System Development Engineer, Region Reliability Engineering

Amazon Web Services (AWS); Denver (CO); On-site; USD 99,000 - 160,000; Full time

Job summary

Amazon Development Center U.S., Inc. in Denver, Colorado is seeking an Software Development Engineer I to build internal tools and platforms that empower AWS teams.

You will work with a creative group to design, implement, and enhance scripts and services used by thousands of builders across AWS. You will gain exposure to distributed systems, cloud infrastructure, and reliability engineering while collaborating across the development lifecycle and mentoring colleagues.

Qualifications

• Associate's degree or higher in a related field or equivalent certifications.
• Experience programming in at least one modern language (C++, C#, Java, Python, Golang, PowerShell, Ruby).
• Experience with automation tools and scripting.

Responsibilities

• Write clean, maintainable code for internal AWS tools and services, participating in code reviews and feedback.
• Implement and test features to boost developer productivity and operational capabilities across AWS.
• Collaborate across the software lifecycle: design, testing, deployment, and maintenance.
• Debug and resolve issues across the stack with proactive root-cause analysis.
• Automate repetitive tasks and build systems that minimize manual work and cognitive load, using Bedrock where relevant.
• Expand regional reliability for AWS services.
• Conduct deep dives into interdependencies to prevent incident impact.
• Mentor and grow with engineers, fostering excellence and reliability.

Skills

C++

C#

Java

Python

Golang

PowerShell

Ruby

Education

Associate's degree or higher in related field

Tools

Automation tools

Python scripting

Job description

Description

Application deadline: Sep 21, 2026

Are you ready to build tools that empower teams across all of Amazon Web Services? Join us as a Software Development Engineer I where you'll contribute to internal platforms that enable AWS teams to deliver exceptional customer experiences at scale. Your work will directly impact how thousands of builders across AWS develop, deploy, and operate services that millions of customers depend on daily.

In this role, you'll collaborate with a talented team of System Development Engineers and Systems Engineers to design and implement scripts and tools used throughout AWS. As you grow your technical skills, you'll learn to identify new opportunities that enhance developer productivity and operational excellence. This is an ideal opportunity for engineers early in their careers who want to make meaningful contributions while developing expertise in distributed systems, cloud infrastructure, and software engineering best practices.

The candidate selected must obtain and maintain a security clearance at the TS/SCI with polygraph level. Upon start, the selected candidate will be sponsored for a commensurate clearance for each government agency for which they perform AWS work.

Key job responsibilities

• Write clean, maintainable code for internal AWS tools and services, participating in code reviews and incorporating feedback to continuously improve code quality
• Implement and test new features that enhance developer productivity and operational capabilities for teams across AWS
• Collaborate with peers throughout the software development lifecycle, including design discussions, testing, documentation, deployment, and maintenance activities
• Debug and resolve technical issues across the development stack, actively participating in operational support and ensuring root causes are identified and addressed
• Innovate and Automate: Develop and implement innovative solutions to reduce repetitive tasks, building systems that minimize manual intervention, reduce cognitive load, and allow for proactive issue resolution. Build with technologies like Amazon Bedrock to reimagine reliability engineering.
• Enhance Regional Reliability: Expand regional coverage for AWS’s critical services.
• Deep Dive and Troubleshoot: Conduct deep dives into system and service interdependencies, proactively identifying and resolving region-specific challenges before they impact mission-critical operations.
• Mentorship and Growth: Collaborate with industry-recognized engineers, engaging in continuous learning and contributing to a culture of excellence and reliability.

A day in the life

Your typical day involves building features for internal tools that impact teams across AWS. You'll spend time writing code, reviewing pull requests from teammates, and collaborating in design discussions to solve technical challenges. You might debug an issue reported by an internal customer, implement a new capability requested by service teams, or refactor existing code to improve maintainability. Throughout the day, you'll engage with your team through standups and code reviews, learning from experienced engineers while contributing your own ideas and solutions.

You’ll help build and operate high-performing systems that will be critical in reducing operational burden for other AWS Dedicated Cloud teams, enhancing regional reliability through scalability, innovation, and automation. You will help us reimagine and continuously improve reliability engineering.

We care about your career growth and assign projects that help you develop engineering expertise, empowering you to take on increasingly complex challenges. Our team supports an inclusive culture where different perspectives drive innovation, and we strive for flexibility that enables you to bring your best to both work and life. Together, we're creating the foundational tools that enable AWS to continue innovating for customers worldwide.

About The Team

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.

AWS Infrastructure Services (AIS)

AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems, with thousands of variables impacting the supply chain — and we’re looking for talented people who want to help.

Inclusive Team Culture

Here at AWS, it’s in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion that empower us to be proud of our differences. Ongoing events and learning experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon conferences, inspire us to never stop embracing our uniqueness.

Work/Life Balance

We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve in the cloud.

Mentorship and Career Growth

We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional.

Diverse Experiences

Amazon values diverse experiences. Even if you do not meet all of the preferred 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.

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.

Basic Qualifications

• Associate's degree or above, or CND (Certified Network Defender) or GSEC (GIAC Security Essentials)
• Experience programming with at least one modern language such as C++, C#, Java, Python, Golang, PowerShell, Ruby
• Experience tools for automation (building, testing, releasing or monitoring)

Preferred Qualifications

• Knowledge of and proficiency in the use of Python scripting language
• Experience on highly concurrent, high throughput systems and knowledge of complex distributed systems

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

The base salary range for this position is listed below

Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location.

Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, CO, Denver - 99,100.00 - 160,000.00 USD annually

Company

Amazon Development Center U.S., Inc.

Job ID: A10550753