Fullstack Software Engineer, Authorization
Listed on 2026-02-21
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Software Development
Backend Developer, Full Stack Developer, Software Engineer, Cloud Engineer - Software
Fullstack Software Engineer, Authorization
Location:
San Jose
Team:
Technology
Employment Type:
Regular
Job Code: A158468
ResponsibilitiesAbout the Team Welcome to the Authorization Services Team! We are the backbone of the company's security infrastructure, responsible for providing cutting-edge authorization services that are integral to nearly every employee and microservice within our organization.
The Authorization (AuthZ) team builds and operates Kani, Byte Dance’s largest authorization system, serving all product lines. Our mission is to provide a unified permission management platform that empowers engineering teams with robust, easy-to-use, and secure access control capabilities.
We focus on delivering a comprehensive solution that includes a flexible approval flow engine, a powerful developer platform. Kani supports all the common Access Control models:
Role-Based Access Control (RBAC) and Policy-Based Access Control(PBAC) and advanced Attribute-Based Access Control (ABAC) models. By continuously improving user experience (UX) and strengthening our compliance and governance features, we ensure that security is seamless and efficient on a global scale. Join us to tackle challenges in a large-scale, unified authorization environment.
As a Fullstack Engineer, you will contribute to the entire feature lifecycle, from conception to deployment. Your responsibilities will include:
- Developing and maintaining features for our Web Console, BFF (Backend for Frontend), and backend services.
- Building and optimizing approval flow features to meet diverse business needs.
- Enhancing the user experience of our Lark bot notifications for approvals and alerts.
- Supporting internal teams with permission model integration and data migration.
- Implementing features to detect and warn against compliance risks.
- Improving the performance, reliability, and scalability of our systems.
- Writing high-quality, well-tested code and participating in code reviews.
- Collaborating with product managers, designers, and other engineers to deliver impactful solutions.
- Contributing to technical documentation to support our developer community.
Minimum Qualifications
- Bachelor's degree in Computer Science or a related field.
- Solid understanding of at least one backend programming language (e.g., Go, Java, Python).
- Experience with at least one modern frontend framework (e.g., React, Vue) and Type Script.
- Basic knowledge of web architecture, microservices, and database technologies (SQL or No
SQL). - A strong sense of code quality, with an appreciation for writing clean, testable code.
- A foundational understanding of authorization concepts, such as RBAC or PBAC.
- Experience with BFF (Backend for Frontend) patterns.
- Contributions to open-source projects or a portfolio of personal projects.
The base salary range for this position in the selected city is $118657 - $259200 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) CandidatesFounded in 2012, Byte Dance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including Tik Tok, Lemon8, Cap Cut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, Byte Dance has made it easier and more fun for people to connect with, consume, and create content.
WhyJoin Byte Dance
Inspiring creativity is at the core of Byte Dance'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 Byte DancersBy constantly…
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