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TikTok · 2 weeks ago

Software Engineer Graduate (Data Arch - Data Ecosystem ) - 2026 (PhD)

San Jose, CA

Full-time

Onsite

New Grad, Entry Level

$119K/yr - $259K/yr

TikTok is the leading destination for short-form mobile video. The Data Ecosystem Team is seeking a graduate to design and implement data architecture for large-scale recommendation systems, ensuring system reliability and performance while collaborating with machine learning teams.

Content CreatorsContent DiscoveryMedia and EntertainmentSocial MediaVideo

H1B Sponsor Likely

Responsibilities

Design and implement real-time and offline data architecture for large-scale recommendation systems

Build scalable and high-performance streaming Lakehouse systems that power feature pipelines, model training, and real-time inference

Collaborate with ML platform teams to support PyTorch-based model training workflows and design efficient data formats and access patterns for large-scale samples and features

Own core components of our distributed storage and processing stack, from file format to stream compaction to metadata management

Qualification

Distributed systemsApache FlinkLakehouse technologiesJava/Scala/C++Feature storageDebuggingPerformance tuningData versioningHBase/Kudu

Required

PhD or Master's degree in Computer Science or related technical field

Experience building large-scale distributed systems, preferably in storage, stream processing, or ML infrastructure

Solid understanding of Apache Flink internals, with hands-on experience in state management, connectors, or UDFs

Familiarity with modern Lakehouse technologies such as Apache Paimon, Iceberg, Delta Lake, or Hudi, especially around incremental ingestion, schema evolution, and snapshot isolation

Preferred

Experience in designing and optimizing Flink + Paimon architectures for unified batch/stream processing

Familiarity with feature storage and training data pipelines, and their integration with PyTorch, especially for large-scale model training

Knowledge of columnar file formats (Parquet, ORC, Lance) and how they are used in feature engineering or ML data loading

Proficiency in Java/Scala/C++, and strong debugging/performance tuning ability

Previous experience in Lakehouse metadata management, compaction scheduling, or data versioning is a plus

Knowledge of legacy data stores like HBase/Kudu is a bonus but not required

Benefits

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

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

TikTok

Glassdoor3.4

TikTok is a short-form video entertainment app and social network platform. It is a sub-organization of ByteDance.

Founded in 2003

Los Angeles, California, USA

10001+ employees

https://www.tiktok.com

H1B Sponsorship

TikTok 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 (979)

2024 (601)

2023 (387)

2022 (322)

2021 (133)

2020 (72)