Evolutionary Optimisation - Member of Technical Staff

The role

You will own the program evolution and optimisation loop by developing an LLM-guided search system. This system will iteratively generate, evaluate, and improve programs across kernels, inference runtimes, scheduling, and scaling policies.

What you will do

• Develop the core program evolution loop
• Design search strategies that balance exploration, exploitation, diversity, and sample efficiency
• Build continuous benchmarks to measure the optimiser
• Turn the system into reliable internal infrastructure

Required qualifications

• Strong foundations in optimisation and search, including familiarity with evolutionary, stochastic, combinatorial, or other non-gradient-based methods
• Ability to reason about search itself i.e. exploration versus exploitation, diversity, pruning, objective design, and when different optimisation strategies are appropriate
• Strong engineering instincts, with experience turning experimental systems into reusable, measurable, and reliable software
• A demonstrable tendency to draw from techniques across optimisation, algorithms, and machine learning

Benefits

• Competitive Salary, determined by skills and experience
• Equity & Ownership
• Private healthcare
• Visa sponsorship
• Relocation benefits

Before you apply

• We offer Visa sponsorship and relocation benefits to hire the best in the world

About the company

Callosum is the Intelligent Systems Company building infrastructure that unifies heterogeneous compute across the full stack. They are engineers and scientists based in London.