Senior Frontend Engineer - Energy Flexibility Remote UK

Octoenergy; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Octopus Energy is seeking a Senior Frontend Engineer to join the Flexibility team in London. You will lead frontend direction, build customer journeys for onboarding, control, and analysis of low carbon tech, and collaborate with design and mobile teams.

You’ll work on scalable, accessible, high-traffic sites and participate in product discovery with stakeholders. The role offers hybrid London work, UK-based remote options, and a collaborative culture.

Qualifications

• 5+ years of frontend experience with React/TypeScript stack.
• Ability to turn problems into solid solutions rather than following strict guidelines.
• Experience owning the full development cycle from requirements to deployment.
• Comfort handling large-scale tasks independently and delivering quality results.
• Empathetic collaboration and delegation skills across teams.
• Strong accessibility proficiency and ability to build scalable, high-traffic sites.
• Desirable: energy domain knowledge.

Responsibilities

• Act as the Flexibility team’s frontend lead, establish frontend capability and guide technical direction across the team.
• Build and own customer journeys for onboarding, control, and analysis of low-carbon tech.
• Create internal interfaces for stakeholders and experimental prototypes.
• Provide WebViews to support mobile journeys in collaboration with mobile teams.
• Collaborate with design to integrate into the Coral design system.
• Engage in product discovery with the Product Manager and cross‑organ stakeholders.
• Develop highly reusable interfaces to enable rapid response to new opportunities.

Skills

React

TypeScript

Next.js

GraphQL

RTL & vitest

MSW

Tools

Next.js

GraphQL

Tanstack Query

React Testing Library

vitest

Job description

Octopus Energy is seeking a Senior Frontend Engineer to join the Flexibility team in London. You will lead frontend direction, build customer journeys for onboarding, control, and analysis of low carbon tech, and collaborate with design and mobile teams.

You’ll work on scalable, accessible, high-traffic sites and participate in product discovery with stakeholders. The role offers hybrid London work, UK-based remote options, and a collaborative culture.