Senior Software Engineer - London
Posted Oct 4, 2026 · 13h ago
- Employment
- Full Time
- Seniority
- Senior
- Occupation
- Software Developer
- Category
- Software Development
- Listing language
- English
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About H: When we released Holo4 on 28 September, we published every trajectory behind its public benchmark scores at trajectories.hcompany.ai .
For OSWorld that's 369 desktop tasks, each run 3 times, with the steps, tokens and time of every attempt.
This role builds and runs the evaluation framework that produces runs like these.
H builds computer-use agents and the models behind them.
Developers use them through a managed API , and our forward deployed engineers take them into enterprise workf…
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