Linear

devtools · 51-200 people · snapshot 2026-07-10 · unverified · linear.app

Read the full teardown: What Linear actually runs

Current stack

Category	Tool	Since	Confidence	Source
`language`	TypeScriptNamed as the base of Linear's stack from the founding era through the current careers-page description.	2019	confirmed	interview
`frontend`	React	2019	confirmed	interview
	MobXReactive object-graph layer for the sync engine's in-memory client store (observable models, granular re-renders).	2019	confirmed	social
	styled-components	—	confirmed	job-post
`backend-framework`	Node.js	2019	confirmed	interview
`backend-framework`	GraphQLAPI layer, with an accompanying SDK.	2019	confirmed	interview
`database`	PostgreSQLSystem of record; sync bootstrap responses include a _metadata_ payload showing "method":"postgres", corroborating Postgres behind the sync layer (inferred detail).	2019	confirmed	interview
`queue`	RedisUsed for queuing; named in Artman's founding-stack description.	2019	confirmed	interview
`queue`	TemporalNot 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
`hosting`	Google Cloud PlatformChosen over AWS for perceived cost-for-performance and a better UI.	2019	confirmed	interview
`hosting`	KubernetesAdopted deliberately at a 2-engineer, 1-designer team size to avoid a later forced migration.	2019	confirmed	interview
`internal-tools`	GitHub	—	confirmed	job-post
	Slack	—	confirmed	job-post
	Notion	—	confirmed	job-post
`ci-cd`	GitHub ActionsNot 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

Migrated 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.

Sources

Methodology: research assisted by AI agents, verified and edited by a human. Spot an error? Suggest a correction via pull request or email us. Work at Linear? Verify your record and get the ✓ badge.