**Senior Estimator** **\-** **LIM00K1****Company****:** Worley**Primary Location****:** PER\-LM\-Lima**Job****:** Project Cost Estimating**Schedule****:** Full\-time**Employment Type****:** Employee**Management Level****:** Individual Contributor**Job Posting****:** Oct 14, 2025**Unposting Date****:** Nov 13, 2025**Reporting Manager Title****:** Senior Manager, Project Controls : **Building on our past. Ready for the future** Worley is a global professional services firm composed of experts in energy, chemicals and resources. We partner with clients to deliver projects and create value across the lifecycle of their assets. We are bridging two worlds—advancing toward more sustainable energy sources while also helping provide the energy, chemicals and resources needed today. **Objective:** Develops, coordinates and/or executes most estimating activities for small, medium, and occasionally one or more large projects. This estimator level is based on extensive experience and exposure to various project types and clients. Must have a clear understanding and ability to work with engineering drawings and specifications. **Responsibilities:** CAPEX estimates for copper mining Preparation of direct and indirect costs Economic evaluation of projects Sensitivity and risk analysis Benchmarking and cost databases Coordination with engineering, procurement and construction Delivery of proposals, presentations and reports, as well as collaboration with stakeholders and management. **Requirements:****Specific Knowledge:** **Specific Experience:** Professional with over 10 years of experience preparing capital cost (CAPEX) estimates for mining projects, specializing in the copper sector. Knowledge across all stages of the project lifecycle—from conceptual studies through detailed engineering and execution—providing accurate and strategic analyses that support financial and technical decision-making. Possesses in-depth knowledge of estimation methodologies (AACE Class 5 to Class 1), cost breakdown structures (WBS), cost benchmarking, risk analysis, and software tools such as Aspen Capital Cost Estimator (ACCE), Cleopatra, and advanced Excel. Experience includes greenfield and brownfield projects in Latin America, with a focus on operational efficiency, regulatory compliance and sustainability. **Academic Qualifications, Certifications, Training:** Professional engineering degree with active registration at the Colegio de Ingenieros del Perú (\#CIP). **HSE Skills:** Actively promotes behaviors aligned with our LIFE values and applicable HSE policies for assigned projects. **IT Skills:** Advanced proficiency in Excel and intermediate skills in Microsoft environment (Project, Word, PowerPoint, Excel). Intermediate-level experience with document management software; familiarity with Cleopatra is desirable. **Personal Competencies:** Ability to work within multidisciplinary teams, lead estimation review processes, coordinate with engineering, procurement and construction, and present results to senior-level stakeholders. Focus is on accuracy, transparency and continuous improvement in cost control processes. **Other Skills:** * Analytical thinking: Ability to interpret complex data and translate it into actionable information for decision-making. * Effective communication: Clear presentation of estimates and analyses to technical and executive teams. * Teamwork: Collaboration with multidisciplinary teams in dynamic and multicultural environments. * Technical leadership: Leading cost review processes and mentoring junior professionals. * Adaptability: Flexibility to adjust to changes in scope, schedule or project conditions. * Results orientation: Focus on accuracy, efficiency and continuous improvement in estimation processes. **Work Location**: Hybrid mode at San Isidro Office If you require any **accessibility accommodation**, please do not hesitate to specify it in your application. **Moving Forward Together** We are committed to building a diverse, inclusive and respectful workplace where everyone feels they belong, can speak up and be heard. We provide equal employment opportunities to all qualified applicants and employees regardless of age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status, or any other basis protected by law. We want our people to be energized and empowered to drive sustainable impact. That’s why we focus on a values-driven culture that fosters brilliance through belonging, connection and innovation. We are building a diverse, inclusive and respectful workplace. Creating an environment where everyone feels they belong, can be themselves and be heard. And we’re not just talking about it; we’re doing it. We are reskilling our people, leveraging transferable skills and supporting workforce transition to become experts in today’s low-carbon energy infrastructure and technology. Whatever your ambition, there’s a path for you here. And there are no barriers to potential career success. Join us to expand your horizons, explore diverse opportunities and be part of achieving sustainable change.