Senior Draftsman 3D

The Senior Draftsman – Tekla 3D RC Modeller is responsible for delivering high-quality 3D reinforced concrete models and detailing using Tekla Structures for the most complex buildings of the EPR Nuclear Island on Sizewell C.

The role is primarily production-focused, with strong technical autonomy on RC modelling, working in close coordination with the Chief Draftsman and the BIM Coordinator within a BIM-managed and regulated nuclear environment.

Scope of Works – Nuclear Island Buildings

The role will primarily support modelling activities for Nuclear Island structures, including:

• Reactor Buildings and Common Raft
• Fuel Buildings
• Safeguard Buildings
• Airplane Crash-resistant Buildings

These structures involve very thick RC sections, high reinforcement densities, complex embedments, and stringent constructability constraints.

Key Responsibilities

3D RC Modelling & Detailing (Tekla)

• Develop and maintain 3D reinforced concrete models using Tekla Structures.
• Model complex RC elements, including:
  • Common rafts, basemats, thick walls and slabs
  • Highly congested reinforcement layouts
  • Openings, penetrations, embedments, and construction joints
• Produce RC detailing deliverables:
  • General Arrangement (GA) drawings
  • Reinforcement drawings
  • Bar Bending Schedules (BBS)
• Accurately implement engineering sketches, mark-ups, and design comments into the Tekla model.

BIM Environment & Coordination

• Work within a BIM-managed environment in accordance with the project BIM Execution Plan (BEP).
• Coordinate closely with:
  • Chief Draftsman / Lead RC Detailer for technical direction and prioritisation
  • BIM Coordinator for model federation, clash management, and exchanges
• Ensure Tekla models comply with:
  • Model structure and naming conventions
  • Required Level of Detail (LOD) and Level of Information (LOI)
• Support the resolution of clashes and interface issues identified during coordination reviews.

Quality, Nuclear Context & Compliance

• Deliver modelling outputs in compliance with:
  • Project procedures and nuclear quality requirements
  • Applicable design codes (Eurocodes, RCC-CW where applicable)
• Apply a strong nuclear safety culture in all modelling activities.
• Manage model revisions in line with document and model control processes.
• Support responses to design reviews and construction queries related to RC detailing.

• Proven experience in 3D reinforced concrete modelling using Tekla Structures.
• Strong understanding of RC detailing rules and constructability.
• Ability to interpret structural drawings, calculations, and engineering intent.
• Experience on large infrastructure or complex building projects.
• High level of accuracy, rigour, and quality awareness.
• Ability to work efficiently within a structured multidisciplinary team.

Desirable Experience

• Experience on nuclear or regulated projects.
• Exposure to EPR / HPC / SZC-type structures.
• Familiarity with BIM workflows and CDEs (e.g. ProjectWise).
• Experience dealing with dense reinforcement and safety-critical RC structures.