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Amazon Web Services Software Development Engineer - AWS X-Ray in Seattle, Washington


Job summary

Do you want to be in the center of the service that make it easier for thousands of developers and DevOps engineers all over the world to characterize the performance and behavior of their micro-service based systems when running within AWS?

AWS X-Ray enables AWS customers to instrument their services and trace requests through their code as well as the underlying AWS services on which they may run. It generates a service graph of all contributing service elements, and within the easy to use console experience allows the diagnosis of high API latencies and/or errors by descending into the details of any individual request. Our mission is to deliver and scale such a service to very large numbers of customers each of whom may be running at extremely large request rates, and perform sophisticated time-series analysis in near real-time.

The AWS X-Ray team is looking for talented software developers who are passionate about distributed system challenges at scale, want to work on some of the cutting-edge technologies like machine learning, anomaly detection, causality analysis, and work backwards to define the optimal user experience.

Work/Life Balance

Our team puts a high value on work-life balance. We are flexible when people need to work from home during the week, but still enjoy working together from the office on some days.

On-Call Responsibility

This position involves on-call responsibilities, however our team does not own production infrastructure. As a result, we get paged outside of business hours very rarely compared to more typical oncall rotations.

Mentorship & Career Growth

Our team is dedicated to supporting new team members. Our team has a broad mix of experienced levels and Amazon tenures, and we are building an environment that celebrates knowledge sharing and mentorship. Our senior engineers truly enjoy mentoring more junior engineers and engineers from non-traditional backgrounds through one-on-one mentoring and thorough, but kind, code reviews.

We care about your career growth. We try to assign projects and tasks 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

Our team is intentional about attracting, developing, and retaining amazing talent from diverse backgrounds. Yes we do get to build a really cool service, but we also think a big reason for that is inclusive and welcoming culture we try to cultivate every day.

We are looking for a new teammate who is enthusiastic, empathetic, curious, motivated, reliable, and able to work effectively with a diverse team of peers; someone who will help us amplify the positive & inclusive team culture we've been building.

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 host annual and ongoing learning experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon (gender diversity) conferences. Amazon’s culture of inclusion is reinforced within our 16 Leadership Principles, which remind team members to seek diverse perspectives, learn and be curious, and earn trust.

Key job responsibilities

Maintain open-source SDKs and Agents by working with the AWS X-Ray community and experts from other companies on improvements and fixes to industry-standard client libraries.

Work with other AWS Service teams to help them onboard with X-Ray, and build tooling that will make onboarding the next service easier than the last.

Continuously learn and grow in the rapidly evolving field of distributed tracing, the newest pillar of observability while it is still in the early days of adoption.


  • 1+ years of experience contributing to the system design or architecture (architecture, design patterns, reliability and scaling) of new and current systems.

  • 2+ years of non-internship professional software development experience

  • Programming experience with at least one software programming language.


  • Master's degree in Computer Science.

  • 2+ years of experience in developing high-performance client-side libraries across a variety of languages and architectures, or in developing highly scalable backend systems.

  • Familiarity with developing web services and applications using caches, databases (e.g. DynamoDB), and API development.

  • Ability to discuss trade-offs of different storage technologies, and indexing of semistructured datasets.

  • Experience in open-source project maintenance or leadership.

  • A self-starter who is motivated to take ownership of projects.

Amazon is committed to a diverse and inclusive workplace. Amazon is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. For individuals with disabilities who would like to request an accommodation, please visit