ByteDance · 23 hours ago
Senior Software Engineer, AI Infrastructure
Seattle, WA
Full-time
Onsite
Senior Level
$178K/yr - $342K/yrByteDance is a global technology company known for its innovative products like TikTok and CapCut. They are seeking a Senior Software Engineer to join their Cross-Platform team, focusing on developing AI-powered tools to enhance developer productivity and streamline workflows.
ContentData MiningFoundational AIInternetSocial Media
Responsibilities
Design and implement AI-powered developer infrastructure that enhances productivity, reduces friction, and improves code quality
Build and refine intelligent systems for knowledge management, including vector databases, retrieval-augmented generation (RAG) pipelines, BM25-based retrieval, and named entity recognition
Develop and integrate coding agent tools (similar to Codex-, Claude-, or Gemini-style assistants) to support tasks such as code generation, diagnostics, refactoring, and performance tuning
Create and maintain evaluation frameworks and benchmarks (e.g., custom test suites like SWE-bench variants) to rigorously assess AI systems on real-world coding tasks
Collaborate with engineers across frameworks and rendering domains to understand pain points and translate them into practical, AI-enhanced solutions
Maintain infrastructure for model integration including code analysis, in-editor assistance, and workflow automation
Track emerging trends in AI-assisted development and propose new tools and features that push the boundaries of developer experience
Qualification
Required
Bachelor's degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience
Strong programming skills in JavaScript/TypeScript, Python and at least one systems-level language (e.g., C++, Rust, Go)
Understanding of frontend or cross-platform application development
Familiarity with machine learning techniques, natural language processing, or large language model (LLM) applications in software tooling
Preferred
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, analysis, or debugging
Contributions to developer tooling projects (internal or open-source), especially those focused on code understanding, retrieval systems, or workflow automation
Knowledge of rendering pipelines or cross-platform framework architecture is a plus
Experience deploying and optimizing ML models in real-world production environments is a plus
Benefits
Medical, dental, and vision insurance
401(k) savings plan with company match
Paid parental leave
Short-term and long-term disability coverage
Life insurance
Wellbeing benefits
10 paid holidays per year
10 paid sick days per year
17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure)
Company
ByteDance
ByteDance is a technology company that develops content creation platforms and services.
Founded in 2012
10001+ employees
H1B Sponsorship
ByteDance has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1350)
2024 (1123)
2023 (775)
2022 (487)
2021 (417)
2020 (245)
Funding
Current Stage
Late StageTotal Funding
$9.8BKey Investors
Capital TodayG42Tiger Global Management
2025-11-20Secondary Market· $300M
2024-07-25Secondary Market
2023-03-14Secondary Market· $100M
Leadership Team
Jochen Bischoff
Head of Global Business Solutions - Africa
Matty Lin
General Manager, Global Business Solutions, KR
Recent News
2026-01-08
Company data provided by crunchbase