Senior FullStack Engineer

Salary
£400 - Per Day
Location
London, - None Specified -
Type
Contract
Workplace
Remote
Published
Aug 5, 2025
Ref
162846
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We are seeking a highly skilled Senior FullStack Engineer with a passion for Climate Tech to join on an initial 12-month contract. This role is fully remote within the EU and offers a competitive daily rate of £400–£425, outside IR35.

As a Senior FullStack Engineer, you will work in a fast-paced, mission-driven startup environment focused on building scalable digital technologies that address real-world climate challenges. You will be part of a collaborative engineering team where you will take ownership of features from concept to implementation, contributing across the stack with an emphasis on backend development (80/20 backend/frontend split).

Key Responsibilities:

  • Design, build and maintain robust backend services primarily in Node.js and TypeScript
  • Develop and maintain frontend features using React to support user-facing applications
  • Work with AWS infrastructure to deploy and manage scalable applications
  • Optimise data storage and querying with SQL databases
  • Contribute to architectural discussions and technical decision-making
  • Collaborate closely with cross-functional teams, including Product and Design
  • Write clean, maintainable, and testable code, following best practices
  • Mentor junior developers and provide technical guidance within the team

Requirements:

  • Extensive experience in JavaScript/TypeScript and Node.js
  • Strong working knowledge of React and frontend development practices
  • Experience designing and delivering RESTful APIs
  • Proficiency with AWS services and cloud architecture
  • Excellent SQL skills and knowledge of relational databases
  • Comfortable working in Agile/Scrum methodologies
  • Experience in delivering high-quality, scalable software solutions
  • Excellent communication skills and ability to work remotely with a distributed team
  • Eligibility to work in the EU with flexibility for remote working

This is an opportunity to play a vital role in a company tackling the climate crisis using technology. If you are a proactive engineer who thrives in dynamic, purpose-led teams and enjoys solving meaningful problems, we’d love to hear from you.

Contract Details:
Duration: 12 months
Location: Fully Remote (EU)
Rate: £400–£425/day
Outside IR35

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