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Apply for Runtime Engineer - Japan Position

Codeplay are looking to hire an experienced Runtime Engineer to support our Japanese customer base. The successful candidate will work remotely from their home but may be required to travel to customer sites if required.

Runtimes are key components to enable higher-level programming models such as SYCL to efficiently target various modern heterogeneous hardware platforms.

Your primary responsibilities will be to implement and improve runtime systems to target brand-new hardware such as GPUs, mobile CPUs and DSPs. Writing, testing, debugging and maintaining code, whilst interacting closely with other team members and clients, is a central part of the job.

Runtimes are usually implemented close-to-the-metal and interact directly with hardware and/or drivers as well as compilers. Actual driver work may also be involved. Each platform has its own eccentricities, and successful candidates will be able to investigate and implement solutions by working around quirks or exploiting them for performance, power or memory gains.

The position is available at various levels, from entry-level Software Engineer to Senior Principal Software Engineer, depending on your skills and experience. The position is permanent and will be based in Japan,although  you will work closely with our engineering team at our head office in Edinburgh. You will also have the opportunity to visit Edinburgh.Edinburgh is the bustling capital of Scotland, rated globally as the "most livable city in the world 2018," ranking top for quality of life and education as well as being a haven for heritage sites. Edinburgh always has an event on the go such as the famous Fringe festival. 

Salary range: Competitive & Negotiable. 

What We Offer

Codeplay is internationally recognized as being at the forefront of software development technology. Working at Codeplay offers unique opportunities and challenges to learn new technologies and to get involved in shaping the software industry. Codeplay's projects range from: creating tools and tool sets (optimizing compilers, debuggers, profilers, programming models & APIs, test systems/suites, etc.) for brand-new unannounced next-generation hardware; developing and optimizing current machine learning (TensorFlow™) and computer vision applications; research and development into lowering the power consumption of mobile devices; and contributing to new programming models and software standards (e.g. C++, SYCL™OpenCL™Vulkan® and SPIR™-V).

Codeplay is extensively working on the ClangLLVM and LLDB open-source compiler and debugger projects. We are building an ecosystem around the SYCL standard, including open source projects for computer vision, linear algebra, and C++ parallel programming APIs - see If you are excited about contributing to programming tools that will be used by developers worldwide, please get in touch!

  • Work on exciting brand-new technologies and standards with globally recognized customers.
  • Help to shape the future of the industry by contributing to open-source software, standardization efforts and Codeplay's products.
  • A friendly and relaxed working environment where colleagues respect and support each other. You will be working in a diverse team of creative and talented engineers from around the world.
  • Learn from experienced colleagues: our staff frequently give company-wide knowledge-sharing presentations on new software and technology trends, personal projects and other relevant subjects.
  • Work with modern code bases, with the freedom to choose platforms and tools to get the job done.
  • Great career prospects within a growing company
    • Positions are available at various levels, from the entry-level Software Engineer grade to Senior Principal Software Engineer, depending on your skills and experience.
    • We develop our engineers to progress quickly in their roles, and to take ownership of code, become technical experts, and/or lead teams. We provide training in skills such as project and people management, networking and delivering effective presentations.
    • Opportunities to get involved in Codeplay's very active research, enabling you to make an impact on the company's technology and future direction, and establish your industrial research track record by contributing to papers and publications.
    • Frequent opportunities to attend major worldwide industry conferences and developer meetings, represent the company, and become a recognized expert.
    • Flexible working hours, stock options and pension scheme.

Required Skills

  • Ability to develop robust, maintainable, efficient and testable code for secure and reliable systems
  • Minimise memory footprints, data movements, allocations and de-allocations
  • Develop correct, fast and scalable multithreaded and parallel programs
  • Craft cross-platform (Linux, Android and/or Windows) solutions
  • Profile and optimise performance and memory system usage
  • Learn new technologies and development approaches on the job
  • Excellent communication skills, both verbal and written

Beneficial Skills

Experience or understanding of several of the following would be highly desirable:

  • OpenCL/CUDA/C++AMP/other GPGPU language environment
  • The open-source Clang/LLVM compiler projects
  • OS-level and/or driver development
  • Object file formats
  • Assembly language
  • Games console/low-level graphics technology

Application Guidance

Any application which results in a job offer is conditional upon the candidate already having or successfully applying for the right to work in Japan.Codeplay is proud to be an Equal Opportunities employer. We celebrate and value diversity. We are committed to creating an inclusive environment for all employees, regardless of race, colour, gender, religion, national origin, ancestry, citizenship, disability, age, sexual orientation or any other characteristic protected by law. All employment is decided on the basis of qualifications, merit and business need and we strongly encourage applicants from all backgrounds and walks of life.


You should be hold  a degree in a relevant subject; however, if you can prove skills and knowledge through portfolio work, projects or previous employment, then a degree is not essential, but any relevant visa conditions may require proof of formal qualifications.

In order to progress your application we require all candidates to provide the following: CV, Cover Letter & C++ Code Samples (where relevant). Our system will only accept links to personal projects/GitHub accounts or PDF documents. 


Your application has been sent successfully. Someone should contact you within the next two working days to confirm we have received your application.


If you want to apply for multiple positions with this application, please select the relevant positions from below.
  • Runtime Engineer - Japan
  • Graduate Software Engineer
  • Intelligent RADAR Perception to Improve the Safety of Autonomous Vehicles - Data Lab Industrial Doctorate
  • C++ Software Engineer - Japan
  • Compiler Engineer - Japan


Open for Applications

Position Type


Date Posted

29 September 2020