Source: https://www.thetechstack.com/stacks/linear Author: Not specified Author profile: Not specified Editor: Kyle Brierley Editor profile: https://www.thetechstack.com/authors/kyle-brierley Publisher: TheTechStack (https://www.thetechstack.com) Published: Not specified Updated: Not specified Suggested citation: Edited by [Kyle Brierley](https://www.thetechstack.com/authors/kyle-brierley). [Linear stack](https://www.thetechstack.com/stacks/linear). TheTechStack. Retain the source qualifications. Cite the original article and link the credited author profile where available. An editor is not necessarily the author. [← Stack register](https://www.thetechstack.com/stacks) Research snapshot / 2026-07-10 # Linear [linear.app ↗](https://linear.app/) devtools51-200 peopleResearch record · not company verified Editorial responsibility: [Kyle Brierley](https://www.thetechstack.com/authors/kyle-brierley) · TheTechStack. Original sources are credited below. **Related teardown**[What Linear actually runs →](https://www.thetechstack.com/teardowns/linear) Current tools / 15 ## Documented stack Source, access date, and confidence stay attached to each row. **Documented snapshot: 2026-07-10.** This describes the record’s stated observation date, not a live inventory. **Company verification:** The company has not verified this record. Individual claims can still cite direct company statements. What the confidence labels and dates mean - **Confirmed:** the record attributes the claim to a company statement. This is not independent proof of current deployment. - **Inferred:** the record draws a conclusion from technical evidence. - **Reported:** the record attributes the claim to a third party. “Source accessed” is the date the researcher recorded visiting the source. It is not the source’s publication date or a new verification of the company’s stack. Publication dates and deployment scope are not consistently recorded in this dataset. A tool listing does not establish company-wide adoption, internal permissions, security controls, or suitability for your team. Check the source and its scope before using a record in a purchasing decision. Current tools in the Linear stack | Category | Tool | Since | Confidence | Evidence | | --- | --- | --- | --- | --- | | `language` | **TypeScript**Named as the base of Linear's stack from the founding era through the current careers-page description. | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `frontend` | **React** | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **MobX**Reactive object-graph layer for the sync engine's in-memory client store (observable models, granular re-renders). | 2019 | confirmed · | [social ↗](https://marknotfound.com/posts/reverse-engineering-linears-sync-magic/)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **styled-components** | — | confirmed · | [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `backend-framework` | **Node.js** | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **GraphQL**API layer, with an accompanying SDK. | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `database` | **PostgreSQL**System of record; sync bootstrap responses include a \_metadata\_ payload showing "method":"postgres", corroborating Postgres behind the sync layer (inferred detail). | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `queue` | **Redis**Used for queuing; named in Artman's founding-stack description. | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **Temporal**Not present in the 2022 stack description; new by the 2026 careers page, where it appears both as a general backend component and as the engine behind an "agentic workload system" at production scale — likely durable-workflow orchestration for Linear's 2025 AI-agent features. Exact adoption date not stated. | — | confirmed · | [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `hosting` | **Google Cloud Platform**Chosen over AWS for perceived cost-for-performance and a better UI. | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **Kubernetes**Adopted deliberately at a 2-engineer, 1-designer team size to avoid a later forced migration. | 2019 | confirmed · | [interview ↗](https://newsletter.pragmaticengineer.com/p/linear)Accessed 2026-07-10 [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `internal-tools` | **GitHub** | — | confirmed · | [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **Slack** | — | confirmed · | [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | **Notion** | — | confirmed · | [job-post ↗](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32)Accessed 2026-07-10 | | `ci-cd` | **GitHub Actions**Not explicitly named by Linear; inferred from a public linear-release-action repo (GitHub Action, Shell) in Linear's GitHub org, suggesting its use for release automation. | — | inferred · | [code ↗](https://github.com/linear)Accessed 2026-07-10 | **Record boundary** This is a dated research snapshot, not a live inventory. Confidence describes the claim; company verification is tracked separately. **Source set** - [https://newsletter.pragmaticengineer.com/p/linear](https://newsletter.pragmaticengineer.com/p/linear) - [https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32](https://linear.app/careers/cd5ae036-0223-427a-b038-ba16ef9dcb32) - [https://getlatka.com/companies/linear.app](https://getlatka.com/companies/linear.app) - [https://sacra.com/c/linear/](https://sacra.com/c/linear/) - [https://marknotfound.com/posts/reverse-engineering-linears-sync-magic/](https://marknotfound.com/posts/reverse-engineering-linears-sync-magic/) - [https://linear.app/now/scaling-the-linear-sync-engine](https://linear.app/now/scaling-the-linear-sync-engine) - [https://github.com/wzhudev/reverse-linear-sync-engine](https://github.com/wzhudev/reverse-linear-sync-engine) - [https://shivekkhurana.com/blog/sync-engines/](https://shivekkhurana.com/blog/sync-engines/) - [https://github.com/linear](https://github.com/linear) Movement ## What changed ### Moved away from - **MongoDB**database · Confirmed in place for caching scenarios as of the 2022 Pragmatic Engineer interview, but absent from Linear's own 2026 careers-page "Our tech" list. Status of 'previous' is inferred from this list comparison, not an explicit migration statement from Linear — could be an oversight in the careers copy rather than a true retirement; no public writeup found explaining a removal or replacement. Methodology: research assisted by AI agents, verified and edited by a human. [Suggest a correction via pull request](https://github.com/KyleBrierley/thetechstack-data/blob/main/records/linear.json) or [email us](mailto:kyle@thetechstack.com).