---
title: 'Senior Frontend Engineer at Octopus Energy Group'
canonical: 'https://feeny.ai/job/senior-frontend-engineer-octopus-energy-group-barcelona-tscqsbkeq64x'
type: 'job'
last_seen: '2026-09-15'
---

# Senior Frontend Engineer at Octopus Energy Group

- **Company:** Octopus Energy Group
- **Location:** Barcelona, Spain
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-09-11
- **Last confirmed live:** 2026-09-15
- **Apply:** https://jobs.lever.co/octoenergy/abd814f5-c54b-40f5-85aa-db4705b61e95

## Job description

🌍 We’re Revolutionizing Energy to Change the World

At Octopus Energy, we’re not your typical utility company. We’re a team of passionate people working every day to make energy 100% renewable, accessible, and fair for everyone.

We believe technology and innovation are key drivers of change. Our mission is to transform the way the world consumes energy breaking down barriers, simplifying processes, and delivering a more human and transparent service.

That’s why our commitment is clear: clean energy should be the norm, not the exception. To achieve this, we combine sustainability with a people-first approach, delivering outstanding service and building a team that shares our vision.

💡 But none of this would be possible without people like you. To keep growing and transforming the energy sector, we’re looking for talent that wants to make a real difference. If you want to be part of this change, bring your energy, and help build a greener future, we want to meet you!!

🔍 What are we looking for?

We're looking for a Senior Frontend Engineer to join a very special team within Octopus Energy — the team responsible for building and scaling octopusenergy.es, our customer onboarding flows, and our customer private area. You'll act as the technical driver of this space, working hand in hand with Marketing and other internal stakeholders, while collaborating regularly with our international engineering teams across Europe. We're looking for someone who thrives on solving real problems for real customers, who's comfortable owning frontend architecture end-to-end, and who's flexible enough to jump into different areas of the business as needed. Your focus will be primarily Frontend, but if you have an interest in Backend or a Fullstack mindset, that's a big plus. 🐙 We call it the ‘Octopus Effect’

Working at Octopus Energy means being part of a company where culture and people come first.

💜 We’re committed to flexibility and work-life balance. 🚀 We want you to grow and reach your full potential. 🌱 We believe in a fairer and more sustainable energy model.

We’re waiting for you! 🚀

🧠 What you’ll do The Octopus Energy tech team is responsible for the sites, services, and tariffs used by millions of customers worldwide. From building cutting-edge time-of-use tariffs to gamifying user experiences, we tackle a wide variety of exciting challenges to push the energy revolution forward.

Our teams are multi-disciplined and collaborate internationally, meaning you'll have the support and resources to work with top-tier talent and deliver high-impact global solutions.

⚙️ As a Senior Frontend Engineer in this team, you will:

- Collaborate internationally: Work closely with Octopus Energy ES and various global teams to develop and integrate new features.
- Own key product modules: Contribute directly to the private area, bill management, saving sessions, customer onboarding optimization, and marketing dashboards, all from a frontend perspective.
- Drive fast-paced impact: Deliver code that directly impacts customers. Our priorities adapt to real-world needs, meaning the pace is fast and the feedback cycle is satisfyingly quick.
- Thrive in an agile culture: Enjoy flat hierarchies and an open environment that fosters innovation, flexibility, and creativity.
- Stay flexible: Be open to working across different areas of the business as priorities evolve, and optionally get involved in backend-related work (Python/Django, GraphQL) if you have the interest and skills to do so.

💡 Come as you are: At Octopus, we believe that diverse teams build better products. We foster an open, collaborative environment where authentic communication and mutual support are key. If you love to connect, share ideas, and solve complex problems alongside a supportive team, you'll fit right in.

🎯 What you’ll need to thrive Fluent spoken English is absolutely essential 🇬🇧. The team is international, so English will be the language you use on a daily basis.

On the technical side, you should have:

- Strong, proven experience as a Senior Frontend Engineer, with a solid grasp of modern frontend architecture.
- Deep expertise in TypeScript and React.
- Hands-on experience with Next.js, ideally hosted on Vercel.
- Experience working with GraphQL as a data layer.
- Comfort with CSS-in-JS solutions (experience with PandaCSS is a plus).
- Solid testing practices using tools like Vitest, React Testing Library, and Playwright.
- Experience working within a monorepo structure.
- A flexible, collaborative mindset and comfort working in a fast-paced, evolving environment.

🧲 Nice to have:

- Interest or experience in Backend development, particularly Python (Django).
- Familiarity with PostgreSQL.
- A Fullstack mindset: curiosity about the full picture, not just the frontend layer.

💜 Why Join Us? Here’s What We Offer

- 📍 Location: join us in Barcelona or Valencia (Hybrid)
- ⏰ Full-time (40 hours/week)

✨ Perks:

- 💰 Octopus Energy share options
- 🏥 Flexible benefits (meal vouchers, transport, childcare, private health insurance...)
- 🚘 Support for electric vehicle purchases
- 🏦 Pension plan
- 🎓 Training and professional development
- 🎉 Fun, inclusive and collaborative team culture
- 🍽️ Regular team events (like our “Family Dinners”)

💚 Why You’ll Love Working Here

- At Octopus Energy, we do things differently. We believe in a workplace where you can be yourself, grow professionally, and feel part of a team that genuinely wants to change the world.
- 🏆 We’re a Great Place to Work! On Glassdoor, we’ve been recognized as one of the Top 50 Best Places to Work, and our culture has been highlighted time and again.
- 🎙️ Want to learn more about how we work? Listen to our CEO in this podcast where he talks about our culture and values.

📩 Ready to Join the Change?

If you're excited about building a more sustainable future with us, we’d love to hear from you!

📎 Send us your CV, and if your profile fits, we’ll be in touch.

We can’t wait to meet you! 😉

## About Octopus Energy Group

## Company Overview
- **One-liner**: Octopus Energy Group is a global clean energy and technology company driving the green energy transition through its retail energy supply, renewable generation, energy services, and proprietary Kraken technology platform.
- **Entity Type**: Private (backed by institutional investors; not publicly traded)
- **Headquarters**: London, England, United Kingdom
- **Founded**: 2015
- **Founders**: Greg Jackson

## Core Business
- Primary industry: Energy (retail electricity and gas supply, renewable generation, energy services, and energy technology)
- Target customers: B2C (residential households), B2B (businesses, other utilities via Kraken licensing)
- Mission: “To drive the global green energy revolution” – bringing affordable, green energy to the world

## Products & Services
- **Octopus Energy (Retail)**: Electricity and gas supply to 10+ million households across 8 countries, known for award-winning customer service and smart tariffs.
- **Kraken Technologies**: Proprietary SaaS platform that acts as an “operating system for utilities,” managing everything from renewable generation to customer billing. Licensed to support over 50 million customer accounts globally.
- **Octopus Electric Vehicles (OEV)**: EV leasing service with over 27,500 vehicles in the UK, one of the top 10 EV leasing businesses.
- **Octopus Electroverse**: Europe’s largest public EV charging network, connecting nearly 1.1 million customers to over 1 million charge points across 40+ countries.
- **Octopus Energy Services**: Installation of smart meters, heat pumps, EV chargers, solar panels, and batteries (installed ~903,000 meters and 65,000 low-carbon devices in FY25).
- **Octopus Energy Generation**: Manages a £7 billion portfolio of 400+ renewable generators (wind and solar farms) across 19 countries.
- **Octopus Energy Heating**: Designs and manufactures heat pumps (Cosy series).
- **Centre for Net Zero**: Impact-driven research unit working at the intersection of tech, energy, and climate.

## Market Standing
- **Valuation**: Not publicly disclosed (reported “over a billion in funding” raised to date)
- **Key Metric**: Annual Revenue £13,683 million (FY25, ended April 2025), up 10% YoY [octopusenergy.group](https://octopusenergy.group/static/documents/OEGL_Financial_statements_Annual_Report_FY25.pdf)
- **Notable Investors**: Origin Energy, Tokyo Gas, CPP Investments, Generation (sustainable fund co-chaired by Al Gore), and Octopus Group
- **Growth Signals**:
  - Headcount: 3,282 employees (+30.6% YoY) [linkedin.com](https://linkedin.com/company/octopusenergy)
  - Serves 10 million customers globally (7.6 million in UK alone – UK’s largest household supplier)
  - Non-UK customer base nearly doubled to 2.4 million
  - Kraken aims to serve 100 million accounts by 2027
  - Expanded to 27 countries; operations in UK, Germany, USA, Japan, Spain, Italy, France, New Zealand, and more

## Competitive Advantages
- **Proprietary Kraken platform** delivers the lowest operational cost-to-serve in the industry, enabling superior economics and rapid scaling.
- **Customer-centric model** with 5-star TrustPilot rating (750,000+ reviews) and Which? Recommended Provider for nine consecutive years.
- **Vertically integrated** across the entire energy value chain: generation, retail, hardware installation, EV charging, and technology licensing.
- **Strong brand and rapid international expansion** – proven ability to replicate the model in multiple markets.
- **Backing of world-class investors** including Al Gore’s Generation fund, providing credibility and capital.

## Strategic Focus
- **International scaling**: Grow non-UK customer base and enter new markets.
- **Kraken expansion**: Reach 100 million licensed accounts by 2027.
- **Electrification of heat and transport**: Scale heat pump manufacturing, EV charging network, and smart home hardware.
- **Renewable generation growth**: Continue investing in wind and solar assets.
- **Demand flexibility**: Develop smart tariffs and grid-balancing products to enable a decentralised, green energy system.

## Why Work Here
- **Culture**: Described as “work with freedom and responsibility” – high trust, ownership, and autonomy. Founder Greg Jackson compares building the team to a dry-stone wall: fitting authentic people together naturally.
- **Recognition**: Named one of the Sunday Times Best Places to Work in 2026 [octopus.energy/careers](https://octopus.energy/careers/).
- **Mission-driven**: Every employee contributes to the urgent goal of affordable, green energy globally.
- **Diverse roles**: Hundreds of openings across retail, engineering, data science, hardware installation, EV, and more.
- **Engineering culture**: Kraken team works with advanced data and machine learning to revolutionise the energy grid.
- **Work model**: Not explicitly stated as fully remote; likely hybrid/office-based in London and other global hubs, with flexibility.
- **Growth trajectory**: Rapid headcount growth (+30.6% YoY) and global expansion offer career advancement opportunities.

## Sources
1. [octopus.energy/about-us](https://octopus.energy/about-us/)
2. [octopus.energy/careers](https://octopus.energy/careers/)
3. [linkedin.com](https://linkedin.com/company/octopusenergy)
4. [jobs.lever.co/octoenergy](https://jobs.lever.co/octoenergy)
5. [octopusenergy.group (Annual Report FY25)](https://octopusenergy.group/static/documents/OEGL_Financial_statements_Annual_Report_FY25.pdf)

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- [Account Manager B2B H/F](https://feeny.ai/job/account-manager-b2b-h-f-octopus-energy-group-paris-pnyh6ksm0n9f) — Paris, France
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