# ARSIEM - **Answer**: ARSIEM builds mostly with Python, Java, JavaScript, C++. Its stack also includes AWS, Kubernetes, ElasticSearch, React.js. Python is named in 31 of the 51 job postings ARSIEM published in the last 12 months (61%). Counted by Alion from the job postings of ARSIEM, updated Nov 13, 2026. - **Window days**: 365 - **Postings analysed**: 51 - **Open postings**: 31 - **Technologies in use**: 133 - **Modernity score**: 80 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 668767 - **Name**: ARSIEM - **Domain**: arsiem.com - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 31; Share: 0.6078; Required: 28; Open postings: 18; First seen: 2022-01-11 - **AWS** — Layer: cloud; Postings: 16; Share: 0.3137; Required: 11; Open postings: 9; First seen: 2026-05-16 - **Kubernetes** — Layer: cloud; Postings: 15; Share: 0.2941; Required: 10; Open postings: 9; First seen: 2025-11-05 - **Docker** — Layer: tools; Postings: 13; Share: 0.2549; Required: 9; Open postings: 9; First seen: 2025-11-05 - **CI/CD** — Layer: practices; Postings: 13; Share: 0.2549; Required: 7; Open postings: 7; First seen: 2026-03-31 - **Git** — Layer: tools; Postings: 11; Share: 0.2157; Required: 11; Open postings: 4; First seen: 2026-03-31 - **Linux** — Layer: cloud; Postings: 11; Share: 0.2157; Required: 8; Open postings: 6; First seen: 2023-01-08 - **Java** — Layer: languages; Postings: 10; Share: 0.1961; Required: 8; Open postings: 5; First seen: 2025-08-05 - **JavaScript** — Layer: languages; Postings: 10; Share: 0.1961; Required: 3; Open postings: 8; First seen: 2026-05-21 - **Ansible** — Layer: tools; Postings: 8; Share: 0.1569; Required: 4; Open postings: 4; First seen: 2025-11-05 - **C++** — Layer: languages; Postings: 6; Share: 0.1176; Required: 6; Open postings: 4; First seen: 2022-01-11 - **GitLab** — Layer: cloud; Postings: 6; Share: 0.1176; Required: 6; Open postings: 2; First seen: 2026-02-12 - **LLM** — Layer: ai; Postings: 6; Share: 0.1176; Required: 6; Open postings: 2; First seen: 2026-03-31 - **Machine Learning** — Layer: practices; Postings: 6; Share: 0.1176; Required: 6; Open postings: 1; First seen: 2026-02-12 - **ElasticSearch** — Layer: data; Postings: 6; Share: 0.1176; Required: 4; Open postings: 3; First seen: 2026-05-16 - **RAG** — Layer: practices; Postings: 6; Share: 0.1176; Required: 4; Open postings: 1; First seen: 2026-03-31 - **Unix** — Layer: cloud; Postings: 6; Share: 0.1176; Required: 4; Open postings: 3; First seen: 2023-01-08 - **Splunk** — Layer: cloud; Postings: 6; Share: 0.1176; Required: 3; Open postings: 3; First seen: 2025-11-05 - **Spark** — Layer: cloud; Postings: 6; Share: 0.1176; Required: 0; Open postings: 3; First seen: 2026-02-12 - **pySpark** — Layer: tools; Postings: 5; Share: 0.098; Required: 5; Open postings: 2; First seen: 2026-02-12 - **Bash** — Layer: languages; Postings: 5; Share: 0.098; Required: 4; Open postings: 2; First seen: 2022-01-11 - **SIEM** — Layer: cloud; Postings: 5; Share: 0.098; Required: 3; Open postings: 4; First seen: 2024-11-15 - **ETL/ELT** — Layer: practices; Postings: 4; Share: 0.0784; Required: 3; Open postings: 4; First seen: 2026-06-16 - **Rest API** — Layer: tools; Postings: 4; Share: 0.0784; Required: 3; Open postings: 4; First seen: 2026-06-24 - **Windows** — Layer: cloud; Postings: 4; Share: 0.0784; Required: 3; Open postings: 3; First seen: 2022-01-11 - **Terraform** — Layer: tools; Postings: 4; Share: 0.0784; Required: 2; Open postings: 1; First seen: 2026-06-04 - **Podman** — Layer: tools; Postings: 4; Share: 0.0784; Required: 1; Open postings: 4; First seen: 2025-11-05 - **React.js** — Layer: frameworks; Postings: 4; Share: 0.0784; Required: 1; Open postings: 3; First seen: 2026-06-24 - **Red Hat** — Layer: cloud; Postings: 4; Share: 0.0784; Required: 1; Open postings: 2; First seen: 2023-01-08 - **SQL** — Layer: languages; Postings: 4; Share: 0.0784; Required: 1; Open postings: 4; First seen: 2025-11-05 - **Vue.js** — Layer: frameworks; Postings: 4; Share: 0.0784; Required: 1; Open postings: 3; First seen: 2026-06-24 - **Claude Code** — Layer: tools; Postings: 4; Share: 0.0784; Required: 0; Open postings: 0; First seen: 2026-03-31 - **TypeScript** — Layer: languages; Postings: 4; Share: 0.0784; Required: 0; Open postings: 2; First seen: 2026-05-21 - **Amazon EKS** — Layer: cloud; Postings: 3; Share: 0.0588; Required: 3; Open postings: 1; First seen: 2026-05-16 - **Fine-tuning** — Layer: practices; Postings: 3; Share: 0.0588; Required: 3; Open postings: 0; First seen: 2026-03-31 - **Angular** — Layer: frameworks; Postings: 3; Share: 0.0588; Required: 2; Open postings: 1; First seen: 2026-05-21 - **Apache Kafka** — Layer: cloud; Postings: 3; Share: 0.0588; Required: 2; Open postings: 3; First seen: 2026-07-11 - **Configuration Management** — Layer: practices; Postings: 3; Share: 0.0588; Required: 2; Open postings: 2; First seen: 2025-11-05 - **Hadoop** — Layer: frameworks; Postings: 3; Share: 0.0588; Required: 2; Open postings: 3; First seen: 2026-06-16 - **MongoDB** — Layer: data; Postings: 3; Share: 0.0588; Required: 2; Open postings: 3; First seen: 2026-10-30 - **PKI** — Layer: practices; Postings: 3; Share: 0.0588; Required: 2; Open postings: 1; First seen: 2026-06-04 - **Grafana** — Layer: cloud; Postings: 3; Share: 0.0588; Required: 0; Open postings: 0; First seen: 2026-06-04 - **Prometheus** — Layer: tools; Postings: 3; Share: 0.0588; Required: 0; Open postings: 0; First seen: 2026-06-04 - **VMWare** — Layer: cloud; Postings: 3; Share: 0.0588; Required: 0; Open postings: 3; First seen: 2025-11-05 - **Wireshark** — Layer: tools; Postings: 3; Share: 0.0588; Required: 0; Open postings: 2; First seen: 2022-01-11 - **AWS Bedrock** — Layer: cloud; Postings: 2; Share: 0.0392; Required: 2; Open postings: 0; First seen: 2026-05-16 - **AWS Lambda** — Layer: cloud; Postings: 2; Share: 0.0392; Required: 2; Open postings: 2; First seen: 2026-07-11 - **Amazon S3** — Layer: cloud; Postings: 2; Share: 0.0392; Required: 2; Open postings: 2; First seen: 2026-07-11 - **Amazon SageMaker** — Layer: cloud; Postings: 2; Share: 0.0392; Required: 2; Open postings: 0; First seen: 2026-05-16 - **Azure** — Layer: cloud; Postings: 2; Share: 0.0392; Required: 2; Open postings: 1; First seen: 2026-08-28 - … 83 more in the JSON form ## Changes ### First appeared - **MongoDB** — First seen: 2026-10-30 - **Azure** — First seen: 2026-08-28 - **Node JS** — First seen: 2026-08-28 - **Airflow** — First seen: 2026-08-28 - **Rancher** — First seen: 2026-08-28 - **Apache Kafka** — First seen: 2026-07-11 - **AWS Lambda** — First seen: 2026-07-11 - **Amazon S3** — First seen: 2026-07-11 ### Rising - **SQL** — Share from: 0; Share to: 16 - **MongoDB** — Share from: 0; Share to: 12 - **GitLab** — Share from: 5; Share to: 12 - **Windows** — Share from: 5; Share to: 12 - **Red Hat** — Share from: 5; Share to: 12 - **Unix** — Share from: 10; Share to: 16 - **Splunk** — Share from: 10; Share to: 16 ### Falling - **RAG** — Share from: 19; Share to: 0 - **CI/CD** — Share from: 33; Share to: 16 - **JavaScript** — Share from: 29; Share to: 16 - **Git** — Share from: 24; Share to: 12 - **Ansible** — Share from: 24; Share to: 12 - **LLM** — Share from: 14; Share to: 4 - **Spark** — Share from: 14; Share to: 4 - **ETL/ELT** — Share from: 14; Share to: 4 ## Similar stacks - [Cyber, Data Analytics & Engineering Services](https://alion.io/company/cti-md/technologies) — Shared technologies: 105 - [Nightwing](https://alion.io/company/nightwing-2/technologies) — Shared technologies: 127 - [GRVTY](https://alion.io/company/grvty/technologies) — Shared technologies: 127 - [Markon Solutions](https://alion.io/company/markon-solutions/technologies) — Shared technologies: 107 - [Agile Defense](https://alion.io/company/agiledefense/technologies) — Shared technologies: 112 - [Mitsubishi UFJ Financial Group](https://alion.io/company/mufg/technologies) — Shared technologies: 126 - [Trend Micro](https://alion.io/company/trend-micro/technologies) — Shared technologies: 115 - [Parsons](https://alion.io/company/parsons/technologies) — Shared technologies: 127 --- [Page](https://alion.io/company/arsiem/technologies) · [JSON](https://alion.io/company/arsiem/technologies.json) Source: Alion (alion.io), 2026-11-13. 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