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Research Software Engineer - Mid Level

Date: Jun 14, 2022

Location: OAK RIDGE, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 8269 



Oak Ridge National Laboratory (ORNL) is the United States Department of Energy's largest science and energy laboratory tasked to provide the United States government agencies and departments with technology and expertise to support national and homeland security needs. 


Our diverse capabilities span scientific and engineering disciplines, enabling the Laboratory to explore fundamental science challenges and to carry out the research needed to accelerate the delivery of solutions to the marketplace. 


We invite applications for the position of Research Software Engineer in the Computational Chemistry and Nanomaterials Group within the Computational Sciences and Engineering Division. This group focuses on computational science and engineering to directly address chemical, condensed matter, and combined systems on the quantum mechanical scale. We lead development of the next generation of high-quality high-performance scientific software to do so. With ORNL’s world class computing resources we have unique opportunities to research and engineer mathematically rich, high performance and concurrency, maintainable, and extensible open-source codes. This position will support several of these efforts.


Job Duties and Responsibilities:

  • Contribute to the development of open-source software for scientific projects and original research including scientific papers, reports, and other artifacts.
  • Work closely with stakeholders to meet their software requirements, address bugs, and achieve their scientific goals.
  • Deploy, maintain, and support web applications, servers, and cloud development platforms in support of scientific projects.
  • Participate in the roadmap, vision, and strategy for enhancing software quality.
  • Mentor students to help them grow.
  • Participate in developing the strategic direction of research software engineering at ORNL.


Basic Requirements:

  • PhD or MS in computer science, physics, chemistry, engineering, or a related technical field.
  • 3+ years of experience with modern C++ (C++11 or newer).
  • Prior experience developing and contributing to large, complex software systems.
  • Proven ability to work on a team in a dynamic group environment with frequent delivery targets.
  • Linux, command line shell, git and IDE or multibuffer editor competency.
  • 5+ years software development experience in computational science, engineering, computer science, or applied math.
  • Excellent communication and writing skills, including the ability to express both concrete and abstract algorithm and application design using UML or similar means.
  • Experience with development workflows, accepting and giving constructive review of code.
  • Familiarity with testing methodologies and tools (google test, catch, etc.)
  • Ability to write high quality unit, integration and system level tests, targeting both manual and automated testing processes.


Preferred Requirements:

  • One on one communication between developers occurs daily, teams meet frequently, projects practice Continuous Integration, and frequent merging of source is expected.
  • Activity within the broader open-source software community would be looked upon favorably but is not required.
  • Experience using other languages, including the following: CMake, Python, Fortran, Java or other JRE languages, JavaScript.
  • Familiarity with development tooling such as debuggers (lldb, gdb, ARM forge), automatic formatting (clang-tidy) and static analysis packages.
  • Experience with modern DevOps i.e. containerization and virtual machines, cloud resources and API’s such as AWS and OpenStack.
  • Familiarity with Agile concepts and practices.


 Code Sample: 

An open-source code sample and/or a project source control repository you have contributed significantly to that may be used for evaluation purposes will be requested during the application process. These should be related in some way to the subject of this post. It should be your sole work (in the case of a code sample) to a very high degree (>95%) or in the case of a larger project contain significant modules of code you contributed to. Ideally, the code sample would be made available on GitHub or a similar sharing platform, although submissions by email are also acceptable.


ORNL Ethics and Conduct:

As a member of the ORNL scientific community, you will be expected to commit to ORNL's Research Code of Conduct. Our full code of conduct and a statement by the Lab Director's office can be found here:


Benefits at ORNL:  

UT Battelle offers an exceptional benefits package to include matching 401K, Pension Plan, Paid Vacation, and Medical / Dental plan. Onsite amenities include Credit Union, Medical Clinic and free Fitness facilities.   



UT Battelle offers a wide range of relocation benefits for individuals and families to make it easier to come and work here. If you are invited to interview, please ask your Recruiter about relocating with ORNL. 


UT-Battelle is recognized by our employees and the community as an inclusive environment where diversity is valued and individuals and teams are inspired to contribute fully to the organization's success. ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.







This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

Nearest Major Market: Knoxville