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# Senior Software Engineer, Cross Platform Applications

- **Company:** BYTEDANCE INC.
- **Location:** San Jose, CA, United States
- **Experience:** Expert
- **Salary:** $218,400
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Application Frameworks, C++ (Programming Language), Static Program Analysis, Code Generation, Software Quality, Computer Programming, Programming Tools, Design of User Interfaces, Machine Learning, Natural Language Processing, Open Source Technology, Performance Tuning, Software Engineering, TypeScript, Large Language Models, Rendering Engine, Information Technology, Front End Software Development, Code Restructuring
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25304_916ff23f5ec404537ea7d095d19c7618

## About the Role

* 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.

## Description

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., 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., * 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.