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Senior Developer

Assystem

On-site
Riyadh, Riyadh Province
Full-time
Senior
Salary not listedPosted 54m ago

Real job — pulled straight from Assystem’s careers page · Verified November 10, 2026 · No reposts.

Job description

Assystem is hiring a Senior Developer — a full-time, based in Riyadh, Riyadh Province role. Apply directly on Assystem's careers page below.

Senior Developer

Location: Riyadh, Riyadh Province, sa

Company Description

Finding solutions to climate change is the priority of the 21st century, and means switching to low-carbon energy. At Assystem, our mission is to accelerate the energy transition worldwide. To achieve this, our 7,000 Switchers combine their historical engineering expertise and project management with digital technologies.

In our 12 countries (Europe, Middle East, Asia) of operation, we are working on the production and distribution of low-carbon electricity, through the development of nuclear and renewable energies. We are also supporting the modernisation and development of energy grids, managing the setup and siting for new transmission and distribution networks, and using hydrogen to decarbonise the transport and industry sectors.

Assystem in Türkiye, is renowned for working with the public and private sectors. Specializing in ESIA studies, site investigations, and laboratory research, the company offers vital site supervision owners and lenders engineering services. Notably, Assystem in Türkiye plays a pivotal role in major projects like power generation, and the construction of the Akkuyu nuclear power plant.

Job Description

  • Lead approved application development, customizations, and platform extensions in accordance with approved requirements and architecture.
  • Perform code reviews, enforce secure coding practices, and ensure adherence to development standards.
  • Develop and execute automated testing, unit testing, and support performance, regression, and security testing activities.
  • Investigate, troubleshoot, and resolve complex defects and Level 3 (L3) production incidents.
  • Prepare release packages and support deployment, rollback, and hypercare activities.
  • Maintain source code repositories, version control, and change management records.
  • Provide evidence of testing, code quality, deployment validation, and production defect resolution.
  • Conduct production issue analysis, root cause investigations, and corrective action implementation.
  • Document maintainable solutions, technical designs, configurations, and support procedures.
  • Support continuous improvement of application performance, reliability, security, and maintainability.

Qualifications

  • Deliver extensions, reports, APIs, integrations, and workflow automation for Oracle, engineering, SharePoint, Power Apps, Power Automate, BPM, and custom applications.
  • Demonstrate hands-on development of REST APIs, custom code, reports, and business-process automation.
  • Evidence Unreal Engine, Perforce, Pixel Streaming, and NVIDIA Omniverse development where assigned to visualization platforms.
  • Specify actual languages, frameworks, tools, and platforms used (e.g., C#, .NET, JavaScript, Python, SQL).
  • Clearly identify personal delivery contributions across design, development, testing, deployment, and support.
  • Demonstrate delivered solutions with measurable business or operational outcomes.

Additional Information

Please note the ideal candidate will have a reasonable experience in all the above highlighted tools and technologies. 

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

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Frequently asked questions

What skills are required for Senior Developer at Assystem?

The required skills for Senior Developer at Assystem include: Oracle, SharePoint, Power Automate, REST, Unreal, C#, .NET, JavaScript, Python, SQL.

What is the seniority level for Senior Developer at Assystem?

Senior Developer at Assystem is a Senior level position.

How do I apply for Senior Developer at Assystem?

You can view the full description and apply for Senior Developer at Assystem on EchoJobs: https://echojobs.io/job/assystem-senior-developer-3tauy.