Callosum

Evolutionary Optimisation - Member of Technical Staff

Callosum
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16 days ago
London, United KingdomSenior
H1B sponsor

Responsibilities

  • Develop the core program evolution loop for generating, evaluating, selecting, and evolving candidates over long optimisation runs.
  • Design search strategies that balance exploration, exploitation, diversity, and sample efficiency across irregular optimisation spaces.
  • Build continuous benchmarks to measure optimiser performance across internal workloads and standalone problems.
  • Improve the optimiser through empirical measurement and make regressions visible.
  • Turn the optimisation system into reliable, reusable internal infrastructure for new verifiable domains.

Requirements

  • Strong foundations in optimisation and search, including evolutionary, stochastic, combinatorial, or other non-gradient-based methods.
  • Ability to reason about exploration versus exploitation, diversity, pruning, objective design, and the suitability of different optimisation strategies.
  • Strong engineering instincts and experience turning experimental systems into reusable, measurable, and reliable software.
  • Demonstrated ability to draw on techniques across optimisation, algorithms, and machine learning rather than relying on LLMs for every problem.

Benefits

  • Competitive salary determined by skills and experience.
  • Equity and ownership.
  • Private healthcare.
  • Visa sponsorship and relocation benefits.
  • In-person work at the company’s London office with provided tools, workspace, and setup.

Categories

AI Research
Callosum

About Callosum

11-50 employees
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