Key Account Manager

HSS ProService; Greater London; Hybrid; GBP 45,000 - 65,000; Full time

Benefits offered by this job

25 days holiday

Birthday off

Healthcare Cashback Plan

Hybrid working

Free onsite gym

Training & development

Perks platform discounts

Cycle to Work & Holiday Buy

Job summary

HSS ProService is seeking a proactive Key Account Manager to drive growth and manage key contractor accounts across major infrastructure projects in the South of the UK. You will own delivery, collaborate with site teams, and coordinate with operational and supply chain functions to exceed service expectations.

You’ll develop strong customer relationships, monitor performance, and seek opportunities to expand our total offering across HS2, LTC, and related works.

Qualifications

• Experience within construction, infrastructure, hire, utilities, rail, civils, or industrial supply environments.
• Strong experience managing key customer relationships in a fast-paced commercial environment.
• Excellent stakeholder management and relationship-building skills.
• Commercial awareness with the confidence to identify growth opportunities and drive account performance.
• Ability to manage multiple workstreams and priorities across complex live projects.
• Proactive, solutions-focused mindset with strong operational awareness.
• Confidence working both strategically and hands-on within customer environments.
• Excellent communication, organisation, and problem-solving skills.
• Full UK driving licence and willingness to travel across the South regularly.

Responsibilities

• Managing day-to-day delivery across major infrastructure projects and key contractor accounts.
• Building strong relationships with site teams, procurement leads, plant teams, and operational stakeholders.
• Conducting regular customer visits across HS2, LTC, and wider infrastructure projects throughout the South.
• Coordinating plant, equipment, consumables, and service requirements across live project environments.
• Working closely with operational and supply chain teams to ensure projects are delivered on time and within budget.
• Monitoring KPIs, SLAs, and service delivery performance to ensure customer expectations are exceeded.
• Identifying operational improvements and opportunities to enhance customer experience and commercial performance.
• Supporting project mobilisations, planning activity, forecasting, and reporting.
• Identifying opportunities to grow accounts through additional products, services, and solutions across the HSS ProService offering.
• Providing clear updates on project risks, opportunities, actions, and account performance.

Skills

Key account management

Stakeholder management

Relationship-building

Commercial awareness

Strategic thinking

Communication

Organisation

Problem solving

Travel readiness

Job description

A typical day as a Key Account Manager

No two days look exactly the same here, and that’s part of what makes it work.

Key Account Manager, you’ll play a key part in keeping things moving for our customers, suppliers and The Pros around you. You’ll take ownership, solve problems properly, and work with people across the business to make things simpler, faster and better.

You’ll be trusted to get stuck in, make decisions, and see things through.

What you’ll be doing

You’ll join our growing Infrastructure team, supporting some of the UK's largest construction projects including HS2 and the Lower Thames Crossing. As a Key Account Manager, you'll build strong customer relationships, drive account growth, and work closely with operational and supply chain teams to deliver exceptional service across major live infrastructure projects throughout the South.

• Managing day-to-day delivery across major infrastructure projects and key contractor accounts
• Building strong relationships with site teams, procurement leads, plant teams, and operational stakeholders
• Conducting regular customer visits across HS2, LTC, and wider infrastructure projects throughout the South
• Coordinating plant, equipment, consumables, and service requirements across live project environments
• Working closely with operational and supply chain teams to ensure projects are delivered on time and within budget
• Monitoring KPIs, SLAs, and service delivery performance to ensure customer expectations are exceeded
• Identifying operational improvements and opportunities to enhance customer experience and commercial performance
• Supporting project mobilisations, planning activity, forecasting, and reporting
• Identifying opportunities to grow accounts through additional products, services, and solutions across the HSS ProService offering
• Providing clear updates on project risks, opportunities, actions, and account performance

What you’ll bring

We’re looking for someone who knows how to get things done and works well with others to make it happen.

You don’t need to tick every single box, but you’ll likely bring:

• Experience within construction, infrastructure, hire, utilities, rail, civils, or industrial supply environments
• Strong experience managing key customer relationships in a fast-paced commercial environment
• Excellent stakeholder management and relationship-building skills
• Commercial awareness with the confidence to identify growth opportunities and drive account performance
• The ability to manage multiple workstreams and priorities across complex live projects
• A proactive, solutions-focused mindset with strong operational awareness
• Confidence working both strategically and hands-on within customer environments
• Excellent communication, organisation, and problem-solving skills
• Full UK driving licence and willingness to travel across the South regularly

Experience supporting major infrastructure projects such as HS2, highways, rail, energy, civils, or utilities would be highly advantageous.

Most importantly, you’ll bring the mindset of a Pro:

• You take ownership
• You communicate clearly
• You work collaboratively
• You look for better ways to do things
• You see things through properly

What you’ll get back

25 days holiday plus bank holidays

Your birthday off every year to spend how you want

Healthcare Cashback Plan with money back on things like dentists, opticians and sports massages

Flexible and hybrid working

Free onsite gym at head office

Training and development opportunities to keep growing your skills and career

Discounts and cashback through our perks platform

Flexible benefits including Cycle to Work and Holiday Buy

What it’s like here

At HSS ProService, we’re here to take the friction out of hire.

We’ve built a smarter, faster way for businesses to get the tools, equipment and materials they need. We connect customers with trusted suppliers through one simple online marketplace.

But what really makes it work is our people. The Pros.

The ones who step in, solve problems, keep things moving and make life easier for customers and each other.

We use technology, teamwork and bold thinking to make things simpler, clearer and better every day.

The Pros here are Progress Makers, Professionals, Problem Solvers and Proud of the work they do. People who take ownership, back each other, speak honestly and keep things moving.

That means:

• Say it. Own it. See it through.
• Bring in the people power.
• Be straight, be clear.
• Recognise the graft.

No big egos. No overcomplicated processes. Just good people doing good work together.

Different Perspectives, One Platform

We’re not all the same, and that’s what makes us stronger.

Great ideas come from different people, different experiences and different ways of thinking.

Whether you’re starting out, changing careers or looking for your next move, if you’ve got the skills and the drive, we want to hear from you.

Not sure you tick every box? Apply anyway.

If you have questions about the role or recruitment process, email [e-mail] and one of the team will help you out.

We’re on it.

Always making it better.