Software Engineer (Security Engineering) - 2025 Start

at  ByteDance

About the Company
Founded in 2012, ByteDance’s mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Helo, and Resso, 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 Us
Creation is the core of ByteDance’s purpose. Our products are built to help imaginations thrive. This is doubly true of the teams that make our innovations possible.
Together, we inspire creativity and enrich life - a mission we aim towards achieving every day.
To us, every challenge, no matter how ambiguous, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.
At ByteDance, we create together and grow together. That’s how we drive impact - for ourselves, our company, and the users we serve.
Join us.
Team Introduction
The security engineering team at ByteDance is missioned to build infrastructures, platforms and technologies, as well as to support cross-functional teams to protect our users, products and infrastructures. In this team you’ll have a unique opportunity to have first-hand exposure to the strategy of the company in key security initiatives, especially in building scalable and secure-by-design systems and solutions. Our challenges are not your regular day-to-day technical problems; you’ll be part of a team that’s developing new solutions to new challenges of a kind not previously addressed by big tech. It’s working fast, at scale, and we’re making a difference.
We are looking for talented individuals to join us in 2025. As a graduate, you will get unparalleled opportunities for you to kickstart your career, pursue bold ideas and explore limitless growth opportunities. Co-create a future driven by your inspiration with ByteDance
Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to ByteDance and its affiliates’ jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Job Responsibilities

• Research, design, develop, test, maintain and continuously improve ByteDance’s product security & privacy infrastructure and software.
• 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.
• Deploy, troubleshot and operate large distributed systems.
• Bring insight into all aspects of modern security issues to our products and rapidly developing prototypes for mitigations.
• Collaborate with cross-functional research teams and engineering teams in developing products and services for delivering security assurance.
• Manage individual project priorities, deadlines and deliverables

Minimum Qualifications

• Final year or recent graduate with a background in Computer Science, Computer Engineering, Electrical Engineering or other relevant majors
• Excellent programming, debugging, and optimization skills in one or more general purpose programming languages
• Solid security background with good understanding of at least two security domains, such as data security, application security, cryptography, systems security, and network security
• Creative problem-solving skills and excellent troubleshooting and debugging skills.
• Strong written/verbal communication and excellent teamwork skills; flexible and be a self-starter.

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.
• Familiarity with at least one server library / RPC 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

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.
By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy.
If you have any questions, please reach out to us at apac-earlycareers@bytedance.co

• Research, design, develop, test, maintain and continuously improve ByteDance’s product security & privacy infrastructure and software.
• 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.
• Deploy, troubleshot and operate large distributed systems.
• Bring insight into all aspects of modern security issues to our products and rapidly developing prototypes for mitigations.
• Collaborate with cross-functional research teams and engineering teams in developing products and services for delivering security assurance.
• Manage individual project priorities, deadlines and deliverable