You're using an older version of Internet Explorer that is no longer supported. Please update your browser.

Software Development Engineer II, JDK / Amazon Corretto

Full Time
3 days ago
Job summary
Do you like your code to be as tight and optimized as it can be? Do you have deep knowledge of the Java language and how its internals work? Do you love writing code used by millions of developers or maybe you already have experience writing structural or common code in popular libraries? The Amazon Corretto team is looking for engineers to work on the JDK libraries, improving performance and adding features to OpenJDK.

As a member of the team, you will have the opportunity to contribute to Corretto, OpenJDK, and successfully running Amazon and AWS customers' services. As a JDK developer on the Corretto team, you will work closely with application owners to identify opportunities for improving and optimizing the JDK, based on real-world usage and performance data. You will help to set the direction in which to work, proposing ideas and developing proofs-of-concept that demonstrate where the benefits lie. To do this effectively, you will be diving into potentially new areas of the JDK to learn how they work in detail. You will also work in the open with the OpenJDK and Corretto communities to bring as many improvements as possible to upstream OpenJDK for the benefit of all Java developers and application owners.

About the team
Amazon Corretto is Amazon's distribution of OpenJDK, used to run our thousands of Java services and also deployed by many AWS customers. The Corretto team is focused on improving OpenJDK for all Java users by focusing on performance, particularly on ARM64 as used by AWS' Graviton range of processors, and features like the Generational Shenandoah garbage collector. We work with the community to help maintain the Long-Term Supported (LTS) versions of OpenJDK as well as contribute to the bleeding edge. We are looking to expand the Corretto team to participate even more in the community and contribute to the long-term success of OpenJDK as a platform.

While Corretto is a relative newcomer to the scene, our team is composed of OpenJDK Authors, Committers, and Reviewers, some with decades of experience in JDK, languages, compilers, and managed runtimes. We learn about where to invest in OpenJDK from running some of the world's largest Java services. We are firm believers in Open Source and are looking for like-minded people who are interested in working in the open with the community.

EVEN IF YOU ONLY MEET SOME OF THE REQUIREMENTS, OR BELIEVE YOU AREN'T EXPERIENCED ENOUGH, WE ARE STILL INTERESTED IN HEARING FROM YOU. We believe that a solid technical foundation and a strong interest in the subject matter can make you successful on the team and we have the opportunities to help you learn and grow in this space. Knowledge and experience in related technologies are generally applicable and valuable.

Java is used for the majority of services in Amazon and nearly all public-facing AWS services. Because of this, we have a vested interest in running the best-possible JDK in areas like security and performance. In 2018, the AWS JDK team migrated Amazon's default JDK to OpenJDK. In order to do this we built rigorous security and quality mechanisms around OpenJDK. We are now able to apply security and Amazon custom patches to the internal OpenJDK as soon as they're available. In early 2019, we took this work public and launched Amazon Corretto, our distribution of OpenJDK. With Corretto, we make our work on OpenJDK available to our customers and the OpenJDK community at large.

About AWS Platform
AWS has the most services and more features within those services, than any other cloud provider-from infrastructure technologies like compute, storage, and databases-to emerging technologies, such as machine learning and artificial intelligence, data lakes and analytics, and Internet of Things. AWS Platform is the glue that holds the AWS ecosystem together. Whether its Identity features such as access management and sign on, cryptography, console, builder & developer tools, and even projects like automating all of our contractual billing systems, AWS Platform is always innovating with the customer in mind. The AWS Platform team sustains over 750 million transactions per second.

We have a formal mentor search application that lets you find a mentor that works best for you based on location, job family, job level etc. Your manager can also help you find a mentor or two, because two is better than one. In addition to formal mentors, we work and train together so that we are always learning from one another, and we celebrate and support the career progression of our team members.

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. Amazon's culture of inclusion is reinforced within our 14 Leadership Principles, which remind team members to seek diverse perspectives, learn and be curious, and earn trust.

Work-Life Balance

We offer flexibility in working hours and encourage you to find your own balance between your work and personal life.


• 2+ years of non-internship professional software development experience
• Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
• 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
• Bachelor's Degree in Computer Science or related field or equivalent experience to a Bachelor's degree based on 3 years of work experience for every 1-year of education.


• Masters degree or higher in Computer Science or related field.
• Experience contributing to open source projects, preferably contributing to a runtime or widely used library.
• Experience taking a leading role in building complex software systems that have been successfully delivered to customers.
• Practice of modern software engineering, including coding standards, code reviews, source control management, build processes, testing, and releasing.
• Experience with distributed computing and enterprise-wide system operations.
• Experience in communicating with users, other technical teams, and senior management to collect requirements, describe software product features, technical designs, and product strategy.
• Experience mentoring junior software engineers and make them more effective.
• Experience influencing software engineers' best practices in your organization.
• Hands-on expertise in many disparate technologies, typically ranging from front-end user interfaces through to back-end systems and all points in between.

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, disability, age, or other legally protected status. If you would like to request an accommodation, please notify your Recruiter.
Software and Programming