Product Engineer

Cusp AI Ltd

Job Overview

Location

London, UK

Job Type

Full-time

Full Job Description

📋 Description

• Lead the inception and development of CuspAI’s internal application suite from scratch, treating all tools as first-class products with a focus on usability, scalability, and long-term maintainability.
• Collaborate directly with the VP of Product to translate high-level research needs into clear technical roadmaps and intuitive software solutions that empower world-class AI and materials science teams.
• Own the end-to-end lifecycle of internal applications, including architecture design, backend development, frontend deployment, and iterative improvement based on user feedback.
• Design and build robust backend services in Python using modern web frameworks (FastAPI, Django, or Flask) to interface with core AI and research engines, integrating disparate workflows into a unified, high-performance internal platform.
• Develop clean, responsive, and intuitive user interfaces using Node.js and modern frontend frameworks (React, Vue, or TypeScript) to enable researchers to interact effectively with complex datasets and reduce cognitive load.
• Partner with the Data Engineering team to ensure seamless ingestion, processing, and visualization of complex, multidimensional scientific data within internal applications.
• Work closely with AI Researchers and Data Engineers to deeply understand their daily tasks, pain points, and workflows, and build tools that directly enhance their productivity and discovery capabilities.
• Ensure all internal tools align with the company’s overall infrastructure standards, security protocols, and engineering best practices across the platform.
• Scale the internal application ecosystem to support increasingly complex interdisciplinary data flows as the company’s materials search engine evolves, with potential future involvement in external-facing interfaces.
• Operate as a “builder” in a greenfield environment, making independent architectural decisions and prioritizing product quality over technical shortcuts.
• Maintain a product-focused mindset by proactively identifying opportunities to improve user experience, streamline workflows, and remove friction for technical end-users.
• Contribute to a collaborative, interdisciplinary team culture that bridges AI research, computational chemistry, and experimental science, with shared ownership of mission-driven outcomes.
• Adapt to evolving priorities in a rapidly growing startup environment, where early-stage decision-making has direct and measurable impact on scientific progress.
• Participate in office-based collaboration three days per week at CuspAI’s London, Cambridge, Amsterdam, or Berlin locations, with regular travel required for cross-team alignment and project work.

🎯 Requirements

• 4+ years of professional experience in full-stack software engineering with a proven track record of building and maintaining production-grade applications
• Strong backend expertise in Python and modern web frameworks (e.g., FastAPI, Django, Flask)
• Proficiency in Node.js and modern frontend frameworks (e.g., React, Vue, TypeScript) with a keen eye for UI/UX best practices
• Demonstrated ability to lead greenfield projects and make independent architectural decisions from scratch
• Product-focused mindset—actively thinking about user needs and workflow improvements, not just writing code
• Genuine excitement for enabling scientific discovery, even without a background in materials science, chemistry, or sustainability

🏖️ Benefits

• Competitive salary with equity in CuspAI
• 28 days holiday (DE, NL, UK) or 21 days holiday (JP, SG, US), plus local public holidays
• Gold standard parental leave: 26 weeks (primary caregiver) and 12 weeks (secondary caregiver) at full pay
• Professional development budget for career growth and skill enhancement
• Opportunity to solve meaningful problems with direct impact on sustainability, climate, and materials science breakthroughs
• True interdisciplinary teamwork with world-class researchers and engineers in AI, chemistry, and experimental science

Skills & Technologies

Python

JavaScript

TypeScript

React

Vue.js

Onsite

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Cusp AI Ltd

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About Cusp AI Ltd

Cusp AI is a Cambridge-based startup applying generative artificial intelligence and deep learning to the discovery and design of next-generation materials for carbon capture, hydrogen storage and other clean-energy applications. The company combines physics-informed models, molecular simulation and high-throughput cloud computing to predict and optimize porous frameworks such as metal-organic frameworks and covalent organic frameworks, dramatically reducing the time and cost needed to identify candidates for scalable carbon dioxide removal. Founded in 2023 by ex-Google researchers, Cusp AI collaborates with national laboratories and industrial partners to translate AI-generated molecules into pilot-scale demonstrations.

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