Chief of Staff

Portera; Amsterdam; On-site; EUR 85,000 - 120,000; Full time

Benefits offered by this job

Direct mentorship from the CEO

Learning and development support

NS Business Card

Job summary

Portera, an Amsterdam-based AI, data and cloud engineering company, is seeking a curious Chief of Staff to work closely with the CEO and cross‑functional teams. You’ll translate priorities into plans, support growth opportunities and connect business and technology delivery.

This role offers hands-on responsibility from day one, with opportunities to influence decisions, manage operations and shape partnerships. You’ll move between big picture strategy and the details that get things done.

Qualifications

• Curiosity, initiative and a strong appetite to learn.
• Analytical thinking and confidence working with numbers, budgets and business information.
• The ability to draw conclusions, suggest practical solutions and take ownership of the next steps.
• Clear written and verbal communication, with the ability to ask thoughtful questions and listen carefully.
• The organisation to manage several priorities and follow work through to completion.
• Confidence working with people at different levels, building trust and constructively challenging when needed.
• An interest in technology and how it creates value for businesses.

Responsibilities

• Support business planning and decisions. Work with the CEO to translate company priorities into clear plans. Analyse business information, assess options and recommend practical next steps.
• Help develop growth opportunities and partnerships. Research opportunities, prepare proposals and discussions, and coordinate the work needed to move them forward.
• Support product development. Help coordinate product initiatives across budgets, development priorities, marketing and launch planning.
• Take ownership of operational work. Coordinate resource planning, monitor project budgets and progress, and manage delivery administration, including purchase orders, invoicing and timesheets.
• Help work move forward across teams. Gather information, clarify responsibilities and resolve obstacles. Ensure decisions lead to action, working with colleagues to balance commitments, capacity and client expectations.
• Support leadership communications. Prepare clear briefings, updates and presentations that explain progress, recommendations and decisions needed. Keep colleagues informed about priorities and their part in delivering them.

Skills

Curiosity

Analytical thinking

Ownership

Clear communication

Prioritisation

Stakeholder management

Technology interest

Job description

Amsterdam · On site · Full time · Reporting to the CEO

Portera is an AI, data and cloud engineering company based in Amsterdam. We work with multinational enterprises including Danone, FrieslandCampina, Nouryon and AkzoNobel, helping them turn technology into business results.

We’re looking for a curious, commercially minded Chief of Staff to work closely with our CEO and colleagues across the company. You’ll contribute to business planning, support growth opportunities and help connect business priorities, technology delivery and commercial results.

This is an opportunity to learn how a technology business is built and run, with meaningful responsibility from the start. You’ll need to move comfortably between the bigger picture and the details that make things happen.

What you’ll do

• Support business planning and decisions. Work with the CEO to translate company priorities into clear plans. Analyse business information, assess options and recommend practical next steps.
• Help develop growth opportunities and partnerships. Research opportunities, prepare proposals and discussions, and coordinate the work needed to move them forward.
• Support product development. Help coordinate product initiatives across budgets, development priorities, marketing and launch planning.
• Take ownership of operational work. Coordinate resource planning, monitor project budgets and progress, and manage delivery administration, including purchase orders, invoicing and timesheets.
• Help work move forward across teams. Gather information, clarify responsibilities and resolve obstacles. Ensure decisions lead to action, working with colleagues to balance commitments, capacity and client expectations.
• Support leadership communications. Prepare clear briefings, updates and presentations that explain progress, recommendations and decisions needed. Keep colleagues informed about priorities and their part in delivering them.

You’ll represent the CEO on agreed matters and lead through collaboration and influence. Sound judgement, discretion and consistent follow-through will be central to your work.

What you’ll bring

• Curiosity, initiative and a strong appetite to learn.
• Analytical thinking and confidence working with numbers, budgets and business information.
• The ability to draw conclusions, suggest practical solutions and take ownership of the next steps.
• Clear written and verbal communication, with the ability to ask thoughtful questions and listen carefully.
• The organisation to manage several priorities and follow work through to completion.
• Confidence working with people at different levels, building trust and constructively challenging when needed.
• An interest in technology and how it creates value for businesses.

You may be early in your career. We value evidence of ownership, good judgement and the ability to learn. Experience in consulting, technology or professional services is helpful, but not essential.

Why join Portera?

You’ll gain experience across commercial, product and operational decisions, and take responsibility for initiatives that matter to the business.

We offer:

• Direct mentorship from the CEO, with regular feedback and opportunities to learn through involvement in business decisions.
• Learning and development support to build skills relevant to your role and professional growth.
• An NS Business Card covering commuting and business travel.

Your contribution will help us deliver excellent work, build lasting client relationships and create the conditions for teams to do their best work.