Application Engineer

Location: Hybrid (2 days per week in our Central London office)

Employment Type: Full-Time

Salary Range:
50 - 70k p.a. dependent on experience.
Share options available.

The ideal candidate will have strong hands-on experience with modern web frameworks (ReactJS Python AWS) & APIs as well as a working knowledge with back-end Python.

AI development tooling such as Claude Code and Cursor is encouraged. Our technical tests will be testing candidates both with and without AI support.

This is a full-stack role.

Who are Greenpixie

Greenpixie Ltd is an exciting innovative tech start-up dedicated to measuring and reducing the environmental impact of cloud computing. Our mission is to develop cutting-edge methodologies and tools to accurately quantify cloud emissions driving sustainability in public cloud usage.

What are we looking for

We are seeking a dedicated and passionate Application Engineer with 3 years of experience to join our growing team. The ideal candidate will have a solid background in Javascript & Python development experience building web applications with React and a core understanding of APIs and modern infrastructure tooling. You will play a key role in building the applications and tools that surface our cloud sustainability insights to customers contributing to our mission of making cloud computing more environmentally responsible. This role requires a product-minded engineer who can own features end-to-end and will work directly with other areas of the business to build amazing things.

What will you be doing

• Building and maintaining APIs that power our products.
• Developing full-stack applications using React and . with a Python Back-end.
• Build AI-driven product features with Claude Code and continuously refine the prompts patterns and team workflows around it.
• Use frontend frameworks such as shadcn and tailwind-ui to build features without the need for high-fidelity designs.
• Working with our data team to surface insights in usable interfaces.
• Improving deployment pipelines and infrastructure (AWS Terraform).
• Shipping iteratively and responding to customer feedback quickly.
• Collaborating directly with the platform and data teams to ensure seamless integration.
• Building a comprehensive understanding of our existing products and identifying areas for enhancement.
• Where required helping with DevOps tasks and infrastructure automation.
• Documenting implementation processes clearly and concisely.
• Contributing to product discussions bringing innovative solutions to complex challenges.
• Working as part of a tight-knit start-up team to make our vision of sustainability across the cloud a reality.

What skills are we looking for

• 3 years of experience in software engineering with a focus on building across the full stack of products.
• Designing features as they are built extrapolating from existing or rough designs using UI frameworks such as shadcn and Tailwind UI.
• Experience building web applications with React and NextJS.
• Strong understanding of APIs (REST GraphQL) and how to build and consume them using Python in FastAPI Flask or similar framework
• Experience using Claude Code and/or Cursor to build features
• Working knowledge of AWS or experience working with other major cloud platforms.
• Ability to work independently and manage multiple projects concurrently.
• Understanding of cloud infrastructure deployment best practices & the ability to ship full-stack features quickly and iteratively
• Strong problem-solving skills and clear communication.
• Nice to have: Experience with infrastructure-as-code and CI pipelines.
• Nice to have: Experience with data pipelines or working with large datasets.
• Nice to have: Passion for sustainability and reducing the environmental impact of cloud computing.
• We are a fast-growing start-up with a lot of moving parts - while well support you along the way we want someone who is confident to work independently as well as collaboratively.
  

What We Offer

• Flexible working hours with hybrid office space in Central London.
• The opportunity to contribute to a meaningful project with a real-world impact.
• Working with a fun passionate team in a company that is growing quickly.
• Exposure to cutting-edge cloud technologies and large-scale data systems.
• Opportunities to attend global conferences in the tech and sustainability sectors.
  (even speaking opportunities if that floats your boat!)
• Build up an extra day of holiday for every year you spend with us
• 2 weeks global remote working allowance
• Competitive salary package.
• Share options scheme.

How to Apply:

If you are passionate about building great products software engineering and sustainability we would love to hear from you. Please send your details to .

Required Experience:

IC