Relationship Manager in London

Are you successful in selling professional services, consulting, and/or resource augmentation into financial institutions? Do you have deep, practical knowledge of the banking and capital markets client landscape? Are you looking for a genuinely career-defining opportunity within a unique, innovative, and rapidly scaling business? This could be the opportunity for you!

About G MASS Consulting

We are seeking a Client Partner (Sales & Relationship Management) to join our London office, focusing on our Banking & Capital Markets clients. This is a client‐facing role that combines strategic relationship management with commercial growth responsibilities. The successful candidate will act as a trusted advisor to clients while also driving revenue by identifying, developing, and closing new opportunities.

G MASS Consulting is a specialist resource augmentation consultancy focused on Financial Services. We partner with clients across banking, capital markets, investment management, and the London insurance market, helping them achieve success by providing expert consultants, industry knowledge, and innovative solutions. ace is the financial services sector's first dedicated Post‐Digital Advisory, positioned to help financial institutions harness emerging technologies to achieve real competitive differentiation. ace is a G MASS business – this role will cover both G MASS Consulting and ace capabilities.

Key Responsibilities

• Build, manage, and deepen relationships with G MASS key clients and high‐potential prospects.
• Act as a trusted advisor to senior stakeholders, demonstrating credibility and insight.
• Ensure governance and oversight of consultants and service delivery on client engagements, relevant to your key accounts, maintaining satisfaction and service quality.
• Map client accounts, thoroughly understand their strategy, organisation structure, performance, culture & way of working.
• Provide industry insight by staying abreast of trends, regulatory change, and market challenges; becoming the in‐house thought leader for your accounts & sector.
• Bring value to every client interaction by asking the right questions, uncovering challenges, and offering solutions tailored to client needs.
• Identify and qualify new opportunities within existing accounts and targeted prospects.
• Drive account growth by aligning G MASS and ace consulting, advisory and resource augmentation services with client objectives.
• Prospect into new functional areas, navigating client organisations to establish new relationships.
• Develop account growth plans to deliver account and sector financial targets.
• Collaborate with resourcing, business management, and technology teams to progress and close opportunities, owning these from start to finish.
• Maintain and grow a healthy sales pipeline, ensuring balance between short‐term wins and long‐term strategic growth.
• Lead the creation of Statements of Work (SoWs), proposals, and scoped service offerings.
• Use Monday.com CRM to track opportunities, maintain accurate pipeline data, and create transparency across the business.
• Work with marketing, lead generation and partners to generate leads, campaigns, and opportunities.
• Ensure financial targets (revenue and gross profit) are met, while prioritising long‐term relationship value.
• Understand utilisation, delivery economics, and margins associated with consulting and resource deployment.

Skills & Experience

• Experience / background in consulting firms, specialist resourcing providers, services‐led tech or data vendors, managed service providers, and firms selling into Operations, Risk, Compliance, Finance, or Technology functions within banks / capital market organisations.
• Experience running SoWs, proposals, scoping work, and shaping service offerings (not financial products).
• Strong relationship‐building skills with the ability to influence senior decision‐makers.
• Track record of identifying opportunities and achieving sales growth in a services‐led environment.
• Ability to combine consultative selling with commercial drive.
• Strong account planning, organisational mapping, and stakeholder management skills.
• Comfortable engaging across multiple buying personas and functional areas.
• Excellent communication and presentation skills.
• Proficiency in CRM tools (experience with Monday.com a plus).
• Motivated to build your personal brand in sector and operate as a trusted advisor.

What We Offer

• The chance to join a fast‐growing consultancy that is rethinking the way consulting is done; leaner & efficient, and more client‐focused.
• A stellar portfolio of top‐tier clients across banking, capital markets, investment management, and insurance.
• The opportunity to make a massive personal impact; you'll never be a cog in a big machine here. Your ideas and contribution will directly shape our growth and success.
• A highly collaborative culture where the team genuinely gels and supports one another.
• A modern, entrepreneurial environment where you can blend consultative relationship management with commercial growth.
• A competitive base salary plus performance‐based bonus, with clear progression opportunities.
• We work best together; this role is 5 days a week in our London office, where collaboration and client focus come first.
• Strong communication and interpersonal skills.