# Nielsen - **Answer**: Nielsen builds mostly with Python, SQL, Java, JavaScript. Its stack also includes AWS, Azure, PostgreSQL, Cassandra. AWS is named in 76 of the 172 job postings Nielsen published in the last 12 months (44%). Counted by Alion from the job postings of Nielsen, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 172 - **Open postings**: 39 - **Technologies in use**: 222 - **Modernity score**: 83 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 837 - **Name**: Nielsen - **Domain**: nielsen.com - **Url**: ## Technologies - **AWS** — Layer: cloud; Postings: 76; Share: 0.4419; Required: 57; Open postings: 13; First seen: 2026-02-02 - **Python** — Layer: languages; Postings: 74; Share: 0.4302; Required: 69; Open postings: 14; First seen: 2026-02-20 - **SQL** — Layer: languages; Postings: 71; Share: 0.4128; Required: 62; Open postings: 15; First seen: 2026-02-02 - **CI/CD** — Layer: practices; Postings: 44; Share: 0.2558; Required: 34; Open postings: 6; First seen: 2026-02-02 - **Azure** — Layer: cloud; Postings: 40; Share: 0.2326; Required: 28; Open postings: 7; First seen: 2026-02-19 - **Machine Learning** — Layer: practices; Postings: 39; Share: 0.2267; Required: 31; Open postings: 5; First seen: 2026-02-20 - **Spark** — Layer: cloud; Postings: 36; Share: 0.2093; Required: 26; Open postings: 4; First seen: 2026-02-20 - **GCP** — Layer: cloud; Postings: 30; Share: 0.1744; Required: 18; Open postings: 6; First seen: 2026-02-19 - **Java** — Layer: languages; Postings: 25; Share: 0.1453; Required: 23; Open postings: 4; First seen: 2026-06-23 - **Kubernetes** — Layer: cloud; Postings: 25; Share: 0.1453; Required: 18; Open postings: 2; First seen: 2026-07-02 - **JavaScript** — Layer: languages; Postings: 23; Share: 0.1337; Required: 17; Open postings: 5; First seen: 2026-05-28 - **Tableau** — Layer: cloud; Postings: 22; Share: 0.1279; Required: 20; Open postings: 4; First seen: 2026-02-20 - **AI Agents** — Layer: practices; Postings: 19; Share: 0.1105; Required: 17; Open postings: 2; First seen: 2026-02-20 - **LLM** — Layer: ai; Postings: 19; Share: 0.1105; Required: 16; Open postings: 5; First seen: 2026-02-20 - **Docker** — Layer: tools; Postings: 19; Share: 0.1105; Required: 13; Open postings: 2; First seen: 2026-07-02 - **Windows** — Layer: cloud; Postings: 16; Share: 0.093; Required: 16; Open postings: 2; First seen: 2026-02-02 - **Databricks** — Layer: cloud; Postings: 16; Share: 0.093; Required: 14; Open postings: 4; First seen: 2026-07-08 - **Apache Kafka** — Layer: cloud; Postings: 16; Share: 0.093; Required: 12; Open postings: 3; First seen: 2026-07-02 - **ETL/ELT** — Layer: practices; Postings: 15; Share: 0.0872; Required: 15; Open postings: 1; First seen: 2026-07-08 - **PostgreSQL** — Layer: data; Postings: 14; Share: 0.0814; Required: 14; Open postings: 3; First seen: 2026-07-10 - **Power BI** — Layer: cloud; Postings: 13; Share: 0.0756; Required: 12; Open postings: 3; First seen: 2026-02-20 - **Rest API** — Layer: tools; Postings: 13; Share: 0.0756; Required: 12; Open postings: 5; First seen: 2026-07-30 - **Cassandra** — Layer: data; Postings: 13; Share: 0.0756; Required: 9; Open postings: 3; First seen: 2026-07-02 - **Microsoft Excel** — Layer: tools; Postings: 12; Share: 0.0698; Required: 12; Open postings: 5; First seen: 2026-06-17 - **Git** — Layer: tools; Postings: 12; Share: 0.0698; Required: 11; Open postings: 2; First seen: 2026-07-02 - **Model Context Protocol** — Layer: tools; Postings: 12; Share: 0.0698; Required: 8; Open postings: 4; First seen: 2026-08-05 - **GitLab** — Layer: cloud; Postings: 11; Share: 0.064; Required: 11; Open postings: 0; First seen: 2026-07-15 - **Amazon S3** — Layer: cloud; Postings: 11; Share: 0.064; Required: 10; Open postings: 3; First seen: 2026-07-08 - **Delta Lake** — Layer: data; Postings: 11; Share: 0.064; Required: 8; Open postings: 0; First seen: 2026-07-17 - **Platform Engineering** — Layer: practices; Postings: 10; Share: 0.0581; Required: 10; Open postings: 0; First seen: 2026-08-17 - **PyTorch** — Layer: frameworks; Postings: 10; Share: 0.0581; Required: 8; Open postings: 1; First seen: 2026-02-20 - **TensorFlow** — Layer: frameworks; Postings: 10; Share: 0.0581; Required: 8; Open postings: 1; First seen: 2026-02-20 - **FinOps** — Layer: practices; Postings: 9; Share: 0.0523; Required: 9; Open postings: 0; First seen: 2026-08-11 - **LangChain** — Layer: frameworks; Postings: 9; Share: 0.0523; Required: 9; Open postings: 0; First seen: 2026-07-15 - **MySQL** — Layer: data; Postings: 9; Share: 0.0523; Required: 9; Open postings: 0; First seen: 2026-07-10 - **pySpark** — Layer: tools; Postings: 9; Share: 0.0523; Required: 9; Open postings: 1; First seen: 2026-07-23 - **A/B Testing** — Layer: practices; Postings: 9; Share: 0.0523; Required: 8; Open postings: 1; First seen: 2026-05-28 - **Multimodal AI** — Layer: practices; Postings: 9; Share: 0.0523; Required: 8; Open postings: 1; First seen: 2026-07-22 - **Terraform** — Layer: tools; Postings: 9; Share: 0.0523; Required: 8; Open postings: 1; First seen: 2026-07-15 - **DynamoDB** — Layer: data; Postings: 9; Share: 0.0523; Required: 7; Open postings: 2; First seen: 2026-07-10 - **Redis** — Layer: data; Postings: 9; Share: 0.0523; Required: 5; Open postings: 3; First seen: 2026-07-10 - **Prompt Engineering** — Layer: practices; Postings: 9; Share: 0.0523; Required: 4; Open postings: 1; First seen: 2026-02-20 - **Linux** — Layer: cloud; Postings: 8; Share: 0.0465; Required: 8; Open postings: 0; First seen: 2026-07-02 - **Node JS** — Layer: languages; Postings: 8; Share: 0.0465; Required: 8; Open postings: 2; First seen: 2026-05-28 - **SciPy** — Layer: frameworks; Postings: 8; Share: 0.0465; Required: 8; Open postings: 2; First seen: 2026-07-08 - **Scikit-learn** — Layer: frameworks; Postings: 8; Share: 0.0465; Required: 8; Open postings: 1; First seen: 2026-07-08 - **NumPy** — Layer: frameworks; Postings: 8; Share: 0.0465; Required: 7; Open postings: 2; First seen: 2026-07-08 - **Scala** — Layer: languages; Postings: 8; Share: 0.0465; Required: 7; Open postings: 1; First seen: 2026-02-20 - **AWS Lambda** — Layer: cloud; Postings: 8; Share: 0.0465; Required: 6; Open postings: 2; First seen: 2026-06-23 - **C++** — Layer: languages; Postings: 8; Share: 0.0465; Required: 6; Open postings: 1; First seen: 2026-02-02 - … 172 more in the JSON form ## Changes ### First appeared - **Amazon Aurora** — First seen: 2026-10-19 - **Embeddings** — First seen: 2026-09-28 - **Knowledge Graph** — First seen: 2026-09-28 - **Google ADK** — First seen: 2026-09-28 - **LlamaIndex** — First seen: 2026-09-28 - **Vertex AI** — First seen: 2026-09-28 - **dbt** — First seen: 2026-09-24 - **Feature Store** — First seen: 2026-09-24 ### Rising - **Rest API** — Share from: 2; Share to: 11 - **Platform Engineering** — Share from: 0; Share to: 9 - **Tableau** — Share from: 9; Share to: 14 - **Power BI** — Share from: 4; Share to: 9 - **FinOps** — Share from: 2; Share to: 7 - **Gemini** — Share from: 0; Share to: 5 - **Databricks** — Share from: 7; Share to: 11 - **Delta Lake** — Share from: 4; Share to: 8 ### Falling - **Machine Learning** — Share from: 39; Share to: 14 - **Docker** — Share from: 23; Share to: 5 - **Spark** — Share from: 32; Share to: 15 - **Kubernetes** — Share from: 25; Share to: 10 - **JavaScript** — Share from: 23; Share to: 9 - **ETL/ELT** — Share from: 18; Share to: 5 - **Java** — Share from: 23; Share to: 11 - **TensorFlow** — Share from: 13; Share to: 2 ## Similar stacks - [Fractal](https://alion.io/company/fractal-analytics/technologies) — Shared technologies: 169 - [Quantiphi](https://alion.io/company/quantiphi/technologies) — Shared technologies: 184 - [Tiger Analytics](https://alion.io/company/tigeranalytics/technologies) — Shared technologies: 154 - [Snowflake](https://alion.io/company/snowflake/technologies) — Shared technologies: 164 - [Intercontinental Exchange](https://alion.io/company/intercontinental-exchange/technologies) — Shared technologies: 160 - [Sigma Software Group](https://alion.io/company/sigma-software-group/technologies) — Shared technologies: 156 - [TransUnion](https://alion.io/company/transunion/technologies) — Shared technologies: 167 - [Marsh McLennan](https://alion.io/company/marshmclennan/technologies) — Shared technologies: 150 --- [Page](https://alion.io/company/nielsen/technologies) · [JSON](https://alion.io/company/nielsen/technologies.json) Source: Alion (alion.io), 2026-11-12. 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