# YouTube - **Answer**: YouTube builds mostly with C++, Python, SQL, JavaScript. Its stack also includes TensorFlow, GCP, Looker, JAX. C++ is named in 66 of the 206 job postings YouTube published in the last 12 months (32%). Counted by Alion from the job postings of YouTube, updated Nov 11, 2026. - **Window days**: 365 - **Postings analysed**: 206 - **Open postings**: 85 - **Technologies in use**: 101 - **Modernity score**: 81 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 12362 - **Name**: YouTube - **Domain**: youtube.com - **Url**: ## Technologies - **Machine Learning** — Layer: practices; Postings: 76; Share: 0.3689; Required: 58; Open postings: 31; First seen: 2026-08-11 - **C++** — Layer: languages; Postings: 66; Share: 0.3204; Required: 65; Open postings: 26; First seen: 2025-09-24 - **Python** — Layer: languages; Postings: 65; Share: 0.3155; Required: 56; Open postings: 30; First seen: 2025-09-24 - **SQL** — Layer: languages; Postings: 56; Share: 0.2718; Required: 32; Open postings: 22; First seen: 2026-08-19 - **LLM** — Layer: ai; Postings: 43; Share: 0.2087; Required: 32; Open postings: 18; First seen: 2026-08-12 - **Gemini** — Layer: ai; Postings: 38; Share: 0.1845; Required: 35; Open postings: 14; First seen: 2026-09-14 - **JavaScript** — Layer: languages; Postings: 38; Share: 0.1845; Required: 35; Open postings: 18; First seen: 2026-01-30 - **Recommender Systems** — Layer: practices; Postings: 27; Share: 0.1311; Required: 19; Open postings: 12; First seen: 2025-09-24 - **AI Agents** — Layer: practices; Postings: 20; Share: 0.0971; Required: 16; Open postings: 13; First seen: 2026-08-28 - **TypeScript** — Layer: languages; Postings: 19; Share: 0.0922; Required: 18; Open postings: 8; First seen: 2026-08-27 - **Reinforcement Learning** — Layer: practices; Postings: 15; Share: 0.0728; Required: 12; Open postings: 4; First seen: 2026-08-11 - **Java** — Layer: languages; Postings: 14; Share: 0.068; Required: 14; Open postings: 6; First seen: 2026-05-19 - **Fine-tuning** — Layer: practices; Postings: 13; Share: 0.0631; Required: 13; Open postings: 5; First seen: 2025-10-22 - **TensorFlow** — Layer: frameworks; Postings: 12; Share: 0.0583; Required: 3; Open postings: 2; First seen: 2026-08-21 - **Synopsys PrimeTime** — Layer: tools; Postings: 10; Share: 0.0485; Required: 10; Open postings: 4; First seen: 2026-08-31 - **A/B Testing** — Layer: practices; Postings: 10; Share: 0.0485; Required: 6; Open postings: 2; First seen: 2026-08-31 - **Multimodal AI** — Layer: practices; Postings: 10; Share: 0.0485; Required: 6; Open postings: 3; First seen: 2026-08-20 - **GCP** — Layer: cloud; Postings: 9; Share: 0.0437; Required: 3; Open postings: 5; First seen: 2026-09-03 - **Agentic Workflows** — Layer: practices; Postings: 8; Share: 0.0388; Required: 5; Open postings: 3; First seen: 2026-08-28 - **Looker** — Layer: cloud; Postings: 8; Share: 0.0388; Required: 3; Open postings: 1; First seen: 2026-09-17 - **Go** — Layer: languages; Postings: 7; Share: 0.034; Required: 7; Open postings: 3; First seen: 2026-08-27 - **Knowledge Distillation** — Layer: practices; Postings: 7; Share: 0.034; Required: 7; Open postings: 2; First seen: 2026-08-11 - **Model Distillation** — Layer: practices; Postings: 7; Share: 0.034; Required: 7; Open postings: 2; First seen: 2026-08-11 - **TPU** — Layer: tools; Postings: 7; Share: 0.034; Required: 7; Open postings: 3; First seen: 2026-09-23 - **Figma** — Layer: cloud; Postings: 6; Share: 0.0291; Required: 5; Open postings: 3; First seen: 2026-09-11 - **Tableau** — Layer: cloud; Postings: 6; Share: 0.0291; Required: 4; Open postings: 1; First seen: 2026-09-16 - **JAX** — Layer: frameworks; Postings: 6; Share: 0.0291; Required: 2; Open postings: 0; First seen: 2026-08-21 - **TensorFlow C++** — Layer: frameworks; Postings: 6; Share: 0.0291; Required: 2; Open postings: 1; First seen: 2026-08-31 - **RAG** — Layer: practices; Postings: 5; Share: 0.0243; Required: 3; Open postings: 4; First seen: 2026-09-11 - **CI/CD** — Layer: practices; Postings: 5; Share: 0.0243; Required: 1; Open postings: 5; First seen: 2026-09-29 - **Google BigQuery** — Layer: data; Postings: 5; Share: 0.0243; Required: 1; Open postings: 3; First seen: 2026-09-17 - **Embeddings** — Layer: practices; Postings: 5; Share: 0.0243; Required: 0; Open postings: 3; First seen: 2026-09-16 - **Kotlin** — Layer: languages; Postings: 4; Share: 0.0194; Required: 4; Open postings: 1; First seen: 2026-05-19 - **Room** — Layer: frameworks; Postings: 4; Share: 0.0194; Required: 4; Open postings: 2; First seen: 2026-09-23 - **Computer Vision** — Layer: practices; Postings: 4; Share: 0.0194; Required: 3; Open postings: 1; First seen: 2026-08-20 - **Human-in-the-Loop** — Layer: practices; Postings: 4; Share: 0.0194; Required: 3; Open postings: 1; First seen: 2026-09-21 - **LLM Guardrails** — Layer: practices; Postings: 4; Share: 0.0194; Required: 2; Open postings: 1; First seen: 2026-09-11 - **Model Context Protocol** — Layer: tools; Postings: 4; Share: 0.0194; Required: 2; Open postings: 2; First seen: 2026-09-11 - **Spark** — Layer: cloud; Postings: 4; Share: 0.0194; Required: 2; Open postings: 1; First seen: 2026-08-31 - **ETL/ELT** — Layer: practices; Postings: 3; Share: 0.0146; Required: 3; Open postings: 1; First seen: 2026-08-19 - **Multi-Agent Systems** — Layer: practices; Postings: 3; Share: 0.0146; Required: 3; Open postings: 2; First seen: 2026-09-11 - **Objective-C** — Layer: languages; Postings: 3; Share: 0.0146; Required: 3; Open postings: 1; First seen: 2026-05-29 - **Power BI** — Layer: cloud; Postings: 3; Share: 0.0146; Required: 3; Open postings: 1; First seen: 2026-10-05 - **Swift** — Layer: languages; Postings: 3; Share: 0.0146; Required: 3; Open postings: 1; First seen: 2026-05-29 - **Angular** — Layer: frameworks; Postings: 3; Share: 0.0146; Required: 2; Open postings: 2; First seen: 2026-09-09 - **Hadoop** — Layer: frameworks; Postings: 3; Share: 0.0146; Required: 2; Open postings: 0; First seen: 2026-08-31 - **PyTorch** — Layer: frameworks; Postings: 3; Share: 0.0146; Required: 2; Open postings: 1; First seen: 2026-09-23 - **React.js** — Layer: frameworks; Postings: 3; Share: 0.0146; Required: 2; Open postings: 2; First seen: 2026-09-09 - **AIOps** — Layer: practices; Postings: 2; Share: 0.0097; Required: 2; Open postings: 1; First seen: 2026-08-28 - **Apex** — Layer: languages; Postings: 2; Share: 0.0097; Required: 2; Open postings: 2; First seen: 2026-10-14 - … 51 more in the JSON form ## Changes ### First appeared - **Prompt Engineering** — First seen: 2026-10-29 - **Vertex AI** — First seen: 2026-10-20 - **Apex** — First seen: 2026-10-14 - **Lightning Web Components** — First seen: 2026-10-14 - **Power BI** — First seen: 2026-10-05 - **CI/CD** — First seen: 2026-09-29 - **Apache Kafka** — First seen: 2026-09-29 - **gRPC** — First seen: 2026-09-29 ## Similar stacks - [Google DeepMind](https://alion.io/company/deepmind/technologies) — Shared technologies: 59 - [Expedia Group](https://alion.io/company/expedia/technologies) — Shared technologies: 60 - [Airbnb](https://alion.io/company/airbnb/technologies) — Shared technologies: 62 - [Expedia Group](https://alion.io/company/expediagroup-com/technologies) — Shared technologies: 67 - [Snap](https://alion.io/company/snap/technologies) — Shared technologies: 63 - [Equifax](https://alion.io/company/equifax/technologies) — Shared technologies: 60 - [Meta](https://alion.io/company/meta/technologies) — Shared technologies: 80 - [Waymo](https://alion.io/company/waymo/technologies) — Shared technologies: 62 --- [Page](https://alion.io/company/youtube/technologies) · [JSON](https://alion.io/company/youtube/technologies.json) Source: Alion (alion.io), 2026-11-11. 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