# RTX - **Answer**: RTX builds mostly with Python, C++, MATLAB, JavaScript. Its stack also includes Linux, Windows, Effector, PostgreSQL. Python is named in 1,269 of the 4,324 job postings RTX published in the last 12 months (29%). Counted by Alion from the job postings of RTX, updated Nov 13, 2026. - **Window days**: 365 - **Postings analysed**: 4324 - **Open postings**: 2264 - **Technologies in use**: 513 - **Modernity score**: 76 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 1162 - **Name**: RTX - **Domain**: rtx.com - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 1269; Share: 0.2935; Required: 1223; Open postings: 624; First seen: 2025-09-23 - **C++** — Layer: languages; Postings: 912; Share: 0.2109; Required: 894; Open postings: 451; First seen: 2025-09-23 - **MATLAB** — Layer: languages; Postings: 803; Share: 0.1857; Required: 778; Open postings: 443; First seen: 2026-03-18 - **Linux** — Layer: cloud; Postings: 691; Share: 0.1598; Required: 678; Open postings: 347; First seen: 2025-10-21 - **CI/CD** — Layer: practices; Postings: 383; Share: 0.0886; Required: 368; Open postings: 177; First seen: 2026-02-23 - **EVMS** — Layer: practices; Postings: 372; Share: 0.086; Required: 354; Open postings: 249; First seen: 2026-01-15 - **Windows** — Layer: cloud; Postings: 338; Share: 0.0782; Required: 333; Open postings: 160; First seen: 2025-12-02 - **Git** — Layer: tools; Postings: 335; Share: 0.0775; Required: 327; Open postings: 154; First seen: 2026-05-04 - **JavaScript** — Layer: languages; Postings: 318; Share: 0.0735; Required: 112; Open postings: 146; First seen: 2026-03-12 - **Microsoft Excel** — Layer: tools; Postings: 282; Share: 0.0652; Required: 271; Open postings: 131; First seen: 2026-01-19 - **GD&T** — Layer: practices; Postings: 279; Share: 0.0645; Required: 270; Open postings: 151; First seen: 2026-04-28 - **IBM DOORS** — Layer: tools; Postings: 275; Share: 0.0636; Required: 266; Open postings: 180; First seen: 2026-03-05 - **Java** — Layer: languages; Postings: 269; Share: 0.0622; Required: 253; Open postings: 129; First seen: 2026-06-18 - **Verification & Validation** — Layer: practices; Postings: 265; Share: 0.0613; Required: 264; Open postings: 181; First seen: 2026-03-05 - **Power BI** — Layer: cloud; Postings: 253; Share: 0.0585; Required: 241; Open postings: 104; First seen: 2025-12-22 - **Azure** — Layer: cloud; Postings: 238; Share: 0.055; Required: 147; Open postings: 107; First seen: 2026-01-28 - **SQL** — Layer: languages; Postings: 234; Share: 0.0541; Required: 222; Open postings: 99; First seen: 2025-12-22 - **AS9100** — Layer: practices; Postings: 231; Share: 0.0534; Required: 222; Open postings: 143; First seen: 2025-10-10 - **Cameo Systems Modeler** — Layer: tools; Postings: 193; Share: 0.0446; Required: 181; Open postings: 144; First seen: 2026-03-05 - **Statistical Process Control** — Layer: practices; Postings: 188; Share: 0.0435; Required: 186; Open postings: 116; First seen: 2025-12-22 - **DO-178C** — Layer: practices; Postings: 188; Share: 0.0435; Required: 184; Open postings: 103; First seen: 2026-05-08 - **C#** — Layer: languages; Postings: 186; Share: 0.043; Required: 173; Open postings: 70; First seen: 2026-05-01 - **Perl** — Layer: languages; Postings: 185; Share: 0.0428; Required: 185; Open postings: 90; First seen: 2026-04-01 - **Unix** — Layer: cloud; Postings: 183; Share: 0.0423; Required: 180; Open postings: 94; First seen: 2026-04-01 - **SolidWorks** — Layer: tools; Postings: 182; Share: 0.0421; Required: 178; Open postings: 66; First seen: 2026-07-13 - **MBSE** — Layer: practices; Postings: 175; Share: 0.0405; Required: 173; Open postings: 111; First seen: 2026-03-12 - **Jenkins** — Layer: tools; Postings: 175; Share: 0.0405; Required: 172; Open postings: 67; First seen: 2026-06-18 - **Docker** — Layer: tools; Postings: 175; Share: 0.0405; Required: 160; Open postings: 89; First seen: 2026-02-23 - **AWS** — Layer: cloud; Postings: 173; Share: 0.04; Required: 154; Open postings: 81; First seen: 2026-01-28 - **Red Hat** — Layer: cloud; Postings: 165; Share: 0.0382; Required: 162; Open postings: 77; First seen: 2026-06-05 - **Kubernetes** — Layer: cloud; Postings: 164; Share: 0.0379; Required: 153; Open postings: 89; First seen: 2026-03-27 - **Effector** — Layer: frameworks; Postings: 162; Share: 0.0375; Required: 162; Open postings: 98; First seen: 2026-03-12 - **Simulink** — Layer: tools; Postings: 155; Share: 0.0358; Required: 142; Open postings: 94; First seen: 2026-03-18 - **AutoCAD** — Layer: tools; Postings: 151; Share: 0.0349; Required: 147; Open postings: 61; First seen: 2025-08-13 - **FMEA** — Layer: practices; Postings: 149; Share: 0.0345; Required: 143; Open postings: 90; First seen: 2025-10-10 - **Machine Learning** — Layer: practices; Postings: 148; Share: 0.0342; Required: 141; Open postings: 70; First seen: 2026-02-23 - **VHDL** — Layer: languages; Postings: 146; Share: 0.0338; Required: 145; Open postings: 90; First seen: 2026-03-18 - **VMWare** — Layer: cloud; Postings: 137; Share: 0.0317; Required: 135; Open postings: 72; First seen: 2026-03-27 - **ANSYS** — Layer: tools; Postings: 129; Share: 0.0298; Required: 119; Open postings: 79; First seen: 2025-09-23 - **Configuration Management** — Layer: practices; Postings: 128; Share: 0.0296; Required: 128; Open postings: 55; First seen: 2026-06-08 - **GitLab** — Layer: cloud; Postings: 122; Share: 0.0282; Required: 115; Open postings: 53; First seen: 2026-03-27 - **Bash** — Layer: languages; Postings: 117; Share: 0.0271; Required: 116; Open postings: 59; First seen: 2026-06-02 - **Ansible** — Layer: tools; Postings: 114; Share: 0.0264; Required: 109; Open postings: 57; First seen: 2026-06-15 - **Verilog** — Layer: languages; Postings: 109; Share: 0.0252; Required: 109; Open postings: 66; First seen: 2026-04-27 - **Active Directory** — Layer: cloud; Postings: 105; Share: 0.0243; Required: 103; Open postings: 43; First seen: 2026-06-04 - **TCP/IP** — Layer: practices; Postings: 101; Share: 0.0234; Required: 96; Open postings: 45; First seen: 2026-03-01 - **DO-160** — Layer: practices; Postings: 94; Share: 0.0217; Required: 89; Open postings: 54; First seen: 2026-08-06 - **CATIA** — Layer: tools; Postings: 94; Share: 0.0217; Required: 87; Open postings: 48; First seen: 2025-09-23 - **DNS** — Layer: practices; Postings: 93; Share: 0.0215; Required: 93; Open postings: 40; First seen: 2026-03-01 - **Bitbucket** — Layer: cloud; Postings: 92; Share: 0.0213; Required: 90; Open postings: 27; First seen: 2026-06-02 - … 463 more in the JSON form ## Changes ### First appeared - **Femap** — First seen: 2026-11-10 - **Lua** — First seen: 2026-11-04 - **Objective-C** — First seen: 2026-10-22 - **WebSockets** — First seen: 2026-10-09 - **Kubeflow** — First seen: 2026-10-09 - **Datadog** — First seen: 2026-10-08 - **Fedora** — First seen: 2026-10-08 - **GitGuardian** — First seen: 2026-10-08 ### Rising - **Git** — Share from: 4; Share to: 8 - **Microsoft Excel** — Share from: 4; Share to: 7 - **Power BI** — Share from: 3; Share to: 6 - **SolidWorks** — Share from: 2; Share to: 5 ### Falling - **JavaScript** — Share from: 13; Share to: 6 - **Effector** — Share from: 10; Share to: 3 - **DNS** — Share from: 5; Share to: 2 - **DHCP** — Share from: 4; Share to: 2 ## Similar stacks - [Lockheed Martin](https://alion.io/company/lockheedmartin/technologies) — Shared technologies: 372 - [Northrop Grumman](https://alion.io/company/northropgrumman/technologies) — Shared technologies: 340 - [L3Harris Technologies](https://alion.io/company/l3harris-technologies/technologies) — Shared technologies: 276 - [Airbus](https://alion.io/company/airbus/technologies) — Shared technologies: 341 - [Blue Origin](https://alion.io/company/blueorigin/technologies) — Shared technologies: 286 - [Thales Group](https://alion.io/company/thales/technologies) — Shared technologies: 355 - [CACI International](https://alion.io/company/caci-international/technologies) — Shared technologies: 348 - [Anduril Industries](https://alion.io/company/anduril/technologies) — Shared technologies: 300 --- [Page](https://alion.io/company/raytheon-technologies/technologies) · [JSON](https://alion.io/company/raytheon-technologies/technologies.json) Source: Alion (alion.io), 2026-11-13. 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