Senior Site Reliability Engineer

Next Matter; Remote; GBP 70,000 - 90,000; Full time

Job summary

A leading tech firm is hiring a Senior Site Reliability Engineer to enhance reliability and observability across its platform. This role offers full ownership of reliability and incident management, requiring 5+ years of experience in Site Reliability or Infrastructure roles. You will collaborate with engineering teams, ensuring robust system performance and stability. Enjoy a fully remote working model within the UK, competitive salary, and the chance to shape SRE culture in a fast-growing environment.

Benefits

Competitive salary

Full benefits package

Opportunities to visit Paris or London hubs

Qualifications

• 5+ years of experience in Site Reliability, DevOps, or Infrastructure Engineering roles.
• Deep understanding of distributed systems and debugging at various layers.
• Hands-on experience with AWS and container orchestration.

Responsibilities

• Own reliability end-to-end across the platform.
• Lead incident management and define workflows.
• Collaborate with product and engineering teams.

Skills

AWS (EKS, S3, GuardDuty, Route53, IAM, and more)

Rust

TypeScript

PostgreSQL

Cassandra

ClickHouse

Docker

Kubernetes

GitLab CI

Tools

Pulumi

Grafana

Prometheus

Loki

Jaeger

Job description

Location

UK

Employment Type

Full time

Location Type

Remote

Department

Engineering

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 take full ownership of Cryptio’s reliability, observability, and incident response. You’ll work across our stack—from AWS infrastructure to Rust microservices, TypeScript indexers, and data‑heavy backends—to ensure our platform remains fast, stable, and resilient as we scale.

This is a role for a hands‑on builder who can see across systems, trace complex issues, and design reliability into everything we ship. You’ll collaborate closely with engineering and product teams to define SLAs/SLOs, strengthen monitoring and alerting, improve incident management, and build the processes and tooling that make reliability a shared culture at Cryptio.

Key technologies

• AWS (EKS, S3, GuardDuty, Route53, IAM, and more)
• Rust, TypeScript (Nest.js, React, OpenAPI)
• PostgreSQL, Cassandra, ClickHouse
• Pulumi, GitLab CI, Docker, Kubernetes
• Grafana, Prometheus, Loki, Jaeger

What you’ll do

• Own reliability end‑to‑end: design, measure, and improve service availability, latency, and performance across Cryptio’s platform
• Enhance observability: expand and refine metrics, logs, and traces to provide deep insight into our Rust and TypeScript services
• Lead incident management: define playbooks, improve response workflows, and foster a blameless postmortem culture
• Strengthen infrastructure: optimise AWS configurations, CI/CD pipelines, autoscaling, and networking for reliability and cost efficiency
• Collaborate across teams: work with product and engineering leads to ensure reliability is considered at every design stage
• Drive continuous improvement: identify systemic weaknesses, automate recovery where possible, and reduce MTTR across the stack
• Champion SRE best practices: guide teams on capacity planning, runbooks, and resilience testing

What we’re looking for

• 5+ years of experience in Site Reliability, DevOps, or Infrastructure Engineering roles
• Deep understanding of distributed systems and debugging at the network, application, and database layers
• Hands‑on experience with AWS, container orchestration (Kubernetes, ECS), and Infrastructure‑as‑Code tools (Pulumi or similar)
• Comfortable tracing through Rust and TypeScript code to diagnose complex performance or reliability issues
• Experience with (or willingness to learn) Cassandra and ClickHouse in production
• Strong collaborator with excellent communication skills
• Systematic, analytical, and passionate about building reliable systems at scale
• Interest in (or curiosity about) crypto, finance, or large‑scale data systems

Why you’ll love this role

• True ownership of reliability and uptime across a critical, fast‑growing SaaS platform
• Opportunity to shape SRE culture and processes from the ground up
• Work with a world‑class engineering team at the intersection of crypto, accounting, and data infrastructure
• Freedom to experiment and improve observability, alerting, and recovery pipelines end‑to‑end
• 100% remote (UK only), with opportunities to visit our Paris or London hubs
• Competitive salary and full benefits package

Interview process

• Talent Screen (15–30 min): Initial call to discuss your background, Cryptio, and the role
• Technical Interview (60 min): Deep dive into reliability, AWS, and debugging scenarios
• Team Interview (45 min): Meet an engineer and product manager to explore cross‑team collaboration
• CTO Interview (45 min): Discussion about technical strategy, ownership, and your vision for reliability at Cryptio

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.