Country:  Uganda Duty station: Home based   Description of the Assignment:  Professional Services - Engineers as and when required under a Long-Terms Agreement (LTA) as and when required for the following Professionals:-Lot 1- Architectural ExpertsLot 2- Civil Engineer - Infrastructure Engineer - Design EngineerLot 3- HydrologistLot 4- Irrigation- Agricultural EngineerLot 5- Land Survey and Geospatial ExpertLot 6- Quantity SurveyorLot 7- Water - Hydraulic EngineerLot 8 - ToR National IC on LTA - Environmentalist Period of assignment/services :12 months renewable yearly subject to satisfactory performance up to a maximum of 2 years (1 initial year & additional 2 years) Proposals should be submitted directly in the portal no later than indicated deadline.Any request for clarification must be sent in writing via messaging functionality in the portal. UNDP will respond in writing including an explanation of the query without identifying the source of inquiry. Please indicate whether you intend to submit a bid by creating a draft response without submitting directly in the system. This will enable the system to send notifications in case of amendments of the tender requirements. Should you require further clarifications, kindly communicate using the messaging functionality in the system. Offers must be submitted directly in the system following this link: http://supplier.quantum.partneragencies.org  using the profile you may have in the portal. In case you have never registered before, you can register a profile using the registration link shared via the procurement notice and following the instructions in guides available in UNDP website: https://www.undp.org/procurement/business/resources-for-bidders.  Do not create a new profile if you already have one. Use the forgotten password feature in case you do not remember the password or the username from previous registration.