Systems Engineer, Cryptography, Access and Identity Services

AmazonWebServices; Greater London; On-site; GBP 44,000 - 72,000; Full time

Job summary

AmazonWebServices in Greater London is seeking a skilled site reliability engineer to build and operate services for customers in a large-scale, high-availability cloud environment. You will work across Linux systems, automation, and security to keep our platforms resilient.

You will mentor junior team members, develop automation tooling, monitor performance with metrics, and participate in root-cause analyses.

Qualifications

• Experience in site reliability, systems engineering, or related fields.
• Experience with Linux.
• Experience in at least one of Python, Java, Perl, PHP, Ruby, Bash, Shell.
• Knowledge of TCP/IP and networking protocols (HTTP, DNS) preferred.
• Automation scripting to improve operational efficiency and security.
• Experience in a 24/7 production environment preferred.
• Familiarity with service-oriented architecture and web services preferred.

Responsibilities

• Build and operate services for customers in a large-scale, high-availability environment.
• Automate service operations and deployment methods.
• Provide mentoring for junior team members.
• Build and operate cryptography, access, and identity services.
• Troubleshoot Linux issues, implement fixes, and keep software up to date.
• Provide data and metrics to manage capacity and efficiency of services.
• Identify and troubleshoot network connectivity issues.
• Develop solutions to reduce manual toil across the organization.
• Develop, build, deploy, operate, sustain, and grow services in cloud production environments.
• Use trends and metrics to identify opportunities for improvement.

Skills

Site reliability engineering

Systems engineering

Linux

DevOps

Security administration

Network administration

Python

Java

Bash

Scripting

SOA / Web services

24/7 production

Networking concepts

Tools

AWS

Bash

Cloud

Cryptography

DevOps

HTTP

Java

Linux

Network

PHP

Perl

Python

Ruby

Security

TCP/IP

Web

Job description

Salary: £44,000 - 72,000 per year

Requirements:

• We need experience in site reliability engineering, systems engineering, systems administration, DevOps, security administration, or network administration.
• We need experience working with Linux.
• We need experience in systems engineering.
• We need experience in at least one of the following: Python, Java, Perl, PHP, Ruby, Bash, Shell, or equivalent.
• We prefer knowledge of TCP/IP and networking protocols such as HTTP and DNS.
• We prefer experience designing and developing scripts to automate operational burdens and reviewing scripting changes for maintainability, scalability, and security.
• We prefer experience working in a 24/7 production environment.
• We prefer experience with service-oriented architecture and web services.

Responsibilities:

• We build and operate services for our customers in a large-scale, high-availability environment.
• We automate service operations and deployment methods.
• We provide mentoring for junior team members.
• We build and operate critical cryptography, access, and identity services.
• We troubleshoot Linux issues, innovate fixes and workarounds, and keep software up to date.
• We provide data and metrics to help manage the capacity and efficiency of our services.
• We identify and troubleshoot network connectivity issues.
• We build solutions to reduce manual toil across our organization.
• We develop, build, deploy, operate, sustain, and grow our services in cloud production environments.
• We use trends and metrics to identify opportunities for improvement.
• We help develop and refine procedures used by our team and internal customers.
• We dive deep into root-cause analysis for customer issues and investigate negative metric trends.
• We implement operational excellence best practices and automate manual processes.

Technologies:

• AWS
• Bash
• Cloud
• Cryptography
• DevOps
• HTTP
• Support
• Java
• Linux
• Network
• PHP
• Perl
• Python
• Ruby
• Security
• TCP/IP
• Web

More:

We are AWS, the worlds most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and continue to innovate, supporting customers from startups to Global 500 companies with our cloud services. Our team culture is collaborative, purposeful, and enthusiastic, with a strong focus on inclusion, mentorship, career growth, and work-life balance. We encourage diverse experiences and welcome candidates from non-traditional paths. In this role, we work on distributed systems at massive scale, solve complex first-order problems, and build the tools and utilities that support our internal services.

last updated 36 week of 2026