What are the responsibilities and job description for the Senior Software Engineer, Cross Platform Applications position at ByteDance?
Responsibilities
About the Team
The Cross-Platform team at ByteDance is responsible for developing a high-performance rendering engine and a versatile application framework used across a wide range of products. These systems enable efficient, consistent, and high-quality UI development at scale.
We are expanding our mission to improve developer experience and efficiency by building intelligent development tools. These tools will assist engineers working on complex cross-platform systems—streamlining workflows, surfacing insights, and reducing development friction through the integration of AI and automation.
We are seeking an experienced AI Developer to join our team in building the next generation of internal development tools. Your work will focus on integrating AI and machine learning into our toolchain to accelerate software development, improve code quality, and simplify engineering workflows.
You will work closely with front-end and framework engineers to understand their workflows and build intelligent assistants, static/dynamic analyzers, and smart automation features that meaningfully improve their day-to-day productivity.
Responsibilities
- Design and implement AI-powered developer tools that enhance productivity, reduce friction, and improve code quality.
- Integrate intelligent systems into existing toolchains and frameworks, supporting tasks such as code generation, diagnostics, refactoring, and performance tuning.
- Collaborate with engineers across rendering and framework domains to understand pain points and translate them into practical, AI-enhanced solutions.
- Build and maintain infrastructure for model integration, code analysis, and in-editor assistance.
- Track emerging trends in AI-assisted development and propose new tools and features that push the boundaries of developer experience.
Qualifications
Minimum Qualifications
- Bachelor’s degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience.
- Strong programming skills in JavaScript/TypeScript and at least one systems-level language (e.g., C , Rust, Go).
- Solid understanding of frontend or cross-platform application development.
- Familiarity with machine learning techniques, natural language processing, or LLM applications in software tooling.
Preferred Qualifications
- Master’s or Ph.D. in Computer Science, Machine Learning, or a related field.
- Experience applying AI/ML models to code-related tasks such as generation, summarization, linting, or analysis.
- Contributions to developer tooling projects (internal or open-source), especially those focused on enhancing code understanding or workflow automation.
- Knowledge of rendering pipelines or cross-platform framework architecture is a plus.
- Experience deploying and optimizing ML models in real-world applications.
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 $177688 - $341734 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; and
3. Exercising sound judgment.
About the Team
The Cross-Platform team at ByteDance is responsible for developing a high-performance rendering engine and a versatile application framework used across a wide range of products. These systems enable efficient, consistent, and high-quality UI development at scale.
We are expanding our mission to improve developer experience and efficiency by building intelligent development tools. These tools will assist engineers working on complex cross-platform systems—streamlining workflows, surfacing insights, and reducing development friction through the integration of AI and automation.
We are seeking an experienced AI Developer to join our team in building the next generation of internal development tools. Your work will focus on integrating AI and machine learning into our toolchain to accelerate software development, improve code quality, and simplify engineering workflows.
You will work closely with front-end and framework engineers to understand their workflows and build intelligent assistants, static/dynamic analyzers, and smart automation features that meaningfully improve their day-to-day productivity.
Responsibilities
- Design and implement AI-powered developer tools that enhance productivity, reduce friction, and improve code quality.
- Integrate intelligent systems into existing toolchains and frameworks, supporting tasks such as code generation, diagnostics, refactoring, and performance tuning.
- Collaborate with engineers across rendering and framework domains to understand pain points and translate them into practical, AI-enhanced solutions.
- Build and maintain infrastructure for model integration, code analysis, and in-editor assistance.
- Track emerging trends in AI-assisted development and propose new tools and features that push the boundaries of developer experience.
Qualifications
Minimum Qualifications
- Bachelor’s degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience.
- Strong programming skills in JavaScript/TypeScript and at least one systems-level language (e.g., C , Rust, Go).
- Solid understanding of frontend or cross-platform application development.
- Familiarity with machine learning techniques, natural language processing, or LLM applications in software tooling.
Preferred Qualifications
- Master’s or Ph.D. in Computer Science, Machine Learning, or a related field.
- Experience applying AI/ML models to code-related tasks such as generation, summarization, linting, or analysis.
- Contributions to developer tooling projects (internal or open-source), especially those focused on enhancing code understanding or workflow automation.
- Knowledge of rendering pipelines or cross-platform framework architecture is a plus.
- Experience deploying and optimizing ML models in real-world applications.
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 $177688 - $341734 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; and
3. Exercising sound judgment.
Salary : $177,688 - $341,734
