# Similarweb - **Answer**: Similarweb builds mostly with Python, SQL, Node JS, JavaScript. Its stack also includes AWS, Spark, LangGraph, LangChain. Python is named in 34 of the 66 job postings Similarweb published in the last 12 months (52%). Counted by Alion from the job postings of Similarweb, updated Nov 13, 2026. - **Window days**: 365 - **Postings analysed**: 66 - **Open postings**: 29 - **Technologies in use**: 97 - **Modernity score**: 89 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 2378 - **Name**: Similarweb - **Domain**: similarweb.com - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 34; Share: 0.5152; Required: 32; Open postings: 12; First seen: 2025-02-12 - **AWS** — Layer: cloud; Postings: 25; Share: 0.3788; Required: 15; Open postings: 11; First seen: 2025-04-27 - **LLM** — Layer: ai; Postings: 24; Share: 0.3636; Required: 20; Open postings: 11; First seen: 2025-12-02 - **SQL** — Layer: languages; Postings: 22; Share: 0.3333; Required: 20; Open postings: 9; First seen: 2025-02-12 - **AI Agents** — Layer: practices; Postings: 19; Share: 0.2879; Required: 19; Open postings: 12; First seen: 2026-01-01 - **CI/CD** — Layer: practices; Postings: 13; Share: 0.197; Required: 13; Open postings: 3; First seen: 2026-05-28 - **Prompt Engineering** — Layer: practices; Postings: 13; Share: 0.197; Required: 12; Open postings: 2; First seen: 2026-01-22 - **Spark** — Layer: cloud; Postings: 13; Share: 0.197; Required: 8; Open postings: 7; First seen: 2025-02-12 - **Databricks** — Layer: cloud; Postings: 13; Share: 0.197; Required: 7; Open postings: 6; First seen: 2025-02-12 - **Kubernetes** — Layer: cloud; Postings: 12; Share: 0.1818; Required: 7; Open postings: 4; First seen: 2026-01-22 - **Claude** — Layer: ai; Postings: 11; Share: 0.1667; Required: 11; Open postings: 2; First seen: 2026-05-05 - **pySpark** — Layer: tools; Postings: 10; Share: 0.1515; Required: 10; Open postings: 5; First seen: 2025-02-12 - **Cursor** — Layer: tools; Postings: 9; Share: 0.1364; Required: 9; Open postings: 3; First seen: 2026-08-24 - **Node JS** — Layer: languages; Postings: 9; Share: 0.1364; Required: 7; Open postings: 3; First seen: 2026-05-18 - **JavaScript** — Layer: languages; Postings: 9; Share: 0.1364; Required: 1; Open postings: 3; First seen: 2025-02-12 - **LangGraph** — Layer: frameworks; Postings: 8; Share: 0.1212; Required: 8; Open postings: 2; First seen: 2026-01-22 - **OpenAI** — Layer: cloud; Postings: 8; Share: 0.1212; Required: 8; Open postings: 5; First seen: 2025-05-30 - **LangChain** — Layer: frameworks; Postings: 8; Share: 0.1212; Required: 6; Open postings: 2; First seen: 2026-01-22 - **React.js** — Layer: frameworks; Postings: 7; Share: 0.1061; Required: 6; Open postings: 2; First seen: 2026-08-14 - **TypeScript** — Layer: languages; Postings: 7; Share: 0.1061; Required: 6; Open postings: 2; First seen: 2026-07-29 - **GCP** — Layer: cloud; Postings: 7; Share: 0.1061; Required: 5; Open postings: 4; First seen: 2026-01-22 - **Docker** — Layer: tools; Postings: 6; Share: 0.0909; Required: 6; Open postings: 4; First seen: 2026-01-22 - **Model Context Protocol** — Layer: tools; Postings: 6; Share: 0.0909; Required: 6; Open postings: 3; First seen: 2026-09-12 - **Machine Learning** — Layer: practices; Postings: 5; Share: 0.0758; Required: 5; Open postings: 3; First seen: 2025-04-27 - **Nest.JS** — Layer: frameworks; Postings: 5; Share: 0.0758; Required: 5; Open postings: 2; First seen: 2026-08-14 - **Rest API** — Layer: tools; Postings: 5; Share: 0.0758; Required: 5; Open postings: 0; First seen: 2026-01-22 - **Terraform** — Layer: tools; Postings: 5; Share: 0.0758; Required: 4; Open postings: 2; First seen: 2026-01-22 - **Snowflake** — Layer: data; Postings: 5; Share: 0.0758; Required: 3; Open postings: 3; First seen: 2026-03-27 - **Agentic Workflows** — Layer: practices; Postings: 4; Share: 0.0606; Required: 4; Open postings: 4; First seen: 2026-05-18 - **Azure** — Layer: cloud; Postings: 4; Share: 0.0606; Required: 4; Open postings: 3; First seen: 2026-01-22 - **ChatGPT** — Layer: ai; Postings: 4; Share: 0.0606; Required: 4; Open postings: 1; First seen: 2026-08-24 - **Copilot** — Layer: tools; Postings: 4; Share: 0.0606; Required: 4; Open postings: 1; First seen: 2026-08-24 - **Figma** — Layer: cloud; Postings: 4; Share: 0.0606; Required: 4; Open postings: 1; First seen: 2026-08-23 - **RAG** — Layer: practices; Postings: 4; Share: 0.0606; Required: 1; Open postings: 1; First seen: 2026-09-12 - **Git** — Layer: tools; Postings: 3; Share: 0.0455; Required: 3; Open postings: 2; First seen: 2026-06-01 - **Hadoop** — Layer: frameworks; Postings: 3; Share: 0.0455; Required: 3; Open postings: 2; First seen: 2026-06-25 - **Java** — Layer: languages; Postings: 3; Share: 0.0455; Required: 3; Open postings: 2; First seen: 2026-05-18 - **Structured Outputs** — Layer: practices; Postings: 3; Share: 0.0455; Required: 3; Open postings: 2; First seen: 2026-09-30 - **Vite** — Layer: tools; Postings: 3; Share: 0.0455; Required: 3; Open postings: 0; First seen: 2026-08-24 - **GitLab** — Layer: cloud; Postings: 3; Share: 0.0455; Required: 1; Open postings: 2; First seen: 2026-09-15 - **LLMOps** — Layer: practices; Postings: 3; Share: 0.0455; Required: 0; Open postings: 0; First seen: 2026-09-12 - **Amazon Redshift** — Layer: data; Postings: 2; Share: 0.0303; Required: 2; Open postings: 1; First seen: 2026-08-20 - **Amazon S3** — Layer: cloud; Postings: 2; Share: 0.0303; Required: 2; Open postings: 1; First seen: 2026-08-20 - **Apache Kafka** — Layer: cloud; Postings: 2; Share: 0.0303; Required: 2; Open postings: 1; First seen: 2026-06-01 - **C#** — Layer: languages; Postings: 2; Share: 0.0303; Required: 2; Open postings: 0; First seen: 2026-05-28 - **Claude Code** — Layer: tools; Postings: 2; Share: 0.0303; Required: 2; Open postings: 2; First seen: 2026-10-19 - **ETL/ELT** — Layer: practices; Postings: 2; Share: 0.0303; Required: 2; Open postings: 1; First seen: 2026-08-20 - **FastAI** — Layer: frameworks; Postings: 2; Share: 0.0303; Required: 2; Open postings: 0; First seen: 2026-04-17 - **Google AI Studio** — Layer: cloud; Postings: 2; Share: 0.0303; Required: 2; Open postings: 0; First seen: 2026-01-22 - **OpenAI Agents SDK** — Layer: frameworks; Postings: 2; Share: 0.0303; Required: 2; Open postings: 0; First seen: 2026-09-12 - … 47 more in the JSON form ## Changes ### First appeared - **Claude Code** — First seen: 2026-10-19 - **Structured Outputs** — First seen: 2026-09-30 - **GitLab** — First seen: 2026-09-15 - **Model Context Protocol** — First seen: 2026-09-12 - **RAG** — First seen: 2026-09-12 - **LLMOps** — First seen: 2026-09-12 - **OpenAI Agents SDK** — First seen: 2026-09-12 - **Cursor** — First seen: 2026-08-24 ### Rising - **LLM** — Share from: 19; Share to: 43 - **Cursor** — Share from: 0; Share to: 24 - **Prompt Engineering** — Share from: 6; Share to: 27 - **AI Agents** — Share from: 19; Share to: 38 - **LangGraph** — Share from: 0; Share to: 19 - **LangChain** — Share from: 0; Share to: 19 - **Claude** — Share from: 6; Share to: 24 - **Model Context Protocol** — Share from: 0; Share to: 16 ### Falling - **GCP** — Share from: 31; Share to: 0 - **AWS** — Share from: 56; Share to: 30 - **Azure** — Share from: 19; Share to: 0 - **Java** — Share from: 19; Share to: 0 - **Kubernetes** — Share from: 31; Share to: 16 - **Docker** — Share from: 19; Share to: 5 ## Similar stacks - [Globe Telecom](https://alion.io/company/globe-telecom/technologies) — Shared technologies: 80 - [Exadel](https://alion.io/company/exadel-3/technologies) — Shared technologies: 82 - [Blend360](https://alion.io/company/blend360/technologies) — Shared technologies: 79 - [Wepoint](https://alion.io/company/wepoint/technologies) — Shared technologies: 81 - [Proofpoint](https://alion.io/company/proofpoint/technologies) — Shared technologies: 80 - [Agoda](https://alion.io/company/agoda/technologies) — Shared technologies: 79 - [Nielsen](https://alion.io/company/nielsen/technologies) — Shared technologies: 82 - [Twilio](https://alion.io/company/twilio/technologies) — Shared technologies: 79 --- [Page](https://alion.io/company/similarweb/technologies) · [JSON](https://alion.io/company/similarweb/technologies.json) Source: Alion (alion.io), 2026-11-13. 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