Senior Site Reliability Engineer - FinTech / Global Payments - London HQ / Remote First

ZipRecruiter; London; Remote; GBP 85,000 - 100,000; Full time

Job summary

A leading SaaS FinTech scale-up in London seeks a Senior Site Reliability Engineer to champion SRE practices and contribute to a growing international client base. This remote-first role entails monitoring systems, defining KPIs, and promoting collaboration across teams while offering a competitive salary, annual bonus, and robust benefits.

Benefits

Annual Bonus (10%)

30 days holiday + bank holidays

Private Healthcare

Life Assurance

Qualifications

• Strong grounding in SRE principles and operational best practices.
• Proficient with observability tools such as Prometheus, Grafana, and Cloudwatch.
• Hands-on experience with AWS, especially services like EKS, RDS, and EC2.

Responsibilities

• Define SLIs/SLOs/SLAs, and reduce toil through automation.
• Monitor systems for performance and capacity planning.
• Lead knowledge-sharing sessions to promote DevOps culture.

Skills

SRE principles

Observability tools

Python

Go

AWS expertise

Linux fundamentals

IaC (Terraform)

CI/CD (GitHub Actions, Jenkins)

Containerisation (Docker, Kubernetes)

Job description

Job Description

Senior Site Reliability Engineer – FinTech / Global Payments – London HQ / Remote First

Salary - £85,000 + Bonus

Location - This UK-based team offers a fully remote working option, with a headquarters in Central London.

In this role, you will be joining a leading SaaS FinTech scale-up, setting a new industry standard within their market. The business aims to scale its platform significantly over the next few years to support a growing international client base.

Responsibilities

• Champion core SRE practices: define SLIs/SLOs/SLAs, reduce toil through automation, and plan for Disaster Recovery.
• Refine KPIs to support data-driven decisions around reliability and availability.
• Monitor systems to ensure optimal performance, cost-efficiency, and capacity planning.
• Collaborate with dev teams to build resilient, observable, and maintainable features.
• Promote DevOps culture by leading knowledge-sharing sessions and supporting issue resolution.

Skills

• Strong grounding in SRE principles and operational best practices.
• Proficient with observability tools (Prometheus, Grafana, OTEL, Cloudwatch) and telemetry pipelines.
• Solid programming skills in Python and/or Go; Java experience a plus.
• Hands-on AWS expertise (EKS, SQS, RDS, EC2, Lambda, Cloudwatch, etc.).
• Strong Linux and networking fundamentals (TCP, DNS, TLS, HTTP).
• Familiarity with IaC (Terraform), CI/CD (GitHub Actions, Jenkins), and Agile workflows.
• Experience with containerisation (Docker, Kubernetes) and stream processing (Kafka a plus).

Benefits

• Annual Bonus (10%)
• 30 days holiday + bank holidays
• Private Healthcare
• Life Assurance

If this is of interest, plesae feel free to apply for a confidential discussion or reach me on [e-mail]