Mendix Senior Scrum Master

Project overview

PLEASE NOTE: This assignment is not available for direct ZZP (self-employed) engagement. Engagement is exclusively possible through a secondment agency/supplier or via a payroll/employment contract. The work will be performed under the leadership and supervision of a public executive organization, therefore independent engagement is not permitted. Offering suppliers must be able to be included in the chain. For this, WAADI registration and a G-account are required.

Candidates who wish to participate as self-employed entrepreneurs can only be proposed when they are engaged through an authorized secondment agency or employment contract.

Hybrid/Remote: In the context of 'Anders werken' (working differently), work is primarily done from home. For meetings and digital encounters, MS Teams is used. When physical presence is required, this will primarily take place at the aforementioned location.

Possible intake: Week 47 on location or via MS Teams

Are you an experienced Scrum Master who can maintain direction in complex administrative environments? Can you create calm, connect interests, and successfully guide teams when projects are under pressure?

Then we are looking for you.

Your role

You operate in an environment with multiple clients, diverse interests, and a complex administrative context. You are able to connect opposing interests, actively manage expectations, and, when necessary, discuss clear choices. You create calm, overview, and predictability, especially when projects are under pressure. Scrum and Agile seem simple, but their application within an organization with a traditional waterfall background brings challenging dynamics. You are the key to success in this transition.

As an experienced Scrum Master, you will guide multidisciplinary teams and help them optimally utilize the Scrum framework to achieve their goals. You have a sharp insight into planning, interests, and risks, and know how to facilitate teams in removing obstacles. You monitor and strengthen team dynamics, assist Product Owners in effectively managing and prioritizing the backlog, and ensure a streamlined refinement process with developers.

Within the RAD Software Development team, you are more than just a Scrum Master. You have a coordinating role, in which you:

You will work closely with various stakeholders within the organization, including business experts, other Scrum Masters, DevOps teams, the Release Train Engineer, the Product Manager, the Solution Architect, the Product Owners Internal Services, and the Digital Quality Team (DQT). Together, you will ensure that agile working within the organization is not just a method, but a mindset.

• Coordinate the roadmap, backlog, and capacity planning together with the Product Owners.
• Monitor project budgets and support team members with time tracking.
• Actively contribute to the agile transition and help elevate the department to a higher level.

Requirements

You are an experienced Scrum Master and a true team player, with collegiality and integrity at the core. You possess strong stakeholder management skills and know how to effectively switch between different clients, diverse interests, and changing priorities within a political-administrative environment. When capacity, planning, and interests clash, you demonstrate decisiveness by setting clear priorities and discussing difficult choices in a connecting manner. Furthermore, you use your coaching leadership to guide teams towards higher agile maturity.

You stimulate ownership, collaboration, and continuous improvement. With your organizational sensitivity, you maintain an overview under pressure and know how to bring calm and structure to complex situations. You are solution-oriented, think analytically, and act proactively at bottlenecks, working in a customer- and result-oriented manner. You also contribute to ensuring continuity within teams by stimulating knowledge sharing and transparency and limiting dependence on individual employees.

Finally, you have strong communication skills and know how to communicate clearly both verbally and in writing in Dutch and English.

Wishes

The Rotterdam department has the largest ICT department in the municipal sector. Hundreds of colleagues are daily involved in managing, securing, and (further) developing all ICT services, both within the organization and in the city. We work with the most advanced technologies to make Rotterdam better and more innovative. Since January 2018, we have been working with Rapid Application Development (RAD) on the Mendix platform, where we model processes with the business units (clusters) and create applications in multiple BizzDevOps teams, supported by a central RAD Expert team.

As a Senior Scrum Master, you will work within the City Management cluster of the municipality. The role is part of the Customer Applications department, the Software Development RAD team of the IIFO directorate (Information, Innovation, Facilities, and Research). Your manager is the Team Leader Software Development RAD, and you will have daily coordination with the RAD Coordinator.

• You have at least a completed HBO (higher professional education) degree in Computer Science, ICT, Business Administration, Technical Business Administration, Public Administration, Government Management, or comparable;
• You possess a Professional Scrum Master I (PSM I) certificate;
• You possess a Professional Scrum Product Owner I (PSPO I) certificate;
• You have at least 2 years of work experience coaching and guiding Scrum software development teams, gained in the last 8 years;
• You have at least 1 year of work experience with capacity planning and aligning capacity with short- and long-term demand, gained in the last 3 years.
• You have work experience at a municipality with at least 160,000 inhabitants;
• You have at least 3 years of work experience in setting up and optimizing processes within IT or government organizations, gained in the last 8 years;
• You have at least 2 years of work experience with stakeholder management towards administrative clients, (line) management, and external parties such as chain partners or suppliers, gained in the last 8 years;
• You have at least 1 year of work experience in which you have actively contributed to the transition of an organization towards an agile (SAFe) way of working, gained in the last 8 years;
• You have at least 1 year of work experience with preparing financial reports, controlling financial commitments, and time registration, gained in the last 8 years;
• You possess the following certificates:
• Leading SAFe certificate;
• Lean Six Sigma, Yellow Belt or higher.

Project details

• Start: 2026-11-05T23:00:00
• Location: Rotterdam Zuid-Holland, NL
• Languages: Dutch