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Senior Software Engineer, Model Integration

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Cohere

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

Our mission is to scale intelligence to serve humanity. We’re training and deploying frontier models for developers and enterprises who are building AI systems to power magical experiences like content generation, semantic search, RAG, and agents. We believe that our work is instrumental to the widespread adoption of AI. North is Cohere’s cutting-edge AI workspace platform, designed to revolutionise how enterprises use AI. It offers a secure, customisable environment that enables companies to deploy AI while maintaining control over sensitive data. North integrates seamlessly with existing workflows, providing a trusted platform that connects AI agents with workplace tools and applications.

Job Responsibility:

  • Architect and implement robust integrations for large language models into the North platform, ensuring seamless scalability and performance
  • Collaborate with modelling teams to refine LLM performance, reduce latency, and improve accuracy through iterative testing and tuning
  • Develop and maintain tools for analysing and monitoring model performance, enabling data-driven improvements
  • Take end-to-end ownership of features — from initial design and planning, through implementation, testing, and delivery
  • Collaborate closely across teams, maintaining high standards for communication, documentation, and testing

Requirements:

  • Have built, shipped & maintained production systems around LLMs, including integration, prompt management, and performance analysis
  • Experience owning complex features from design to deployment, with a focus on scalability and maintainability
  • Ability to work closely with researchers, engineers, and product teams to translate insights into actionable improvements
  • Have strong coding abilities and are comfortable working across the stack
  • Take a customer-focused, product-minded approach to building software, prioritising outcomes and impact
  • Thrive in fast-paced environments and can stay focused as priorities and objectives evolve
What we offer:
  • An open and inclusive culture and work environment
  • Work closely with a team on the cutting edge of AI research
  • Weekly lunch stipend, in-office lunches & snacks
  • Full health and dental benefits, including a separate budget to take care of your mental health
  • 100% Parental Leave top-up for up to 6 months
  • Personal enrichment benefits towards arts and culture, fitness and well-being, quality time, and workspace improvement
  • Remote-flexible, offices in Toronto, New York, San Francisco, London and Paris, as well as a co-working stipend
  • 6 weeks of vacation (30 working days!)

Additional Information:

Job Posted:
February 20, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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