Principal Designer

📍 Job Overview

Job Title: Principal Designer

Company: Webuild S.p.A.

Location: Perth, Western Australia, Australia

Job Type: Full-time

Category: Engineering / Design Operations

Date Posted: 22 May 2026

Experience Level: 10+ Years (Senior/Principal)

Remote Status: Hybrid

🚀 Role Summary

• Lead technical design deliverables for significant power generation projects, ensuring alignment with project objectives and company standards.

• Drive efficiency and accuracy in mechanical and piping design processes, from concept through to execution phases (FEED, EPC).

• Manage and mentor design teams, deputizing for the Chief Mechanical/Piping Engineer to ensure high-quality technical output.

• Collaborate effectively with cross-functional stakeholders to achieve timely, cost-effective, and fit-for-purpose engineering solutions.

• Foster a culture of innovation and safety within the design engineering function, driving continuous improvement in design methodologies and technology adoption.

📝 Enhancement Note: The role title "Principal Designer" and the responsibilities outlined, particularly deputizing for the Chief Engineer and managing technical deliverables on large-scale projects like K2 power, indicate a senior-level position requiring significant leadership and technical expertise. The emphasis on FEED and EPC experience, along with specific industry sectors (oil & gas, LNG, minerals processing, petrochemical), positions this role within the domain of complex engineering design operations, often falling under the broader umbrella of Project Engineering or Technical Operations.

📈 Primary Responsibilities

• Technical Leadership: Act as the primary technical authority for mechanical and piping design, deputizing for the Chief Mechanical/Piping Engineer on the Kwinana Gas Power Generation 2 (K2) project.

• Design Delivery Management: Oversee and be accountable for the performance and timely delivery of mechanical and piping design/drafting services, ensuring adherence to agreed project budgets and schedules.

• Technical Compliance & Quality Assurance: Ensure the technical correctness of all design outputs, verifying compliance with company standards, project specifications, relevant legislation, and industry best practices.

• 2D/3D Design Execution: Lead the development and execution of detailed 2D drawings, 3D models, piping isometrics, and other necessary design documentation.

• Procurement Documentation: Develop and manage Material Take-Offs (MTOs), Bills of Materials (BoMs), and other essential documents to support procurement activities.

• Workpack & Documentation Support: Assist in the development of workpacks, sketches, registers, lists, and schedules required for project execution and handover.

• Layout & Separation Standards: Independently define equipment and piping layouts, ensuring adequate separations that comply with project standards, safety regulations, and relevant legislation.

• Piping Specification Management: Manage the development and administration of piping specifications and catalogues within systems like SMAT and Bulkload, including S3D project administration.

• Stakeholder Engagement: Work closely with internal and external stakeholders to understand requirements, provide technical guidance, and ensure alignment on design outputs.

📝 Enhancement Note: The responsibilities clearly delineate a senior design engineering role focused on the technical execution and management of mechanical and piping aspects of a major energy project. The mention of SMAT, Bulkload, and S3D administration points to a need for practical, hands-on experience with specific industry-standard design and asset management software, common in large-scale engineering operations. The focus on MTOs, BoMs, and procurement documents highlights the role's integration with the supply chain and project execution phases.

🎓 Skills & Qualifications

Education:

• Relevant tertiary qualifications (e.g., Diploma in Mechanical Engineering TAFE, Certificate in Mechanical Engineering) are preferred.

Experience:

• Minimum of 15 years of progressive design experience in major projects within the oil & gas, LNG, minerals processing, and/or petrochemical industries.

• Proven track record of delivering complex projects within Australia is essential.

Required Skills:

• Advanced Mechanical & Piping Design: Deep expertise in the design of complex mechanical systems and piping layouts for industrial facilities.

• 2D Drafting & 3D Modelling Proficiency: Mastery in industry-standard 2D drafting and 3D modeling software (e.g., AutoCAD, PDS, PDMS, SP3D).

• Procurement Documentation Expertise: Proven ability to generate accurate Material Take-Offs (MTOs) and Bills of Materials (BoMs).

• Piping Specification & Catalogue Management: Strong understanding and practical experience in developing and managing piping specifications and bulk data within design software.

• Design Standards & Compliance: Thorough knowledge of engineering design standards, codes (e.g., ASME, API), and regulatory compliance requirements in Australia.

• Project Lifecycle Experience: Comprehensive understanding of the full project lifecycle from concept and FEED through to EPC and construction support.

• Technical Leadership & Mentoring: Ability to lead design teams, provide technical guidance, and deputize for senior engineering roles.

Preferred Skills:

• S3D Administration: Experience with SmartPlant 3D (S3D) administration and project setup.

• SMAT & Bulkload Expertise: Familiarity with specific tools like SMAT and Bulkload for managing piping specifications and catalogues.

• Power Generation Project Experience: Specific experience on power generation projects, particularly gas-fired or combined-cycle plants.

• Risk Management: Understanding of design risk identification and mitigation strategies.

• Cost Control Awareness: Knowledge of how design decisions impact project budgets and cost-effectiveness.

📝 Enhancement Note: The requirement for 15+ years specifically in oil & gas, LNG, minerals processing, and petrochemical industries, coupled with proven Australian experience, signifies a highly specialized and senior role. The preference for specific software administration (S3D, SMAT, Bulkload) indicates a need for candidates who can not only design but also manage the underlying data and configuration of design tools, a critical function in large-scale engineering operations. The "10+" AI-derived experience level is a conservative estimate; the "15 years" requirement clearly places this at a Principal or Lead level.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Design Case Studies: Showcase detailed examples of complex mechanical and piping design projects undertaken from concept through to EPC, highlighting your specific contributions and technical solutions.

• 3D Model & Drawing Samples: Provide visual examples of your work in 2D drafting and 3D modeling, demonstrating proficiency in layout, isometric generation, and detail design.

• Procurement Documentation Examples: Include samples of MTOs and BoMs that you have developed, demonstrating accuracy and completeness.

• Process Improvement Initiatives: Detail instances where you identified and implemented improvements in design workflows, software usage, or documentation processes, quantifying the impact (e.g., time savings, cost reduction, error reduction).

• Technical Compliance Documentation: Evidence of ensuring designs adhere to relevant codes, standards, and project-specific requirements.

Process Documentation:

• Workflow Design & Optimization: Demonstrate experience in designing, documenting, and optimizing mechanical and piping design workflows, ensuring efficiency and integration across project phases.

• Standardization & Template Development: Showcase contributions to developing or implementing design standards, templates, and best practices to ensure consistency and quality.

• System Administration & Configuration: Provide evidence of managing or configuring design software (e.g., S3D, SMAT, Bulkload) to support project requirements and improve design efficiency.

• Performance Measurement: Explain how you have tracked and reported on design team performance, focusing on key metrics related to schedule adherence, budget compliance, and quality.

📝 Enhancement Note: For a Principal Designer role, a portfolio is critical. It should not just contain examples of work but also demonstrate strategic thinking about process improvement, software management, and technical compliance. The emphasis on "Process Improvement Initiatives" and "System Administration & Configuration" reflects the operational aspect of managing design resources and workflows, not just individual design tasks.

💵 Compensation & Benefits

Salary Range:

Benefits:

• Competitive Remuneration Package: A comprehensive salary structure reflecting the seniority and expertise required.

• Industry-Leading Paid Parental Leave: Generous parental leave from the day of joining, supporting work-life balance.

• Flexible and Remote Work Options: Hybrid work arrangements to balance office-based collaboration with personal commitments.

• Ongoing Learning and Development: Access to continuous professional development through platforms like Engineers Australia, AIM Training, and LinkedIn Learning.

• On-site Amenities: Excellent end-of-trip facilities and a free on-site gym.

• Health and Well-being: Comprehensive mental health and well-being programs.

• Exclusive Offers: Special discounts on private health insurance, salary packaging, banking, and retail.

• Project Exposure: Opportunity to work on a range of iconic and nation-building projects within the infrastructure, energy, and resources sectors.

• Salary Continuance Insurance: Protection for income in case of extended illness or injury (criteria apply).

Working Hours:

• Standard full-time hours are expected, likely around 40 hours per week, with potential for overtime depending on project demands. The hybrid work arrangement offers flexibility in managing these hours.

📝 Enhancement Note: The salary range is a high-level estimate based on the seniority, location (Perth, Australia, which has a high cost of living and competitive engineering market), and specialized industry experience (15+ years in oil & gas, LNG, etc.). The benefits listed are directly from the job description and are strong selling points for senior engineering talent. The "Hybrid" AI work arrangement is inferred from "Flexible and remote work options" and the nature of a "Principal" role that requires both focused work and collaboration.

🎯 Team & Company Context

🏢 Company Culture

Industry: Infrastructure, Energy, and Resources. Webuild in Australia operates as a significant entity comprising Webuild, Clough, and e2o, focusing on delivering large, complex projects.

Company Size: A large, multinational corporation with a substantial presence in Australia, indicated by the breadth of its operations and project portfolio. This size offers stability and extensive career development pathways.

Founded: While the founding date of Webuild S.p.A. is not directly provided, the company's long history in delivering major infrastructure projects suggests a deep-rooted expertise and established reputation. Clough, a key part of the Australian operations, has a significant legacy in the region.

Team Structure:

• Operations Team: The Principal Designer will be part of the Engineering Team, likely reporting to a Chief Mechanical/Piping Engineer or Engineering Manager.

• Cross-Functional Collaboration: Close collaboration is expected with project management, procurement, construction, safety, and other engineering disciplines (e.g., structural, electrical, process).

• Project-Specific Teams: The role will involve working within dedicated project teams, such as the one for the K2 power project, requiring adaptability and strong team dynamics.

Methodology:

• Data-Driven Decision Making: Emphasis on using data and technical analysis to inform design choices and ensure project objectives are met.

• Process Optimization: A commitment to continuous improvement in engineering and design processes to enhance efficiency, safety, and cost-effectiveness.

• Innovation & Technology: Harnessing innovative engineering solutions and adopting new technologies to deliver projects safely and sustainably.

• Sustainability Focus: Integration of sustainable practices throughout the project lifecycle, aligning with broader company goals.

Company Website: https://jobs.webuildgroup.com/

📝 Enhancement Note: The company description highlights a strong focus on "nation-building projects" and a "sustainable future," indicating an operational ethos that values long-term impact and responsible project delivery. The structure of Webuild in Australia (Webuild, Clough, e2o) suggests a large, integrated organization with diverse capabilities, offering senior engineers exposure to a wide range of project complexities and operational environments.

📈 Career & Growth Analysis

Operations Career Level: Principal Designer represents a senior-level technical expert within the design engineering function. This role is typically one step below a Chief Engineer or Technical Director, focusing on leading complex design work and deputizing for higher-level management. It involves significant responsibility for technical integrity, team guidance, and project execution.

Reporting Structure: The Principal Designer will report to a Chief Mechanical/Piping Engineer or a senior Engineering Manager. They will, in turn, lead and mentor a team of mechanical and piping designers and drafters.

Operations Impact: This role has a direct and significant impact on project success. The quality, accuracy, and timeliness of mechanical and piping designs directly influence project costs, safety, constructability, and operational performance. Effective leadership in this role can drive substantial cost savings, prevent delays, and ensure the long-term reliability of critical infrastructure like the K2 power station.

Growth Opportunities:

• Technical Specialization: Deepen expertise in specific areas of mechanical or piping design, or power generation technologies, potentially leading to roles like Chief Designer or Technical Authority.

• Project Leadership: Transition into broader project engineering or management roles, leveraging design expertise to oversee larger project scopes.

• Team Management: Grow into formal leadership positions, managing larger engineering departments or disciplines.

• Cross-Disciplinary Development: Gain exposure to other engineering disciplines or project phases, broadening skill sets for more holistic project involvement.

• Mentorship & Training: Become a key mentor for junior engineers and designers, contributing to the development of the next generation of talent within the organization.

📝 Enhancement Note: The "Principal" title signifies a deep technical track for career progression, distinct from a purely managerial path. This role is crucial for operational excellence in engineering, ensuring technical standards are met while driving efficiency. The growth opportunities focus on both deepening technical expertise and expanding into project leadership, common paths for senior operations professionals in engineering firms.

🌐 Work Environment

Office Type: Hybrid work environment, combining office-based collaboration with remote work flexibility. The Perth office likely offers modern facilities designed for collaborative engineering work.

Office Location(s): Perth, Western Australia. This location is a hub for major resource and energy projects, providing excellent access to industry networks and project sites.

Workspace Context:

• Collaborative Spaces: The office environment is expected to facilitate teamwork, with meeting rooms, design review areas, and open-plan spaces designed for interaction among design teams and other disciplines.

• Technology & Tools: Access to high-performance workstations, advanced design software (S3D, CAD), and robust IT infrastructure necessary for handling large-scale 3D models and complex project data.

• Team Interaction: Regular opportunities for direct interaction with peers, senior engineers, project managers, and potentially clients, fostering a dynamic and engaging work atmosphere.

Work Schedule: Standard full-time work schedule (approximately 40 hours per week) with flexibility offered through the hybrid arrangement. This allows for effective management of project deadlines while accommodating personal needs.

📝 Enhancement Note: The "Hybrid" work arrangement is a key feature, balancing the need for face-to-face collaboration on complex design issues with the flexibility often sought by senior professionals. The Perth location is strategic for the energy and resources sector in Australia.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Review of CV and application, focusing on meeting the minimum experience and technical requirements.

• Technical Interview(s): In-depth discussions with engineering managers and senior technical staff to assess technical expertise, problem-solving skills, and understanding of design principles and processes. Expect questions on mechanical/piping design challenges, codes, and standards.

• Portfolio Review: Presentation and discussion of your professional portfolio, highlighting key projects, design solutions, and process improvements. This is a critical stage for a Principal Designer.

• Cultural Fit & Behavioral Assessment: Interviews to gauge alignment with company values, collaboration style, and leadership potential. Questions may be competency-based, focusing on past experiences.

• Final Interview: Potentially with a senior executive or department head for final approval.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your most impactful projects that best represent your skills in mechanical/piping design, FEED, and EPC phases, particularly in relevant industries.

• Quantify Impact: For each project, clearly articulate your role, the challenges faced, the solutions implemented, and the measurable outcomes (e.g., cost savings, schedule improvements, risk reduction, safety enhancements).

• Showcase Process Thinking: Include examples of how you've improved design workflows, implemented new tools, or standardized processes. Highlight your experience with S3D administration or similar system management.

• Prepare for Technical Deep Dives: Be ready to discuss the technical intricacies of your chosen projects, including specific design choices, code interpretations, and problem-solving approaches.

• Demonstrate Leadership: Use examples that showcase your ability to lead teams, mentor junior staff, and deputize for senior roles.

Challenge Preparation:

• Design Scenario: You may be presented with a hypothetical design problem or a section of a project for which you need to outline your approach, key considerations, and potential solutions. Focus on your methodology, risk assessment, and stakeholder engagement.

• Process Improvement Task: A task might involve analyzing a given design process and proposing improvements for efficiency, quality, or safety.

• Technical Problem Solving: Be prepared to discuss how you would approach a specific technical challenge related to piping stress, equipment layout, or material selection.

📝 Enhancement Note: The emphasis on a portfolio review and potential technical challenges highlights the senior technical nature of this role. Candidates should be prepared to not only discuss their experience but also demonstrate it through concrete examples and structured presentations. The "Application & Portfolio Review Process" section is tailored to a senior engineering design role, focusing on technical depth and practical application.

🛠 Tools & Technology Stack

Primary Tools:

• 3D Design Software: Extensive experience with industry-leading 3D modeling platforms such as SmartPlant 3D (S3D), PDMS, or similar. Proficiency in S3D administration is highly desirable.

• 2D Drafting Software: Mastery of AutoCAD or equivalent for detailed drawings and isometrics.

• Piping Design Tools: Expertise in specialized tools for piping stress analysis (e.g., CAESAR II) and potentially fluid dynamics simulation.

• Specification Management Systems: Experience with tools like SMAT and Bulkload for managing piping specifications and component catalogues.

Analytics & Reporting:

• MTO & BoM Generation: Proficiency in generating accurate Material Take-Offs and Bills of Materials directly from 3D models or design databases.

• Performance Tracking: Ability to utilize project management and design management systems to track design progress, identify bottlenecks, and report on key performance indicators (KPIs).

• Data Visualization: Familiarity with tools for presenting design data and project status effectively to stakeholders.

CRM & Automation:

• Project Management Software: Experience with tools for project scheduling, resource allocation, and progress tracking (e.g., Primavera P6, MS Project).

• Data Management Systems: Understanding of how design data is managed, stored, and accessed within a larger project information management system.

📝 Enhancement Note: The specific mention of S3D administration, SMAT, and Bulkload indicates a need for candidates who understand the operational aspects of design software, including data management and configuration, not just user-level operation. This is crucial for ensuring consistency and efficiency in large, complex projects.

👥 Team Culture & Values

Operations Values:

• Safety First: A paramount commitment to health, safety, and environmental (HSE) standards in all design and operational activities.

• Integrity & Accountability: Upholding high ethical standards and taking ownership of responsibilities and project outcomes.

• Innovation & Continuous Improvement: Encouraging new ideas, embracing technological advancements, and consistently seeking ways to enhance processes and deliverables.

• Collaboration & Teamwork: Fostering a supportive environment where diverse teams work together effectively to achieve common goals.

• Sustainability: Integrating environmentally responsible practices and solutions into project design and execution.

Collaboration Style:

• Cross-Functional Integration: Proactive engagement with all project stakeholders to ensure seamless integration of mechanical and piping design with other disciplines and project functions.

• Open Communication: Encouraging transparent and direct communication channels to address challenges, share knowledge, and build strong working relationships.

• Constructive Feedback: A culture that values constructive feedback for continuous improvement in design quality and team performance.

• Problem-Solving Focus: A collective approach to identifying and resolving design and project execution issues.

📝 Enhancement Note: The company's emphasis on sustainability, innovation, and a strong HSE culture is indicative of a modern, responsible engineering organization. The Principal Designer's role in fostering collaboration and upholding these values within the design team is key to operational success.

⚡ Challenges & Growth Opportunities

Challenges:

• Managing Complex Project Demands: Balancing multiple priorities, tight deadlines, and stringent technical requirements on large-scale projects like K2.

• Integrating Diverse Stakeholder Needs: Effectively reconciling the requirements and expectations of various internal and external stakeholders.

• Adapting to Evolving Technologies: Staying abreast of and integrating new design software, tools, and methodologies to maintain efficiency and competitiveness.

• Ensuring Technical Integrity Across Disciplines: Maintaining high standards of mechanical and piping design while ensuring seamless integration with other engineering disciplines in a complex project environment.

• Mentoring and Developing Talent: Effectively guiding and developing junior designers, ensuring knowledge transfer and capability building within the team.

Learning & Development Opportunities:

• Advanced Technical Training: Access to specialized courses and certifications in advanced piping design, stress analysis, or specific project technologies.

• Leadership Development Programs: Opportunities to enhance leadership, project management, and strategic thinking skills through internal programs and external courses.

• Industry Engagement: Participation in industry conferences, workshops, and professional bodies (e.g., Engineers Australia) to stay current and network.

• Exposure to Diverse Projects: Working on a range of iconic projects across different sectors (infrastructure