Senior Data Science Consultant

Sia; Netherlands; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Competitive salary package

Annual salary increase

Flexible working arrangements

Job summary

Sia is seeking a Senior Consultant specialized in advanced analytics and Generative AI solutions to lead client engagements and manage project teams effectively.

The ideal candidate has a Master's degree in Data Science or a related field, along with 3-6 years of experience. Key responsibilities include developing predictive models and contributing to Sia’s thought leadership.

Competitive salary packages, flexible mobility options, and opportunities for professional development are offered.

Qualifications

• 3-6 years of relevant professional experience or equivalent academic research.
• Proven interest in Data Science and Generative AI.
• Fluency in English; Dutch or French is a plus.

Responsibilities

• Develop predictive and explanatory models using Machine Learning.
• Lead projects leveraging Generative AI and large language models.
• Manage client engagements, providing strategic recommendations.

Skills

Analytical skills

Stakeholder management

Communication skills

Mentoring

Data Science

Generative AI

Education

WO Master's degree in Data Science or related field

Job description

Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativity and driven by responsibility. We’re optimists for change and we help clients initiate, navigate and benefit from transformation. We believe optimism is a force multiplier, helping clients to mitigate downside and maximize opportunity. With expertise across a broad range of sectors and services, our 3,000 consultants serve clients worldwide from 48 locations in 19 countries. Our expertise delivers results. Our optimism transforms outcomes.

To support our growth, we are recruiting Senior Consultants specializing in advanced analytics and Generative AI solutions. You will lead client engagements from strategy through execution, manage stakeholders, and guide project teams toward impactful delivery.

Responsibilities

• Develop and oversee advanced predictive and explanatory models (Machine Learning, econometrics, optimization, and time-series forecasting).

• Lead innovative projects leveraging Generative AI and large language models (LLMs).

• Manage client engagements as a trusted advisor, providing strategic recommendations to middle and senior management.

• Guide multidisciplinary project teams, mentoring team members and ensuring impactful project delivery.

Within Sia, you will:

• Contribute to enhancing Sia’s Data Science and Generative AI offerings through internal training sessions, working groups, and publications.

• Represent Sia at professional events, actively contributing to thought leadership (articles, white papers, webinars).

• Support business development by crafting proposals, identifying collaboration opportunities, and nurturing long‑term client relationships.

Your profile

• Strategic thinker with strong analytical skills and a proactive approach.

• Experienced in clearly communicating complex ideas to varied audiences.

• Effective at managing multiple stakeholders and guiding project teams.

• Demonstrated ability to mentor and develop colleagues.

• Interested in applying innovative analytics and AI solutions to drive sustainability and create meaningful business impact.

• Completed WO Master's degree in Data Science, Econometrics, Applied Mathematics, Computer Science, (Energy) Engineering, or a related technical field involving substantial programming.

• 3-6 years of relevant professional experience (or equivalent academic research).

• Strong analytical mindset with the ability to explore options systematically and synthesize actionable insights.

• You have a strong interest in data and AI-related topics, the ability to quickly build expertise in these areas, and you’re excited about helping our clients seize the opportunities they offer.

• A fast learner who demonstrates strong communication skills, adaptability, and entrepreneurial drive.

• Fluency in English, with excellent communication and presentation abilities. Dutch or French fluency is a plus.

• Proven interest in Data Science, Generative AI, and relevant sectors such as Energy and Finance.

What do we offer?

• Competitive salary package, including annual salary increase, bonuses, and flexible mobility options (company car or personalized mobility plan).

• Tailored training and development opportunities to position you as an expert in your field.

• Flexible working arrangements (office, home, client sites) and international project exposure.

• Collaborative global environment for professional development and knowledge sharing.

Unfortunately, we are unable to provide a work permit for this position.

Sia is an equal opportunity employer. All aspects of employment, including hiring, promotion, remuneration, or discipline, are based solely on performance, competence, conduct, or business needs.