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Senior Full-Stack Engineer



Posted over 30 days ago...

Join a revolution in sustainable logistics at Pledge and be at the forefront of combating climate change with cutting-edge technology.


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No salary declared 😔

icon Location

London, United Kingdom

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Hybrid (In-person ~3 day / week)- London United Kingdom

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Expires at anytime

Pledge is at the vanguard of sustainable transport and logistics, offering leaders in the industry a comprehensive software solution to measure, reduce, and offset carbon emissions. Backed by a team with a track record of scaling businesses in complex markets, Pledge combines accessibility, transparency, and credibility to facilitate impactful climate action. Fresh from securing $10 million in Series A funding, Pledge is on a mission to drive businesses toward net zero emissions with its self-serve product designed for quick and effective deployment.

Role Summary:

  • Play a pivotal role in the engineering team, contributing to the full software development life cycle.
  • Collaborate with founders and cross-functional teams to ideate and implement software solutions.
  • Design and develop scalable software, secure APIs, and end-to-end solutions.
  • Write clean, functional code and maintain high-quality documentation.
  • Collaborate with data scientists to enhance software performance.
  • Champion development best practices across all stages of the development lifecycle.

Role Requirements:

  • Demonstrable experience as a full-stack developer, preferably with B2B SaaS products.
  • Proficiency in Node.JS, TypeScript, Terraform, React.JS, GraphQL, PostgreSQL, ElasticSearch, AWS, Git, Docker, and CI/CD pipelines.
  • Understanding of serverless architecture such as AWS Lambda.
  • Experience in a large tech company or high-growth startup.
  • Commitment to Pledge's mission and a passion for addressing climate change.
  • Self-motivated with excellent organizational and project management skills.


  • Ownership through generous stock options.
  • Competitive salary and 25 days holiday, increasing annually.
  • Pension plan and private health insurance with comprehensive support.
  • Cycle to work scheme and engaging team socials.


Pledge empowers transport and logistics leaders to reach their sustainability goals through its accredited and integrated software. With a focus on accessibility and transparency, Pledge allows users to start measuring, reducing and removing their carbon emissions in minutes with its self-serve product, giving customers the confidence they need to take credible and impactful climate action in logistics supply chains.

Founded by early Revolut employees, David de Picciotto and Thomas Lucas, and Freetrade’s co-founder and former CTO, André Mohamed, Pledge's team draws on its experience building scalable businesses in the regulated and complex payments and capital markets industries and applies it to help decarbonise some of the highest emitting industries on the planet.

Pledge recently secured $10 million in Series A funding to continue building best-in-class products to drive its mission to help businesses reach net zero emissions.


You'll be a core team member of Pledge's engineering team and will play a defining role in the building and the quality of our products. You’ll work directly with the founders and be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

This role is NOT for you if:

  • You are looking for a 9 to 5 job.

  • You have a low risk appetite and favour predictability over the uncertainty & high intensity environment of a startup.

  • You want a fully remote job and are not excited about being in an office with your team for minimum 3 days a week.


  • Defining the design and creation of scalable software

  • Working as part of a cross-functional agile team including engineers, product design, product management and other stakeholders in order to ideate software solutions

  • Designing and developing end-to-end solutions

  • Designing and developing modern, secure and reliable internal and public APIs

  • Writing clean, documented and functional code

  • Testing software to ensure responsiveness and efficiency

  • Troubleshooting, debugging and upgrading software

  • Writing technical documentation

  • Working with data scientists and analysts to improve software

  • Be an advocate of end-to-end development best practices (e.g. coding, testing, deployment, maintenance).


  • Proven experience as a full-stack developer, ideally working on B2B SaaS products and APIs

  • Working knowledge of various tools, open-source technologies and common stacks

  • Knowledge and experience of industry best practices and tools

  • Experience developing web based applications

  • Experience with the stack used at Pledge:, Node.JS, TypeScript, Terraform, React.JS, GraphQL, PostgreSQL, ElasticSearch, AWS

  • Experience with Git, Docker and CI/CD pipelines

  • Experience with Cloud provider and Infrastructure as code

  • Experience with serverless architecture, e.g. AWS Lambda

  • Worked at a large tech company or high growth startup


  • You share Pledge’s mission to enable businesses to take action on their climate impact

  • An appetite for technical and technological challenges

  • Staying abreast of developments in web applications and programming languages

  • Awareness of Development and Agile principles

  • You can work autonomously and take ownership with a high degree of integrity

  • Excellent organisational and time management skills, and the ability to work on multiple projects at the same time

  • You operate best without lots of bureaucracy

  • You approach work in a logical way and operate from first principles

  • You have an obsession for solving customer problems and get excited about spending time with users of your products.


  • Generous stock options - we are all owners of Pledge

  • Competitive salary

  • 25 days holiday (excl. bank holidays) increasing by 1 day each year of employment

  • Pension plan

  • Private health insurance (You’ll have full access to private online GP appointments, mental health support, and a Care Hub)

  • Cycle to work scheme

  • Regular team socials


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