Lead Engineer – £100K (TS + React) – Climate Reporting SaaS Platform

Oliver Bernard; Remote; GBP 70,000 - 90,000; Full time

Job summary

A mission-driven SaaS startup in the UK seeks a Lead Engineer to oversee the development of a climate reporting platform. In this role, you will take ownership of both the front-end and back-end, leveraging your extensive experience with React and TypeScript. As part of this greenfield project, you'll work independently and lead critical technical decisions that contribute to meaningful social impact. This is a unique opportunity to shape a platform that aids organizations in meeting their climate goals, while working closely with product and design teams.

Benefits

Autonomy in technical direction

Impactful work in climate change

Agile and mission-led team

Qualifications

• Six or more years of engineering experience, including in a lead role.
• Deep experience with React and TypeScript in production.
• Strong knowledge of data-driven web applications.

Responsibilities

• Own the engineering delivery across front-end and back-end.
• Make key decisions around technical architecture and implementation.
• Collaborate on integrating cloud infrastructure and data systems.

Skills

React

TypeScript

Cloud environments

CI/CD practices

User experience design

Accessibility principles

Tools

AWS

Cursor

Job description

Lead Engineer – Climate Reporting SaaS Platform - Remote UK

We are working with a small, mission-driven SaaS startup that is building a digital platform to support climate change reporting at scale. They are looking for a Lead Engineer with strong TS, React/Node (ideally Next.js) experience to take full technical ownership of the platform as it evolves and grows. You will get to work with the latest AI tools and will be working heavily with Cursor. Experience or at least a serious interest working this way is a must have.

This is a completely greenfield project and a rare opportunity to lead the development of a meaningful product that directly supports organisations in meeting their climate obligations. You will work with a high level of autonomy, reporting into the CTO and driving technical decisions day to day. The product is already in use and will be the foundation for further growth and expansion.

You’ll collaborate closely with product, design and policy specialists to shape the future of the platform, ensuring it remains robust, user-friendly and compliant with key standards around accessibility and data security.

What You’ll Be Doing:

• Own the engineering delivery across both front-end and back-end of the product
• Make key decisions around technical architecture, tooling and implementation strategy
• Lead the development of structured, form-based interfaces with complex validation and data handling
• Collaborate with internal teams and external partners to integrate with cloud infrastructure and data systems
• Ensure the platform meets accessibility and security best practices
• Translate climate reporting requirements into scalable, user-friendly digital workflows

What They’re Looking For:

• Around six or more years of engineering experience, including time in a lead or senior role
• Deep experience with React and TypeScript in production environments
• Strong knowledge of building structured forms and data-driven web applications
• A desire to be working with the latest AI tools (but not just for the hype)
• Familiarity with cloud environments, ideally AWS, and CI/CD practices
• Solid understanding of accessibility principles and good UX for form-heavy products
• Able to work independently, take initiative and guide product direction from a technical perspective
• Any exposure to sustainability, climate data, or compliance-driven platforms is a bonus, but not required

Why Join:

• Lead the technical direction of a growing SaaS product with genuine social impact
• Join a small, agile and mission-led team where your work has clear purpose
• Work with a high degree of independence, trusted to make decisions and shape the platform

This is a brilliant opportunity for a Senior or Lead Engineer who is looking for a lot of autonomy and the chance to work with the latest tools.