Senior Product Engineer (Frontend Focus) in London
Senior Product Engineer (Frontend Focus)

Senior Product Engineer (Frontend Focus) in London

London Full-Time 60000 - 90000 Β£ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Own frontend architecture and design intuitive user experiences for impactful climate-tech products.
  • Company: Join Greenpixie, a fast-growing climate-tech start-up making a real difference.
  • Benefits: Flexible hours, competitive salary, share options, and global remote working allowance.
  • Other info: Collaborative environment with opportunities for growth and global conference attendance.
  • Why this job: Shape the future of cloud computing while contributing to sustainability efforts.
  • Qualifications: Deep experience with React/Next.js, Python, and strong product judgement required.

The predicted salary is between 60000 - 90000 Β£ per year.

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

Employment Type: Full-Time

Salary Range: Β£60 - Β£90k p.a. dependent on experience. Share options available.

Who are Greenpixie?

Greenpixie is a climate-tech company focused on measuring and reducing the environmental impact of cloud computing. We build software that helps organisations understand and reduce their cloud emissions. Our products are technically complex and data-heavy, which makes clarity, usability, and strong product thinking critical.

What are we looking for?

We are hiring a Senior Product Engineer with a strong frontend focus and full-stack capability. This is a product-minded engineering role with real ownership. You will take features from rough concepts through to production, with a particular focus on building high-quality, intuitive user experiences. You will define how the frontend is structured, how products feel to use, and how the team approaches building user-facing features. You will act as a key technical and product voice, working closely with leadership, engineering, and data teams.

What will you be doing?

  • Own and define the frontend architecture across a variety of products
  • Set standards for UI quality, interaction design, and performance
  • Act as the go-to expert for frontend and UX decisions
  • Design and build complex product features end-to-end
  • Translate highly technical data into intuitive product experiences
  • Shape product direction in collaboration with founders and the wider team
  • Establish and evolve a design system and component architecture
  • Improve development workflows, including use of AI tooling
  • Contribute across the stack (React / Next.js + Python)
  • Guide technical decisions without formal line management
  • Raise the bar across engineering through example and feedback
  • Document decisions clearly and pragmatically

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

What skills are we looking for?

Essential

  • Deep experience building and scaling full-stack systems with React / Next.js & Python
  • Proven experience owning frontend architecture or major product surfaces
  • Strong full-stack capability (APIs, backend systems, ideally Python)
  • Exceptional product and UX judgement
  • Experience designing systems and interfaces from first principles
  • Ability to operate as a technical leader without formal authority
  • Strong communication and decision-making skills
  • Clear communication and a product-focused mindset

Nice to have

  • Backend experience using Python (FastAPI, Flask, or similar)
  • Experience defining or scaling a design system
  • Experience with AWS, Terraform, or modern cloud infrastructure
  • Experience in data-heavy or complex B2B products
  • Familiarity with AI-assisted development workflows
  • Interest in sustainability and reducing the environmental impact of cloud computing

We are a fast-growing start-up with a lot of moving parts. We want someone comfortable working independently, making decisions, and collaborating closely with others.

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 want to own meaningful product surfaces, shape how things are built, and work on real-world climate impact, we’d love to hear from you. Please send your details to careers@greenpixie.com.

Senior Product Engineer (Frontend Focus) in London employer: πŸ‘‹ Work at Greenpixie

Greenpixie is an exceptional employer that offers a dynamic and flexible working environment in the heart of Central London, where you can make a tangible impact on climate change through innovative technology. With a strong emphasis on employee growth, you'll have the opportunity to shape product direction, collaborate with passionate colleagues, and engage in meaningful projects while enjoying competitive benefits like share options and additional holiday for each year of service.
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Contact Detail:

πŸ‘‹ Work at Greenpixie Recruiting Team

StudySmarter Expert Advice 🀫

We think this is how you could land Senior Product Engineer (Frontend Focus) in London

✨Tip Number 1

Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A personal connection can often get you a foot in the door, so don’t be shy about making those introductions.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your best work, especially projects that highlight your frontend expertise. This gives potential employers a taste of what you can do before they even meet you.

✨Tip Number 3

Prepare for interviews by practising common technical questions and scenarios related to frontend architecture and UX design. We want to see how you think, so be ready to explain your thought process clearly.

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our mission to reduce cloud emissions.

We think you need these skills to ace Senior Product Engineer (Frontend Focus) in London

React
Next.js
Python
Frontend Architecture
User Experience (UX) Design
Full-Stack Development
API Development
Communication Skills
Technical Leadership
Design System Development
Cloud Infrastructure (AWS, Terraform)
Data Analysis
AI-Assisted Development Workflows
Product-Focused Mindset

Some tips for your application 🫑

Show Your Passion for Sustainability: When you're writing your application, let your enthusiasm for sustainability shine through. We’re all about reducing the environmental impact of cloud computing, so share any relevant experiences or projects that highlight your commitment to this cause.

Highlight Your Technical Skills: Make sure to clearly outline your experience with React, Next.js, and Python in your application. We want to see how you've used these technologies to build and scale products, so don’t hold back on the details!

Demonstrate Product Mindset: This role is all about owning product surfaces, so show us your product-focused mindset. Share examples of how you’ve shaped user experiences or made decisions that improved product quality in your previous roles.

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of applications better and ensures you don’t miss out on any important updates from us!

How to prepare for a job interview at πŸ‘‹ Work at Greenpixie

✨Know Your Tech Stack

Make sure you’re well-versed in React, Next.js, and Python. Brush up on your full-stack capabilities and be ready to discuss how you've used these technologies in past projects. Highlight any experience with AI development tools, as this is a key focus for the role.

✨Showcase Your Product Mindset

Prepare to talk about your approach to product design and user experience. Think of examples where you’ve taken features from concept to production, and be ready to explain how you ensure clarity and usability in complex systems.

✨Communicate Clearly

Strong communication skills are essential for this role. Practice articulating your thoughts on technical decisions and product direction. Be prepared to discuss how you collaborate with teams and influence without formal authority.

✨Demonstrate Your Passion for Sustainability

Since Greenpixie focuses on reducing the environmental impact of cloud computing, it’s important to express your interest in sustainability. Share any relevant experiences or projects that align with their mission, showing that you’re not just a tech expert but also passionate about making a difference.

Senior Product Engineer (Frontend Focus) in London
πŸ‘‹ Work at Greenpixie
Location: London

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