Blockchain is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. We are looking for a Head of Site Reliability Engineering (SRE) who will serve as the principal leader in developing and executing our infrastructure reliability strategy that scales with the company as it continues to grow.  You will join an exceptional crypto company and senior engineering management team at a time of high growth. This is a tremendous opportunity for a leader to enhance and shape the infrastructure vision at a high-growth crypto financial services company. You will know how to navigate complex organizations to build relationships, deliver results, and understand the macro environment in crypto while ensuring the day-to-day uptime and safety of Blockchain.com’s needs. WHAT YOU WILL DO * Establish a multi-year platform and reliability strategy, defining the SRE roadmap and driving engineering standards for observability, automation, and production readiness * Be a strong business enabler, allowing us to deliver products quickly whilst maintaining standards-compliance and security through well-designed self-service tooling. * Lead, mentor, and scale a global team of senior SREs, developing technical leaders through coaching and a strong hiring pipeline. * Architect and manage a secure hybrid infrastructure across GCP, AWS, and on-premise data centers, deploying sensitive components (using Kubernetes and Hashicorp Nomad) with zero-trust principles. * Own incident response and root-cause analysis, ensuring MTTD/MTTR targets are met while systematically addressing technical debt and legacy system inconsistencies. * Govern cloud architecture, IaC, networking, and cost management to maintain the organization’s dedication to automated workflows wherever feasible. * Build strong relationships with departments across the organization to understand requirements and deliver services whilst maintaining our standing with auditors and regulators. WHAT YOU WILL NEED * Leadership & Standards: Proven experience leading senior SRE teams in 24/7 financial environments, with the ability to influence alignment around shared engineering standards. * Cloud & Orchestration: Deep expertise in GCP and AWS networking/management, alongside hands-on experience with Kubernetes, Nomad, and optimized Terraform workflows. * Hybrid Infrastructure: Solid background in bare-metal hardware, data center networking, and implementing Cloudflare Zero Trust architectures. * Systems & Observability: Strong software engineering background with a deep understanding of distributed systems, Linux and approaches to achieving good observability & reliability. * Execution: Strong judgment in prioritizing reliability, security, and developer productivity while evolving complex, heterogeneous estates rather than just greenfield environments. COMPENSATION & PERKS * Full-time salary based on experience and meaningful equity in an industry-leading company * This is a role based in our London office, with a mandatory in-office presence four days per week. * Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year. * ClassPass  * Unlimited vacation policy; work hard and take time when you need it * Apple equipment * The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an emerging field * Flexible work culture   Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at dpo@blockchain.com. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.