Total 73,037 Human Resources job vacancies in Singapore

Responsibilities

• Efficiently handle documentation and filing tasks.
• Regularly check and replenish office supplies such as stationery and pantry items.
• Assist in the completion of daily administrative tasks.
• Manage incoming phone calls and greet visitors professionally.
• Support other tasks as assigned by the superior or Director.
• Handle HR works on payroll, leaves management, staff permits application, manage and handle staff training and implementation of HR policies

Requirements

• Minimum Diploma in the related field.
• Proficient in speaking and writing in English.
• Demonstrated ability to meet deadlines and deal with competing priorities.
• Excellent attention to detail, including proofreading and editing skills.
• Ability to independently resolve routine problems and issues.
• Excellent communication skills
• Knowledge of local legislation on HR

Responsibilities

• Support recruitment process, including but not limited to posting job advertisement, conducting candidate resume screening, arranging interviews, etc.
• Coordinate background checks and reference checks.
• Track candidate pipeline activity in a timely manner and report back to necessary internal stakeholders.
• Analyse key recruiting metrics to identify gaps and improvement areas, create reports when needed.

Requirements:

• Bachelor’s Degree in Human Resource Management or similar discipline.
• At least 2 years of experience in participating in recruitment coordination/operations.
• Attention to details.
• Demonstrate excellent communication and organizational skills.

HVAC Technician |5 Days | Air-Condition | Class 3 License | Tuas

• Location: Tuas
• Working hour: Mon – Fri 8:30 am–5:30 pm
• Salary range: $2300 - $3800. With variable bonus

Requirements:

• Minimum NITEC or Diploma
• Minimum 1year experience as a HVAC Technician
• Valid driver’s license
• Understanding of advanced principles of air conditioning, refrigeration and heating
• Working knowledge of boiler systems
• Proficient in balancing air and water treatment systems in line with HVAC protocols
• Ability to work after office hours, weekends and on public holidays on short or no notice

Roles & Responsibilities:

• Installing, maintaining and repairing ventilation and air conditioning systems and equipment
• Identifying maintenance risks on equipment
• Diagnosing electrical and mechanical faults for HVAC systems
• Cleaning, adjusting and repairing systems, and performing warranty services
• Performing emergency repairs promptly and efficiently
• Providing technical direction and on-the-job training
• Keeping daily logs and records of all maintenance functions
• Ensuring compliance with appliance standards and with Occupational Health and Safety Act
• Complying with service standards, work instructions and customers’ requirements
• Assisting with customers’ queries

The Supreme HR Advisory Pte Ltd | 14C7279

Ong Boon Kiet (Travys) | R22104769

Senior Recruitment Consultant

Job Description:

• Achieve agreed targets and standards for performance, quality, culture and legislative compliance.
• Lead and manage the end-to-end 360 recruitment cycle to build out the desk and manage their own part of the business whilst ensuring the overall recruitment strategy is being followed.
• Provide innovative and unique solutions to recruiting in a highly competitive recruitment industry.
• Deliver a range of contract recruitment offerings and tailored solutions to Airswift’s key global, regional and new business clients.
• To lead by example displaying a hard work ethic and understanding of many aspects of the business.
• Recruitment activities including working on active requirements involving search and selection of suitable candidates, liaison with clients and negotiation of rates and salaries.
• Ensure system is up to date for all recruitment team including statistics & figures.

Job Requirements:

• Minimum 3 years recruitment experience.
• A strong team player and the ability to work harmoniously with a diverse workforce
• A great work ethic with desire to get the job at hand done.
• Ability to work under pressure.
• Good understanding of Airswift’s global and regional accounts.
• Can demonstrate Airswift’s full suite of services both internally and in a client facing environment.
• Can identify and secure sales opportunities across all the suite of services.
• Have a full understanding and work across all business units of the group.
• An outstanding communicator who does not compromise on standards with a strong desire to be the best, you will be able to display an excellent track record of exceeding individual targets as well the ability to energize and mentor a cooperative team environment.
• Extremely knowledgeable of your market, you must be able to give evidence of excellent problem solving and negotiation skills to achieve the best outcome for the customer(s) and the business.

Location: Tuas Bay [Transportation to & fro at Boon Lay station provided]

Timing: 8:30AM – 6PM

Work days: Weekdays, Mondays to Fridays except PH

Salary Range: $2,700 - $3,800

Benefits:

• Transportation to & fro at Boon Lay station provided
• Lunch and company phone provided.

Responsibilities

• Perform daily Marketing Activities
• Handle Marketing enquiries and liaising with clients/suppliers
• Responsible for prospecting and making outbound sales calls to targeted clients
• Explore and open new account in assigned territories
• To ensure client deadlines are met and requirements are fulfilled
• To build and strengthen relationship with existing clients and partners
• To promote market solution services to potential clients
• Establishing new clients base both local and global market

Requirements:

• Minimum Diploma or equivalent with 3 years of working experience in Manufacturing industry / E-waste Recycling or Electronics Sectors preferred.
• Some experience with Autocount system

Whatsapp: +65 80135651(Alvin)

Alvin Chua Ming Jing:R23116192

The Supreme HR Advisory Pte Ltd: 14C7279

Account Cum Admin | Accounts Receivable (AR) | 5 Days | Up to $2.5k | Tuas

Working hour : 5 days (8.00AM- 5.30pm)

Location : Tuas

Salary : $2300-$2500

Job Responsibilities:

• Process and perform system entries for Accounts Receivable (AR)
• Follow up with internal sales team & customers for missing documents & outstanding sales invoices
• Generate monthly customers' statement of accounts and prepare bank reconciliations
• Support annual audit work and assist in preparing reports/schedules required
• Handle customers' enquiries regarding billings and disputes handling
• Ensure proper and systematic filling is done in a timely and accurate manner
• Assist in daily operational purchasing activities which includes planning, processing and following up on purchase orders with the suppliers Assist in HR-related events or activities
• Perform administrative and other ad-hoc duties as assigned

The Supreme HR Advisory Pte Ltd | 14C7279

Ong Boon Kiet (Travys) | R22104769

Senior Recruitment Consultant

Working Days: 5 days (Mon to Fri)

Working Timing: 9am - 6pm

Working address: (City Hall)
Salary: Up to $3500

Job Responsible:

• The Accounts/Tax Executive shall be responsible for the accounting and tax requirements of the clients which have outsourced their accounting and tax functions to the Company.
• Able to complete full set of accounts.
• Knowledge of GST.
• Knowledge of tax regulations.

Requirement:

• Degree in Accountancy / ACCA / Diploma in accounting.
• 3 to 5 years of relevant experiences.

Whatsapp: +65 80135651(Alvin)

Alvin Chua Ming Jing:R23116192

The Supreme HR Advisory Pte Ltd: 14C7279

Service crew

Working day: Mon to Sun, 5 day work week
Working location: Somerset / Tanjong Pagar / Orchard / City Hall
Working hours: 44h/week

Job Responsibilities:

• Attending to customers' enquiries
• Explaining the concept to guests, and educating / having conversations with them on the menu and related topics
• Preparation and serving of food and drinks
• Setting up and clearing down of operations
• Receiving and checking of inventory and perishables
• Reporting to outlet manager

Requirement:

• 1-2 years’ experience and interest in F&B
• Able to work weekends & public holidays

Interested applicants may choose to apply / Contact me your updated resume for our consultant to find you a suitable oppurtunities

Contact Number : +65 90839650

LIM JUN SHENG Reg No: R22104301

The Supreme HR Advisory Pte Ltd EA No: 14c7279

Location: Novena / Orchard
Salary: SGD 3,500 - SGD 5,000
Working Hours: 5.5 Days (Mon- Fri 830am-530pm; Sat 830am-1pm)

Job Responsibilities:

Out-patient:

• Assist out-patient clinic
• Provide patient education & counselling
• Maintain consumables & medication stocks
• Assist the Medical Director in the consultation room and procedures both in & outside the Centre

Surgery:

• Maintain stocks & inventory of surgical consumables
• Assist in laser refractive procedures (e.g. LASIK) & other minor procedures
• Upkeep of operating theatre and instrument sterility

Administrative Duties:

• Coordinate with external parties (ie. labs, hospitals, clinics & operation theatre, etc) in the management of patients.
• Coordinate with external vendors for purchasing & maintenance of equipment and services.
• Organise the surgical listing of patients.
• Assist the medical director on all administrative duties relating to the smooth running of the centre.

Job Requirements

• Fully registered with Singapore Nursing Board
• Experience in ophthalmic or surgical nursing will be advantageous.

Whatsapp: +65 80135651(Alvin)

Alvin Chua Ming Jing:R23116192

The Supreme HR Advisory Pte Ltd: 14C7279

Location: Novena / Orchard
Salary: $2800 - $3500 (depend on exp)
Working Hours: 5.5 Days (Mon- Fri 830am-530pm; Sat 830am-1pm)

Job Descriptions

• Attend to public enquiries of services available
• Liaise with relevant departments to address patients’ feedback and concerns
• Evaluate feedback forms and work with various stakeholders to identify potential service gaps and feedback that require intervention
• Ensure Feedback forms’ data are entered promptly and accurately into the database, and coordinate family conference where necessary
• Provide administrative support to the department, including minutes writing, preparing presentation materials, and collating and analysing of data

Job Requirements

• With 2 to 3 years of relevant experience
• Experience in insurance claims is a plus.

Whatsapp: +65 80135651(Alvin)

Alvin Chua Ming Jing:R23116192

The Supreme HR Advisory Pte Ltd: 14C7279

Prime Mover Driver | Class 5 | Up to $3.6k | Pioneer

5.5 days, 8.30am- 5.30pm/ 8.30am-12.30pm

Salary: Basic $3200 - $3600, no trip incentives

Address: Pioneer Sector Walk

Job scope:

• Ensure cargoes are properly packed, loaded, balanced, stowed and lashed on vehicle
• Visual inspection of goods loaded to ensure it is good condition
• Ensure item and quantities loaded are according to delivery instructions
• Ensure safe, timely and accurate delivery of goods according to delivery instructions
• Ensure proper acknowledgement of goods receipt on delivery documents
• Ensure compliance with road safety at all times
• Check that vehicle is suitable for operations before driving and that vehicle maintenance is up-to-date

Requirements:

• With valid Class 5 license and prime mover experience

The Supreme HR Advisory Pte Ltd | 14C7279

Ong Boon Kiet (Travys) | R22104769

Senior Recruitment Consultant

Working days: Mon - Fri
Working Hours: 9.30am - 6pm (On standby to acknowledge messages after working hours when necessary)
Working location: Ubi
Salary: $3,500 to $5,000

Industry: Sports & Fitness Service Provider for Government Agencies, Schools as well as Corporate Companies.

Requirement:

• Degree in any discipline from a recognized institution are welcome.
• To possess at least two to three years of relevant working experience

Job Responsibilities:

• Planning and executing health and fitness activities in workplaces for working adults
• Conduct regular venue visits / audits
• Content creation for festive / thematic activities
• Maintain close communication with stakeholders
• Ability to work with both in-house and external providers to ensure project success
• Monitor KPIs to ensure delivery of key project outcomes
• Generate monthly report for stakeholders
• Responsible for acknowledging messages in the HWE Facil group chat, triggering BAP cancellations and informing HPB after working hours

Chin See Min Reg No. : R22107450

The Supreme HR Advisory Pte Ltd EA No. : 14C7279

WhatsApp: +65 90820021 (Kyler)

Email: [email protected]

Working Days: Monday – Friday (8.30am – 6.30pm)
Salary: $5k - $6k
Working Location: Ubi

Roles & Responsibilities

• To oversee & manage all accounts functions, supervise Accounts Executive, and manage external accounting service provider.
• Manage all AR accounts receivable functions, which include invoicing via Sage Accounting software, progress claim, accrued revenue, WIP, and follow-up with debtors on receivables.
• Manage all AP functions, including sales commission system.
• To reconcile and manage bank accounts in different currencies daily.
• To manage bank applications such as Letter of Credit and Performance Bond.
• To check and approve the work of outsource accounting company, which undertakes the functions of bookkeeping, GST, and annual tax returns.
• Ensure the accounting process complies with the law.
• Assist with &/or prepare cashflow forecasting reports.
• Assist with &/or prepare any other regulatory submissions.
• Assist with &/or prepare financial reports for HQ in Japan.
• To work closely with other departments (sales / project / supply chain) from beginning to the end of each project, to ensure receivables and payables are handled in proper compliance with accounting procedures, on time, and till completion.
• Any other ad hoc duties assigned.

Education and Experience:

• Bachelor’s degree in accounting
• Minimum 10 years of experience in Accounts
• Minimum 3 years of experience as Accounts Manager

The Supreme HR Advisory Pte. Ltd | 14C7279

Gan Kai Le | R23112683

WhatsApp: +65 90820021 (Kyler)

Email: [email protected]

Working Days: 6 Days a week
Working Hours : 10am – 8pm
Location: Bukit Batok / Funan
Salary :$1700 -$2300 + Commission

Requirements:

• Min 2 years of relevant working experience

Responsibilities:

• Provide professional skin consultation and analysis for clients
• Perform a diverse range of facial treatments for clients
• Selling facial packages and skincare products to clients according to their needs
• Maintain high customer service standards.

The Supreme HR Advisory Pte. Ltd | 14C7279

Gan Kai Le | R23112683

WhatsApp: +65 90820021 (Kyler)

Email: [email protected]

Working Days: 5 Days, Monday to Friday

Working Hours: 8.30am – 6pm

Location: Bukit Batok, West Region

Salary: $2,000 - $2,700 (AWS + Medical Benefit + OT if applicable)

Our client is a resourceful and proficient one-stop freight forwarding company with a worldwide network of agencies.

Job Description

• Follow up on customer enquiries, agents & complaints
• Arrange trucking, transportation & collection
• Co-ordinate & monitor shipment with carriers and clients
• Process custom permit
• Process booking for shipments with shipping lines/consol & prepare shipping documents
• Ensure all cargoes are send in good condition and if any damage shall revert to customer immediately
• Keep Sales Personnel informed about their bookings
• Assist with billing, input job reference and closing jobs
• Support in all aspect of sales and operational activities
• Other ad-hoc duties as assigned by the supervisor

Job Requirements:

• Candidate must possess at least Diploma/Advanced/Higher/Graduate Diploma in Logistic/Transportation or equivalent
• At least 2 year(s) of relevant experience, preferably in Freight Forwarding / Shipping industry.
• Proficient in MS Office applications, Portnet
• Preferably specializing in Logistics/Supply Chain or equivalent.
• Preferably experienced in shipping systems, such as online booking, declaring custom permit

The Supreme HR Advisory Pte. Ltd | 14C7279

Gan Kai Le | R23112683

Job Info:

• Monday to Friday
• 42.5 hours per week; Rotational Shifts
• Central - Tanglin/ Queenstown / Bishan / Balmoral (Newton) / Sixth Avenue
• North East - Jalan Tani (Kovan) / Bartley (Tai Seng)
• East - East Coast (Kembangan)

Job Scope:

Strategic Leadership and Management:

• Develop and implement frameworks to enhance Centre operations.
• Ensure compliance with industry regulations and organizational standards.
• Set and maintain health, safety, nutritional, and hygiene standards.
• Lead in modelling the Centre’s mission, vision, and values.
• Establish strategies for sustained collaborative partnerships with stakeholders.

Staff Development and Operations:

• Foster a culture of mentoring, coaching, and skill development.
• Develop proactive strategies to address staff challenges effectively.
• Implement effective classroom management strategies.
• Evaluate and enhance the quality of the learning environment.
• Promote a collaborative culture among staff and stakeholders.

Strategic Planning and Community Engagement:

• Establish the school's strategic direction aligned with company goals.
• Develop long- and short-term development strategies.
• Monitor and adjust development plans to ensure progress.
• Review and update standard operating procedures (SOP) for efficiency.
• Direct efforts in parent partnership and community engagement.

Please submit your updated resume by using the APPLY NOW BUTTON

By submitting your personal data and/or resume to us in connection with your job application, you will be deemed to have agreed and consented to us in collecting, using, retaining, and disclosing your personal data and/or resume to prospective employers for the purpose of the evaluating, processing and administration by company relating to this job application.

*We regret to inform you that only shortlisted candidates would be notified* We wish you all the best in your career search.

You are welcome to visit our website at http://www.rkgroup.sg/

RK Recruitment Pte Ltd | EA License No.: 20C0280
Chan He Guang | EA Personnel No.: R23117560

Admissions Officer

Working Time: Monday to Friday, 8.30am – 6pm
Working Location: Haw Par Villa (Nearest MRT)
Salary: $2800 - $3500

Overview for the role:

The role will provide administration support in Marketing and Admissions department and to provide comprehensive services to students and staff and maintain the applicable student management systems for the university.

Job Duties:

Student Contracts and Student’s Pass Management

• Update student’s records status on Student Management systems to ensure accuracy of record.
• Process Student’s Pass applications and Student’s Pass cancellation for each study period on system
• Maintain records of the application, payment, approval, and formality completions of Student’s Pass.
• Ensure all Student’s Pass changes have relevant approvals in line with policy.
• Maintain up-to-date knowledge of Student’s Pass requirements.

Student Contracts

• Assist in the preparation and checking of Student Contracts.
• Execute student contracts in accordance with the procedures and in line with policy.
• Maintain up-to-date knowledge of Student Contracts policies and procedures.

Others

• Ensure file circulation to relevant departments is conducted timely.
• Maintain student’s medical insurance coverage records.
• Provide student services support on Student Contract and Student’s Pass enquiries.
• Ad-hoc tasks assigned by the Senior Admissions Officer.

Job Requirements:

• Diploma in Business Administration / relevant discipline
• Preferable with experience in dealing with International Students

The Supreme HR Advisory Pte Ltd || 14C7279

R22111009 Cheng Kai Ling

Healthcare Cleaner/ Medical Facility Janitor

Your Responsibilities Will Include: (Inpatient/ Out-Patient)

1. Performing general cleaning tasks throughout the site
2. Maintain the cleanliness of the room/ bed for turn around patients.
3. Following all occupational health and safety policies and procedures
4. Maintaining cleaning records and meeting compliance standards
5. Providing excellent customer service and communicating positively with all customers

Requirement:

1. Bachelor in any fields
2. no experience required
3. Training provided
4. willing to work night shifts

Interested party please apply and attached your resumes

Job Info:

• Salary : Basic up to $7000 + VB
• Working Hours: Monday - Thursday: 8:30am to 6pm; Friday: 8:30am - 5:30pm (Weekends on Standby Arrangement)
• Location: Pioneer (Company transport at designated pick up point)

Job Scope:

• Manage the full spectrum of accounting functions, including Accounts Receivables and Payables, Inventories, Fixed Assets, and General Ledger
• Provide assistance with SAP and IT accounting system issues
• Take an active role in developing, reviewing, and improving current financial policies, procedures, internal controls, and systems, as well as updating SOPs
• Supervise a team of Accounts Executives

Please submit your updated resume by using the APPLY NOW BUTTON

By submitting your personal data and/or resume to us in connection with your job application, you will be deemed to have agreed and consented to us in collecting, using, retaining, and disclosing your personal data and/or resume to prospective employers for the purpose of the evaluating, processing and administration by company relating to this job application.

*We regret to inform you that only shortlisted candidates would be notified*

We wish you all the best in your career search.

You are welcome to visit our website at http://www.rkgroup.sg/

RK Recruitment Pte Ltd | EA License No.: 20C0280

Chou Jia Hooi | EA Personnel No.: R23115147

Responsibilities:

• Installs foundations, walls, floors, ceilings, and roofs using materials such as: wood, steel, metal, concrete, plastics, and composites of multiple materials.
• Fits and installs window frames, doors, door frames, door hardware, interior and exterior trim using a carpenter’s level, plumb bob, and laser levels.
• Erects scaffolding and ladders for assembling structures above ground levels.
• Studies specifications in blueprints, sketches, or building plans to prepare project layout and determine dimensions and materials required.
• Shapes or cuts materials to specified measurements, using hand tools, machines, or power saws.
• Follows established safety rules and regulations and maintaining a safe and clean environment.
• Builds or repairs cabinets, doors, frameworks, floors, or other wooden fixtures used in buildings, using woodworking machines, hand tools, or power tools.
• Assembles and fastens materials to make frameworks or props, using hand tools and wood screws, nails, dowel pins, or glue.
• Removes damaged or defective parts or sections of structures and repair or replace, using hand tools.
• Inspects ceiling or floor tile, wall coverings, siding, glass, or woodwork to detect broken or damaged structures.
• Moves necessary materials around jobsite as assigned.
• Cleans up worksite debris

Requirements:

• Proven experience as carpenter
• Hands-on experience in working with carpentry materials
• Excellent understanding of carpentry techniques and methods of installation and construction
• Proficient in using electrical and manual equipment and measurement tools (powered saws, hammers, rulers etc.)
• Ability to read technical documents and drawings
• Willingness to always follow safety guidelines
• Good knowledge of English
• Good understanding of basic math
• Good physical condition and endurance

Responsibilities:

• Handle MDF and MPRF costing sheets when needed
• Cold calling or other means of generating interest from potential clients
• Assist on administrative tasks and other internal support when required
• Handle Quotation Request from the assigned list of Resellers and Support all Enquiries pertaining to this set of resellers
• Weekly update of Funnel Report on all quotation sent out to overseas account if any
• Monitor Renewals potential (both Product & TS) and send quotation 1-2 months ahead of the expiry date to all resellers
• Order Processing inclusive of overseas order
• Special Pricing Approval (SPA) request to vendor if required
• Export Permit Licensing Request to vendor for all government and government link project
• Order Tracking and Shipment Release
• Arrange/Coordinate for Delivery on Demo Equipment with store as well as resellers

JOB REQUIREMENTS

• Possess at least a tertiary qualification.
• Have effective communication skills both orally and written
• Possess good interpersonal skills to work well with all level of staff
• Be meticulous, attention to detail and follow-up
• Work well within a team environment
• Be proficient in MS Office applications

Responsibilities:

• Loading and unloading cargoes from and to the containers
• General warehousing and housekeeping duties
• Responsible to complete the job process from Inbound to Outbound
• Ensure that the administration work that goes along with the processes are conducted in a proper manner
• Ensure proper records and for the stock/cargo kept in the warehouse
• Working together with Warehouse Coordinator to run the day to day operations
• Ad hoc work as and when may be assigned

Requirements:

• Be proactive towards clients and staff
• Possess high integrity and strong commitment
• A good team player and yet able to work independently
• Able to work on Saturdays for half day
• Working hours: Monday – Friday, 9am – 6pm, Saturday, 9.30am – 6pm
• Location: Toh Guan

Responsibilities:

• Welcoming and seating guests
• Taking food and beverage orders from guests
• Having knowledge of the general wine, beer, and alcoholic beverages the club serves
• Able to give suggestions based on customers' preference
• Always maintain a clean and tidy area
• Handling multiple tables and tasks in an efficient manner
• Transport is provided
• Assist in any ad-hoc tasks assigned

Requirements:

• Provide excellent customer service in a fast-paced environment
• Proactive, team player
• Exceptional interpersonal & communication skills
• Able to work night shift, weekends and holidays
• Approachable, with a professional appearance
• Have an eye for detail and understanding guests' needs

• Well Established Company
• Basic $2500 - $3200 + AWS + Variable Bonus
• Excellent Welfare and Benefits + Career progression
• Working location: Tuas (Company Transport Provided)
• Working hours: Normal Working Hours

Job Responsibilities:

• Prepare safety document (RA, MS, SWP, FPP)
• Arrange SIC
• Renew OSHAH
• Submission of document to relevant authorities
• Site survey, coordination, and meeting
• Support Workplace safety matter at job site and perform relevant duties as and when assigned by the superior
• Maintain proper records and documents required by the relevant authority
• HDB, MOM matter
• Lifting gear renewal
• Dormitory matter and house keeping
• Other ad-hoc duties as assigned

Job Requirements:

• Minimum GCE ‘O’ level and above
• Prefer Workplace Safety & Health (WSHO) certificate or relevant certification
• Possess own motorcycle

Candidates are encouraged to apply this position via Apply Now button with the following information in the resume

• Work experiences and job responsibilities
• Current and Expected salary
• Reason for leaving
• Date of availability
• Education background

We regret that only shortlisted candidates will be contacted.

LIONG ZHAO GUAN (R22107632)

EA Recruitment Pte Ltd

EA License No: 21C0492

Responsibilities:

• Provide quality customer service and housekeeping duties
• Assist in opening and closing of the outlet
• Prepare and serve foods to customer
• Marketing menu items to customers
• Handle cashiering duties
• Able to handle customers skillfully to ensure full satisfaction
• Establish rapport with guests
• Maintain clear records of stocks and inventories
• Any other duties as assigned

Requirements:

• No experience in similar field are required
• F&B Hygiene Certificate
• Excellent communication skills
• Commitment to quality service
• Service excellence
• Food and Beverage knowledge