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Principal DevOps Engineer

Plasma

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

We are looking for a Senior DevOps engineer to build and maintain the infrastructure supporting the next-generation blockchain for stablecoins. You will work closely with 4 of our wonderful DevOps engineers, valuing technical ambition and ownership.

Job Responsibility:

  • Own the reliability roadmap: lead the architectural evolution of our production systems toward higher availability, graceful degradation, and predictable failure recovery
  • Redesign for resilience: identify brittleness in existing infrastructure and drive systematic improvements, such as chaos engineering, redundancy patterns, and blast-radius reduction
  • Elevate observability: transform our monitoring from system health to risk awareness, ensuring we catch issues before they escalate to incidents
  • Strengthen operational rigour: improve our runbooks, incident response protocols, and post-mortem practices to compound reliability gains over time
  • Mentor and uplift the team: share hard-won lessons from operating at scale, raise the collective bar, and nurture a culture of ownership
  • Partner across engineering: work with protocol, client, and backend teams to bake reliability in at the design phase

Requirements:

  • 10+ years of operating distributed systems at scale, ideally at companies where uptime was existential: big tech, HFT, exchanges, or blockchain infrastructure
  • system design depth: architected platforms for fault tolerance
  • fluent in Kubernetes, Terraform, and cloud infrastructure
  • led reliability transformations before, taking production systems from 'good enough' to 'financial-grade'
  • lead through influence, not authority

Nice to have:

  • Production blockchain experience: running L1/L2 infrastructure, validator operations, or RPC networks at scale
  • Background in HFT, trading systems, or fintech where latency and uptime directly impact P&L
  • Experience with formal SRE practices: error budgets, SLOs, capacity planning, and incident management at scale
  • Familiarity with Rust-based systems, consensus protocols, or indexing infrastructure
  • Track record of building reliability culture: not just systems, but the practices and mindsets that sustain them
What we offer:
  • Above market salary plus token compensation
  • Premium health insurance for you and your family fully covered by Plasma
  • Monthly wellness budget, whether for the gym, therapy, sauna & massage
  • A beautiful London HQ with gym access and daily food
  • All the tools and tech you need to operate at your best
  • Visa sponsorship and relocation support if you are joining the London office from abroad

Additional Information:

Job Posted:
February 21, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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