Senior Lead Designer / BIM Engineer II - Mechanical BIM modeller

📍 Job Overview

Job Title: Senior Lead Designer / BIM Engineer II - Mechanical BIM Modeller

Company: AtkinsRéalis

Location: Mumbai, India

Job Type: Full-Time

Category: Engineering / Construction Operations (BIM & CAD Specialization)

Date Posted: December 02, 2025

Experience Level: Senior (8-15 years)

Remote Status: Hybrid

🚀 Role Summary

• Lead the creation and refinement of mechanical BIM models and drawings, ensuring adherence to international and client-specific standards for complex Middle East projects.

• Drive coordination efforts for CAD and BIM outputs across multiple engineering disciplines, facilitating seamless integration and conflict resolution.

• Utilize advanced BIM and CAD software proficiency to translate engineering calculations and design intent into accurate, compliant, and high-quality deliverables.

• Contribute to the end-to-end project lifecycle, from initial design concepts through to detailed construction documentation, within a dynamic, commercially focused environment.

📝 Enhancement Note: This role is positioned as a Senior Lead Designer / BIM Engineer II, indicating a need for significant technical expertise and the ability to guide junior team members. The focus on Middle East projects suggests a requirement for understanding regional standards and client expectations. The "Mechanical BIM Modeller" title explicitly defines the core technical function within the broader engineering operations context.

📈 Primary Responsibilities

• Develop and produce detailed mechanical BIM models and associated CAD drawings with minimal supervision, ensuring accuracy and compliance with project specifications.

• Proactively coordinate CAD and BIM model inputs from various disciplines (e.g., architecture, structural, electrical, plumbing) to identify clashes, resolve design conflicts, and optimize integrated project delivery.

• Prepare and effectively present technical progress reports, design concepts, and coordination meeting outcomes to project stakeholders, including engineers, clients, and other team members.

• Apply a deep understanding of industry-standard CAD and BIM protocols, including client-specific requirements and internal company standards, to ensure all deliverables meet Project, Client, and BIM compliance.

• Collaborate closely with engineers to interpret calculations, specifications, and design intent, translating them into precise drawings and 3D models that support construction and operational phases.

• Conduct thorough technical reviews and checks of CAD and BIM outputs produced by the team, ensuring quality, accuracy, and adherence to standards before issuance.

• Manage assigned tasks efficiently, ensuring timely completion within allocated budgets and resources, while maintaining high standards of quality and detail.

• Demonstrate flexibility in adapting to evolving project requirements, work tasks, and potential location adjustments as dictated by project needs.

📝 Enhancement Note: The responsibilities emphasize a blend of technical execution (modelling, drawing production), coordination (multi-disciplinary), and communication (presentations, stakeholder interaction). The requirement for minimal supervision and competent checking points towards a senior-level contributor capable of independent work and quality assurance.

🎓 Skills & Qualifications

Education:

Experience:

• A minimum of 8 to 15 years of progressive experience in mechanical BIM modelling and CAD drafting, specifically within the building design and construction sectors.

Required Skills:

• Advanced Mechanical BIM Modelling: Proficiency in creating complex 3D BIM models for mechanical systems (HVAC, plumbing, fire protection) using industry-leading software.

• AutoCAD Expertise: Comprehensive knowledge and practical application of AutoCAD for producing 2D drawings, schematics, and layouts.

• BIM Standards & Protocols: Deep understanding and practical application of BIM standards (e.g., ISO 19650, LOD specifications) and ability to interpret and implement various regional and client-specific BIM requirements.

• Engineering Drawing Interpretation: Proven ability to accurately read, interpret, and derive information from engineering drawings, technical specifications, and design documents.

• 3D Modelling & Visualization: Skill in developing detailed 3D models from engineering calculations and design briefs, suitable for coordination, clash detection, and visualization.

• Building Design Processes: Familiarity with the typical workflows and considerations within building design environments, including interdisciplinary coordination.

• Electronic Data Management Systems (EDMS): Working knowledge of standard EDMS platforms for document control, version management, and workflow tracking.

Preferred Skills:

• Experience with specific Middle East building codes and design practices.

• Familiarity with other relevant design software or analysis tools.

• Knowledge of project management principles and practices within a consulting engineering context.

• Experience in checking and validating BIM models and drawings.

• Ability to train or mentor junior BIM modellers.

📝 Enhancement Note: The required skills are heavily focused on technical proficiency in BIM and CAD software, alongside the ability to understand and apply complex engineering and project standards. The experience range suggests a role that demands both hands-on execution and a level of technical leadership.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated BIM Modelling Excellence: Showcase a range of complex mechanical BIM models, clearly illustrating proficiency in creating detailed, coordinated, and clash-free models for HVAC, plumbing, and fire protection systems. Highlight project complexity and scale.

• CAD Drawing Quality: Present examples of high-quality 2D CAD drawings produced from BIM models or directly from design briefs, demonstrating accuracy, adherence to layering standards, and clarity of information.

• Interdisciplinary Coordination Case Studies: Include examples or descriptions of how you have contributed to multi-disciplinary coordination efforts, including methods used for clash detection, issue resolution, and integration with architectural and structural models.

• Standards Compliance: Evidence of applying specific industry, client, or internal BIM/CAD standards in your work. This could be demonstrated through annotations, project documentation, or a clear explanation of how standards were met.

Process Documentation:

• Workflow Design & Optimization: Be prepared to discuss your approach to establishing and optimizing BIM and CAD workflows, including how you ensure efficiency, accuracy, and compliance from project inception to handover.

• Implementation & Automation: Articulate experience with implementing BIM execution plans and any methods used for automating repetitive tasks within the CAD/BIM environment to enhance productivity.

• Measurement & Performance Analysis: Discuss how you track the performance and quality of your BIM/CAD outputs, and how you use data or feedback to drive continuous improvement in your processes and deliverables.

📝 Enhancement Note: For a Senior BIM Engineer role, a portfolio is crucial. It should not just showcase the final output but also the thought process, the technical challenges overcome, and the ability to work within established processes and standards. Demonstrating an understanding of workflow and quality control is key for a senior position.

💵 Compensation & Benefits

Salary Range:

Benefits:

• Comprehensive Life Insurance Coverage: Provides financial security for your beneficiaries.

• Premium Medical Insurance: Extended coverage for you and your dependents, ensuring access to quality healthcare.

• Generous Annual Leave Balance: Ample paid time off for rest, rejuvenation, and personal commitments.

• Flexible and Hybrid Work Solutions: Options to blend on-site and remote work, promoting work-life balance.

• Remote Work Opportunities: Possibility of working remotely for specific periods, potentially outside of the country, subject to project and company policy.

• Company Gratuity Scheme: A retirement benefit scheme provided by the company.

• Discretionary Bonus Program: Performance-based financial incentives.

• Relocation Assistance: Support for candidates who need to relocate to Mumbai for the role.

• Employee Wellbeing Program: Access to 24/7 specialists for support in finance, legal matters, family care, personal health, fitness, and nutrition.

Working Hours:

• The standard working hours are typically 40 hours per week, aligning with industry norms. However, the role also offers flexibility with hybrid work solutions, allowing for a balance between office-based and remote work, which can accommodate project-specific needs and personal schedules.

📝 Enhancement Note: The salary estimate is based on industry research for senior engineering roles in India, factoring in the specific technical niche of BIM modelling and the international project exposure. The benefits listed are comprehensive and reflect a strong employee value proposition, with particular emphasis on health, financial security, and work-life balance.

🎯 Team & Company Context

🏢 Company Culture

Industry: Engineering Services, Construction, Nuclear, Infrastructure. AtkinsRéalis operates across a broad spectrum of critical global sectors, with a significant focus on large-scale infrastructure and energy projects. The Middle East MEP Business specifically targets high-rise towers, leisure, hospitality, and mixed-use developments, demanding a high level of technical precision and project management.

Company Size: Large Enterprise (Global presence with thousands of employees). This size indicates a structured organization with established processes, extensive resources, and opportunities for diverse career paths. For operations roles, it means working within a robust framework, potentially with specialized teams for different functions.

Founded: 1911 (Atkins) and 1956 (SNC-Lavalin, now AtkinsRéalis). This long history signifies stability, extensive experience, and a deep understanding of the engineering and construction industry, fostering a culture of enduring expertise and innovation.

Team Structure:

• The role is within the Atkins Global Technology Centre (GTC) in Mumbai, part of the Middle East MEP Business. This suggests a centralized hub for technical expertise and project delivery support, likely comprising specialized teams for various disciplines (MEP, Structural, Architecture).

• Reporting is expected to be to a BIM Manager or a Lead Engineering Manager, with close collaboration with project engineers, architects, and other BIM/CAD specialists.

Methodology:

• Data-Driven Design: Emphasis on using BIM as a data-rich environment to inform design decisions, perform analysis, and support lifecycle management.

• Integrated Project Delivery (IPD): A collaborative approach that aligns all stakeholders early in the process to optimize project outcomes through shared goals and responsibilities.

• Agile Project Management Principles: While not explicitly stated, the need for flexibility and proactive initiative hints at an adoption of agile methodologies for managing project tasks and responding to changes.

Company Website: https://www.atkinsrealis.com/

📝 Enhancement Note: The company's global reach and long history suggest a professional, process-driven environment. The Mumbai GTC likely serves as a critical delivery hub for international projects, requiring adherence to global standards while leveraging local talent. The emphasis on MEP and complex projects implies a highly technical and collaborative team.

📈 Career & Growth Analysis

Operations Career Level: This role is classified as "Senior Lead Designer / BIM Engineer II," placing it at a senior individual contributor level. It requires a strong technical foundation with 8-15 years of experience, implying leadership in technical execution and potentially some oversight or mentoring of junior staff. The "Lead" designation suggests the ability to take ownership of specific design packages or coordination efforts.

Reporting Structure: The BIM Engineer will likely report to a BIM Manager or a Senior Engineering Manager within the GTC. They will collaborate closely with Mechanical Engineers, Project Managers, and potentially architects and structural engineers on multi-disciplinary projects.

Operations Impact: As a Mechanical BIM Modeller, the impact is directly on the quality, accuracy, and efficiency of the mechanical system designs. This role is critical in:

• Reducing clashes and rework during construction through effective BIM coordination.

• Ensuring compliance with project specifications and international standards, mitigating risks.

• Improving visualization and understanding of complex mechanical systems for all stakeholders.

• Contributing to accurate cost estimations and project timelines through precise modelling.

Growth Opportunities:

• Technical Specialization: Deepen expertise in advanced BIM software, specific mechanical system design (e.g., complex HVAC for data centers, high-rise plumbing systems), or emerging technologies like generative design.

• BIM Management Track: Progress towards roles such as Senior BIM Coordinator, BIM Manager, or BIM Director, focusing on strategy, standards development, team leadership, and process implementation across larger projects or divisions.

• Project Engineering/Design Leadership: Transition into a Mechanical Design Engineer or Lead Mechanical Designer role, taking on broader design responsibilities beyond modelling and coordination, potentially including calculations and system specification.

• Cross-Disciplinary Roles: Leverage BIM expertise to move into roles focused on integrated design processes, digital transformation within engineering, or project management for technically complex projects.

• International Project Exposure: Continue to work on high-profile Middle East projects, gaining valuable experience and potentially opportunities for international assignments or secondments.

📝 Enhancement Note: The career path for a senior BIM specialist is typically towards BIM management, advanced technical specialization, or a hybrid role combining design leadership with BIM expertise. The "II" in the title suggests a defined progression within the Senior Lead Designer band.

🌐 Work Environment

Office Type: The role is based in Mumbai at "Embassy 247 Park," likely a modern, professional office complex designed to accommodate large corporate teams. This typically means a well-equipped workspace with collaborative zones and standard office amenities. Given the "Hybrid Work Solutions" benefit, it suggests a flexible approach to office presence.

Office Location(s): Embassy 247 Park, Mumbai, India. This location places the individual within a major business hub in India, offering access to talent, infrastructure, and a dynamic professional ecosystem.

Workspace Context:

• Collaborative Design Hub: The workspace will likely foster collaboration among BIM modellers, engineers, and other design professionals, with designated areas for team meetings, design reviews, and informal discussions.

• Technology-Centric Environment: Expect access to high-performance workstations, multiple monitors, and the necessary software licenses for advanced BIM and CAD applications. Network infrastructure will support efficient data transfer and collaboration on large project files.

• Interdisciplinary Interaction: Opportunities to engage daily with colleagues from various engineering disciplines, fostering a holistic understanding of project development and promoting effective problem-solving through diverse perspectives.

Work Schedule: While the core working hours are standard (e.g., 40 hours/week), AtkinsRéalis emphasizes "Flexible and hybrid work solutions." This implies a degree of autonomy in managing one's schedule, with the expectation of meeting project deadlines and attending critical meetings, whether in person or virtually. This flexibility is particularly beneficial for operations roles that often require focused, uninterrupted work periods for complex tasks.

📝 Enhancement Note: The emphasis on hybrid work solutions and a modern office environment suggests a progressive workplace that balances the need for focused technical work with collaborative interaction, catering to the demands of complex engineering operations.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: An HR or Talent Acquisition representative will likely conduct an initial screening call to assess basic qualifications, experience alignment, and cultural fit. Be prepared to articulate your career trajectory and interest in AtkinsRéalis.

• Technical Interview (BIM/CAD Focus): This will be a critical stage, likely involving senior BIM specialists or engineering managers. Expect in-depth questions about your experience with specific BIM software (Revit, Navisworks), AutoCAD, BIM standards, and your approach to mechanical modelling and coordination. You may be asked to walk through specific projects from your portfolio.

• Portfolio Presentation: A dedicated session where you present selected projects from your portfolio. Focus on demonstrating your technical skills, problem-solving abilities, coordination experience, and understanding of standards. Prepare to explain your role, challenges faced, and solutions implemented.

• Team/Manager Interview: A discussion with the hiring manager or potential team leads to assess your fit within the team dynamics, problem-solving approach, communication skills, and leadership potential. This may also include scenario-based questions.

• Final Round: Potentially a discussion with a senior leader or HR for final assessment and offer discussion.

Portfolio Review Tips:

• Curate Selectively: Choose 3-4 of your most relevant and impactful projects that showcase the breadth of your skills (complex modelling, coordination, adherence to standards) and experience (8-15 years).

• Highlight Your Role: Clearly define your specific contributions within each project. Use "I" statements when describing your actions and achievements.

• Demonstrate Process: Don't just show the final model. Explain your workflow, how you interpreted specifications, how you coordinated with other disciplines, and how you ensured quality and compliance.

• Quantify Impact: Where possible, quantify the benefits of your work (e.g., "Identified and resolved X clashes, potentially saving Y hours of rework," "Ensured 100% compliance with client's BIM Execution Plan").

• Visuals are Key: Use high-quality screenshots, renders, and potentially short video walkthroughs of your models. Ensure clarity and avoid cluttered visuals.

• Be Prepared for Technical Deep Dives: Anticipate questions about specific software features, tools used for coordination (e.g., Navisworks), and your understanding of BIM standards.

Challenge Preparation:

• Scenario-Based Questions: Be ready for questions like: "How would you approach coordinating mechanical systems in a complex high-rise tower with limited ceiling space?" or "What steps would you take if you discovered a significant clash late in the design process?"

• Technical Problem-Solving: Prepare to discuss how you approach troubleshooting common BIM modelling issues or resolving discrepancies between design intent and model output.

• Communication & Collaboration: Practice articulating technical concepts clearly to both technical and non-technical audiences. Be ready to discuss how you handle disagreements or differing opinions within a project team.

📝 Enhancement Note: The application process for a senior technical role like this will heavily rely on demonstrating practical expertise through a portfolio and technical interviews. Candidates should prepare to articulate their methodologies and problem-solving skills in detail.

🛠 Tools & Technology Stack

Primary Tools:

• Autodesk Revit: The core BIM authoring tool for creating parametric 3D models of mechanical systems (HVAC, piping, etc.). Proficiency in system families, family creation, and template management is expected.

• Autodesk Navisworks: Essential for model aggregation, clash detection, coordination reviews, and creating 4D/5D simulations. Experience in setting up clash detection rules and generating clash reports is vital.

• AutoCAD: For 2D drafting, producing layouts, schematics, and working with legacy data. Strong understanding of AutoCAD functionalities, layering, and drawing standards is required.

• Microsoft Office Suite (Word, Excel, PowerPoint): For documentation, reporting, data analysis, and presentations. Excel proficiency is particularly important for data management and basic analysis.

Analytics & Reporting:

CRM & Automation:

• EDMS (Electronic Data Management System): Such as Aconex, ProjectWise, or similar platforms for managing project documentation, workflows, and version control. Experience in navigating and utilizing these systems for document submission and retrieval is expected.

• Potential for other collaboration platforms: e.g., Microsoft Teams, Slack, depending on internal company standards.

📝 Enhancement Note: The technology stack is heavily focused on the Autodesk suite for BIM and CAD, which is standard in the AEC industry. Proficiency in Navisworks for coordination is a critical component for this role, highlighting the importance of integrated project delivery.

👥 Team Culture & Values

Operations Values:

• Excellence in Delivery: A commitment to producing high-quality, accurate, and compliant BIM models and drawings that meet rigorous international standards. This translates to meticulous attention to detail and a drive for technical perfection.

• Collaboration and Teamwork: A strong emphasis on working effectively within multi-disciplinary teams, fostering open communication, and actively contributing to shared project goals. This means valuing input from others and being a supportive team member.

• Innovation and Continuous Improvement: Encouraging the adoption of new technologies, workflows, and best practices to enhance efficiency, quality, and project outcomes. This involves a proactive approach to learning and adapting.

• Client Focus: Understanding client needs and expectations, and ensuring that all deliverables are aligned with project requirements and contractual obligations. This perspective drives the quality and relevance of the work produced.

• Integrity and Professionalism: Upholding high ethical standards in all interactions and work, demonstrating accountability for tasks, and maintaining a professional demeanor.

Collaboration Style:

• Integrated Design Approach: Encouraging early and continuous collaboration between disciplines to resolve issues proactively and optimize the design. This means frequent communication and joint problem-solving sessions.

• Constructive Feedback Culture: A willingness to both provide and receive constructive feedback on designs and processes to drive continuous improvement. This involves open dialogue and a focus on learning from each other.

• Knowledge Sharing: Promoting the exchange of best practices, technical insights, and lessons learned within the team and across projects to elevate the collective expertise of the group.

📝 Enhancement Note: AtkinsRéalis, as a large global engineering firm, likely promotes a culture of professionalism, technical excellence, and collaboration. The values emphasize delivering high-quality work while fostering a supportive and innovative team environment.

⚡ Challenges & Growth Opportunities

Challenges:

• Managing Complex Multi-Disciplinary Coordination: Effectively integrating mechanical systems with architectural constraints, structural elements, and other MEP services in large, complex projects requires meticulous attention to detail and strong coordination skills.

• Adhering to Diverse Standards: Navigating and applying a multitude of industry, client, and internal BIM/CAD standards across different projects can be demanding. Staying updated and ensuring compliance requires diligence.

• Keeping Pace with Evolving Technology: The BIM landscape is constantly evolving. Staying proficient with the latest software versions, plugins, and workflows is an ongoing challenge that requires continuous learning and adaptation.

• Balancing Speed and Accuracy: Delivering high-quality, coordinated BIM models and drawings within tight project deadlines requires efficient workflows and effective time management.

Learning & Development Opportunities:

• Advanced BIM Software Training: Opportunities to deepen expertise in Revit, Navisworks, and potentially explore other BIM-related software or plugins for specialized tasks.

• Industry Certifications: Pursuing certifications related to BIM, specific software proficiency, or project management to enhance professional credentials and expertise.

• Cross-Disciplinary Learning: Gaining a broader understanding of architectural, structural, and other engineering disciplines through collaboration, which can lead to more holistic design contributions.

• Mentorship Programs: Access to experienced senior engineers and BIM managers for guidance on technical skills, career development, and project best practices.

• Exposure to Global Best Practices: Working on significant Middle East projects provides exposure to international standards and methodologies, broadening professional horizons.

📝 Enhancement Note: The challenges are typical for senior BIM roles in large-scale engineering projects, highlighting the need for strong technical, coordination, and adaptability skills. The growth opportunities are geared towards continuous professional development and career advancement within the BIM and engineering fields.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex mechanical BIM coordination challenge you faced on a recent project and how you resolved it. What tools did you use, and what was the outcome?" (Focus on your problem-solving process, technical tools, and ability to achieve project goals.)

• "How do you ensure your BIM models are compliant with both international standards and specific client requirements?" (Highlight your understanding of standards, documentation review process, and proactive approach to compliance.)

• "Walk me through your typical workflow for producing mechanical BIM models for a large-scale project, from receiving design intent to issuing final drawings." (Detail your systematic approach, software usage, quality checks, and understanding of project phases.)

Company & Culture Questions:

• "What interests you about working for AtkinsRéalis, and specifically on Middle East projects?" (Research AtkinsRéalis's project portfolio, values, and market presence. Connect your career aspirations to their work.)

• "How do you contribute to a positive and collaborative team environment?" (Provide examples of your teamwork, communication, and support for colleagues.)

Portfolio Presentation Strategy:

• Tell a Story: For each project, explain the context, the challenge, your specific role and actions, the solution implemented, and the positive outcome or impact.

• Focus on Coordination: Emphasize instances where you successfully coordinated mechanical systems with other disciplines, effectively detected and resolved clashes, and contributed to an integrated design.

• Demonstrate Technical Depth: Be prepared to answer detailed questions about the software you used, specific modelling techniques, and your understanding of BIM execution plans.

• Showcase Quality Control: Explain how you ensured the accuracy and quality of your deliverables, including any checking processes you followed.

• Keep it Concise: Aim for 5-7 minutes per project to allow ample time for Q&A.

📝 Enhancement Note: Interview preparation should focus on demonstrating not only technical proficiency but also problem-solving capabilities, communication skills, and an understanding of how BIM contributes to broader project success within a large engineering firm.

📌 Application Steps

To apply for this operations position:

• Submit your application through the provided Workday link, ensuring all fields are completed accurately.

• Portfolio Customization: Tailor your resume and cover letter to specifically highlight your 8-15 years of experience in mechanical BIM modelling and CAD, emphasizing projects relevant to large-scale building designs, ideally with Middle East exposure. Clearly list your proficiency in Revit, AutoCAD, and Navisworks.

• Resume Optimization: Ensure your resume uses keywords found in the job description (e.g., "Mechanical BIM Modeller," "AutoCAD," "BIM Standards," "Multi-disciplinary Coordination," "3D Modelling," "Middle East Projects"). Quantify your achievements wherever possible, focusing on efficiency gains, clash resolutions, or compliance successes.

• Portfolio Preparation: Assemble a digital portfolio that showcases your best work, focusing on complex mechanical BIM models, coordination examples, and high-quality CAD drawings. Include a brief description for each project detailing your role, the challenges, and the solutions. Be ready to present this during an interview.

• Company Research: Familiarize yourself with AtkinsRéalis's recent projects, company values, and their work in the Middle East region. Understand their approach to BIM and integrated design. This will help you tailor your responses during interviews and demonstrate genuine interest.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.