Job Description:

• Purchase products and tools to assist with cleaning and landscaping operations
• Ensure products are of competitive pricing with the best quality
• Assist with purchasing budget to ensure sufficient supplies are always available
• Review existing suppliers, source for new suppliers and negotiate contracts while building good working relationships with suppliers
• Analyse current budget and expenses to ascertain where improvements can be made
• Maintain all documentation of purchases and prepare reports as requested by management, ensure all information is filed properly and made available when needed
• Highlight any significant differences in pricing
• Facilitate with procurement to ensure timely delivery of products

Job Requirements:

• 1 - 2 years of experience as a purchasing officer / executive
• Some experience sourcing for suppliers and negotiating pricing
• Has some experience using purchasing software
• Ability to develop and maintain good working relationships with internal and external stakeholders
• Strong verbal and written communication skills
• Highly organised and meticulous

Company Overview

Listed as one of NParks Registered Landscape Companies, we handle both residential and commercial corporate properties. Besides regular landscaping and garden maintenance, consult us for customised solutions on your properties.

We know what it takes to provide a thorough and efficient cleaning job. Supported with a huge cleaning fleet and equipment and well-trained staff, we pride ourselves on quality, offering a range of different services that are sure to meet your expectations.

Disposing of waste in an environmentally-friendly manner is essential to your business. We can help. Our experts will assess your waste streams and develop the right recycling and disposal solution for you.

• Request quotation and price negotiation with suppliers.
• Prepare purchase order, ensure timely delivery and follow through the complete procurement cycle.
• Responsible for construction material / machinery purchase and to maintain with proper record for receipts and issuance.
• Matching of supplier’s invoices with supporting documents such as PO & DO.
• Generate monthly purchasing report for management.
• Liaise with local and overseas suppliers.
• Administrative tasks on and ad-hoc basis.
• Take sufficient steps to minimize project risks.
• Handle the planning and preparation of company contracts.
• Liaise with and support the Project Manager to ensure the project is executed safely and properly.
• Ensure compliance with the company’s work health and safety policies, standards and procedures.
• Prepare monthly project reports and make presentations at meetings.
• Support negotiations of claims, manage contractual changes and resolve disputes or conflict resolution with Contractors.
• Assess and prepare claims from suppliers.
• Ensure project members use the contract correctly.
• English speaking, writing, and reading required.
• Candidate must possess at least Secondary School/O Level, Higher Secondary/Pre-U/'A' Level, Diploma, Advanced/Higher/Graduate Diploma Understanding of procurement process, Good Communication Skills

Roles & Responsibilities

Our Inventory & Logistic Coordinator is responsible for handling end-to-end Inventory Management process. Job scope involves managing Incoming and Outgoing shipments, Managing Material Receipts & Issuance and ensuring Inventory accuracy in system at all times.

RESPONSIBILITIES & DUTIES

· Handle Incoming and Outgoing shipments.

· Handle Material Receipts & Issuance in accordance to Company Procedure.

· Prepare and complete orders for delivery or pickup according to schedule (load, pack, wrap, label, ship)

· Receive and process warehouse stock products (pick, unload, label, store)

· Reconciles discrepancies in inventories and notifies supervisor of irregularities and when stock reaches designated reorder point.

· Ensure inventory accuracy through conducting all inventory transactions related to shipping, receiving, work orders and sales orders accurately and in a timely manner.

· Conduct all transactions related to parent/child asset relationships accurately and in a timely manner.

· Run and initiate cycle count reports on a daily basis.

· Provide variance explanation, if needed.

· Know and understand Company Quality Policy and comply with all requirements of the Quality Systems Manual, Operating and Technical Procedures and Workplace Instructions.

· Must understand and comply with all safety rules and company policies of the Company.

· Work assignments carried out to the highest quality level.

· Perform various other duties and activities as assigned by supervisor within the physical constraints of the job.

Requirements:

· Minimum of 2-3 years General Inventory Experience

· Ability to multi-task

· Excellent organizational skills

· Strong oral and written communication skills

· Basic Forklift skills

· Proficient in basic computer skills

· Ability to work closely and collaboratively with fellow employees

· Secondary School Diploma or equivalent

· Forklift license is a plus

**If you are interested in this position, please email your resume and CV to Ms Shanti ([email protected]) and Ms Celine ([email protected])

We are seeking an experienced purchasing manager to handle our company's procurement activities. The purchasing manager's responsibilities include developing purchasing strategies, maintaining positive relationships with suppliers, coordinating with internal teams regarding their supply needs, and overseeing the purchasing team in their daily activities.

To be successful as a purchasing manager you should be able to manage and optimize purchasing activities and processes. An outstanding purchasing manager should have excellent leadership abilities and be able to negotiate the best possible deals with suppliers.

Purchasing Manager Job Responsibilities:

• Developing and implementing purchasing strategies.
• Managing daily purchasing activities, supervising staff, and allocating tasks.
• Managing supplier relations and negotiating contracts, prices, timelines, etc.
• Maintaining the supplier database, purchase records, and related documentation.
• Coordinating with inventory control to determine and manage inventory needs.
• Managing the maintenance of office/manufacturing equipment and machinery.
• Ensuring that all procured items meet the required quality standards and specifications.
• Preparing cost estimates and managing budgets.
• Working to improve purchasing systems and processes.
• Training new employees in the purchasing process and how to use the purchasing system.

Purchasing Manager Requirements:

• Degree in business administration or a related field.
• Experience as a purchasing manager or in a similar position.
• Deep knowledge of inventory and supply chain management.
• Supervisory and management experience.
• Proficiency in Microsoft Office and purchasing software.
• Excellent communication skills, both written and verbal.
• Strong critical thinking and negotiation skills.
• Strong planning and organizational skills.
• Ability to work independently.

Summary:

This position is responsible for facilitating the end-end sourcing process which includes reviewing the sourcing specifications, doing the preparatory groundwork for purchase or rental from external services / facilities providers and raise the Purchase Order (PO) and overseeing a team of Procurement Executives.

Essential Duties/ Responsibilities:

• Lead the procurement process by reviewing sourcing specifications, sourcing suppliers, comparison of quotes, conducting background reference checks, and propose the best procurement option for the company.
• Prepare and ensure Purchase Order is raised accurately and in a timely manner.
• Work closely with budget owners, upload documents in the system.
• Source for equipment and repair services, negotiate for favorable terms and the most competitive pricing and obtain tax invoice before payment is processed.
• Ensure deliverables are in line with the contract terms and provide weekly status updates.
• Updating and maintaining records of all orders, payments and received stock.
• Provide Management with data and reports related to purchasing activities.
• Summarize data and prepare various reports on purchasing activities as well as cost analysis on different categories.
• Work closely with Finance to make payments to suppliers in accordance with agreed terms.
• Ensure compliance of procurement policy and seek approval as per Delegation of Authority Manual.
• Establish sound relationships with suppliers, ensure lead times are met and expedite outstanding orders.
• Assist the Director of Operations in overseeing procurement activities, tracking team performance, and ensuring adherence to company policies.
• Lead and manage a team of procurement executives, efficiently delegating day to day tasks.
• Train and guide team members on procurement best practices.
• Provide timely reports to the Director of Operations on a weekly basis.
• Support strategic planning by preparing comprehensive analyses of purchasing data to identify cost-saving opportunities.
• Maintain a high level of communication with internal and external stakeholders to ensure alignment on procurement priorities.

Position Requirements:

1. Bachelor’s degree in Supply Chain Management, Business Administration, or a related field.
2. Minimum 5 years’ work experience in the field of Procurement Management, preferably with 3 years in a managerial or supervisory capacity.
3. Strong negotiation, analytical, and problem-solving skills.
4. Strong stakeholder management to meet tight timelines.
5. Proficiency in procurement software and Microsoft Office Suite (Excel, Word, PowerPoint).
6. Excellent interpersonal and communication skills.
7. Ability to work independently, exceptional time-management and manage multiple tasks effectively.
8. Ability to work under pressure and meet deadlines.

Note:

The job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements are subject to possible modification to reasonably accommodate individual with disabilities. To perform this job successfully, the incumbents shall possess the knowledge, skills and abilities to perform each duty proficiently. Employment in this role is subject to clearing the necessary requirement as per the laws of Government of Singapore.

LEADING THE MARKET SINCE 1969

Founded in 1969, our company is a leading self-adhesive tape manufacturer, distributor, importer & exporter for a broad spectrum of quality self-adhesive tapes and packaging products / materials.

Our rich history and active presence in the industry has brought about high brands and product recognition by industry leaders. Our excellent track record for efficient and reliable sevices backed by high manufacturing standards have enabled us to be the leading choice for packaging solutions.

We are currently hiring and looking for a resourceful and highly motivated individual to join our expanding Marketing teams as:

Purchasing Assistant

• "O" Level with at least 2 years of working experience
• Competent in Microsoft Excel and Words
• Able to communicate in English and Mandarin to liaise with English / Chinese speaking associates
• Prefer staff who stay in Ang Mo Kio or East area
• Navision knowledge will be an added advantage
• Any other work assigned by supervisor

Job Scope:

• Procurement related admin work, vendor creation, stationery store management, liaise with users and vendors for stock in and stock out.
• Manage the Procurement of common items used by the organisation , from sourcing till goods receiving.
• Assisting or guiding users on simple enquiries, monthly report generation.

Requirements:

• A Level or Diploma in Procurement & Supply, Business Administration or equivalent.
• At least 1 year of working experience in data entry and administration.
• Experience in supply chain or procurement related work is added advantage.
• Knowledge of any procurement system would be preferred.

Skills:

• Proficient in Microsoft Office.
• Problem-solving skills.

Personal Attributes:

• Responsible and independent.
• Good interpersonal and communication skills.
• A Good team player, courteous towards customers, diligent at work, has a pleasant disposition and always willing to learn and pick up new skills.
• Resourceful, analytical & meticulous.
• A result committed and customer orientated person.

We regret that only shortlisted candidates will be notified.

• In charge of the operational procurement process for ship’s requirements.
• Negotiate / communicate with suppliers specifying quality, quantity, and delivery schedules
• Schedule, arrange, and follow-up on logistics to ensure cost effective and timely delivery of
• items on board
• Monitor schedules of the assigned group of vessels to optimize deliveries on board
• Proactively participate in department meetings and other activities.

• Request quotation and price negotiation with suppliers.
• Prepare purchase order, ensure timely delivery and follow through the complete procurement cycle.
• Responsible for construction material / machinery purchase and to maintain with proper record for receipts and issuance.
• Matching of supplier’s invoices with supporting documents such as PO & DO.
• Generate monthly purchasing report for management.
• Liaise with local and overseas suppliers.
• Administrative tasks on and ad-hoc basis.
• Take sufficient steps to minimize project risks.
• Handle the planning and preparation of company contracts.
• Liaise with and support the Project Manager to ensure the project is executed safely and properly.
• Ensure compliance with the company’s work health and safety policies, standards and procedures.
• Prepare monthly project reports and make presentations at meetings.
• Support negotiations of claims, manage contractual changes and resolve disputes or conflict resolution with Contractors.
• Assess and prepare claims from suppliers.
• Ensure project members use the contract correctly.
• English speaking, writing, and reading required.
• Candidate must possess at least Secondary School/O Level, Higher Secondary/Pre-U/'A' Level, Diploma, Advanced/Higher/Graduate Diploma Understanding of procurement process, Good Communication Skills

Job Description:

• To manage and negotiate pricing, commercial terms with local and overseas suppliers and recommend the most competitive suppliers and subcon.
• With experience in Import-export related transactions affairs.
• Ensure continuous supply of required goods and materials and communicate any supply problems which may pose a risk or impact on business operations.
• Negotiate contracts, improved prices and terms of business with suppliers and review opportunities to make business savings utilising negotiation and procurement best practice tools and methods.
• Facilitate effective communication between procurement team, internal stakeholders and vendors, to ensure smooth procurement operations.
• Perform other duties as assigned.

Job Requirements

• Degree in Supply Chain Management, Procurement, Quantity Surveying, Business, Engineering, or a related field.
• A minimum of 10 years of relevant experience, preferably in a Procurement Department within the Construction industry.
• Able to work 6 working days on Site.

LEADING THE MARKET SINCE 1969

Founded in 1969, our company is a leading self-adhesive tape manufacturer, distributor, importer & exporter for a broad spectrum of quality self-adhesive tapes and packaging products / materials.

Our rich history and active presence in the industry has brought about high brands and product recognition by industry leaders. Our excellent track record for efficient and reliable sevices backed by high manufacturing standards have enabled us to be the leading choice for packaging solutions.

We are currently hiring and looking for a resourceful and highly motivated individual to join our expanding Marketing teams as:

Purchasing Assistant

• "O" Level with at least 2 years of working experience
• Competent in Microsoft Excel and Words
• Able to communicate in English and Mandarin to liaise with English / Chinese speaking associates
• Prefer staff who stay in Ang Mo Kio or East area
• Navision knowledge will be an added advantage
• Any other work assigned by supervisor

Job Description:

• Handle the entire procurement processes and support workflows, according to the sourcing strategies set.
• Manage the full procurement process, including supplier tendering, selection, contract negotiation, and ensuring timely ordering, delivery, and payment to meet operational needs.
• Build and maintain strong relationships with suppliers and internal stakeholders, promptly addressing any issues related to orders, deliveries, or quality.
• Ensure all procurement activities comply with policies, standards, and regulations while keeping accurate, up-to-date records of contracts, purchase orders, and supplier performance.
• Excellent negotiation skills with the ability to build strong relationships with vendors and manage contract agreements effectively.
• Perform other duties as assigned.

Job Requirement:

• Candidate must possess Diploma or above in relevant discipline.
• Minimum 3 years of experience in procurement preferably in construction/ civil engineering industry.
• Experienced with sourcing and material understanding.
• Have experiences in working in large scale projects.
• Bilingualism will be an advantage as we need to oftenly and effectively communicate with overseas stakeholders.
• Able work at container site office.
• 5.5 day work

Job Description:

• Handle the entire procurement processes and support workflows, according to the sourcing strategies set.
• Manage the full procurement process, including supplier tendering, selection, contract negotiation, and ensuring timely ordering, delivery, and payment to meet operational needs.
• Build and maintain strong relationships with suppliers and internal stakeholders, promptly addressing any issues related to orders, deliveries, or quality.
• Ensure all procurement activities comply with policies, standards, and regulations while keeping accurate, up-to-date records of contracts, purchase orders, and supplier performance.
• Excellent negotiation skills with the ability to build strong relationships with vendors and manage contract agreements effectively.
• Perform other duties as assigned.

Job Requirement:

• Candidate must possess Diploma or above in relevant discipline.
• Minimum 3 years of experience in procurement preferably in construction/ civil engineering industry.
• Experienced with sourcing and material understanding.
• Have experiences in working in large scale projects.
• Bilingualism will be an advantage as we need to oftenly and effectively communicate with overseas stakeholders.
• 5.5 day work

Job Description:

• Handle the entire procurement processes and support workflows, according to the sourcing strategies set.
• Manage the full procurement process, including supplier tendering, selection, contract negotiation, and ensuring timely ordering, delivery, and payment to meet operational needs.
• Build and maintain strong relationships with suppliers and internal stakeholders, promptly addressing any issues related to orders, deliveries, or quality.
• Ensure all procurement activities comply with policies, standards, and regulations while keeping accurate, up-to-date records of contracts, purchase orders, and supplier performance.
• Excellent negotiation skills with the ability to build strong relationships with vendors and manage contract agreements effectively.
• Perform other duties as assigned.

Job Requirement:

• Candidate must possess Diploma or above in relevant discipline.
• Minimum 3 years of experience in procurement preferably in construction/ civil engineering industry.
• Experienced with sourcing and material understanding.
• Have experiences in working in large scale projects.
• Bilingualism will be an advantage as we need to oftenly and effectively communicate with overseas stakeholders.
• 5.5 day work

Job Description:

• Handle the entire procurement processes and support workflows, according to the sourcing strategies set.
• Manage the full procurement process, including supplier tendering, selection, contract negotiation, and ensuring timely ordering, delivery, and payment to meet operational needs.
• Build and maintain strong relationships with suppliers and internal stakeholders, promptly addressing any issues related to orders, deliveries, or quality.
• Ensure all procurement activities comply with policies, standards, and regulations while keeping accurate, up-to-date records of contracts, purchase orders, and supplier performance.
• Excellent negotiation skills with the ability to build strong relationships with vendors and manage contract agreements effectively.
• Perform other duties as assigned.

Job Requirement:

• Candidate must possess Diploma or above in relevant discipline.
• Minimum 3 years of experience in procurement preferably in construction/ civil engineering industry.
• Experienced with sourcing and material understanding.
• Have experiences in working in large scale projects.
• Bilingualism will be an advantage as we need to oftenly and effectively communicate with overseas stakeholders.
• 5.5 day work

Job Description:

• Handle the entire procurement processes and support workflows, according to the sourcing strategies set.
• Manage the full procurement process, including supplier tendering, selection, contract negotiation, and ensuring timely ordering, delivery, and payment to meet operational needs.
• Build and maintain strong relationships with suppliers and internal stakeholders, promptly addressing any issues related to orders, deliveries, or quality.
• Ensure all procurement activities comply with policies, standards, and regulations while keeping accurate, up-to-date records of contracts, purchase orders, and supplier performance.
• Excellent negotiation skills with the ability to build strong relationships with vendors and manage contract agreements effectively.
• Perform other duties as assigned.

Job Requirement:

• Candidate must possess Diploma or above in relevant discipline.
• Minimum 3 years of experience in procurement preferably in construction/ civil engineering industry.
• Experienced with sourcing and material understanding.
• Have experiences in working in large scale projects.
• Bilingualism will be an advantage as we need to oftenly and effectively communicate with overseas stakeholders.
• 5.5 day work

Job Description:

• To manage and negotiate pricing, commercial terms with local and overseas suppliers and recommend the most competitive suppliers and subcon.
• With experience in Import-export related transactions affairs.
• Ensure continuous supply of required goods and materials and communicate any supply problems which may pose a risk or impact on business operations.
• Negotiate contracts, improved prices and terms of business with suppliers and review opportunities to make business savings utilising negotiation and procurement best practice tools and methods.
• Review specifications and ensure materials ordered meet proper quality standard and comply to contract specifications.
• Maintain and update list of approved suppliers and their qualifications, delivery times, and potential future development.
• Lead and oversees the procurement team to achieve departmental objectives and professional and career growth of staff.
• Facilitate effective communication between procurement team, internal stakeholders and vendors, to ensure smooth procurement operations.
• Perform other duties as assigned.

Role & Responsibilities

- Preparation of Purchase Orders to Vendors

- Creation of Item Codes in ERP

- Daily updates in Enterprise Work Management Platform (Asana)

- Daily checking of stock request

- Preparation of weekly reports for operation

- Receiving of goods from vendors and checking on quality issues

- Housekeeping of the nursery and office

- Participate in pre-sales activities to wholesale customers via communication platforms such as WhatsApp and Instagram

- Provide after-sales services to wholesale customers such as preparation for delivery, self-collection and payment receipts from wholesale customers

Qualification and criteria

- Able to speak read and write in English

- Good Attendance Record

- Team Player

- Physically Fit

- Attention to details

- Carrying of small and medium sized plants required

- No plant experience is required

- Proficient in Microsoft Office

• In charge of the operational procurement process for ship’s requirements.
• Negotiate / communicate with suppliers specifying quality, quantity, and delivery schedules
• Schedule, arrange, and follow-up on logistics to ensure cost effective and timely delivery of
• items on board
• Monitor schedules of the assigned group of vessels to optimize deliveries on board
• Proactively participate in department meetings and other activities.

Job Description:

• To manage and negotiate pricing, commercial terms with local and overseas suppliers and recommend the most competitive suppliers and subcon.
• With experience in Import-export related transactions affairs.
• Ensure continuous supply of required goods and materials and communicate any supply problems which may pose a risk or impact on business operations.
• Negotiate contracts, improved prices and terms of business with suppliers and review opportunities to make business savings utilising negotiation and procurement best practice tools and methods.
• Review specifications and ensure materials ordered meet proper quality standard and comply to contract specifications.
• Maintain and update list of approved suppliers and their qualifications, delivery times, and potential future development.
• Lead and oversees the procurement team to achieve departmental objectives and professional and career growth of staff.
• Facilitate effective communication between procurement team, internal stakeholders and vendors, to ensure smooth procurement operations.
• Perform other duties as assigned.

Job Requirements

• Degree in Supply Chain Management, Procurement, Quantity Surveying, Business, Engineering, or a related field.
• A minimum of 7 years of relevant experience, preferably in a Procurement Department within the Construction industry.
• Required language(s): English & Mandarin (to handle queries and feedbacks from English & Mandarin speaking associates, clients and customers).
• Capable of working independently with strong negotiation skills.
• Detail-oriented, analytical, and possesses excellent problem-solving abilities. Excellent team member, proactive in managing issues and possess sense of responsibility and ownership in his/her work and results.
• Able to work 6 working days on Site.

Job Scope:

• Procurement related admin work, vendor creation, stationery store management, liaise with users and vendors for stock in and stock out.
• Manage the Procurement of common items used by the organisation , from sourcing till goods receiving.
• Assisting or guiding users on simple enquiries, monthly report generation.

Requirements:

• A Level or Diploma in Procurement & Supply, Business Administration or equivalent.
• At least 1 year of working experience in data entry and administration.
• Experience in supply chain or procurement related work is added advantage.
• Knowledge of any procurement system would be preferred.

Skills:

• Proficient in Microsoft Office.
• Problem-solving skills.

Personal Attributes:

• Responsible and independent.
• Good interpersonal and communication skills.
• A Good team player, courteous towards customers, diligent at work, has a pleasant disposition and always willing to learn and pick up new skills.
• Resourceful, analytical & meticulous.
• A result committed and customer orientated person.

We regret that only shortlisted candidates will be notified.

- Negotiates and coordinates with suppliers. Responsible for purchase administration, order processing and delivery follow up.

- Sourcing of hardware, accessories or any other products and ensure compliance to the specifications as required, competitive price, quality products and timely delivery

- Ensure on time delivery of goods from vendor and to coordinate with production for any possible extrusion, hardware shortage for coming production.

- Work closely with internal departments, including overseas vendors. Shipment arrangement and liaise with forwarders.

- Resolve suppliers’ invoices issues and follow up on credit notes.

- Perform general record keeping and office duties

Job Description:

• To manage and negotiate pricing, commercial terms with local and overseas suppliers and recommend the most competitive suppliers and subcon.
• Negotiate contracts, improved prices and terms of business with suppliers and review opportunities to make business savings utilising negotiation and procurement best practice tools and methods.
• Review specifications and ensure materials ordered meet proper quality standard and comply to contract specifications.
• Manage and track Purchase Requisition/Purchase Order on the internal system to make sure the procurement projects are delivered on time.
• Participates in project budget reviews and provide advice when required.
• Maintain and update list of approved suppliers and their qualifications, delivery times, and potential future development
• Keep relevant stakeholders informed on the latest progress/status of delivery within expected timelines.
• Perform any other duties as assigned.

Job Responsibilities

· Perform administrative support for the Department

· Accurate and prompt execution of PO processes and invoice submittals

· Ensure on-time delivery for all order shipments to designated locations

· Handling of procurement related enquiries and feedback from regional offices

· Assist with claims on short-shipped, wrong or defective orders

· Liaise with suppliers and vendors as required

· Track and ensure best rates are applied on all shipments

· Assist the HOD and Manager in any assigned ad-hoc project or work as required

Requirements

• Diploma in Supply Chain Management, Logistics or Business Administration
• At least 1-2 years of relevant working experience in fulfilment and logistics role
• Proficient in Microsoft Office applications and AX system
• Meticulous, analytical with strong organizational skills
• Proactive with excellent communication skills
• Ability to work in a fast-paced environment, prioritize tasks and meet deadlines

LEADING THE MARKET SINCE 1969

Founded in 1969, our company is a leading self-adhesive tape manufacturer, distributor, importer & exporter for a broad spectrum of quality self-adhesive tapes and packaging products / materials.

Our rich history and active presence in the industry has brought about high brands and product recognition by industry leaders. Our excellent track record for efficient and reliable sevices backed by high manufacturing standards have enabled us to be the leading choice for packaging solutions.

We are currently hiring and looking for a resourceful and highly motivated individual to join our expanding Marketing teams as:

Purchasing Assistant

• "O" Level with at least 2 years of working experience
• Competent in Microsoft Excel and Words
• Able to communicate in English and Mandarin to liaise with English / Chinese speaking associates
• Prefer staff who stay in Ang Mo Kio or East area
• Navision knowledge will be an added advantage
• Any other work assigned by supervisor