Software Developer, Software Engineer, Full Stack Developer

Come join us at Terrestrial Energy, a US developer of advanced, Generation IV nuclear reactors. We are growing our workforce to develop and deploy our Integral Molten Salt Reactor (IMSR) small modular nuclear plant to provide cost-competitive, clean firm heat and power to industry.

The Company has recently completed a merger creating a publicly listed operating company (NASDAQ “IMSR”), to secure the capital resources for our next growth phase. With the current alignment of US Federal and State government, as well as industry interest in Small Modular Reactor (SMR) and advanced reactor technologies such as Terrestrial Energy’s IMSR, there is today a unique and compelling opportunity to participate in the execution of the company’s growth business plan.

The Company is building a team of high-performing business professionals and leaders in engineering, R&D, product management and business development areas at our Charlotte, North Carolina headquarters and future project sites. We are looking for talented individuals who can help build the organization, processes, and goal-orientated corporate culture to lead the company in our expansion. We are seeking people who:

• Have US market experience and perspectives bringing good judgement and innovative approaches to problem solving and business plan execution.
• Have demonstrated exceptional performance in past engineering projects.
• Offer exceptional leadership and team building capabilities.
• Have a deep understanding of the requirements for advanced reactor development.
• Can assist in the creation of the discipline and organized company structure, and contribute to a culture of excellence, necessary for the development and deployment of the Company’s IMSR plant.
• Can thrive in a fast growing and opportunity business environment, and are capable of flexibility and adaptability at a time of organizational change.
• Have the specific skillset and experience for the following role:

The Software Developer, under the direction of the Digital Engineering Manager, is primarily responsible for designing and delivering full-stack solutions that integrate applications, streamline data flow, and improve the performance, reliability, and efficiency of the organization's technology stack.

• Design, build, and maintain internal applications and services across the full stack – database, backend APIs, and user-facing frontends – for forecasting and planning tools, simulation orchestration, dashboards, and integration layers.
• Build integrations between commercial engineering tools (PLM, MBSE, SPDM, schedule, ERP) and internal applications via their APIs and data formats.
• Productionize models in collaboration with Data Science, taking notebook‑stage analyses to maintained services with appropriate testing, monitoring, and documentation.
• Own features end to end, from schema and API design through frontend implementation, deployment, and post‑release support.
• Apply software engineering rigour appropriate for a regulated environment, including version control, code review, automated testing, configuration management, traceability, and software V&V practices.
• Collaborate with Dev Ops and Engineering IT on deployment, environments, and infrastructure for engineering tooling.
• Contribute to architectural decisions as the Digital Engineering tool portfolio grows.

• Full‑stack development across database, backend, and frontend layers
• Python and Type Script, C#, or Java;
  React, Vue, or similar frameworks
• Software engineering best practices: testing, Git, CI/CD, APIs, and relational databases
• Cross‑functional technical communication:
  Experience working in an Agile environment

• Bachelor's degree in computer science, software engineering, or a related technical field, or equivalent demonstrated experience.
• 2 or more years of experience building and maintaining production‑quality internal tools or services that real users depend on.
• Demonstrated full‑stack delivery experience shipping applications that span database, backend, and frontend.

• Experience in nuclear, aerospace, defence, medical devices, or another regulated software environment, including…