# Toss - **Answer**: Toss builds mostly with Python, SQL, Java, Kotlin. Its stack also includes Kubernetes, Apache Kafka, MySQL, ElasticSearch. Python is named in 36 of the 127 job postings Toss published in the last 12 months (28%). Counted by Alion from the job postings of Toss, updated Nov 12, 2026. - **Window days**: 365 - **Postings analysed**: 127 - **Open postings**: 104 - **Technologies in use**: 195 - **Modernity score**: 80 - **Ai adoption**: yes - **License**: CC BY-SA 4.0 ## Company - **Id**: 51109 - **Name**: Toss - **Domain**: toss.im - **Url**: ## Technologies - **Python** — Layer: languages; Postings: 36; Share: 0.2835; Required: 34; Open postings: 33; First seen: 2020-07-06 - **LLM** — Layer: ai; Postings: 31; Share: 0.2441; Required: 31; Open postings: 30; First seen: 2020-07-01 - **SQL** — Layer: languages; Postings: 30; Share: 0.2362; Required: 30; Open postings: 25; First seen: 2020-06-25 - **Kubernetes** — Layer: cloud; Postings: 28; Share: 0.2205; Required: 28; Open postings: 20; First seen: 2020-07-02 - **Apache Kafka** — Layer: cloud; Postings: 17; Share: 0.1339; Required: 17; Open postings: 14; First seen: 2020-07-02 - **Grafana** — Layer: cloud; Postings: 12; Share: 0.0945; Required: 12; Open postings: 10; First seen: 2020-07-02 - **Prometheus** — Layer: tools; Postings: 12; Share: 0.0945; Required: 12; Open postings: 11; First seen: 2020-07-02 - **Java** — Layer: languages; Postings: 12; Share: 0.0945; Required: 10; Open postings: 10; First seen: 2020-07-02 - **Kotlin** — Layer: languages; Postings: 11; Share: 0.0866; Required: 11; Open postings: 9; First seen: 2020-07-02 - **MySQL** — Layer: data; Postings: 11; Share: 0.0866; Required: 11; Open postings: 9; First seen: 2020-06-25 - **CI/CD** — Layer: practices; Postings: 10; Share: 0.0787; Required: 10; Open postings: 9; First seen: 2020-07-02 - **ElasticSearch** — Layer: data; Postings: 10; Share: 0.0787; Required: 10; Open postings: 7; First seen: 2020-07-07 - **Red Teaming** — Layer: practices; Postings: 10; Share: 0.0787; Required: 10; Open postings: 9; First seen: 2020-07-01 - **Redis** — Layer: data; Postings: 10; Share: 0.0787; Required: 10; Open postings: 8; First seen: 2020-07-02 - **AWS** — Layer: cloud; Postings: 9; Share: 0.0709; Required: 9; Open postings: 8; First seen: 2020-07-02 - **Platform Engineering** — Layer: practices; Postings: 9; Share: 0.0709; Required: 9; Open postings: 8; First seen: 2020-07-30 - **ArgoCD** — Layer: tools; Postings: 8; Share: 0.063; Required: 8; Open postings: 7; First seen: 2020-07-02 - **RAG** — Layer: practices; Postings: 8; Share: 0.063; Required: 8; Open postings: 8; First seen: 2021-10-25 - **Spark** — Layer: cloud; Postings: 8; Share: 0.063; Required: 6; Open postings: 7; First seen: 2021-09-01 - **ClickHouse** — Layer: data; Postings: 7; Share: 0.0551; Required: 7; Open postings: 7; First seen: 2021-08-23 - **GitHub** — Layer: cloud; Postings: 7; Share: 0.0551; Required: 7; Open postings: 5; First seen: 2020-06-17 - **Istio** — Layer: cloud; Postings: 7; Share: 0.0551; Required: 7; Open postings: 6; First seen: 2020-07-02 - **Linux** — Layer: cloud; Postings: 7; Share: 0.0551; Required: 7; Open postings: 6; First seen: 2020-07-20 - **Terraform** — Layer: tools; Postings: 7; Share: 0.0551; Required: 7; Open postings: 6; First seen: 2022-05-18 - **Thanos** — Layer: tools; Postings: 7; Share: 0.0551; Required: 7; Open postings: 6; First seen: 2020-07-02 - **GCP** — Layer: cloud; Postings: 6; Share: 0.0472; Required: 6; Open postings: 5; First seen: 2020-07-21 - **Git** — Layer: tools; Postings: 6; Share: 0.0472; Required: 6; Open postings: 4; First seen: 2020-07-02 - **GitHub Actions** — Layer: cloud; Postings: 6; Share: 0.0472; Required: 6; Open postings: 6; First seen: 2022-05-18 - **Hadoop** — Layer: frameworks; Postings: 6; Share: 0.0472; Required: 6; Open postings: 5; First seen: 2020-07-02 - **Spring Boot** — Layer: frameworks; Postings: 6; Share: 0.0472; Required: 6; Open postings: 6; First seen: 2020-07-02 - **dbt** — Layer: tools; Postings: 6; Share: 0.0472; Required: 6; Open postings: 6; First seen: 2024-12-19 - **AI Agents** — Layer: practices; Postings: 5; Share: 0.0394; Required: 5; Open postings: 3; First seen: 2020-07-01 - **Figma** — Layer: cloud; Postings: 5; Share: 0.0394; Required: 5; Open postings: 3; First seen: 2022-12-01 - **Hibernate** — Layer: frameworks; Postings: 5; Share: 0.0394; Required: 5; Open postings: 3; First seen: 2020-07-02 - **Machine Learning** — Layer: practices; Postings: 5; Share: 0.0394; Required: 5; Open postings: 4; First seen: 2024-09-11 - **Ansible** — Layer: tools; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2020-07-20 - **Azure** — Layer: cloud; Postings: 4; Share: 0.0315; Required: 4; Open postings: 3; First seen: 2020-07-21 - **Falco** — Layer: tools; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2026-10-28 - **Flink** — Layer: frameworks; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2021-08-23 - **Milvus** — Layer: data; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2026-06-30 - **Model Context Protocol** — Layer: tools; Postings: 4; Share: 0.0315; Required: 4; Open postings: 3; First seen: 2022-01-05 - **Spring Cloud** — Layer: frameworks; Postings: 4; Share: 0.0315; Required: 4; Open postings: 3; First seen: 2020-07-02 - **Triton** — Layer: frameworks; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2024-09-11 - **Wazuh** — Layer: cloud; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2026-10-28 - **vLLM** — Layer: cloud; Postings: 4; Share: 0.0315; Required: 4; Open postings: 4; First seen: 2023-02-02 - **Adobe After Effects** — Layer: tools; Postings: 3; Share: 0.0236; Required: 3; Open postings: 1; First seen: 2026-08-21 - **Adobe Photoshop** — Layer: tools; Postings: 3; Share: 0.0236; Required: 3; Open postings: 1; First seen: 2023-04-20 - **Cilium** — Layer: tools; Postings: 3; Share: 0.0236; Required: 3; Open postings: 2; First seen: 2026-09-29 - **Claude Code** — Layer: tools; Postings: 3; Share: 0.0236; Required: 3; Open postings: 3; First seen: 2022-06-16 - **Docker** — Layer: tools; Postings: 3; Share: 0.0236; Required: 3; Open postings: 3; First seen: 2020-07-02 - … 145 more in the JSON form ## Changes ### First appeared - **Falco** — First seen: 2026-10-28 - **Wazuh** — First seen: 2026-10-28 - **OCR** — First seen: 2026-10-16 - **Cilium** — First seen: 2026-09-29 - **Text-to-Speech** — First seen: 2026-09-21 - **Speech Recognition** — First seen: 2026-09-21 - **gRPC** — First seen: 2026-09-21 - **eBPF** — First seen: 2026-09-03 ### Rising - **Istio** — Share from: 0; Share to: 8 - **Thanos** — Share from: 0; Share to: 8 - **Figma** — Share from: 0; Share to: 7 - **MySQL** — Share from: 4; Share to: 10 - **CI/CD** — Share from: 4; Share to: 10 - **ArgoCD** — Share from: 4; Share to: 10 - **Git** — Share from: 0; Share to: 5 - **Spring Boot** — Share from: 0; Share to: 5 ### Falling - **LLM** — Share from: 36; Share to: 22 - **ClickHouse** — Share from: 16; Share to: 4 - **AI Agents** — Share from: 12; Share to: 0 - **Machine Learning** — Share from: 12; Share to: 1 - **Java** — Share from: 16; Share to: 8 ## Similar stacks - [Xiaohongshu](https://alion.io/company/xiaohongshu/technologies) — Shared technologies: 142 - [Coupang](https://alion.io/company/coupang/technologies) — Shared technologies: 172 - [DiDi Global](https://alion.io/company/didi-global/technologies) — Shared technologies: 128 - [eBay](https://alion.io/company/ebay/technologies) — Shared technologies: 142 - [Yandex](https://alion.io/company/yandex/technologies) — Shared technologies: 153 - [Sarvam AI](https://alion.io/company/sarvam-ai/technologies) — Shared technologies: 132 - [ServiceNow](https://alion.io/company/servicenow/technologies) — Shared technologies: 171 - [Zscaler](https://alion.io/company/zscaler/technologies) — Shared technologies: 158 --- [Page](https://alion.io/company/viva-republica/technologies) · [JSON](https://alion.io/company/viva-republica/technologies.json) Source: Alion (alion.io), 2026-11-13. 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