Software Developer jobs in United Kingdom

Who are we?

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. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. We like to work hard and move fast to do what’s best for our customers. Cohere is a team of researchers, engineers, designers, and more, who are passionate about their craft. Each person is one of the best in the world at what they do. We believe that a diverse range of perspectives is a requirement for building great products. Join us on our mission and shape the future!

About the Company:

Cohere’s team partners with UK public sector organisations to unlock transformative value through secure, ethical deployment of Generative AI (GenAI) solutions. We work collaboratively with government agencies, NHS trusts, and local authorities to address complex societal challenges while maintaining the highest standards of data security and compliance.

As a Software Engineer (SWE) on our Applied ML team you will work directly with UK public sector customers to quickly understand their greatest problems and design and implement solutions using Cohere's stack. In this role, you’ll apply your problem-solving ability, creativity, and technical skills to close the last-mile gap in Enterprise AI adoption. You’ll be able to deliver products like early startup CTOs/CEOs do and disrupt some of the most important industries and institutions globally!

We seek strong SWE's with deep UK public sector expertise to lead GenAI implementation projects. This role requires active SC Clearance (with willingness to obtain DV Clearance if needed).

• Own and build large new areas within our product.
• Work across the backend, frontend, and interact with Large Language Models.
• Experiment at a high velocity and level of quality to engage our customers and eventually deliver solutions that exceed their expectations.
• Work across the entire product lifecycle from conceptualisation through production.

• Mandatory: Active SC Clearance (DV Clearance preferred)
• UK citizenship with 8+ years in public sector technology roles
• Proven experience deploying AI/ML solutions in secure government environments
• Deep understanding of UK public sector ecosystems (Central/Local Government, NHS, Emergency Services)
• Familiarity with government cloud strategies (e.g., Crown Hosting, G-Cloud, MODNET) and data security frameworks
• Experience building LLM applications using tools such as Langchain.
• Experience in Information Retrieval systems for document question answering.
• Experience in day-to-day NLP for the industry using Python and related toolchains (SpaCy, HuggingFace, NLTK, etc.).

If some of the above doesn’t line up perfectly with your experience, we still encourage you to apply!

We value and celebrate diversity and strive to create an inclusive work environment for all. We welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, we will work together to meet your needs.

• 🤝 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!)