Senior Full Stack Software Engineer

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Senior Full Stack Software Engineer Salary Not Disclosed Company Description Neutreeno is a $5M seed-funded climate tech startup spun out of the University of Cambridge that builds an emissions-to-performance platform for global enterprises like Sony, Danone, and NetApp. Job Description Join Neutreeno to build high-impact software that transforms messy supply chain data into actionable decarbonisation insights. As a senior full-stack engineer, you will own features end-to-end using React, Node.js, and Python. You'll work at the intersection of climate science and AI-native engineering to help the world's largest companies achieve real progress toward net-zero targets. Location Cambridge, UK Why this role is remarkable Work on a critical global challenge at a startup spun out of the University of Cambridge’s Department of Engineering with 200%+ YoY growth.Join a $5M seed-funded team backed by world-class climate scientists and serving enterprise giants like Danone, Sony, and NetApp.Embrace an AI-first engineering culture that prioritizes agentic workflows, high autonomy, and the use of tools like Claude Code and Cursor. What You Will Do Build responsive React/TypeScript UIs and robust Node.js/Python backend services to make complex emissions data simple and intuitive for global operations.Design and scale cloud-native AWS infrastructure and ingestion pipelines capable of handling heterogeneous data from massive global supply chains.Partner with product and leadership to shape the technical roadmap, championing AI-native development practices and shipping features from concept to production. The ideal candidate Offers 7+ years of professional software engineering experience with deep proficiency in React, TypeScript, Node.js, and AWS environments.Possesses a proven track record of shipping high-quality software at pace within early-stage startups and thrives in high-ownership, autonomous roles.Uses AI coding tools and agentic workflows daily as a core force-multiplier and has a genuine interest in the climate tech or deep-tech domains. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you.Jill is the AI recruiter working for the company. She recruits from Jack's network.If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.