# GTT - **Answer**: GTT builds mostly with C#, SQL, Python, Go. Its stack also includes .NET, Azure, MS SQL, Oracle. C# is named in 9 of the 34 job postings GTT published in the last 12 months (26%). Counted by Alion from the job postings of GTT, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 34 - **Open postings**: 10 - **Technologies in use**: 50 - **Modernity score**: 64 - **Ai adoption**: no - **License**: CC BY-SA 4.0 ## Company - **Id**: 4434 - **Name**: GTT - **Domain**: gtt.net - **Url**: ## Technologies - **MPLS** — Layer: practices; Postings: 17; Share: 0.5; Required: 17; Open postings: 6; First seen: 2026-08-21 - **BGP** — Layer: practices; Postings: 13; Share: 0.3824; Required: 13; Open postings: 5; First seen: 2026-08-25 - **OSPF** — Layer: practices; Postings: 10; Share: 0.2941; Required: 10; Open postings: 5; First seen: 2026-10-02 - **.NET** — Layer: cloud; Postings: 9; Share: 0.2647; Required: 9; Open postings: 2; First seen: 2026-02-17 - **C#** — Layer: languages; Postings: 9; Share: 0.2647; Required: 1; Open postings: 2; First seen: 2026-02-17 - **Azure** — Layer: cloud; Postings: 7; Share: 0.2059; Required: 3; Open postings: 1; First seen: 2026-02-17 - **VPN** — Layer: practices; Postings: 6; Share: 0.1765; Required: 6; Open postings: 2; First seen: 2026-08-25 - **Linux** — Layer: cloud; Postings: 6; Share: 0.1765; Required: 5; Open postings: 1; First seen: 2026-02-17 - **AWS** — Layer: cloud; Postings: 6; Share: 0.1765; Required: 2; Open postings: 1; First seen: 2026-02-17 - **Windows** — Layer: cloud; Postings: 5; Share: 0.1471; Required: 5; Open postings: 2; First seen: 2026-02-17 - **TCP/IP** — Layer: practices; Postings: 5; Share: 0.1471; Required: 4; Open postings: 1; First seen: 2026-07-22 - **DNS** — Layer: practices; Postings: 4; Share: 0.1176; Required: 4; Open postings: 2; First seen: 2026-08-25 - **Microsoft Excel** — Layer: tools; Postings: 4; Share: 0.1176; Required: 3; Open postings: 0; First seen: 2026-07-22 - **GCP** — Layer: cloud; Postings: 4; Share: 0.1176; Required: 1; Open postings: 1; First seen: 2026-02-17 - **DHCP** — Layer: practices; Postings: 3; Share: 0.0882; Required: 3; Open postings: 1; First seen: 2026-08-25 - **Power BI** — Layer: cloud; Postings: 3; Share: 0.0882; Required: 2; Open postings: 0; First seen: 2026-07-22 - **Red Hat** — Layer: cloud; Postings: 3; Share: 0.0882; Required: 1; Open postings: 0; First seen: 2026-02-17 - **Active Directory** — Layer: cloud; Postings: 2; Share: 0.0588; Required: 2; Open postings: 1; First seen: 2026-09-08 - **Incident Management** — Layer: practices; Postings: 2; Share: 0.0588; Required: 2; Open postings: 0; First seen: 2026-09-11 - **Puppet** — Layer: tools; Postings: 2; Share: 0.0588; Required: 2; Open postings: 0; First seen: 2026-08-21 - **SQL** — Layer: languages; Postings: 2; Share: 0.0588; Required: 2; Open postings: 0; First seen: 2026-07-22 - **SaltStack** — Layer: tools; Postings: 2; Share: 0.0588; Required: 2; Open postings: 0; First seen: 2026-08-21 - **Unix** — Layer: cloud; Postings: 2; Share: 0.0588; Required: 2; Open postings: 1; First seen: 2026-10-08 - **Ansible** — Layer: tools; Postings: 2; Share: 0.0588; Required: 1; Open postings: 0; First seen: 2026-02-17 - **Machine Learning** — Layer: practices; Postings: 2; Share: 0.0588; Required: 1; Open postings: 1; First seen: 2026-08-25 - **Python** — Layer: languages; Postings: 2; Share: 0.0588; Required: 1; Open postings: 0; First seen: 2026-02-17 - **AI Agents** — Layer: practices; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-08-25 - **CI/CD** — Layer: practices; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-08-21 - **Chef** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-08-21 - **Configuration Management** — Layer: practices; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-08-21 - **Docker** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-09-09 - **FortiGate** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 1; First seen: 2026-10-22 - **KVM** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-02-17 - **Model Context Protocol** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-09-08 - **Nagios** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-09-09 - **SAP BusinessObjects** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-07-22 - **Self-Healing** — Layer: practices; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-08-21 - **Tableau** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-07-22 - **Ubuntu** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-02-17 - **VMWare** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-09-09 - **Wireshark** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-10-08 - **Zabbix** — Layer: tools; Postings: 1; Share: 0.0294; Required: 1; Open postings: 0; First seen: 2026-09-09 - **DLP** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-09-11 - **Go** — Layer: languages; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-02-17 - **Informatica** — Layer: tools; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-08-25 - **KubeVirt** — Layer: tools; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-02-17 - **Kubernetes** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-02-17 - **MS SQL** — Layer: data; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-07-22 - **Oracle** — Layer: data; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-07-22 - **Zscaler** — Layer: cloud; Postings: 1; Share: 0.0294; Required: 0; Open postings: 0; First seen: 2026-09-11 ## Changes ### First appeared - **Unix** — First seen: 2026-10-08 - **OSPF** — First seen: 2026-10-02 - **Incident Management** — First seen: 2026-09-11 - **Active Directory** — First seen: 2026-09-08 - **BGP** — First seen: 2026-08-25 - **VPN** — First seen: 2026-08-25 - **DNS** — First seen: 2026-08-25 - **DHCP** — First seen: 2026-08-25 ## Similar stacks - [Ensono](https://alion.io/company/ensono/technologies) — Shared technologies: 44 - [InterSystems](https://alion.io/company/intersystems/technologies) — Shared technologies: 39 - [Orange Business](https://alion.io/company/orange-business/technologies) — Shared technologies: 44 - [Scientific Research Corporation](https://alion.io/company/scires/technologies) — Shared technologies: 40 - [AIS](https://alion.io/company/ais/technologies) — Shared technologies: 39 - [Alstom](https://alion.io/company/alstom/technologies) — Shared technologies: 47 - [Spektrum Group](https://alion.io/company/spektrum-group/technologies) — Shared technologies: 43 - [Arista Networks](https://alion.io/company/arista-networks/technologies) — Shared technologies: 40 --- [Page](https://alion.io/company/gtt/technologies) · [JSON](https://alion.io/company/gtt/technologies.json) Source: Alion (alion.io), 2026-11-12. 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