# Five9 - **Answer**: Five9 builds mostly with Python, SQL, JavaScript, Java. Its stack also includes GCP, Kubernetes, React.js, Google BigQuery. GCP is named in 61 of the 120 job postings Five9 published in the last 12 months (51%). Counted by Alion from the job postings of Five9, updated Nov 13, 2026. - **Window days**: 365 - **Postings analysed**: 120 - **Open postings**: 47 - **Technologies in use**: 192 - **Modernity score**: 80 - **Ai adoption**: yes - **Own products**: AI Agents - **License**: CC BY-SA 4.0 ## Company - **Id**: 58571 - **Name**: Five9 - **Domain**: five9.com - **Url**: ## Technologies - **CI/CD** — Layer: practices; Postings: 66; Share: 0.55; Required: 58; Open postings: 27; First seen: 2025-10-11 - **GCP** — Layer: cloud; Postings: 61; Share: 0.5083; Required: 54; Open postings: 20; First seen: 2025-12-08 - **Python** — Layer: languages; Postings: 50; Share: 0.4167; Required: 47; Open postings: 30; First seen: 2025-10-11 - **Kubernetes** — Layer: cloud; Postings: 48; Share: 0.4; Required: 35; Open postings: 27; First seen: 2025-10-11 - **AWS** — Layer: cloud; Postings: 41; Share: 0.3417; Required: 34; Open postings: 15; First seen: 2025-12-08 - **Terraform** — Layer: tools; Postings: 40; Share: 0.3333; Required: 39; Open postings: 23; First seen: 2025-10-11 - **Linux** — Layer: cloud; Postings: 34; Share: 0.2833; Required: 31; Open postings: 23; First seen: 2025-10-11 - **Ansible** — Layer: tools; Postings: 30; Share: 0.25; Required: 29; Open postings: 21; First seen: 2025-10-11 - **Git** — Layer: tools; Postings: 30; Share: 0.25; Required: 26; Open postings: 17; First seen: 2025-10-11 - **Azure** — Layer: cloud; Postings: 26; Share: 0.2167; Required: 22; Open postings: 9; First seen: 2025-12-08 - **SQL** — Layer: languages; Postings: 26; Share: 0.2167; Required: 20; Open postings: 8; First seen: 2025-12-08 - **Rest API** — Layer: tools; Postings: 23; Share: 0.1917; Required: 19; Open postings: 8; First seen: 2025-12-23 - **GitLab** — Layer: cloud; Postings: 22; Share: 0.1833; Required: 19; Open postings: 6; First seen: 2026-01-14 - **Helm** — Layer: tools; Postings: 20; Share: 0.1667; Required: 19; Open postings: 16; First seen: 2026-01-14 - **JavaScript** — Layer: languages; Postings: 20; Share: 0.1667; Required: 15; Open postings: 4; First seen: 2025-12-08 - **Grafana** — Layer: cloud; Postings: 17; Share: 0.1417; Required: 17; Open postings: 13; First seen: 2025-10-11 - **Java** — Layer: languages; Postings: 17; Share: 0.1417; Required: 15; Open postings: 5; First seen: 2025-10-20 - **Bash** — Layer: languages; Postings: 16; Share: 0.1333; Required: 16; Open postings: 13; First seen: 2025-10-11 - **GitOps** — Layer: practices; Postings: 16; Share: 0.1333; Required: 16; Open postings: 13; First seen: 2025-10-11 - **OpenStack** — Layer: tools; Postings: 16; Share: 0.1333; Required: 16; Open postings: 14; First seen: 2026-01-14 - **Prometheus** — Layer: tools; Postings: 16; Share: 0.1333; Required: 15; Open postings: 13; First seen: 2025-10-11 - **LLM** — Layer: ai; Postings: 16; Share: 0.1333; Required: 13; Open postings: 2; First seen: 2025-12-23 - **Docker** — Layer: tools; Postings: 15; Share: 0.125; Required: 10; Open postings: 8; First seen: 2025-12-08 - **GitLab CI** — Layer: cloud; Postings: 15; Share: 0.125; Required: 10; Open postings: 6; First seen: 2026-01-19 - **Ubuntu** — Layer: cloud; Postings: 14; Share: 0.1167; Required: 14; Open postings: 12; First seen: 2025-10-11 - **MPLS** — Layer: practices; Postings: 13; Share: 0.1083; Required: 13; Open postings: 9; First seen: 2026-05-08 - **OpenAI** — Layer: cloud; Postings: 13; Share: 0.1083; Required: 11; Open postings: 4; First seen: 2025-12-23 - **React.js** — Layer: frameworks; Postings: 13; Share: 0.1083; Required: 11; Open postings: 2; First seen: 2025-12-08 - **BGP** — Layer: practices; Postings: 12; Share: 0.1; Required: 12; Open postings: 8; First seen: 2026-05-27 - **Loki** — Layer: tools; Postings: 12; Share: 0.1; Required: 12; Open postings: 10; First seen: 2025-10-11 - **OSPF** — Layer: practices; Postings: 12; Share: 0.1; Required: 12; Open postings: 7; First seen: 2026-05-27 - **Claude** — Layer: ai; Postings: 12; Share: 0.1; Required: 8; Open postings: 4; First seen: 2025-10-28 - **Jenkins** — Layer: tools; Postings: 11; Share: 0.0917; Required: 8; Open postings: 7; First seen: 2025-12-23 - **Google BigQuery** — Layer: data; Postings: 11; Share: 0.0917; Required: 5; Open postings: 1; First seen: 2026-01-19 - **CentOS Stream** — Layer: cloud; Postings: 10; Share: 0.0833; Required: 10; Open postings: 9; First seen: 2025-10-11 - **IAM** — Layer: practices; Postings: 10; Share: 0.0833; Required: 10; Open postings: 3; First seen: 2026-05-07 - **TypeScript** — Layer: languages; Postings: 10; Share: 0.0833; Required: 9; Open postings: 0; First seen: 2025-12-08 - **GitHub Actions** — Layer: cloud; Postings: 10; Share: 0.0833; Required: 7; Open postings: 6; First seen: 2025-12-23 - **Claude Code** — Layer: tools; Postings: 10; Share: 0.0833; Required: 6; Open postings: 1; First seen: 2026-01-29 - **Spring Boot** — Layer: frameworks; Postings: 9; Share: 0.075; Required: 9; Open postings: 2; First seen: 2026-01-19 - **Incident Management** — Layer: practices; Postings: 9; Share: 0.075; Required: 8; Open postings: 5; First seen: 2025-12-23 - **KVM** — Layer: tools; Postings: 9; Share: 0.075; Required: 8; Open postings: 8; First seen: 2025-10-11 - **Copilot** — Layer: tools; Postings: 9; Share: 0.075; Required: 7; Open postings: 0; First seen: 2026-01-29 - **Calico** — Layer: tools; Postings: 8; Share: 0.0667; Required: 8; Open postings: 6; First seen: 2026-07-10 - **Google GKE** — Layer: cloud; Postings: 8; Share: 0.0667; Required: 7; Open postings: 4; First seen: 2026-01-14 - **Looker** — Layer: cloud; Postings: 8; Share: 0.0667; Required: 7; Open postings: 3; First seen: 2026-05-05 - **ArgoCD** — Layer: tools; Postings: 7; Share: 0.0583; Required: 7; Open postings: 5; First seen: 2026-01-14 - **Cloudflare** — Layer: cloud; Postings: 7; Share: 0.0583; Required: 7; Open postings: 5; First seen: 2026-07-10 - **ETL/ELT** — Layer: practices; Postings: 7; Share: 0.0583; Required: 7; Open postings: 0; First seen: 2026-06-11 - **Unix** — Layer: cloud; Postings: 7; Share: 0.0583; Required: 7; Open postings: 2; First seen: 2026-01-29 - … 142 more in the JSON form ## Changes ### First appeared - **Pytest** — First seen: 2026-11-03 - **Robot Framework** — First seen: 2026-11-03 - **Selenium** — First seen: 2026-11-03 - **ChatGPT** — First seen: 2026-09-18 - **Redux** — First seen: 2026-09-03 - **Databricks** — First seen: 2026-09-03 - **JUnit** — First seen: 2026-09-03 - **RxJava** — First seen: 2026-09-03 ### Rising - **Rest API** — Share from: 8; Share to: 24 - **GitLab CI** — Share from: 6; Share to: 16 - **GitHub Actions** — Share from: 4; Share to: 14 - **MPLS** — Share from: 8; Share to: 16 - **OpenAI** — Share from: 6; Share to: 14 - **Claude** — Share from: 6; Share to: 14 - **Jenkins** — Share from: 6; Share to: 14 - **Calico** — Share from: 4; Share to: 12 ### Falling - **AWS** — Share from: 41; Share to: 20 - **Grafana** — Share from: 22; Share to: 8 - **IAM** — Share from: 16; Share to: 2 - **GitLab** — Share from: 22; Share to: 10 - **Prometheus** — Share from: 20; Share to: 8 - **Loki** — Share from: 16; Share to: 6 - **CentOS Stream** — Share from: 14; Share to: 4 - **Google GKE** — Share from: 10; Share to: 0 ### Not seen 180d - **Text-to-Speech** — Last seen: 2026-05-07 - **CockroachDB** — Last seen: 2026-05-05 - **Swagger** — Last seen: 2026-05-05 ## Similar stacks - [NICE](https://alion.io/company/nice/technologies) — Shared technologies: 154 - [Genesys](https://alion.io/company/genesys/technologies) — Shared technologies: 140 - [AT&T](https://alion.io/company/att-com/technologies) — Shared technologies: 138 - [Broadridge](https://alion.io/company/broadridge/technologies) — Shared technologies: 136 - [Miratech](https://alion.io/company/miratech/technologies) — Shared technologies: 127 - [TransUnion](https://alion.io/company/transunion/technologies) — Shared technologies: 154 - [OpenText](https://alion.io/company/opentext/technologies) — Shared technologies: 137 - [Intercontinental Exchange](https://alion.io/company/intercontinental-exchange/technologies) — Shared technologies: 144 --- [Page](https://alion.io/company/five9/technologies) · [JSON](https://alion.io/company/five9/technologies.json) Source: Alion (alion.io), 2026-11-13. 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