matching

Parental leave

Disability insurance

Life insurance

Wellbeing benefits

Paid holidays

Sick leave

Paid personal time

Job summary

ByteDance is seeking a Network Security Engineer to architect and implement security features for cloud-native and edge environments, including WAF, Bot Management, and API Security. The role focuses on AI-native security capabilities, LLM/Agent abuse prevention, and risk detection, with active involvement in AI Agent open-source projects to drive real-world adoption.

The ideal candidate has 3+ years of software security experience and hands-on development of LLM/Agent-based systems, plus strong

Qualifications

• 3+ years of software engineering experience in security, networking, AI, or related domains.
• Proficiency in at least one of Go, Python, or TypeScript, with a track record of building complex, scalable systems.
• Hands-on experience developing LLM/Agent-based systems (e.g., tool/function calling, context management, or related security implementations)
• Strong communication skills and a self-driven mindset, with the ability to deliver results in fast-paced and ambiguous environments.

Responsibilities

• Architect and implement security features and systems for cloud-native and edge environments (including WAF, Bot Management, and API Security)
• Design and build security capabilities for AI-native systems, covering LLM/Agent abuse prevention, risk detection, and behavior analysis
• Deeply engage in AI Agent open-source projects, contributing to core capability evolution and driving real-world adoption through community collaboration

Skills

Security engineering

Go

Python

TypeScript

LLM/Agent development

Communication

Job description

Responsibilities

Team Introduction
The Network Security team is on the mission to build innovative and enterprise-level network security products and solutions, to protect online businesses from being interrupted by cyber attacks. We're a group of people passionate about challenging the status quo to solve the real world's cybersecurity problems effectively and efficiently. We set audacious goals and strive to achieve them. We believe in teamwork and collaboration and we encourage open and succinct communication. If you share the same value and would like to make an impact on network security, please come join us!

Responsibilities

• Architect and implement security features and systems for cloud-native and edge environments (including WAF, Bot Management, and API Security)
• Design and build security capabilities for AI-native systems, covering LLM/Agent abuse prevention, risk detection, and behavior analysis
• Deeply engage in AI Agent open-source projects, contributing to core capability evolution and driving real-world adoption through community collaboration

Qualifications

Minimum Qualifications

• 3+ years of software engineering experience in security, networking, AI, or related domains
• Proficiency in at least one of Go, Python, or TypeScript, with a track record of building complex, scalable systems
• Hands-on experience developing LLM/Agent-based systems (e.g., tool/function calling, context management, or related security implementations)
• Strong communication skills and a self-driven mindset, with the ability to deliver results in fast-paced and ambiguous environments

Preferred Qualifications

• Proven technical contributions to open-source ecosystems (e.g., OpenClaw, Hermes Agent, LLM Guard)
• Practical experience in LLM/AI Security (e.g., Prompt Injection defense, abuse prevention, content safety, or model risk control)

About Us

Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.

Why Join ByteDance

Inspiring creativity is at the core of ByteDance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an \"Always Day 1\" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

Reasonable Accommodation

ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request

Job Information

【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $162000 - $387600 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates:

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems;
3. Exercising sound judgment.