Site Reliability Engineer (B3626E1)

Referment; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Referment, a healthcare technology company, seeks a Site Reliability Engineer to own production backend systems from design through deployment, monitoring and on‑call support.

You will build cloud infrastructure, improve reliability and operational clarity, design robust APIs and databases, and apply data-protection principles in a regulated healthcare setting. Collaboration with engineers, operations and clinical stakeholders is essential.

Qualifications

• Minimum 5 years of professional backend experience.
• Experience owning business-critical backend systems through design, deployment, monitoring and on-call support.
• Strong API and database design skills, with experience designing schemas for structured data.

Responsibilities

• Design, build, deploy and operate production backend systems used by clinicians.
• Develop the cloud infrastructure supporting the product and improve reliability, scalability and operational clarity.
• Establish monitoring, alerting and incident-response practices, including on-call ownership.
• Design robust APIs, databases and schemas for structured information at scale.
• Apply security and data-protection principles throughout design and delivery, including encryption and access control.

Skills

Backend systems design

On-call ownership

Cloud infrastructure management

API design

Data protection & GDPR

Tools

Terraform

CDK

AWS

GCP

Azure

Job description

Referment is working with a healthcare technology company whose systems support clinicians delivering ADHD and autism assessments. The platform processes sensitive health information and sits directly in important clinical workflows, making availability, security and data integrity central to the value it provides.

This Site Reliability Engineer will take end-to-end responsibility for business-critical backend systems, from technical design and deployment through monitoring and incident response. It is a hands-on role in a small engineering environment, suited to someone who can improve cloud infrastructure without relying on a separate platform team and who understands that dependable systems have a visible effect on clinical care.

The Role

• Design, build, deploy and operate production backend systems that clinicians can rely on in day-to-day assessment work.
• Develop the cloud infrastructure supporting the product and improve its reliability, scalability and operational clarity.
• Establish effective monitoring, alerting and incident-response practices, including thoughtful participation in on-call ownership.
• Design robust APIs, databases and schemas for structured information at scale.
• Apply security and data-protection principles throughout design and delivery, including encryption, access control, data minimisation and proactive threat modelling.
• Work with engineering, operational and clinical stakeholders to explain trade-offs and solve problems in an evolving startup environment.

What We're Looking For

• At least five years of relevant professional experience.
• A track record of owning business-critical backend systems through design, deployment, monitoring and on-call support.
• Strong experience with AWS, GCP or Azure, including the ability to build and evolve infrastructure directly.
• Solid API and database design skills, with experience designing schemas for structured data.
• Practical experience handling sensitive personal or health information and applying GDPR and core data-protection controls.
• Security-first engineering judgement and the ability to preserve reliability and data integrity while working quickly through ambiguity.

Desirable Experience

• Python, AWS, React, TypeScript or Auth0.
• Infrastructure as code using Terraform or CDK.
• Asynchronous processing pipelines, structured-data extraction or healthcare-system integrations.
• SOC 2, ISO 27001 or related compliance frameworks.
• Strong observability practices across logging, tracing and alerting.
• Corporate IT fundamentals such as device management, identity and networking.

This could suit a senior backend, platform or reliability engineer who wants broad production ownership in a regulated healthcare setting. Applicants must already have the right to work in the UK; visa sponsorship is not currently available, and a background check is required before starting.

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