Job Specifications
Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $170M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.
We're creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.
But we're not stopping there. We're also building the Energy Network: a decentralised platform of smart devices that rewards users in Energy Dollars for electrifying their homes, shifting usage to off-peak hours, and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.
We are looking for a seasoned and proactive Lead Security Engineer to help lead our security strategy. This role is crucial to protecting our core infrastructure, applications, and sensitive data as we continue to scale. The ideal candidate brings deep security expertise and thrives in fast-paced, product-focused environments. You will play a critical role in shaping secure architecture, implementing scalable protection mechanisms, and driving a security-first culture across the company.
Responsibilities
Security Architecture & Design
Design and implement secure infrastructure across cloud, web, and distributed application environments.
Provide architectural guidance for cryptographic key management, signing workflows, and secure APIs.
Evaluate and enhance security of components related to digital asset management, identity systems, or transaction flows
Risk Management & Threat Modelling
Conduct comprehensive threat modelling and risk assessments, especially around distributed or high-value transaction systems.
Define controls for securing sensitive operations such as wallet integrations, off-chain/on-chain data flows, and internal tooling.
Develop and manage internal threat intelligence processes to proactively identify and mitigate emerging risks
Security Operations & Incident Response
Lead response to advanced threats and incidents, including analysis, containment, and remediation.
Build and optimise detection mechanisms and playbooks for novel attack vectors, including abuse prevention and fraud detection
Governance, Compliance & Best Practices
Help define internal standards for security development practices, secrets management, and infrastructure hardening.
Maintain compliance with relevant frameworks (e.g., SOC 2, ISO 27001, GDPR), and support any industry-specific due diligence
Cross-Functional Collaboration
Partner with engineering, product, and infrastructure teams to embed security best practices into all stages of development.
Provide guidance on secure system design, especially in areas involving sensitive financial, identity, or cryptographic components
Requirements
Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or related field
Proven experience as a Security Engineer or in a similar role
Strong understanding of security protocols, cryptography, authentication, and authorisation
Familiarity with securing systems that involve digital transactions, cryptographic operations, or high-privilege user actions
Knowledge of operating systems, network protocols, and software development security
Experience with AWS cloud security
Excellent analytical and problem-solving skills
Benefits
Competitive salary and an equity sign-on bonus
Biannual bonus scheme
Fully expensed tech to match your needs
Paid annual leave
Breakfast and dinner allowance for office based employees
About the Company
We are building a full stack renewable energy company to accelerate global renewable energy transition. We are based in London, New York.
We've raised $90m from top tier investors like Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, MultiCoin.
Energy is broken – We are here to fix it.
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