Design Manager

📍 Job Overview

Job Title: Design Manager

Company: Costain Group

Location: Camberley, England, United Kingdom

Job Type: Full-time

Category: Engineering & Design Management

Date Posted: November 3, 2026

Experience Level: Mid-Senior Level (Implied 5-10 years)

Remote Status: Hybrid (Implied)

🚀 Role Summary

• Spearhead the end-to-end design and engineering delivery for complex water and wastewater infrastructure projects within the Thames Valley and Thames South regions, encompassing both capital maintenance and new build schemes.

• Lead and manage multidisciplinary design engineering teams, ensuring the timely, on-budget, and technically compliant delivery of innovative and sustainable engineering solutions.

• Drive the integration of buildability, supply chain efficiency, and constructability into design outputs through robust collaboration with clients, internal teams, and external stakeholders.

• Champion adherence to safety, sustainability, and regulatory standards, including CDM Regulations, throughout the entire project lifecycle and design development process.

📝 Enhancement Note: The "Design Manager" title, combined with responsibilities like managing design teams, ensuring technical compliance, budget adherence, and supporting construction, firmly places this role within the engineering and project management domain, with a strong emphasis on the operational execution of design. The context of water and wastewater projects and frameworks suggests a focus on infrastructure operations and asset management.

📈 Primary Responsibilities

• End-to-End Design Delivery: Oversee the complete design lifecycle, from initial definition of need and optioneering through solution development, value engineering, detailed design, and critical construction support for water and wastewater projects.

• Team Leadership & Management: Lead, mentor, and manage discipline-specific design engineers, fostering a collaborative environment to develop and deliver robust technical solutions that meet project objectives.

• Budgetary & Risk Control: Establish, monitor, and forecast design budgets, implementing robust cost control measures for design changes to maximize cost efficiency and ensure projects remain within financial parameters.

• Stakeholder & Supply Chain Collaboration: Cultivate and maintain strong, collaborative working relationships with clients, internal project teams, construction staff, and supply chain partners to optimize design outputs for buildability and efficiency.

• Compliance & Sustainability: Ensure all design solutions are safe, sustainable, and compliant with relevant regulations, particularly the Construction (Design and Management) Regulations (CDM), and align with the program's systems and governance procedures.

• Programme & Schedule Management: Define design programme timescales in conjunction with Project Managers and Principal Design Managers, regularly reporting on progress and providing necessary metrics and narrative updates.

• Design Documentation & Planning: Organize and document all required work, establishing and maintaining comprehensive Design Management Plans and Project Execution Plans.

• Quality Assurance: Implement and manage design quality control processes to ensure the highest standards are met throughout the design development and delivery phases.

📝 Enhancement Note: The responsibilities clearly outline a senior role focused on the strategic and operational management of the design process within a project delivery framework. Emphasis on "optioneering," "value engineering," "buildability," and "supply chain efficiency" indicates a need for a proactive, solutions-oriented approach beyond basic design oversight.

🎓 Skills & Qualifications

Education:

• Essential: Bachelor's degree in Engineering (Civil, Mechanical, or Electrical) or a relevant Engineering/Management Apprenticeship with substantial industry experience.

• Desirable: Chartered status (MICE, IMechE, MCIOB, or equivalent) and related Project Management or Risk Management training.

Experience:

• Demonstrated experience in managing design quality control processes.

• Proven ability to deliver design and tender packages to program, budget, and quality requirements.

• Experience in managing significant design changes and understanding of associated workflows.

• Experience operating Electronic Document Management Systems (EDMS) and understanding design workflows. Required Skills:

• Civil/Mechanical/Electrical Engineering Acumen: Strong academic foundation and practical understanding of engineering principles relevant to water and wastewater infrastructure.

• Design Management Expertise: Proven track record in managing complex design processes, ensuring technical compliance, and delivering projects within defined constraints.

• CDM Regulations Knowledge: Comprehensive understanding of responsibilities and requirements under CDM Regulations for ensuring safe design and construction.

• Collaborative Teamwork: Ability to collaborate effectively within multidisciplinary and diverse teams, fostering positive working relationships to achieve project goals.

• Budget & Schedule Management: Proficiency in establishing, monitoring, and controlling design budgets and programme timescales.

• Risk Management: Ability to identify, assess, and manage risks associated with design solutions and project delivery.

Preferred Skills:

• Contractual Acumen: Demonstrable understanding of basic legal, contractual principles, and construction law.

• Influence & Negotiation: Confidence and ability to assert influence within project teams and with stakeholders; basic negotiating skills.

• Contractual Correspondence: Experience in drafting effective contractual correspondence and facilitating collaborative solutions.

• EDMS Proficiency: Familiarity with Electronic Document Management Systems and their role in design workflows.

• Proactive Mindset: A growth mindset with the ability to adapt proactively to changing project scenarios and challenges.

📝 Enhancement Note: The emphasis on chartered status and specific engineering disciplines points to a need for deep technical expertise. The inclusion of "growth mindset," "adaptability," and "influence" suggests a requirement for strong soft skills beyond technical proficiency, crucial for managing complex stakeholder environments in infrastructure projects.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Design Management Case Studies: Showcase examples of successfully managed design processes for water/wastewater or similar infrastructure projects, detailing your role, challenges, and outcomes.

• Budget & Schedule Control Examples: Provide evidence of your ability to establish, monitor, and control design budgets and programme timescales, demonstrating cost efficiency and on-time delivery.

• Risk & Compliance Documentation: Include examples of how you have managed design risks and ensured compliance with regulations like CDM, highlighting your process for documentation and mitigation.

• Collaboration & Stakeholder Management Evidence: Present examples of successful collaboration with multidisciplinary teams, clients, and supply chain partners, demonstrating your ability to foster efficient working relationships.

Process Documentation:

• Design Management Plan (DMP) / Project Execution Plan (PEP) Samples: Demonstrate experience in organizing work and documenting these critical project plans, outlining key sections like scope, roles, responsibilities, risk management, and communication protocols.

• Design Change Management Procedures: Illustrate your methodology for recording, monitoring, and controlling design changes to maximize cost efficiency and minimize project impact.

• Quality Control Process Documentation: Provide examples of how you have implemented and managed design quality control processes, ensuring adherence to standards and technical compliance.

📝 Enhancement Note: For a Design Manager role, a portfolio should reflect not just design output but also the management of the design process. This includes demonstrating strategic planning (DMP/PEP), risk mitigation, budget adherence, and collaborative stakeholder engagement, all crucial for operationalizing design within a project.

💵 Compensation & Benefits

Salary Range:

• Estimated Range: £60,000 - £85,000 per annum (UK, based on experience level, location, and industry benchmarks for Design Managers in infrastructure projects).

• Explanation: This estimate is derived from research of similar Design Manager roles within the UK construction and engineering sectors, considering the specified responsibilities, the employer's industry (infrastructure, water), and the implied experience level of 5-10 years. Specific project complexity and the candidate's exact qualifications can influence the final offer.

Benefits:

• Disability Confident Employer Scheme: Commitment to offering interviews to candidates who disclose a disability and meet the minimum criteria, promoting inclusivity.

• Comprehensive Health & Safety: Robust occupational health and safety programs to ensure employee well-being.

• Pension Scheme: Competitive pension contributions to support long-term financial planning.

• Professional Development: Opportunities for training, professional accreditation (e.g., Chartered status support), and career advancement within Costain.

• Holiday Entitlement: Generous annual leave allowance, with potential for additional days based on service.

• Life Assurance: Company-provided life assurance cover.

Working Hours:

• Standard: Approximately 40 hours per week.

• Flexibility: While a core working week is expected, hybrid arrangements may offer some flexibility, particularly for tasks that can be performed remotely. However, site presence and client/team engagement will be critical.

📝 Enhancement Note: The salary range is an estimate based on industry standards for a Design Manager with 5-10 years of experience in the UK infrastructure sector. Benefits are inferred from typical offerings by large engineering firms and the explicit mention of the "Disability Confident employer" status.

🎯 Team & Company Context

🏢 Company Culture

Industry: Smart Infrastructure Solutions (Energy, Water, Transportation, Defence). Costain focuses on integrated, leading-edge solutions for UK national infrastructure needs.

Company Size: Large Enterprise (Implied by Costain Group's established presence and project scale).

Founded: Costain Group has a long history, founded in 1865, indicating a stable, established company with deep industry experience.

Team Structure:

• Design Management Team: You will work within a team of Design Managers, either embedded within a major project or delivering multiple schemes as part of a framework.

• Reporting Line: You will report to a Principal or Senior Design Manager, indicating a structured hierarchy within the design function.

• Cross-Functional Collaboration: The role necessitates close collaboration with Project Managers, discipline engineers, construction teams, clients (Thames Water), and supply chain representatives.

Methodology:

• Integrated Solutions: Costain emphasizes integrated, leading-edge, smart infrastructure solutions across the asset lifecycle.

• Data-Driven Optimization: Focus on digitally optimized solutions and asset optimization to improve client business performance (capacity, customer service, resilience, decarbonization, efficiency).

• Strategic Focus: Prioritizes working with blue-chip clients on projects underpinned by strategic national needs and regulatory commitments.

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

📝 Enhancement Note: Costain's positioning as a "smart infrastructure solutions company" implies a forward-thinking approach to engineering and project delivery, likely integrating digital tools and sustainable practices. The emphasis on national strategic needs suggests a commitment to impactful, long-term projects.

📈 Career & Growth Analysis

Operations Career Level: This role represents a mid-to-senior level position within the design and engineering management function. It requires significant experience in managing design processes and teams, moving beyond individual technical contribution to strategic oversight and project delivery leadership.

Reporting Structure: You will report to a Principal or Senior Design Manager, indicating a clear path for mentorship and progression. This structure also suggests that senior leadership is focused on high-level strategy and oversight, delegating operational design management to this role.

Operations Impact: The Design Manager is pivotal in ensuring that the engineering solutions delivered are not only technically sound but also cost-effective, sustainable, and constructible. This directly impacts project profitability, client satisfaction, safety outcomes, and the long-term performance and resilience of critical national infrastructure assets.

Growth Opportunities:

• Senior Design Manager/Principal Design Manager: Progression to managing larger, more complex projects or frameworks, with increased strategic responsibility and team oversight.

• Project Management: Transition into a broader Project Management role, leveraging design and engineering expertise to oversee all facets of project delivery.

• Technical Specialization: Deepen expertise in a specific area of water/wastewater engineering or design management methodologies.

• Commercial/Contractual Roles: Develop skills in commercial management, contract negotiation, and dispute resolution within major projects.

• Leadership Development Programs: Costain likely offers formal programs to develop leadership capabilities for senior roles.

📝 Enhancement Note: The role is positioned as a critical operational link between strategic planning and physical execution. Growth opportunities lean towards increased leadership scope, project responsibility, and potential diversification into commercial or broader project management functions.

🌐 Work Environment

Office Type: Hybrid. While the role is project-based and likely requires regular site visits and client engagement, the "hybrid" designation suggests a blend of remote work capabilities and office-based collaboration.

Office Location(s): Primarily focused on the Thames Valley and Thames South regions of the UK, with the Camberley office serving as a key operational hub.

Workspace Context:

• Collaborative Hubs: Expect to work in project offices, potentially co-located with client teams (Thames Water) and construction personnel, fostering a dynamic, integrated environment.

• Technology & Tools: Access to standard engineering design software, project management tools, and likely an Electronic Document Management System (EDMS) for documentation and workflow management.

• Team Interaction: Frequent interaction with a diverse team of engineers, project managers, and commercial staff, requiring strong communication and interpersonal skills.

Work Schedule:

• Standard: Primarily a 40-hour work week.

• Flexibility: While core hours will be expected, the hybrid nature may allow for some flexibility in daily scheduling, provided project demands, site visits, and stakeholder meetings are met. Project deadlines can necessitate extended hours during critical phases.

📝 Enhancement Note: The "hybrid" nature for a project-based role in infrastructure suggests that on-site presence and client interaction are paramount, with remote work likely focused on administrative, planning, and documentation tasks that do not require physical presence.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Review of CV and application, focusing on alignment with essential qualifications and experience.

• Technical Interview: Discussion with a Senior Design Manager or Principal Engineer to assess technical knowledge, understanding of design processes, CDM regulations, and problem-solving abilities. Expect scenario-based questions related to design challenges, budget control, and risk management.

• Portfolio Review: Presentation and discussion of your professional portfolio, focusing on specific project examples that demonstrate your experience in managing design delivery, stakeholder engagement, and achieving project objectives.

• Cultural Fit / Behavioral Interview: Assessment of your adaptability, collaborative approach, growth mindset, and alignment with Costain's values and culture, potentially with a hiring manager or HR representative.

• Final Interview: May involve senior leadership or key project stakeholders to confirm suitability and discuss overall project fit.

Portfolio Review Tips:

• Structure for Impact: Organize your portfolio around key projects, clearly articulating your role, the project's objectives, the challenges faced, your specific contributions (design management strategies, problem-solving), and the quantifiable results achieved (e.g., cost savings, schedule adherence, compliance achieved).

• Demonstrate Process Mastery: Highlight your ability to manage the entire design lifecycle, including optioneering, value engineering, risk assessment, and change control. Showcase examples of Design Management Plans or Project Execution Plans you have developed or contributed to.

• Quantify Achievements: Whenever possible, use metrics to demonstrate your impact. For example, "Reduced design change costs by X% through implementing a rigorous change control process," or "Ensured 100% compliance with CDM regulations across Y projects."

• Showcase Collaboration: Include examples of how you have effectively collaborated with diverse teams, managed client expectations, and integrated supply chain input into the design process.

• Tailor to the Role: Emphasize experience relevant to water/wastewater infrastructure and CDM regulations, as these are core to the position.

Challenge Preparation:

• Scenario-Based Problems: Be prepared for questions that present hypothetical design management challenges (e.g., a significant design conflict, budget overrun, or client change request) and ask how you would approach resolving them.

• CDM Compliance Scenarios: Prepare to discuss how you ensure CDM compliance in practice, including risk assessments, design reviews, and coordination with Principal Designers and contractors.

• Value Engineering & Optimization: Think about how you identify opportunities for value engineering and optimize designs for cost, sustainability, and buildability.

📝 Enhancement Note: The interview process for a Design Manager will heavily scrutinize both technical competence and project leadership skills. A strong portfolio showcasing process management, problem-solving, and quantifiable results is essential.

🛠 Tools & Technology Stack

Primary Tools:

• CAD/BIM Software: Proficiency with industry-standard Computer-Aided Design (CAD) and Building Information Modeling (BIM) software (e.g., AutoCAD, Revit, Civil 3D) for reviewing and understanding design outputs.

• Project Management Software: Experience with project management platforms for scheduling, task tracking, and resource allocation (e.g., Microsoft Project, Primavera P6).

• Collaboration Platforms: Familiarity with tools like Microsoft Teams, Slack, or similar for team communication and collaboration.

Analytics & Reporting:

• Cost Management Software: Tools for budget tracking, forecasting, and cost control (e.g., Costain's internal systems, or general ERP/financial software).

• Reporting Dashboards: Ability to interpret and contribute to project dashboards that track key performance indicators (KPIs) related to design progress, budget, schedule, and risk.

CRM & Automation:

• Electronic Document Management System (EDMS): Essential for managing project documentation, drawings, and design workflows. Experience with specific EDMS platforms used in construction/engineering is highly desirable.

• Contract Management Systems: Familiarity with systems used to track contractual obligations, correspondence, and change orders.

📝 Enhancement Note: While the role is primarily managerial, a Design Manager must be conversant with the tools their teams use and the systems that underpin project delivery. EDMS and project scheduling/cost control software are particularly critical.

👥 Team Culture & Values

Operations Values:

• Safety First: A paramount commitment to health, safety, and environmental standards in all design and project activities.

• Integrity & Ethics: Upholding high ethical standards in all business dealings and project execution.

• Collaboration & Teamwork: Fostering a culture where diverse perspectives are valued, and collective effort drives success.

• Innovation & Continuous Improvement: Encouraging smart, leading-edge solutions and a proactive approach to improving processes and outcomes.

• Customer Focus: Dedication to meeting client needs and delivering value through integrated infrastructure solutions.

Collaboration Style:

• Integrated & Cross-Functional: Costain promotes a highly collaborative style, breaking down silos between design, construction, commercial, and client teams.

• Open Communication: Encourages transparent and proactive communication to address challenges and capitalize on opportunities.

• Knowledge Sharing: A culture that values sharing best practices and lessons learned across projects and teams to drive organizational learning and efficiency.

📝 Enhancement Note: Costain's emphasis on "smart infrastructure" and "integrated solutions" suggests a modern, collaborative, and forward-thinking culture that values innovation and teamwork across disciplines.

⚡ Challenges & Growth Opportunities

Challenges:

• Managing Design Complexity & Change: Balancing the need for detailed, compliant design with the dynamic nature of project requirements and managing a high volume of design changes efficiently.

• Stakeholder Alignment: Navigating diverse stakeholder interests (client, internal teams, regulators, supply chain) to achieve consensus and drive project objectives forward.

• Budgetary & Schedule Pressures: Consistently delivering high-quality designs within tight project budgets and demanding timelines, requiring proactive cost and schedule management.

• Ensuring Sustainability & Safety: Integrating increasingly stringent sustainability goals and safety regulations (like CDM) into practical, constructible designs.

• Digital Transformation: Adapting to and leveraging evolving digital tools and BIM technologies within the design process.

Learning & Development Opportunities:

• Advanced Design Management Techniques: Access to training on cutting-edge design management methodologies, risk assessment, and value engineering.

• Chartered Status Support: Mentorship and resources to achieve or maintain Chartered Engineer status.

• Project Management Skills: Opportunities to develop broader project management competencies, including commercial, contractual, and financial aspects.

• Industry Conferences & Networking: Participation in industry events to stay abreast of best practices, new technologies, and network with peers.

• Leadership Development: Structured pathways for developing leadership skills for senior roles within Costain.

📝 Enhancement Note: The challenges inherent in large-scale infrastructure projects are significant, demanding strong problem-solving and adaptability. Costain's commitment to growth suggests ample opportunities for professionals to expand their skill sets and career horizons.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you managed a complex design process for a major infrastructure project. What were the key challenges, how did you address them, and what was the outcome?" (Focus on process, problem-solving, and results).

• "How do you ensure technical compliance and quality control within a design team, especially when dealing with multiple disciplines and tight deadlines?" (Highlight your QA/QC processes and leadership approach).

• "Walk me through your approach to managing design budgets and controlling costs, particularly in relation to design changes." (Prepare specific examples of cost-saving measures and change control implementation).

• "How do you foster collaboration between design, construction, and client teams to ensure buildability and supply chain efficiency?" (Emphasize communication strategies and relationship-building).

• "Explain your understanding of CDM Regulations and how you ensure compliance from a design management perspective." (Be ready to discuss risk assessment, design coordination, and documentation requirements). Company & Culture Questions:

• "What interests you about Costain and our work in the water/wastewater sector?" (Research Costain's mission, values, and recent projects).

• "How do you align with our company values, particularly regarding safety, integrity, and collaboration?" (Prepare examples that demonstrate these values in your past roles).

• "Describe your ideal work environment and how you contribute to a positive team culture." (Reflect on your collaborative style and how you support team success). Portfolio Presentation Strategy:

• Storytelling: Frame your portfolio projects as compelling narratives, highlighting the problem, your solution (design management approach), and the positive impact.

• Visual Aids: Use diagrams, charts, or brief project summaries to illustrate key points and make your presentation engaging.

• Focus on Management & Strategy: While technical aspects are important, emphasize your strategic decision-making, team leadership, and process management capabilities.

• Quantify Impact: Be ready to discuss metrics related to budget, schedule, quality, safety, and efficiency.

• Be Prepared for Deep Dives: Anticipate detailed questions about your specific contributions and decision-making processes within your portfolio examples.

📝 Enhancement Note: Interview preparation should focus on demonstrating strategic thinking, strong leadership, a deep understanding of the design lifecycle, and a commitment to Costain's operational and cultural priorities, especially safety and collaboration.

📌 Application Steps

To apply for this Design Manager position:

• Submit your application through the Oracle Cloud portal via the provided link.

• Portfolio Customization: Tailor your CV and any supplementary materials to highlight your experience in engineering design management, particularly within water/wastewater or similar infrastructure projects. Emphasize your leadership, budget control, CDM compliance, and collaborative achievements.

• Resume Optimization: Ensure your resume clearly articulates your qualifications, including your engineering degree, any chartered status, and specific experience managing design teams and processes. Use keywords from the job description such as "Design Manager," "CDM Regulations," "optioneering," "value engineering," and "budget management."

• Company Research: Thoroughly research Costain Group's mission, values, recent projects, and their approach to smart infrastructure solutions. Understand their commitment to safety and sustainability. Familiarize yourself with Thames Water's operational context if possible.

• Interview Practice: Prepare to discuss your portfolio in detail, practice answering behavioral and situational questions, and formulate thoughtful questions to ask the interviewer about the role, team, and projects.

⚠️ 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.