# BlackLine - **Answer**: BlackLine builds mostly with Python, C#, SQL, Java. Its stack also includes AWS, GCP, Snowflake, PostgreSQL. Python is named in 29 of the 74 job postings BlackLine published in the last 12 months (39%). Counted by Alion from the job postings of BlackLine, updated Nov 11, 2026. - **Window days**: 365 - **Postings analysed**: 74 - **Open postings**: 42 - **Technologies in use**: 175 - **Modernity score**: 84 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 1833518 - **Name**: BlackLine - **Domain**: blackline.com - **Url**: ## Technologies - **AI Agents** — Layer: practices; Postings: 30; Share: 0.4054; Required: 27; Open postings: 16; First seen: 2026-07-20 - **Claude** — Layer: ai; Postings: 29; Share: 0.3919; Required: 24; Open postings: 14; First seen: 2026-07-21 - **Python** — Layer: languages; Postings: 29; Share: 0.3919; Required: 24; Open postings: 19; First seen: 2026-07-20 - **AWS** — Layer: cloud; Postings: 28; Share: 0.3784; Required: 25; Open postings: 19; First seen: 2026-07-20 - **GCP** — Layer: cloud; Postings: 27; Share: 0.3649; Required: 24; Open postings: 17; First seen: 2026-07-20 - **Azure** — Layer: cloud; Postings: 26; Share: 0.3514; Required: 23; Open postings: 17; First seen: 2026-07-20 - **C#** — Layer: languages; Postings: 25; Share: 0.3378; Required: 21; Open postings: 17; First seen: 2026-07-20 - **CI/CD** — Layer: practices; Postings: 24; Share: 0.3243; Required: 20; Open postings: 15; First seen: 2026-07-20 - **SQL** — Layer: languages; Postings: 24; Share: 0.3243; Required: 18; Open postings: 21; First seen: 2026-07-20 - **Human-in-the-Loop** — Layer: practices; Postings: 16; Share: 0.2162; Required: 13; Open postings: 7; First seen: 2026-07-21 - **Kubernetes** — Layer: cloud; Postings: 16; Share: 0.2162; Required: 13; Open postings: 9; First seen: 2026-07-20 - **Apache Kafka** — Layer: cloud; Postings: 14; Share: 0.1892; Required: 8; Open postings: 11; First seen: 2026-07-20 - **LLM** — Layer: ai; Postings: 13; Share: 0.1757; Required: 10; Open postings: 10; First seen: 2026-07-20 - **Cursor** — Layer: tools; Postings: 13; Share: 0.1757; Required: 9; Open postings: 9; First seen: 2026-07-21 - **Java** — Layer: languages; Postings: 13; Share: 0.1757; Required: 9; Open postings: 9; First seen: 2026-07-20 - **.NET** — Layer: cloud; Postings: 12; Share: 0.1622; Required: 10; Open postings: 11; First seen: 2026-07-20 - **Snowflake** — Layer: data; Postings: 12; Share: 0.1622; Required: 10; Open postings: 9; First seen: 2026-07-21 - **JavaScript** — Layer: languages; Postings: 12; Share: 0.1622; Required: 5; Open postings: 9; First seen: 2026-07-20 - **LLM Guardrails** — Layer: practices; Postings: 11; Share: 0.1486; Required: 9; Open postings: 7; First seen: 2026-07-20 - **Machine Learning** — Layer: practices; Postings: 10; Share: 0.1351; Required: 9; Open postings: 5; First seen: 2026-07-20 - **Terraform** — Layer: tools; Postings: 10; Share: 0.1351; Required: 7; Open postings: 5; First seen: 2026-08-21 - **PostgreSQL** — Layer: data; Postings: 10; Share: 0.1351; Required: 6; Open postings: 5; First seen: 2026-08-21 - **Docker** — Layer: tools; Postings: 9; Share: 0.1216; Required: 8; Open postings: 7; First seen: 2026-07-20 - **RAG** — Layer: practices; Postings: 9; Share: 0.1216; Required: 4; Open postings: 5; First seen: 2026-07-20 - **Rest API** — Layer: tools; Postings: 8; Share: 0.1081; Required: 7; Open postings: 6; First seen: 2026-07-20 - **React.js** — Layer: frameworks; Postings: 8; Share: 0.1081; Required: 4; Open postings: 6; First seen: 2026-08-14 - **Gemini** — Layer: ai; Postings: 7; Share: 0.0946; Required: 7; Open postings: 4; First seen: 2026-07-21 - **Model Context Protocol** — Layer: tools; Postings: 7; Share: 0.0946; Required: 7; Open postings: 3; First seen: 2026-07-20 - **Prompt Engineering** — Layer: practices; Postings: 7; Share: 0.0946; Required: 7; Open postings: 4; First seen: 2026-07-20 - **RabbitMQ** — Layer: cloud; Postings: 7; Share: 0.0946; Required: 4; Open postings: 7; First seen: 2026-07-20 - **Microsoft Excel** — Layer: tools; Postings: 6; Share: 0.0811; Required: 6; Open postings: 3; First seen: 2026-08-10 - **Anthropic** — Layer: cloud; Postings: 6; Share: 0.0811; Required: 4; Open postings: 6; First seen: 2026-07-20 - **Git** — Layer: tools; Postings: 6; Share: 0.0811; Required: 4; Open postings: 4; First seen: 2026-09-03 - **LangChain** — Layer: frameworks; Postings: 6; Share: 0.0811; Required: 4; Open postings: 3; First seen: 2026-07-20 - **GitHub Actions** — Layer: cloud; Postings: 6; Share: 0.0811; Required: 3; Open postings: 4; First seen: 2026-08-21 - **ChatGPT** — Layer: ai; Postings: 5; Share: 0.0676; Required: 5; Open postings: 1; First seen: 2026-08-17 - **ETL/ELT** — Layer: practices; Postings: 5; Share: 0.0676; Required: 5; Open postings: 5; First seen: 2026-07-20 - **Figma** — Layer: cloud; Postings: 5; Share: 0.0676; Required: 5; Open postings: 2; First seen: 2026-08-14 - **Vertex AI Agent Builder** — Layer: cloud; Postings: 5; Share: 0.0676; Required: 5; Open postings: 3; First seen: 2026-07-21 - **Vertex AI** — Layer: cloud; Postings: 5; Share: 0.0676; Required: 4; Open postings: 3; First seen: 2026-07-20 - **OpenAI** — Layer: cloud; Postings: 5; Share: 0.0676; Required: 3; Open postings: 5; First seen: 2026-08-21 - **Anomaly Detection** — Layer: practices; Postings: 4; Share: 0.0541; Required: 4; Open postings: 3; First seen: 2026-07-21 - **Bash** — Layer: languages; Postings: 4; Share: 0.0541; Required: 4; Open postings: 1; First seen: 2026-08-29 - **Go** — Layer: languages; Postings: 4; Share: 0.0541; Required: 4; Open postings: 4; First seen: 2026-08-14 - **Jenkins** — Layer: tools; Postings: 4; Share: 0.0541; Required: 4; Open postings: 1; First seen: 2026-08-21 - **LangGraph** — Layer: frameworks; Postings: 4; Share: 0.0541; Required: 4; Open postings: 1; First seen: 2026-07-20 - **Linux** — Layer: cloud; Postings: 4; Share: 0.0541; Required: 4; Open postings: 1; First seen: 2026-08-29 - **PowerShell** — Layer: languages; Postings: 4; Share: 0.0541; Required: 4; Open postings: 2; First seen: 2026-08-29 - **API Gateway** — Layer: cloud; Postings: 4; Share: 0.0541; Required: 3; Open postings: 4; First seen: 2026-07-20 - **TypeScript** — Layer: languages; Postings: 4; Share: 0.0541; Required: 3; Open postings: 2; First seen: 2026-08-14 - … 125 more in the JSON form ## Changes ### Rising - **Claude** — Share from: 9; Share to: 44 - **Terraform** — Share from: 0; Share to: 16 - **PostgreSQL** — Share from: 0; Share to: 16 - **Human-in-the-Loop** — Share from: 9; Share to: 24 - **React.js** — Share from: 0; Share to: 13 - **Cursor** — Share from: 9; Share to: 19 - **Git** — Share from: 0; Share to: 10 - **GitHub Actions** — Share from: 0; Share to: 10 ### Falling - **API Gateway** — Share from: 36; Share to: 0 - **RabbitMQ** — Share from: 36; Share to: 5 - **ETL/ELT** — Share from: 27; Share to: 3 - **GCP** — Share from: 55; Share to: 33 - **Java** — Share from: 36; Share to: 14 - **Apache Kafka** — Share from: 36; Share to: 16 - **CI/CD** — Share from: 45; Share to: 30 - **SQL** — Share from: 45; Share to: 30 ## Similar stacks - [Orion Innovation](https://alion.io/company/orioninc/technologies) — Shared technologies: 132 - [Deutsche Börse](https://alion.io/company/deutsche-boerse/technologies) — Shared technologies: 118 - [Saviynt](https://alion.io/company/saviynt/technologies) — Shared technologies: 120 - [Onepoint](https://alion.io/company/groupeonepoint/technologies) — Shared technologies: 127 - [OCBC Bank](https://alion.io/company/ocbc/technologies) — Shared technologies: 130 - [NielsenIQ](https://alion.io/company/nielseniq/technologies) — Shared technologies: 137 - [Comcast](https://alion.io/company/comcast-corporation/technologies) — Shared technologies: 133 - [The Hartford](https://alion.io/company/thehartford-com/technologies) — Shared technologies: 125 --- [Page](https://alion.io/company/blackline-com/technologies) · [JSON](https://alion.io/company/blackline-com/technologies.json) Source: Alion (alion.io), 2026-11-11. 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