Backend Engineer

🧠 What you’ll do

The Octopus Energy Engineering 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 collaborate with top-tier talent and deliver high-impact global solutions.

⚙️ As a Backend Engineer in this team, you will:

• Collaborate internationally: Work closely with Octopus Energy ES and various global teams to develop and integrate new features for our website and mobile app.

• Own key product modules: Contribute directly to the private area, bill management, saving sessions, customer onboarding optimization, and marketing dashboards.

• 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.

💡 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 professional experience building backend applications with Python.

• Solid experience with Django (or equivalent robust web frameworks).

• Deep understanding of Domain Modelling and software architecture.

• Strong expertise designing and integrating GraphQL & REST APIs.

• Proven experience writing robust, fault-tolerant, and scalable software.

• Experience with Celery and asynchronous task processing.

• Solid handling of relational databases, especially PostgreSQL.

• Strong problem-solving skills and the ability to lead complex issues from concept to production.

🧲 Nice to have:

• Experience with cloud platforms and infrastructure (AWS, Terraform, Packer or Consul).
• Familiarity or exposure to frontend technologies such as React and Next.js.
• Familiarity with logging and metric aggregation platforms (DataDog).

💜 Why Join Us? Here’s What We Offer

• 📍 Location: Remote (Spain)
• ⏰ 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.