Calibre
calibre.agency
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AI Governance & Compliance
AI Evaluation & Observability
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Overview
Calibre is a London company working on trust in autonomous AI systems, helping answer whether such systems are secure, reliable and behaving as intended. It hires product engineers to build its assurance technology for institutions that depend on AI. The company is headquartered in London, United Kingdom.
News
Calibre ebook manager lets you generate AI book covers in a click
Calibre, the open-source ebook manager, now lets you generate AI ebook covers for content in your library, using genre prompts or custom ones.
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Sutra - Read everything. Books and comics.
Sutra is the best way to read your books and comics on iOS. Connect Kavita, Calibre, Komga, or any OPDS server. Panel-aware comics, EPUB auto-scrolling, and sideloading - free.
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Calibre 9.8 finally gave me the AI-powered reading assistant Amazon promised but never delivered
I moved my ebook library away from Amazon, and Calibre's new AI assistant is why I'm staying.
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calibre - New in calibre 9.0
calibre: The one stop solution for all your e-book needs. Comprehensive e-book software.
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Calibre adds AI
Version 8.16.0 of the calibre ebook-management software, released on December 4, includes a
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Tech stack
Technologies named in job postings at Calibre over the last 12 months, by layer, with the share of postings for each.
Technologies in use
6
Postings analysed
1
Stack modernity
79/100AI adopter
Cloud & platforms
GitHub
Developer tools
Claude Code
Cursor
Model Context Protocol
AI & ML
LLM
Practices & domains
Hallucination
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Salary insights
Compensation ranges based on this company's open jobs
Median
$268k
Typical range
$268k
Open positions
1
1
Jobs
Junior
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $268k | $268k |
Highest paying role
Product Engineer
$268k
Normalized to USD per year
Growth
Hiring Momentum
76/100
Scaling fast
Open positions
1
1 opened / 0 closed in 30 days
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
100% ▼
Activity Timeline
Added ISO 42001 to stack
Oct 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
London
London
United Kingdom
HQ
1 open roles 1 posted in 90 days 100% engineering $268k Avg Salary
hires for Backend
Jobs
$107k – $268k per year · In office · Full-Time · 2+ years exp · London
Cursor
Claude Code
Model Context Protocol
LLM
Hallucination
DevOps
GitHub
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