Our Mission

The world’s rate of decarbonisation needs to be 10x faster. The largest, most complex organisations contribute an outsized amount to the problem but lack the trustworthy, decision-grade data they need to reduce their environmental impact (and, while very important, decoding how to comply with ever-increasing reporting standards takes precious time away from sustainability leaders who need to be driving change in their organisations).

Minimum solves this challenge by structuring and unifying the world’s environmental data. We are the Environmental Data Layer which large, complex businesses use to transform their existing data into high-quality, high-trust environmental data at scale. Unlike others in the space, we’re ruthlessly focused on solving data acquisition, processing, and calculation challenges.

Where we’re up to

• We’re a late seed-stage business backed by top-tier investors, including NEA (unannounced), Lakestar (unannounced), Octopus Ventures, Y Combinator, and more.
• Our product is used by a range of large public and private companies, including Volkswagen, UK Power Networks, Games Workshop, Nasdaq (and many more) to streamline their data processes, meet stringent international reporting requirements, and gain valuable insights on how to decarbonise their business.
• Our team is passionate about evolving our product to the next level, ensuring we’re delivering the most value possible to customers as quickly as possible, and scaling up our sales & distribution engine as we serve more and more Enterprise customers.

The Opportunity

• This is an opportunity to contribute to shaping and building up a product and company that is genuinely changing the world and solving real problems for customers. Minimum’s platform is just one small part of solving the climate crisis, but we’re dedicated to driving enormous value through our slice of the overall solution.
• Carbon accounting has been estimated to be a $60B market opportunity. We believe that’s an underestimate. Organisations of all shapes and sizes across the globe are being forced to improve their carbon data to meet increasing reporting and decarbonisation requirements from governments, investors, and customers. Sustainability is no longer a ‘nice-to-have’ for forward-thinking companies; it’s an absolutely essential compliance and commercial imperative for all businesses.
• Our market-leading product is actively delivering value to large Enterprise customers, but in the context of the full scope of what we want to achieve, our work has only just begun. There are opportunities to drive incredible amounts of customer value by doubling down further on what we’ve already built, solving even more pain points, and pursuing closely adjacent opportunities, such as integrating AI into data workflows or enabling automatic acquisition of energy data from the point of consumption.

The Role

As a Senior Frontend Engineer at Minimum, you’ll move beyond pixels and components, you’ll help shape what and why we build, champion intuitive enterprise workflows for non-technical users, and partner in product discovery as much as delivery. Collaborating closely with Product Managers, Designers, domain experts, and fellow Engineers, you’ll iterate quickly, test what works, and own the evolution of both user experience and modern frontend architecture. This is a chance to steer not just how we build, but what our customers experience, how we learn, and how we raise the bar across the team.

You will:

• Collaborate closely with Product Managers and Designers to shape, build, and iterate on user-facing features that address real customer challenges, often working with incomplete information and ambiguity.
• Proactively contribute insights and technical perspective early in the feature lifecycle, informing both discovery and solution design.
• Champion a build/measure/learn approach: ship early, gather real user feedback, and iterate quickly to improve outcomes and usability.
• Build intuitive, scalable, maintainable frontend solutions using React, modern frameworks, and appropriate tooling.
• Ensure high standards in code quality, accessibility, and maintainability through thoughtful testing and peer review.
• Leverage product analytics, user feedback, and experimentation to refine features, valuing user outcomes, not just code delivered.
• Stay current with emerging frontend technologies and AI-driven tools, sharing what you learn and helping the team adopt new approaches where useful.

About You

You’re energised by collaboration, ambiguity, and the drive for meaningful user outcomes. You seek context, not just tickets. You know how to move fast and deliver, but you also care deeply about learning, growing, and bringing others with you. You have high empathy for teammates and for users who don’t live in the code.

You should be someone who:

• Thrives in partnership with product managers and designers to shape, test, and iterate on features.
• Communicates thoughtfully with technical and non-technical stakeholders, engaging productively across the SDLC.
• Enjoys and initiates evidence-driven decision-making, using metrics, user feedback, and your own curiosity to drive improvement.
• Embraces new tools: from AI-driven design and build workflows (e.g., Figma Make, Claude Code, Codex, Cursor) to automated test and deployment.
• Believe the best features and teams are built together, not in silos.

Must-have Skills:

• 5+ years of professional experience in frontend development.
• Strong experience with React.
• Proficiency in TypeScript and modern JavaScript (ES6+).
• Experience working closely with Product Designers to implement high-quality UI.
• Experience with state management (e.g., Redux, React Query) and component-driven architecture.
• A solid understanding of frontend testing strategies (e.g., Jest, React Testing Library, Cypress).
• Confident self-starter who seeks alignment, collaborating effectively with engineers and product teams.

Nice-to-have Skills

• Experience with frontend architecture decisions in a growing startup.
• Familiarity with design systems and component libraries (e.g., Storybook).
• Experience with GraphQL, REST APIs, and data-heavy frontend applications.
• Previous experience working in B2B SaaS or enterprise software.
• Exposure to backend technologies (Python, Django, or similar) for better cross-functional collaboration.
• A passion for or previous exposure to Sustainability / Carbon footprinting concepts.

We're looking for brilliant people. If your experience doesn't quite match all of the points above, but you feel you have a lot to offer the team, we'd love to hear from you.

Compensation, Perks & Benefits

• Competitive salary
• Equity in the form of share options
• Private healthcare
• 25 days holiday + 3 days off between Christmas and New Year + 1 day off in the month of your birthday