Closing date: 17 Aug 2026 Org. Setting and Reporting UNRWA is a United Nations agency established by the General Assembly in 1949 and is mandated to provide assistance and protection to a population of some 5.8 million registered Palestine refugees. Its mission is to help Palestine refugees in Jordan, Lebanon, Syria, West Bank and the Gaza Strip to achieve their full potential in human development, pending a just solution to their plight. UNRWA's services encompass education, health care, relief and social services, camp infrastructure and improvement, microfinance, and emergency assistance. UNRWA is the largest UN operation in the Middle East with more than 30,000 staff. UNRWA is funded almost entirely by voluntary contributions. If you are looking for a rewarding opportunity to make a tangible difference for one of the most vulnerable communities in the world, UNRWA would like to hear from you. - Supervisor: The incumbent reports to the Electro-mechanical Design Lead Engineer. Responsibilities Carries out detailed mechanical design for building projects including schools, hospitals, clinics, shelters, warehouses and rehousing projects in accordance with Agency's needs, policies, design criteria, standards, local and international codes of practice; maintains and applies existing standard details of mechanical works utilizing relevant software and reviews drawings prepared by Technical Assistants/CAD. Contributes to the tender documents preparation related to mechanical works, including particular specifications to cover special design needs; identifies non-standard items, to improve the quality of implemented works, and writes relevant description to be included in the Bill of Quantities (BoQs). Searches for emerging models and exploring technologies to identify new materials and techniques to achieve better results and meet changing requirements; participates in studies and technical activities satisfying environmental aspects, including the incorporation of green elements in design, and safety needs and achieve the most cost effective, reliable, and technical solution. Provides technical advice and carries out special design for the alteration works of the Agency premises; writes technical reports, particularly on mechanical aspects and building system inspections, including remediation requirements. Liaises with Construction teams on mechanical design issues arising during implementation period; updates mechanical designs drawings to incorporate changes included in the as-built drawings as received from the Fields to reflect on ground conditions and evolvements; maintains these drawings based on the relevant Technical Instructions. Coordinates and liaises with other designers, to optimise designs in response to mechanical needs and maintaining soundness and integrity of the building at minimum cost; makes recommendation for improvement of standards and procedures. Assists in drafting terms of references for consultants related to mechanical