Software Developer 3

Preferred Qualifications

Linux Kernel Developer

We are looking for developers to improve and enhance Linux filesystems. An ideal candidate will have experience working with the Linux kernel community and demonstrated experience working with large or enterprise scale filesystems. Oracle Linux relies on three single-node (ext3, btrfs, xfs) and one cluster filesystem (ocfs2). Each of these filesystems receives active contributions from Oracle as we are focused on stability, performance, and diagnosability enhancements. Both ocfs2 and btrfs are Linux filesystems originally developed at Oracle.

Oracle’s Linux team develops on and contributes to upstream Linux to support our engineered system as well as Oracle’s Cloud infrastructure. Our team patches and enhances the Linux kernel and promotes the adoption of Linux at Oracle and in the industry in general. Developers in this role are expected to be active contributors to upstream Linux.

Through our experience with engineered systems such as the flagship Exadata, we created an additional kernel option, the Unbreakable Enterprise Kernel. Supporting engineered systems required us to be more innnovative and modern with the Linux kernel, and UEK is a Linux kernel which combines mainline Linux performance with enterprise stability. UEK has secured world record database benchmarks for Oracle and provides the fastest execution environment for Oracle products. This kernel is refreshed from upstream Linux every 18 months, ensuring that new features can be used by these products in a timely fashion.

Oracle Linux was created in 2006 to provide a Linux solution which was well-tested for enterprise products such as the Oracle Database, Middleware and applications, coupled with enterprise-level support. Oracle has been an active contributor to Linux since 1998, shipping the first ever commercial database on Linux and contributing multiple filesystems and feature enhancements. Our core focus is developing open source products and improving the stability and performance of the OS. Most projects for our team are in C, python, and bash shell. Projects initiated or led by Oracle include core Linux components: btrfs, the next generation Linux filesystem; OCFS2, a general purpose filesystem; t10 DIF, enforcing data integrity throughout the IO stack; and RDS, a reliable datagram socket replacement for UDP on Infiniband fabrics. A comprehensive listing of our open source contributions can be found on oss.oracle.com and oss.oracle.com/git.

You will be expected to have an open source focus and to contribute to and work with external developers, vendors and working groups.

5+ years of software design and development experience with distributed, highly-scalable, multi-node environments.

In-depth knowledge and product development experience working on the Linux Kernel or similar systems

Demonstrates advanced experience with C as well as strong experience with scripting languages such as Python, Perl, shell, etc.

Strong understanding of virtual machine technologies, networking and storage systems.

Strong troubleshooting and performance tuning skills.

A background in developing large scale compute or storage products a strong plus.

Advanced understanding of cluster architecture a strong plus.

Database knowledge is a plus but not required for this role

Detailed Description and Job Requirements

Design, develop, troubleshoot and debug software programs for databases, applications, tools, networks etc.

As a member of the software engineering division, you will assist in defining and developing software for tasks associated with the developing, debugging or designing of software applications or operating systems. Provide technical leadership to other software developers. Specify, design and implement modest changes to existing software architecture to meet changing needs.

Duties and tasks are varied and complex needing independent judgment. Fully competent in own area of expertise. May have project lead role and or supervise lower level personnel. BS or MS degree or equivalent experience relevant to functional area. 4 years of software engineering or related experience.

Oracle is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans status or any other characteristic protected by law.