Business Manager

Diametral; Brussel; On-site; EUR 35,000 - 65,000; Full time

Benefits offered by this job

Ownership from start

Access to leadership

Competitive pay

Career growth path

AI-native consulting

Job summary

Diametral is expanding its client portfolio in Data, AI, and technology transformation. You will identify target accounts, reach decision-makers, and create commercial opportunities to grow our business.

Lead recruitment, build a strong team, and ensure high-performance delivery while maintaining a close link to client expectations. The role blends business development with team building and operational growth.

Qualifications

• 0 to 2 years of experience in business development, consulting, tech, or recruitment.
• Genuine commercial drive: you are comfortable reaching out, hearing no, and coming back.
• Excellent written and verbal communication in French and English.

Responsibilities

• Identify target accounts, reach decision-makers, and create commercial opportunities.
• Understand client stakes in depth and translate them into relevant offerings with our experts.
• Build proposals, negotiate, and close.
• Source, assess, and convince high-caliber consultant profiles.
• Run recruitment pipeline with discipline like the commercial pipeline.
• Represent Diametral’s standards and culture to every candidate you meet.

Job description

1. Business development

Open and grow your client portfolio on Data, AI, and technology transformation topics.

• Identify target accounts, reach decision-makers, and create commercial opportunities.

• Understand client stakes in depth and translate them into relevant offerings with our experts.

• Build proposals, negotiate, and close.

Impact.

Diametral’s client base expands with accounts that have real strategic substance.

2. Recruitment and team building

Build the team that delivers on your perimeter.

• Source, assess, and convince high-caliber consultant profiles.

• Run your recruitment pipeline with the same discipline as your commercial pipeline.

• Represent Diametral’s standards and culture to every candidate you meet.

Impact.

Growth is never limited by the quality of the people available to deliver it.

3. Staffing and consultant development

Put the right consultant on the right mission, and keep them growing.

• Match consultant skills and ambitions with client needs and maintain a high activity rate.

• Follow your consultants closely: onboarding, mission reviews, career conversations.

• Anticipate mission ends and prepare the next step before it becomes urgent.

Impact.

Consultants progress, clients get the right expertise, and utilization stays under control.

4. Performance and P&L ownership

Own the economics of your perimeter.

• Track revenue, margin, and FTE growth; understand what drives each of them.

• Build your forecast, monitor your indicators, and act early on deviations.

• Prepare and defend your business reviews with the leadership team.

Impact.

Your perimeter grows profitably, with numbers you can explain and decisions you can justify.

5. Client satisfaction and long-term relationships

Turn a first mission into a durable partnership.

• Stay close to your clients throughout delivery and act on signals early.

• Work hand in hand with the Engines to guarantee delivery quality.

• Extend, renew, and broaden your footprint account by account.

Impact.

Clients come back, and each account becomes a platform rather than a transaction.

6. Firm building

Contribute to how the commercial engine itself is built.

• Improve our commercial and recruitment practices, tools, and rituals.

• Share market intelligence on accounts, competitors, and offerings.

• Contribute to initiatives that structure the firm as it scales.

Impact.

The organization gets stronger as it grows, not heavier.

Why join Diametral

Joining Diametral means joining a company in active construction mode, at a defining moment: global ambition, entrepreneurial energy, and the opportunity to shape how organizations will operate for decades to come.

• Real ownership of a perimeter from your first months, with close coaching.

• Direct access to the leadership team and to executive decision-making.

• Attractive compensation: fixed salary plus uncapped variable.

• A fast path towards Senior Business Manager and management responsibilities, driven by performance rather than tenure.

• The opportunity to contribute to the construction of a leading AI-native consulting firm.

0 to 2 years of experience. Internships, apprenticeships, and first roles in business development, consulting, tech, or recruitment are all relevant. Genuine commercial drive: you are comfortable reaching out, being told no, and coming back. Strong analytical and structuring abilities; you are at ease with numbers and with a P&L logic. Excellent written and verbal communication in French and English. Ability to run several subjects in parallel without dropping any of them. Top-tier business school, engineering school, or university. Strong interest in AI, technology, business building, and entrepreneurship.

Who you are

You are not looking for a comfortable first job. You want ownership and exposure. You would rather build a perimeter than manage an existing one. You measure yourself on results, not on activity. You are comfortable being challenged and held to high standards. You learn fast, and you ask for feedback before you are given it. You believe AI will become the new operating layer of modern organizations.