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Program Evolution and Optimization Engineer

United Kingdom
Visa Sponsorship Relocation
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Develop and optimize an LLM-guided program evolution loop that iteratively generates, evaluates, and improves programs across heterogeneous AI workloads. Design search strategies balancing exploration, exploitation, diversity, and sample efficiency. Build continuous benchmarks to measure optimiser performance and turn the system into reliable internal infrastructure.

Key Highlights
LLM-guided program evolution and optimisation loop
Search strategies for heterogeneous workloads and accelerators
Continuous benchmarking and empirical measurement
Turning experimental systems into reusable internal tools

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Key Responsibilities
Develop the core program evolution loop improving candidate generation, evaluation, selection, and evolution
Design search strategies balancing exploration, exploitation, diversity, and sample efficiency
Build continuous benchmarks measuring optimiser performance across internal workloads and standalone problems
Turn the system into reliable internal infrastructure for optimising new verifiable domains

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Technical Skills Required
optimization and search engineering instincts machine learning

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Benefits & Perks
Competitive Salary
Equity & Ownership
Private healthcare
Visa sponsorship
Relocation benefits

Job Description

We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity.Callosum is the Intelligent Systems Company. We believe the next generation of AI won't be defined by any single model or chip, but by intelligent systems in which hardware and intelligence co-evolve. We are building the infrastructure that unifies heterogeneous compute across the full stack. This opens a new axis of scaling intelligence: a dynamic system that tailors itself to what each workload actually needs, whether that's speed, cost, precision, or whatever unit comes next.
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Job Overview
Posted Aug 20, 2026
Employment Full-time
Experience Not Applicable
Location United Kingdom
Category Programming
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