Machine Learning Engineer

About Neutreeno

We built Neutreeno to transform business at speed and scale by revolutionising decarbonisation. Our innovative software, backed by cutting-edge science from the University of Cambridge, transforms how companies understand and reduce their emissions. By leveraging decades of research in resource and emissions flow data mapping, we identify the most impactful areas for emissions reduction, enabling companies to make strategic, data-driven decisions.

Working alongside leading sustainability scientists from the IPCC and IEA who shape international climate policy, we're creating a new paradigm in decarbonisation technology. Our approach has already been adopted by the world's largest companies. With our recent $5M seed round led by US investors, and coverage in ESGPost, YahooFinance, BusinessWeekly, and a nomination by Cambridge Institute for Sustainability Leadership for the 2025 Earthshot Prize, we're ready to grow.

Join us in revolutionising decarbonisation and tapping into the $130B addressable market!

The Role

As a Machine Learning Engineer at Neutreeno, you'll lead the development of intelligent systems that power our emissions and decarbonisation capabilities. Working at the cutting edge of machine learning and sustainability, you'll build platforms that transform complex data into actionable insights for thousands of companies globally. Your innovations will directly power breakthrough solutions that identify critical decarbonisation opportunities across entire industries and supply chains. You'll push the boundaries of what's possible with AI-driven climate tech developing advanced models that process vast amounts of unstructured data to reveal hidden patterns in global emissions. You'll collaborate with our climate science team to translate cutting-edge research into production-ready ML solutions, leveraging our graph-structured emissions models to understand complex supply chain relationships. You'll engage with technical stakeholders across industries, building scalable ML systems that drive decarbonisation at global scale.

Key Responsibilities

Use and fine-tune out-of-the-box models for matching textual and quantitative data to entries in our emissions database with uncertainty estimation

Develop our emission intensity inference model using deep learning techniques that leverage uncertainty

Advise on the out-of-the-box Large Language Models to extract data from a variety of sources

Advise on construction of data-pipelines to integrate industrial and economic data into our database and to generate training data for our models

Collaborate with climate mitigation scientists and process engineers to translate domain expertise into scalable ML solutions

Evaluate and recommend appropriate ML implementations by balancing upfront setup costs and effort against business value and company goals

Guide the integration of out-of-the-box AI tools to enhance internal operations and support front-end use cases

Stay up-to-date with the latest ML theory, techniques, and out-of-the-box tools

Contribute to technical documentation and present ML methodology insights to both internal teams and external stakeholders

Required Qualifications

Master's or PhD in Computer Science, Machine Learning, Data Science, or related field

Good foundational understanding and subsequent practical application of ML techniques, preferably NLPs, LLMs, Bayesian Optimisation and MCMCs

Strong proficiency in Python and ML frameworks and tools (e.g. PyTorch, TensorFlow, JAX, Hugging Face, vLLM, MCP, prompt engineering)

Excellent communication skills and ability to explain ML concepts to non-technical stakeholders

Ability to work effectively in multi-disciplinary teams, collaborating across engineering, product, and commercial functions to translate requirements into integrated technical solutions

Preferred Qualifications

Experience working on large codebase with multiple collaborators via version control tools (i.e. git, GitHub etc.)

Experience with data scrapping (e.g. Beautiful Soup), extraction (e.g. LLMs) and cleaning.

Knowledge with uncertainty quantification and probabilistic modelling approaches such as Bayesian optimisation

Experience with cloud deployment pipelines (Docker, cloud platforms, AWS, CI/CD)

Familiarity with sustainability or environmental data standards and frameworks

What We Offer

Opportunity to make a significant impact on global decarbonisation efforts

Join a collaborative and innovative work environment at the Cambridge Institute for Sustainability Leadership. Network with leading startups and industry climate professionals.

Learning from world-leading mitigation climate scientists

A hybrid work model (three days a week in our Cambridge office) that fosters both teamwork and individual flexibility

£60,000 – 85,000 base DOE

Stock option plan

Incredible professional development and growth opportunities as we grow quickly

Company pension

Leading private health insurance

Great on-site amenities (unlimited coffee, weekly events with global sustainability leaders...)

Work from anywhere for up to two weeks per year

If you're passionate about leveraging your machine learning skills to make a tangible impact on global decarbonisation efforts, we want to hear from you!

To apply, please send your resume here explaining your interest in the role and your relevant experience.

Neutreeno is an equal opportunity employer committed to creating an inclusive workplace.

Portfolio Careers