Senior Proposal Engineer

As a Senior Proposal Engineer, you will lead the end-to-end preparation of technical and commercial proposals for complex industrial EPC projects. You act as the central coordination point between Engineering, Procurement, Construction, Project Management and Business Development to build offers that are competitive, executable, and technically sound. Beyond cost estimation, you will contribute to execution strategy, risk and opportunity assessment, and continuous improvement of tendering practices.

Key Responsibilities
Lead the development of technical and commercial proposals for multidisciplinary industrial EPC/EPCM projects. Review and interpret tender documents: specifications, scope of work, contractual terms, and client requirements. Define execution strategies and construction methodologies in close collaboration with operational teams. Prepare and/or coordinate detailed cost estimates (labor, materials, piping, mechanical installations, subcontracting, equipment, logistics, indirect costs). Manage RFQs to suppliers and subcontractors, analyze their offers, and integrate them into the overall proposal. Coordinate inputs from Engineering, Procurement, Construction and Project Management to ensure a coherent and optimized offer. Identify technical, commercial and contractual risks; propose mitigation measures and value-adding alternatives. Ensure the quality, consistency, and timely submission of proposals in line with internal standards and client deadlines. Participate in clarification meetings, negotiations and technical/commercial discussions with clients when required. Contribute to the improvement of tendering tools, templates, databases and processes (cost libraries, lessons learned, benchmarks). Profile

Master’s degree in Mechanical Engineering, Electromechanical Engineering or equivalent. Minimum 8 years of experience in Proposal Engineering, Tendering, Estimation or Bid Management within an industrial EPC/EPCM environment (mandatory). Proven track record on large, multidisciplinary industrial projects (process, mechanical, piping, construction). Strong technical understanding of industrial EPC projects, including: Industrial piping and related standards Mechanical installations and equipment Industrial processes and plant construction Solid grasp of contractual and commercial aspects of tenders (terms & conditions, liabilities, payment terms, variations, claims). Demonstrated experience in cost estimation and coordination of cross-functional teams. Personal Skills

Leadership and ability to align and motivate transversal teams. Strong analytical mindset, problem-solving and solution-oriented approach. Excellent organizational skills and ability to manage multiple tenders in parallel. Clear and effective communication, both written and verbal. Strong sense of priorities, performance and deadlines. Results-driven, with attention to accuracy and reliability of data. Professional proficiency in French and English.

What we offer
An international community bringing together 110+ different nationalities An environment where trust has a central place: 70% of our key leaders started their careers at the first level of responsibilities A robust training system with our internal Academy and 250+ available modules A vibrant workplace that frequently gathers for internal events (afterworks, team buildings, etc.) At Mantu, sustainability is part of everything we do. You’ll have the opportunity to turn your ideas into action and make a tangible impact. Every day, our teams bring our ESG commitments to life, from reducing our footprint to driving positive change within our communities. Through our WeCare Together program, you’ll be empowered to design and lead projects that create real social or environmental impact, with the company’s full support. Amaris Consulting is proud to be an equal-opportunity workplace. We are committed to promoting diversity within the workforce and creating an inclusive working environment. For this purpose, we welcome applications from all qualified candidates regardless of gender, sexual orientation, race, ethnicity, beliefs, age, marital status, disability, or other characteristics. #LI-VG1 Who are we?

Job description

As a Senior Proposal Engineer, you will lead the end-to-end preparation of technical and commercial proposals for complex industrial EPC projects. You act as the central coordination point between Engineering, Procurement, Construction, Project Management and Business Development to build offers that are competitive, executable, and technically sound. Beyond cost estimation, you will contribute to execution strategy, risk and opportunity assessment, and continuous improvement of tendering practices.

Key Responsibilities

Lead the development of technical and commercial proposals for multidisciplinary industrial EPC/EPCM projects. Review and interpret tender documents: specifications, scope of work, contractual