# TikTok - **Answer**: TikTok builds mostly with Python, SQL, C++, Java. Its stack also includes PyTorch, Tableau, TensorFlow, Power BI. Python is named in 733 of the 1,740 job postings TikTok published in the last 12 months (42%). Counted by Alion from the job postings of TikTok, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 1740 - **Open postings**: 1501 - **Technologies in use**: 324 - **Modernity score**: 77 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 47 - **Name**: TikTok - **Domain**: tiktok.com - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 733; Share: 0.4213; Required: 645; Open postings: 646; First seen: 2020-01-29 - **Machine Learning** — Layer: practices; Postings: 551; Share: 0.3167; Required: 473; Open postings: 498; First seen: 2020-07-29 - **SQL** — Layer: languages; Postings: 543; Share: 0.3121; Required: 393; Open postings: 432; First seen: 2020-03-12 - **C++** — Layer: languages; Postings: 412; Share: 0.2368; Required: 399; Open postings: 395; First seen: 2020-01-29 - **LLM** — Layer: ai; Postings: 412; Share: 0.2368; Required: 335; Open postings: 371; First seen: 2020-02-07 - **Java** — Layer: languages; Postings: 315; Share: 0.181; Required: 296; Open postings: 295; First seen: 2020-01-29 - **Multimodal AI** — Layer: practices; Postings: 295; Share: 0.1695; Required: 250; Open postings: 282; First seen: 2022-02-11 - **Recommender Systems** — Layer: practices; Postings: 264; Share: 0.1517; Required: 214; Open postings: 253; First seen: 2020-06-05 - **AI Agents** — Layer: practices; Postings: 249; Share: 0.1431; Required: 209; Open postings: 227; First seen: 2020-02-07 - **PyTorch** — Layer: frameworks; Postings: 226; Share: 0.1299; Required: 205; Open postings: 216; First seen: 2022-03-08 - **NLP** — Layer: practices; Postings: 222; Share: 0.1276; Required: 189; Open postings: 211; First seen: 2022-02-11 - **Microsoft Excel** — Layer: tools; Postings: 211; Share: 0.1213; Required: 191; Open postings: 183; First seen: 2021-12-20 - **Tableau** — Layer: cloud; Postings: 186; Share: 0.1069; Required: 102; Open postings: 142; First seen: 2023-05-24 - **TensorFlow** — Layer: frameworks; Postings: 171; Share: 0.0983; Required: 148; Open postings: 161; First seen: 2022-06-23 - **Go** — Layer: languages; Postings: 160; Share: 0.092; Required: 156; Open postings: 149; First seen: 2020-01-29 - **Power BI** — Layer: cloud; Postings: 142; Share: 0.0816; Required: 68; Open postings: 106; First seen: 2022-07-29 - **Reinforcement Learning** — Layer: practices; Postings: 139; Share: 0.0799; Required: 117; Open postings: 131; First seen: 2022-01-25 - **Post-training** — Layer: practices; Postings: 118; Share: 0.0678; Required: 90; Open postings: 114; First seen: 2022-06-08 - **RAG** — Layer: practices; Postings: 111; Share: 0.0638; Required: 59; Open postings: 100; First seen: 2022-06-08 - **Flink** — Layer: frameworks; Postings: 108; Share: 0.0621; Required: 59; Open postings: 99; First seen: 2020-06-05 - **TensorFlow C++** — Layer: frameworks; Postings: 95; Share: 0.0546; Required: 83; Open postings: 90; First seen: 2022-06-23 - **Spark** — Layer: cloud; Postings: 95; Share: 0.0546; Required: 58; Open postings: 88; First seen: 2020-02-07 - **A/B Testing** — Layer: practices; Postings: 91; Share: 0.0523; Required: 76; Open postings: 70; First seen: 2021-06-04 - **Function Calling** — Layer: practices; Postings: 87; Share: 0.05; Required: 62; Open postings: 77; First seen: 2024-04-23 - **RLHF** — Layer: practices; Postings: 79; Share: 0.0454; Required: 23; Open postings: 75; First seen: 2022-06-08 - **Fine-tuning** — Layer: practices; Postings: 78; Share: 0.0448; Required: 56; Open postings: 73; First seen: 2022-02-11 - **SFT** — Layer: practices; Postings: 78; Share: 0.0448; Required: 51; Open postings: 78; First seen: 2023-05-11 - **Pre-training** — Layer: practices; Postings: 73; Share: 0.042; Required: 53; Open postings: 72; First seen: 2022-05-19 - **Computer Vision** — Layer: practices; Postings: 70; Share: 0.0402; Required: 59; Open postings: 69; First seen: 2022-02-11 - **JavaScript** — Layer: languages; Postings: 68; Share: 0.0391; Required: 55; Open postings: 58; First seen: 2022-06-02 - **Apache Kafka** — Layer: cloud; Postings: 68; Share: 0.0391; Required: 46; Open postings: 65; First seen: 2020-02-07 - **Prompt Engineering** — Layer: practices; Postings: 65; Share: 0.0374; Required: 41; Open postings: 53; First seen: 2024-01-18 - **Linux** — Layer: cloud; Postings: 64; Share: 0.0368; Required: 56; Open postings: 59; First seen: 2020-06-05 - **Looker** — Layer: cloud; Postings: 62; Share: 0.0356; Required: 30; Open postings: 48; First seen: 2025-02-05 - **Hadoop** — Layer: frameworks; Postings: 57; Share: 0.0328; Required: 36; Open postings: 46; First seen: 2020-06-05 - **DPO** — Layer: practices; Postings: 44; Share: 0.0253; Required: 21; Open postings: 44; First seen: 2026-01-15 - **Model Context Protocol** — Layer: tools; Postings: 42; Share: 0.0241; Required: 31; Open postings: 36; First seen: 2025-11-26 - **Agentic Workflows** — Layer: practices; Postings: 42; Share: 0.0241; Required: 22; Open postings: 39; First seen: 2023-05-11 - **Transformers** — Layer: frameworks; Postings: 40; Share: 0.023; Required: 22; Open postings: 36; First seen: 2025-01-03 - **Knowledge Graph** — Layer: practices; Postings: 39; Share: 0.0224; Required: 34; Open postings: 38; First seen: 2022-06-24 - **Figma** — Layer: cloud; Postings: 39; Share: 0.0224; Required: 30; Open postings: 31; First seen: 2024-05-08 - **TensorRT** — Layer: tools; Postings: 39; Share: 0.0224; Required: 0; Open postings: 38; First seen: 2025-01-03 - **ChatGPT** — Layer: ai; Postings: 38; Share: 0.0218; Required: 35; Open postings: 35; First seen: 2026-02-12 - **Context Engineering** — Layer: practices; Postings: 38; Share: 0.0218; Required: 29; Open postings: 37; First seen: 2020-02-07 - **Claude** — Layer: ai; Postings: 36; Share: 0.0207; Required: 36; Open postings: 35; First seen: 2026-01-07 - **Redis** — Layer: data; Postings: 36; Share: 0.0207; Required: 22; Open postings: 34; First seen: 2020-02-07 - **LangChain** — Layer: frameworks; Postings: 36; Share: 0.0207; Required: 12; Open postings: 35; First seen: 2025-05-20 - **ETL/ELT** — Layer: practices; Postings: 35; Share: 0.0201; Required: 29; Open postings: 25; First seen: 2020-06-05 - **Rust** — Layer: languages; Postings: 33; Share: 0.019; Required: 33; Open postings: 32; First seen: 2024-04-19 - **vLLM** — Layer: cloud; Postings: 33; Share: 0.019; Required: 15; Open postings: 33; First seen: 2025-08-26 - … 274 more in the JSON form ## Changes ### First appeared - **Runway** — First seen: 2026-10-29 - **Explainable AI** — First seen: 2026-10-20 - **Microsoft Entra ID** — First seen: 2026-09-16 - **1C** — First seen: 2026-09-01 - **AgentOps** — First seen: 2026-08-25 - **Computer Use** — First seen: 2026-08-19 - **Zabbix** — First seen: 2026-08-14 - **Parcel** — First seen: 2026-08-13 ### Rising - **SQL** — Share from: 25; Share to: 39 - **Microsoft Excel** — Share from: 7; Share to: 19 - **Power BI** — Share from: 4; Share to: 13 - **Tableau** — Share from: 7; Share to: 15 - **ChatGPT** — Share from: 1; Share to: 5 - **Claude** — Share from: 1; Share to: 5 - **Looker** — Share from: 2; Share to: 5 - **Agentic Workflows** — Share from: 1; Share to: 4 ### Falling - **C++** — Share from: 32; Share to: 15 - **Machine Learning** — Share from: 38; Share to: 24 - **Java** — Share from: 25; Share to: 13 - **Recommender Systems** — Share from: 21; Share to: 9 - **PyTorch** — Share from: 17; Share to: 8 - **NLP** — Share from: 16; Share to: 8 - **TensorFlow** — Share from: 13; Share to: 7 - **RAG** — Share from: 9; Share to: 3 ### Not seen 180d - **GraphRAG** — Last seen: 2026-04-28 - **Image Segmentation** — Last seen: 2026-04-16 - **SystemVerilog** — Last seen: 2026-04-01 - **BERT** — Last seen: 2025-12-19 - **Synopsys Verdi** — Last seen: 2026-04-01 - **UVM** — Last seen: 2026-04-01 - **Synopsys Design Compiler** — Last seen: 2026-04-01 - **Synopsys PrimeTime** — Last seen: 2026-04-01 ## Similar stacks - [ByteDance](https://alion.io/company/bytedance/technologies) — Shared technologies: 294 - [Tencent](https://alion.io/company/tencent/technologies) — Shared technologies: 219 - [Xiaohongshu](https://alion.io/company/xiaohongshu/technologies) — Shared technologies: 181 - [Google](https://alion.io/company/google/technologies) — Shared technologies: 258 - [Meta](https://alion.io/company/meta/technologies) — Shared technologies: 212 - [Huawei Technologies](https://alion.io/company/huawei/technologies) — Shared technologies: 186 - [Alibaba Group](https://alion.io/company/alibaba-group/technologies) — Shared technologies: 251 - [Baidu](https://alion.io/company/baidu/technologies) — Shared technologies: 195 --- [Page](https://alion.io/company/tiktok/technologies) · [JSON](https://alion.io/company/tiktok/technologies.json) Source: Alion (alion.io), 2026-11-12. 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