Senior Site Reliability Engineer

Department: Engineering

Location: London

Employment Type: FullTime

About Cryptio

We’re Cryptio. We build infrastructure to bring financial integrity to the crypto economy. Our enterprise-grade back-office and data platform power mission-critical accounting, reporting, and operational workflows for institutions, corporates, and crypto-native organisations.

We’re trusted by leaders like Circle, Societe Generale, Uniswap, Gemini, and the Government of El Salvador. We’ve raised $26m from top investors including Point Nine, 1kx, Tim Draper, and Ledger Cathay.

The Opportunity

We’re hiring a Senior Site Reliability Engineer (SRE) to strengthen the reliability, observability, and performance of Cryptio’s platform. You'll work across our stack, with a heavy focus on AWS and Kubernetes, helping to make our systems faster, more stable, and easier to operate.

This is a role for a hands-on builder who can trace complex issues, design reliability into everything we ship, and take ownership of both infrastructure and application reliability. You’ll collaborate closely with senior engineers and the CTO to implement our reliability roadmap, improve monitoring and incident management, and automate our infrastructure.

It’s a great opportunity for an experienced SRE/Platform Engineer ready to lead in Kubernetes and AWS environments, take ownership of complex systems, and grow into senior reliability responsibilities.

Key Technologies

• AWS

• Kubernetes

• PostgreSQL, Cassandra, ClickHouse

• Pulumi, GitLab CI, Docker

• Grafana, Prometheus, Loki, Jaeger

• Rust, TypeScript (Node.js. Nest.js, React, OpenAPI)

What you'll do

• Drive reliability improvements across AWS and Kubernetes, as well as application layers

• Enhance observability by refining logs, metrics, and traces

• Support incident response and contribute to postmortem analysis and automation

• Maintain and evolve AWS and Kubernetes environments with a focus on scalability and cost efficiency

• Collaborate with engineers to make deployments and services more reliable

• Automate infrastructure through Infrastructure-as-Code and CI/CD improvements

• Contribute ideas and best practices to strengthen our reliability culture

We’re looking for someone who

• Has 3+ years of experience in Software Engineering, SRE, DevOps, or Infrastructure roles

• Has strong, practical experience with AWS and deep understanding of core AWS primitives (IAM, EC2, EKS, RDS, VPC, Subnets, S3, EBS, ELB)

• Has significant experience with Kubernetes (ideally beyond basic usage: e.g. developed/used operators like zalando-postgres, Kyverno, Keda, installed on bare-metal, used Traefik, or developed custom operators)

• Has hands-on experience with databases such as PostgreSQL, Cassandra, or ClickHouse

• Knows at least one programming language well enough to debug and improve systems

• Has used Infrastructure-as-Code tools like Pulumi or Terraform

• Enjoys debugging complex systems and improving performance or reliability

• Communicates clearly and collaborates effectively with software teams

• Is curious, systematic, and eager to grow into a senior reliability role

• (Bonus) Experience or interest in Rust, TypeScript, or crypto/finance/data systems

Why you’ll love this role

• Work on a high-impact platform powering top crypto and finance institutions

• Gain broad exposure across infrastructure, application, and data layers

• Execute on a clear reliability strategy with guidance from the CTO

• Opportunity to develop into a senior SRE over time

• Fully remote, with opportunities to visit our hubs in Paris or London

Interview Process

• Talent Screen (15–30 min): Quick call to discuss your background, Cryptio, and the role

• Technical Interview (60 min): Practical discussion around AWS/Kubernetes/cloud infrastructure, observability, and incident handling

• Team Interview (45 min): Meet an engineer and product manager to explore collaboration

• CTO Interview (45 min): Discussion about roadmap, mentorship, and your growth path at Cryptio

Perks

👩‍💻 Remote or Hybrid working

🏝️ 25 days paid holiday plus bank holidays

🙌 One additional day of annual leave each year, up to 30 total days

🎂 Your birth off

🧘 Mental health resources, wellbeing programs, and professional coaching

🫶 Family-friendly policies

💪 Fitness and wellness budget

💻 MacBook Pro

🖥️ $200 home office setup budget

🎓Training and development budget

*** we have additional benefits depending on location

If this sounds like you, we would love to hear from you 🙌

At Cryptio, we move fast and take ownership of outcomes. We learn from failures, celebrate wins, and let humility, curiosity, and a passion for crypto guide how we work. If you value collaboration and want to build with purpose, you’ll feel right at home here.