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System Development Engineer, Core Network

DESCRIPTION

Would you like to be an Engineer that builds the Cloud, rather than an Engineer that just uses it? At AWS, our Engineers look after the behind-the-scenes software and tools that make the world's largest cloud computing infrastructure possible.

We have an amazing opportunity for you to join a world-class network team in a dynamic environment that has the feel of a start-up. As a System Development Engineer you will help to deploy, manage, fix and reinvent the software tools, services and components that network engineering rely on to automate our network and keep it operational. You will actively be involved in innovating new software solutions to solve the challenges of operating the AWS network. Your internal customers are your network engineer colleagues, and through close collaboration, support and exchange of ideas, we share a common goal to serve our external customers and grow through learning and innovation.

If you are exceptionally motivated and passionate about the work you do then we welcome you to join us, working in an Agile environment with the most advanced tools, processes and talented people in the industry to make the Cloud a reality.

What you'll be working on:

- Identifying and solving challenging systems, process and tooling issues to make things better for our customers
- Designing and implementing entire new software components, products or services which improve operational efficiency
- Investigating technical issues thoroughly, performing root cause analysis, identifying changes to procedures and systems and implementing long term fixes to avoid repeating issues.
- Providing solutions to technically challenging real business problems in a global organization

Key job responsibilities
A SysDE is responsible for maintaining and improving their team's services end-to-end, requiring them to troubleshoot and identify the root cause of issues that arise within their systems. They will design and implement testing, monitoring, and validation improvements across services, tools, and infrastructure to ensure their teams can continuously deploy new versions with minimal interruption. A SysDE will proactively identify areas to invent, refine, and develop automation and tools to reduce manual operations across teams, making pragmatic trade-offs to fulfill both current and future requirements of the business and their customers.

You will need to be a UK national and able to obtain and maintain a UK Government Security Clearance. Further details found here: https://www.gov.uk/government/publications/united-kingdom-security-vetti...

About the team
The Systems Development team manages all of the software services and platforms that builds, operates, monitors and assures the AWS network within entire regions. We design and implement automation and new software solutions to improve operational efficiency on behalf of our Network Engineer customers. We're at the forefront of powering AWS's vast network infrastructure, transforming complex operational challenges into scalable systems that enhance the reliability and efficiency of one of the world's largest cloud networks.

Top Reasons to join our team:

- Collaborate with and learn from the best networking experts in the world
- Get to develop, build and operate networks at the very largest scale, in an organisation that values its engineers and engineering teams, and promotes innovation and ownership
- Be part of a unique team that's dedicated to history-making programmes
- Start a career path in one of the largest and most successful tech companies with a near-endless opportunity to explore and grow
- You will get exposure to a wide breadth of technologies, presenting unprecedented opportunity for learning and career growth
- Receive 1:1 coaching and mentorship from industry leading network and software engineers to accelerate your development
- Work on high impact projects with opportunity to truly disruptive products that are growing rapidly
- Define, build, run services in a high growth environment with significant autonomy and levels of ownership

Diverse Experiences
AWS values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or includes alternative experiences, don't let it stop you from applying.

Why AWS?
Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.

Mentorship & Career Growth
Our team is dedicated to supporting new members. We have a broad mix of experience levels and tenures, and we're building an environment that celebrates knowledge sharing and mentorship. Our team enjoy one-on-one mentoring and detailed and constructive code reviews. We care about your career growth and strive to assign projects based on what will help each team member develop into a better-rounded engineer and enable them to take on more complex tasks in the future.

Inclusive Team Culture
Here at AWS, we embrace our differences. We are committed to furthering our culture of inclusion. We have ten employee-led affinity groups, reaching 40,000 employees in over 190 chapters globally. We have innovative benefit offerings, and we host annual and ongoing learning experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon (gender diversity) conferences.

Work/Life Harmony
Our team also puts a high value on work-life harmony. Striking a healthy balance between your personal and professional life is crucial to your happiness and success here.

BASIC QUALIFICATIONS

- Relevant experience in software development, systems engineering, SRE or DevOps roles
- Knowledge of professional software engineering best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
- Practical understanding of network fundamentals (DNS, DHCP, TCP/IP, routing, switching, HTTP)
- Knowledge of systems engineering fundamentals (host networking, storage, *nix operating systems)
- Demonstrable experience programming with at least one modern language such as Python, C++, C#, Java, Golang, Ruby

PREFERRED QUALIFICATIONS

- Experience with Python
- Experience of designing, developing or operating cloud services running on AWS or another cloud platform

Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice (https://www.amazon.jobs/en/privacy_page) to know more about how we collect, use and transfer the personal data of our candidates.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

System Development Engineer, Core Network

London, UK
Full-Time

Published on 06/09/2025

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