Senior Site Reliability Engineer

MongoDB; London; On-site; GBP 70,000 - 120,000; Full time

Job summary

A leading company in the tech industry seeks a Senior Site Reliability Engineer to design and build global cloud infrastructure. The role involves optimizing systems for performance and resilience, while working closely with security frameworks and automation tools in a dynamic environment. Competitive compensation and opportunities for professional growth are offered.

Benefits

Generous compensation package

Opportunities to learn on the job

High level of independence

Qualifications

• Experience running a mission critical service at scale.
• Understanding of information security issues.
• Prior experience in a Linux environment.

Responsibilities

• Design and build infrastructure for a global cloud service.
• Implement and troubleshoot monitoring of services.
• Participate in weekly on-call rotation while improving infrastructure capabilities.

Skills

Information security

Infrastructure performance

Automation tools

Web and network protocols

Linux environment

Modern programming languages

Education

Bachelor's degree in Computer Science

Job description

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Senior Site Reliability Engineer, London

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Client:

MongoDB

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

eddbd57b71de

Job Views:

3

Posted:

17.06.2025

Expiry Date:

01.08.2025

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Job Description:

MongoDB’s mission is to empower innovators to create, transform, and disrupt industries by unleashing the power of software and data. We enable organizations of all sizes to easily build, scale, and run modern applications by helping them modernize legacy workloads, embrace innovation, and unleash AI. Our industry-leading developer data platform, MongoDB Atlas, is the only globally distributed, multi-cloud database and is available in more than 115 regions across AWS, Google Cloud, and Microsoft Azure. Atlas allows customers to build anywhere—on the edge, on premises, or across cloud providers. With offices worldwide and over 175,000 developers joining MongoDB every month, it’s no wonder that leading organizations, like Samsung and Toyota, trust MongoDB to build next-generation, AI-powered applications.

The MongoDB Cloud Team is a diverse collection of individuals working together to provide MongoDB in the cloud at global scale. The Cloud Team is responsible for several services including MongoDB Atlas - our database as a service offering and fastest growing product, MongoDB Realm- our serverless platform offering that allows developers to build apps on MongoDB without managing any infrastructure, and our newest offering, Atlas Data Lake.

The Cloud Site Reliability Engineering Team designs and builds the global infrastructure on which we deploy our services. As our customers grow and globalize, our services must satisfy demands for low-latency requests around the globe, and comply with various data sovereignty requirements. The SRE Team’s mission is to build this increasingly complex infrastructure, while continually lowering the operational burden associated with it, and increasing our internal visibility into the health of the system. We are strong believers in infrastructure-as-code and self-healing systems. The SRE Team is fully integrated with all the other Cloud teams, and the teams work closely together with a soft and traversable boundary between their areas of responsibility.

We are looking to speak to candidates who are based in the UK.

Responsibilities

• Design and build the infrastructure for a global cloud service that comprises hundreds of thousands of MongoDB clusters, processes a billion metrics per day, and replicates tens of billions of database writes to our backup service
• Design, implement, and troubleshoot the automation and monitoring of services that seamlessly spans the globe - including several cloud providers
• Become an expert in infrastructure performance, helping us optimize from the application level all the way through the firmware
• Build for resilience. Our goal is that nobody’s pager goes off, ever. Are we there yet? No. Are we really close? Very. While we work on that - participate in a weekly on-call rotation
• Improve our infrastructure capabilities, optimizing for cost, simplicity, and maintainability

Requirements

• You have experience running a mission critical service at scale
• An understanding of information security issues
• Prior experience running critical production systems in a Linux environment
• Firm grasp of at least one modern programming language, beyond basic scripting
• Solid understanding of web and network protocols and standards (HTTP, TLS, DNS, etc)
• Bachelor’s degree in Computer Science or equivalent experience
• Experience writing automation tools & eagerness to "automate all the things"

Nice to haves

• Experience building large applications from scratch, complete with CI/CD infrastructure
• Experience in networking, security, hardware or OS performance tuning
• Experience with at least one of the major cloud providers (Amazon Web Services, Google Compute, Microsoft Azure)
• Experience managing kubernetes clusters or some other container orchestration infrastructure
• Experience with observability of large scale distributed systems

What's in it for you

• Generous compensation package (top-range salary: we pay in the top 95% percentile and our package includes equity and generous benefits)
• Opportunities to learn on the job (time to up skill in new technologies)
• High level of independence in your day to day work