General Foreman Pipe Installation - Waste Water I am working with a major civil engineering contractor delivering a significant wastewater infrastructure scheme in the East Midlands. We are currently seeking an experienced General Foreman with a strong background in large-diameter pipeline installation to support ongoing site operations near Loughborough. The Role As General Foreman, you will take responsibility for the day-to-day supervision of site activities, with a key focus on ductile iron pipeline installation (up to 1400mm diameter). You will lead site teams, coordinate subcontractors, and ensure works are delivered safely, to programme, and to the required quality standards. Key Responsibilities Supervising pipe laying and associated civils works on wastewater schemes Managing installation of large-diameter ductile iron pipelines (up to 1400mm) Leading site operatives and subcontractors Ensuring works are delivered in line with RAMS and project programme Maintaining high standards of health, safety, quality and productivity Liaising with site management and engineering teams Skills & Experience Required Proven experience as a General Foreman on wastewater or utilities projects Strong background in dirty water / wastewater infrastructure Hands-on experience with large-diameter ductile iron pipelines Ability to manage crews, subcontractors and daily site activities Solid understanding of health & safety within a live utilities environment Tickets / Qualifications (Preferred) Gold CSCS SSSTS or SMSTS EUSR (Water Hygiene advantageous) What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
May 19, 2026
Seasonal
General Foreman Pipe Installation - Waste Water I am working with a major civil engineering contractor delivering a significant wastewater infrastructure scheme in the East Midlands. We are currently seeking an experienced General Foreman with a strong background in large-diameter pipeline installation to support ongoing site operations near Loughborough. The Role As General Foreman, you will take responsibility for the day-to-day supervision of site activities, with a key focus on ductile iron pipeline installation (up to 1400mm diameter). You will lead site teams, coordinate subcontractors, and ensure works are delivered safely, to programme, and to the required quality standards. Key Responsibilities Supervising pipe laying and associated civils works on wastewater schemes Managing installation of large-diameter ductile iron pipelines (up to 1400mm) Leading site operatives and subcontractors Ensuring works are delivered in line with RAMS and project programme Maintaining high standards of health, safety, quality and productivity Liaising with site management and engineering teams Skills & Experience Required Proven experience as a General Foreman on wastewater or utilities projects Strong background in dirty water / wastewater infrastructure Hands-on experience with large-diameter ductile iron pipelines Ability to manage crews, subcontractors and daily site activities Solid understanding of health & safety within a live utilities environment Tickets / Qualifications (Preferred) Gold CSCS SSSTS or SMSTS EUSR (Water Hygiene advantageous) What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
ROLLER OPERATOR Scotland Vision Personnel Ltd Rate of Pay: £20.50 per hour (CIS) Project Duration: 4 years Working Pattern: 10 days on / 4 days off Shift Hours: 10 hours per shift Location: Scotland Start Date: September About the Role This is a long-term opportunity on a major construction project in Scotland. We are looking for an experienced, reliable Roller Operator looking for consistent, well-paid work over an extended programme. The project offers excellent earning potential with a structured rotation pattern. Key Duties & Responsibilities Operating a ride-on roller to compact subbase, capping layers and finished surfaces to specification Working closely with the groundworks and civils team to ensure layers are compacted to the required standard Carrying out pre-use checks and ensuring the roller is maintained in a safe and operational condition Following site traffic management plans and operating within designated exclusion zones Liaising with the site engineer and foreman regarding compaction requirements and testing Supporting general groundworks operations as required between rolling activities Requirements Valid CPCS (A31) or NPORS card for Roller essential CSCS card essential Proven experience operating a roller on civils or groundworks projects Understanding of compaction requirements and layer depths Strong awareness of site safety and health requirements Desirable Experience on large residential or infrastructure schemes Additional plant tickets Plate compactor or wacker plate experience
May 19, 2026
Full time
ROLLER OPERATOR Scotland Vision Personnel Ltd Rate of Pay: £20.50 per hour (CIS) Project Duration: 4 years Working Pattern: 10 days on / 4 days off Shift Hours: 10 hours per shift Location: Scotland Start Date: September About the Role This is a long-term opportunity on a major construction project in Scotland. We are looking for an experienced, reliable Roller Operator looking for consistent, well-paid work over an extended programme. The project offers excellent earning potential with a structured rotation pattern. Key Duties & Responsibilities Operating a ride-on roller to compact subbase, capping layers and finished surfaces to specification Working closely with the groundworks and civils team to ensure layers are compacted to the required standard Carrying out pre-use checks and ensuring the roller is maintained in a safe and operational condition Following site traffic management plans and operating within designated exclusion zones Liaising with the site engineer and foreman regarding compaction requirements and testing Supporting general groundworks operations as required between rolling activities Requirements Valid CPCS (A31) or NPORS card for Roller essential CSCS card essential Proven experience operating a roller on civils or groundworks projects Understanding of compaction requirements and layer depths Strong awareness of site safety and health requirements Desirable Experience on large residential or infrastructure schemes Additional plant tickets Plate compactor or wacker plate experience
General Foreman Pipe Installation - Waste Water I am working with a major civil engineering contractor delivering a significant wastewater infrastructure scheme in the East Midlands. We are currently seeking an experienced General Foreman with a strong background in large-diameter pipeline installation to support ongoing site operations near Loughborough. The Role As General Foreman, you will take responsibility for the day-to-day supervision of site activities, with a key focus on ductile iron pipeline installation (up to 1400mm diameter). You will lead site teams, coordinate subcontractors, and ensure works are delivered safely, to programme, and to the required quality standards. Key Responsibilities Supervising pipe laying and associated civils works on wastewater schemes Managing installation of large-diameter ductile iron pipelines (up to 1400mm) Leading site operatives and subcontractors Ensuring works are delivered in line with RAMS and project programme Maintaining high standards of health, safety, quality and productivity Liaising with site management and engineering teams Skills & Experience Required Proven experience as a General Foreman on wastewater or utilities projects Strong background in dirty water / wastewater infrastructure Hands-on experience with large-diameter ductile iron pipelines Ability to manage crews, subcontractors and daily site activities Solid understanding of health & safety within a live utilities environment Tickets / Qualifications (Preferre d) Gold CSCS SSSTS or SMSTS EUSR (Water Hygiene advantageous) What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
May 16, 2026
Seasonal
General Foreman Pipe Installation - Waste Water I am working with a major civil engineering contractor delivering a significant wastewater infrastructure scheme in the East Midlands. We are currently seeking an experienced General Foreman with a strong background in large-diameter pipeline installation to support ongoing site operations near Loughborough. The Role As General Foreman, you will take responsibility for the day-to-day supervision of site activities, with a key focus on ductile iron pipeline installation (up to 1400mm diameter). You will lead site teams, coordinate subcontractors, and ensure works are delivered safely, to programme, and to the required quality standards. Key Responsibilities Supervising pipe laying and associated civils works on wastewater schemes Managing installation of large-diameter ductile iron pipelines (up to 1400mm) Leading site operatives and subcontractors Ensuring works are delivered in line with RAMS and project programme Maintaining high standards of health, safety, quality and productivity Liaising with site management and engineering teams Skills & Experience Required Proven experience as a General Foreman on wastewater or utilities projects Strong background in dirty water / wastewater infrastructure Hands-on experience with large-diameter ductile iron pipelines Ability to manage crews, subcontractors and daily site activities Solid understanding of health & safety within a live utilities environment Tickets / Qualifications (Preferre d) Gold CSCS SSSTS or SMSTS EUSR (Water Hygiene advantageous) What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
We are seeking an experienced General Foreman to work on a residential groundworks project in East Lothian for a reputable civils contractor. Overseeing day-to-day site operations, ensuring safety, quality, and productivity targets are met. Requirements: Proven experience in groundworks or civils projects Strong leadership and communication skills SSSTS/SMSTS & First Aid certified Ability to manage subcontractors and direct labour
Oct 07, 2025
Contractor
We are seeking an experienced General Foreman to work on a residential groundworks project in East Lothian for a reputable civils contractor. Overseeing day-to-day site operations, ensuring safety, quality, and productivity targets are met. Requirements: Proven experience in groundworks or civils projects Strong leadership and communication skills SSSTS/SMSTS & First Aid certified Ability to manage subcontractors and direct labour
Role Site Engineer Reporting to Section Engineer / Senior Engineer Location: Copthall Tunnel North (UB9 6JL) Key Responsibilities • Day to day work site coordination and planning to ensure the works are carried out safely and efficiently. • Setting up work sites with General Foreman/ Works manager • Setting out various aspects of the works using GPS and Total Station • Working with the subcontractor to ensure the timely preparation Risk Assessment, Method Statements, Work Package Plans, Task Briefing Sheets, Inspection and Test Plans, Permits, Consents for the works and that these are implemented. • Effective recording of site works and delays using site diaries. • Ensuring Permit to Dig, Temporary Works and other safety systems are implemented • Liaison with the Section Foreman to ensure the adherence to safe methods of work. • Ensuring all temporary works needs are identified sufficiently early and completed in accordance with the relevant procedures. • Raising Non-Conformance Reports, Field Change Designs and Technical Queries. • Provide support, assistance, and information to other teams as necessary such as Community Relations, 3rd Parties and Logistics. Health, Safety & Environment • Ensuring health and safety is given the highest priority in the delivery of the works • Be familiar with, and demonstrate commitment to the requirements of the Health & Safety and Environmental Policies • Ensure that the Health Safety and Environmental Policies and Procedures are effectively communicated to the workforce and implemented • Work collaboratively with the HS2 team and other contractors, subcontractors works packages to achieve the overall project goals Other Responsibilities • Ad hoc duties as required by the job Required Qualifications & Skills • Update the 6-weekly programme • Manage the supply chain to ensure that they deliver in an efficient way and in accordance with the Safety, Environmental and Quality requirement • Support with progressing quality handover: preparations of check-sheets and redlines • Ensuring all quality checks are carried out in accordance with the Inspection Test Plans (ITP) and properly recorded. • Degree or equivalent in civil / Environmental engineering or similar • Prior experience in Civil engineering / Infrastructure projects • Relevant CSCS Card Preferred Experience • Preferred experience in drainage, highway civils, earthworks
Oct 06, 2025
Contractor
Role Site Engineer Reporting to Section Engineer / Senior Engineer Location: Copthall Tunnel North (UB9 6JL) Key Responsibilities • Day to day work site coordination and planning to ensure the works are carried out safely and efficiently. • Setting up work sites with General Foreman/ Works manager • Setting out various aspects of the works using GPS and Total Station • Working with the subcontractor to ensure the timely preparation Risk Assessment, Method Statements, Work Package Plans, Task Briefing Sheets, Inspection and Test Plans, Permits, Consents for the works and that these are implemented. • Effective recording of site works and delays using site diaries. • Ensuring Permit to Dig, Temporary Works and other safety systems are implemented • Liaison with the Section Foreman to ensure the adherence to safe methods of work. • Ensuring all temporary works needs are identified sufficiently early and completed in accordance with the relevant procedures. • Raising Non-Conformance Reports, Field Change Designs and Technical Queries. • Provide support, assistance, and information to other teams as necessary such as Community Relations, 3rd Parties and Logistics. Health, Safety & Environment • Ensuring health and safety is given the highest priority in the delivery of the works • Be familiar with, and demonstrate commitment to the requirements of the Health & Safety and Environmental Policies • Ensure that the Health Safety and Environmental Policies and Procedures are effectively communicated to the workforce and implemented • Work collaboratively with the HS2 team and other contractors, subcontractors works packages to achieve the overall project goals Other Responsibilities • Ad hoc duties as required by the job Required Qualifications & Skills • Update the 6-weekly programme • Manage the supply chain to ensure that they deliver in an efficient way and in accordance with the Safety, Environmental and Quality requirement • Support with progressing quality handover: preparations of check-sheets and redlines • Ensuring all quality checks are carried out in accordance with the Inspection Test Plans (ITP) and properly recorded. • Degree or equivalent in civil / Environmental engineering or similar • Prior experience in Civil engineering / Infrastructure projects • Relevant CSCS Card Preferred Experience • Preferred experience in drainage, highway civils, earthworks
Kier Nuclear Projects - Expression of Interest About Kier At Kier Group, our purpose is to sustainably deliver vital infrastructure across the UK and build lasting legacies through supporting our clients and communities in which we operate. With an order book value in excess of £10bn, we're committed to building resilience and creating innovative solutions for our customers. Within our Natural Resources, Nuclear and Networks business we have exciting opportunities in constructing, maintaining, and upgrading vital nuclear facilities. At Kier we believe in 'Building for a Sustainable World' and clean energy is at the heart of that. Be Part of Shaping the Future in Suffolk As we prepare for future growth and expansion in the Suffolk region, we are inviting expressions of interest from skilled and ambitious professionals who are ready to take the next step in their careers. We are particularly interested in hearing from individuals for the following roles: Works Manager Chief Engineer Engineering Manager Office Manager Section Engineer Site Engineers General Foreman Lifting Operations Supervisors Planner Plant Operatives General Operatives Ground workers Drain Layers Concrete workers This is your opportunity to register your interest and position yourself for potential roles on upcoming major projects that will help shape the local landscape. Your Experience We're all about finding potential here at Kier, and transferrable skills are always welcome! We are particularly interested in hearing from people with the following: Tier 1 or Tier 2 Construction experience Buried Networks and Heavy Civils experience Driving Licence What Happens Next Once you've registered your interest, your details will be securely saved in our talent pool and highlighted against upcoming opportunities. As soon as a role becomes available that matches your skills and preferences, we will reach out to you directly so you can be among the first to explore the opportunity. By registering now, you're putting yourself at the front of the queue for future positions and giving yourself the best chance to step into a rewarding career when the perfect role arises. Flexible Working Built for You We understand that a one size fits all approach to working hours doesn't reflect reality, and we are fully open to flexible working arrangements, including part-time hours, compressed hours, and job shares. We also operate an agile working approach, which allows our teams to work in ways that balance business needs with individual circumstances, helping you perform at your best while maintaining a healthy work life balance. Rewards and benefits We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here . Diversity and inclusion Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here . As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview. We look forward to seeing your application to =KW1
Oct 03, 2025
Full time
Kier Nuclear Projects - Expression of Interest About Kier At Kier Group, our purpose is to sustainably deliver vital infrastructure across the UK and build lasting legacies through supporting our clients and communities in which we operate. With an order book value in excess of £10bn, we're committed to building resilience and creating innovative solutions for our customers. Within our Natural Resources, Nuclear and Networks business we have exciting opportunities in constructing, maintaining, and upgrading vital nuclear facilities. At Kier we believe in 'Building for a Sustainable World' and clean energy is at the heart of that. Be Part of Shaping the Future in Suffolk As we prepare for future growth and expansion in the Suffolk region, we are inviting expressions of interest from skilled and ambitious professionals who are ready to take the next step in their careers. We are particularly interested in hearing from individuals for the following roles: Works Manager Chief Engineer Engineering Manager Office Manager Section Engineer Site Engineers General Foreman Lifting Operations Supervisors Planner Plant Operatives General Operatives Ground workers Drain Layers Concrete workers This is your opportunity to register your interest and position yourself for potential roles on upcoming major projects that will help shape the local landscape. Your Experience We're all about finding potential here at Kier, and transferrable skills are always welcome! We are particularly interested in hearing from people with the following: Tier 1 or Tier 2 Construction experience Buried Networks and Heavy Civils experience Driving Licence What Happens Next Once you've registered your interest, your details will be securely saved in our talent pool and highlighted against upcoming opportunities. As soon as a role becomes available that matches your skills and preferences, we will reach out to you directly so you can be among the first to explore the opportunity. By registering now, you're putting yourself at the front of the queue for future positions and giving yourself the best chance to step into a rewarding career when the perfect role arises. Flexible Working Built for You We understand that a one size fits all approach to working hours doesn't reflect reality, and we are fully open to flexible working arrangements, including part-time hours, compressed hours, and job shares. We also operate an agile working approach, which allows our teams to work in ways that balance business needs with individual circumstances, helping you perform at your best while maintaining a healthy work life balance. Rewards and benefits We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here . Diversity and inclusion Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here . As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview. We look forward to seeing your application to =KW1
Due to the award of a major Water related scheme in the South West, our client, a top regional Civil Engineering Contractor has the need for a General Foreman to support a Pumping Station Construction scheme. The works involve the construction and refurbishment of pumping stations, M&E and MEICA works, confined space works, over pumping and dewatering works. This role is to supervise the main design and build works to two pumping stations, the MEICA and M&E elements are subcontract works, and the civils element will be self-delivery. Other duties will include overseeing labour and contractors on site, health & safety, daily diary and attending regular progress meetings with the client. To be considered, you will have SMSTS, First Aid and CSCS and will also have experience in the Water sector and ideally on Pumping Station schemes within this. In return, a top day rate is on offer which is Outside IR35 and comes with an immediate start and ongoing contract. This is a top role so if interested, please send a copy of your CV to Dave Rowe by email or call Dave on (phone number removed) for further information.
Oct 01, 2025
Contractor
Due to the award of a major Water related scheme in the South West, our client, a top regional Civil Engineering Contractor has the need for a General Foreman to support a Pumping Station Construction scheme. The works involve the construction and refurbishment of pumping stations, M&E and MEICA works, confined space works, over pumping and dewatering works. This role is to supervise the main design and build works to two pumping stations, the MEICA and M&E elements are subcontract works, and the civils element will be self-delivery. Other duties will include overseeing labour and contractors on site, health & safety, daily diary and attending regular progress meetings with the client. To be considered, you will have SMSTS, First Aid and CSCS and will also have experience in the Water sector and ideally on Pumping Station schemes within this. In return, a top day rate is on offer which is Outside IR35 and comes with an immediate start and ongoing contract. This is a top role so if interested, please send a copy of your CV to Dave Rowe by email or call Dave on (phone number removed) for further information.
My client are a regional groundwork and civil engineering business. They are looking to onboard a general foreman to help deliver and infrastructure scheme being delivered in Durham. My client operate across both the public and private sector. The scope of works you will be responsible for overseeing will include 278 works, drainage and buried services. General foreman responsibilities: Working alongside and reporting to the site manager. Managing plant, labour and materials. Site supervision. Task briefings. RAMS. Record keeping. Managing health and safety. Liaising with the client and local authorities. General foreman requirements: Right to work in the UK. NVQ level 3 or equivalent. CSCS card. SSSTS/ SMSTS. First aid. EUSR 1 & 2 - Desirable. Previous experience with highways or civils. Full UK driving licence. The next steps to apply for the role! Click the apply button and send your CV.
Sep 23, 2025
Contractor
My client are a regional groundwork and civil engineering business. They are looking to onboard a general foreman to help deliver and infrastructure scheme being delivered in Durham. My client operate across both the public and private sector. The scope of works you will be responsible for overseeing will include 278 works, drainage and buried services. General foreman responsibilities: Working alongside and reporting to the site manager. Managing plant, labour and materials. Site supervision. Task briefings. RAMS. Record keeping. Managing health and safety. Liaising with the client and local authorities. General foreman requirements: Right to work in the UK. NVQ level 3 or equivalent. CSCS card. SSSTS/ SMSTS. First aid. EUSR 1 & 2 - Desirable. Previous experience with highways or civils. Full UK driving licence. The next steps to apply for the role! Click the apply button and send your CV.
Your new company You will be joining a privately-owned and multi-accredited civil engineering contractor based in Birmingham specialising in the delivery of major infrastructure projects across the Midlands region. This multi-sector and established contractor has a strong orderbook and offers excellent opportunities for career progression and professional development. Their commitment to delivering an exceptional standard of work has positioned them as a leader in the industry, and due to continued success, they are actively seeking a General Foreman to join their delivery team. This is a full-time permanent position based initially in the Warwickshire area. Your new role As General Foreman, your responsibilities will include: Managing a team of site engineers and section engineers Ensuring all H&S procedures are complied with Ensuring all aspects of the project are effectively monitored and controlled Delivering the project within programme and budget Managing and monitoring subcontractors Liaising with the client and designers Attending monthly progress meetings and compiling monthly reports Managing quality and environmental plans on site Controlling contract costs Ensuring work is delivered in accordance with the specification. What you'll need to succeed In order to be successful, you must have: Proven experience as a Foreman within the civil engineering industry, ideally on large infrastructure projects Sound leadership and organisational skills Ability to read and interpret blueprints and technical drawings Excellent knowledge of construction processes, equipment and safety procedures CSCS and full UK driving licence. What you'll get in return In return, you will receive: Negotiable starting salary (dependent on experience) Company car or car allowance (£9,000 per annum) 26 days' annual leave plus bank holidays Fuel card Yearly reviews 10% employer pension contribution Continuous training and development Exposure to high-profile and rewarding projects Supportive and collaborative work environment Opportunity to grow and progress your career with an industry-leading contractor and more. What you need to do now If you're interested in this role and meet the criteria above, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk
Sep 22, 2025
Full time
Your new company You will be joining a privately-owned and multi-accredited civil engineering contractor based in Birmingham specialising in the delivery of major infrastructure projects across the Midlands region. This multi-sector and established contractor has a strong orderbook and offers excellent opportunities for career progression and professional development. Their commitment to delivering an exceptional standard of work has positioned them as a leader in the industry, and due to continued success, they are actively seeking a General Foreman to join their delivery team. This is a full-time permanent position based initially in the Warwickshire area. Your new role As General Foreman, your responsibilities will include: Managing a team of site engineers and section engineers Ensuring all H&S procedures are complied with Ensuring all aspects of the project are effectively monitored and controlled Delivering the project within programme and budget Managing and monitoring subcontractors Liaising with the client and designers Attending monthly progress meetings and compiling monthly reports Managing quality and environmental plans on site Controlling contract costs Ensuring work is delivered in accordance with the specification. What you'll need to succeed In order to be successful, you must have: Proven experience as a Foreman within the civil engineering industry, ideally on large infrastructure projects Sound leadership and organisational skills Ability to read and interpret blueprints and technical drawings Excellent knowledge of construction processes, equipment and safety procedures CSCS and full UK driving licence. What you'll get in return In return, you will receive: Negotiable starting salary (dependent on experience) Company car or car allowance (£9,000 per annum) 26 days' annual leave plus bank holidays Fuel card Yearly reviews 10% employer pension contribution Continuous training and development Exposure to high-profile and rewarding projects Supportive and collaborative work environment Opportunity to grow and progress your career with an industry-leading contractor and more. What you need to do now If you're interested in this role and meet the criteria above, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk