Responsibilities
About the Team
As part of the Security Engineering team, we are responsible for supporting the company's construction of security capabilities and platform services, combining other teams to create efficient and high-quality service docking capabilities, enhancing interactive experience, and lowering the user's barriers to understanding and using security services.

Responsibilities
We are looking for Security Software Engineers to join our Security Engineering team in building the next-generation of ByteDance's product security & privacy infrastructure that furthers our system security and user data privacy protection level, which will impact all ByteDance's products globally. In addition, you will also have opportunities to work closely with product teams across the world. Together we will identify opportunities, define innovative ways to build our users a safe and trustworthy environment, and help us shape the future of ByteDance.

- Research, design, develop, test, maintain and continuously improve ByteDance's product security & privacy Infrastructure and softwares.
- Analyse user needs and security & privacy objectives, develop software solutions, applying principles and techniques of computer science, engineering, and mathematical analysis.
- Update Software, enhances existing software capabilities. Develop and direct software testing and validation procedures to optimize reliability, availability and performance of globally distributed systems.
- Work with multiple cross-functional global teams to integrate hardware and software systems and develop specifications and performance requirements, to deliver high-quality work in rapid product development.
- Deploy, troubleshot and operate large distributed systems.
- Manage individual project priorities, deadlines and deliverables

Qualifications
Minimum Qualifications
- Bachelor's degree and or above in Computer Science, Computer Engineering or other relevant majors.
- Strong knowledge of data structures and algorithms
- Proficiency in at least one server library / framework like Express, Koa, Gin, Kite, Django, etc and at least one kind of database like MySQL, Redis, MongoDB, Hive, ClickHouse, ES, etc and at least one kind of message queue like Kafka, RocketMQ, etc
- Understanding of load-balance, container virtualization, familiarity with NGINX, Docker, K8s, Serverless, etc
- Proficiency in TypeScript, CSS and various layouts, at least one kind of general purpose programming language like Node.js etc
- Understanding of component-based development ideas, familiarity with React.js, Vue.js, or any other equivalent library / framework
- Excellent programming, debugging, and optimization skills in general purpose programming languages

Preferred Qualifications
- Experience in cloud-native security services and infrastructure such as Key Management System (KMS), or Public Key Infrastructure (PKI) to serve as a foundation for production infrastructure security. Experience in securing software supply chains to ensure source and build integrity at any stage of the software lifecycle.
- Experience with two or more general purpose programming languages including but not limited to: Go, Node.js, Java, or Python. Preferred familiarity in Rust.

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.

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