Recommended expert

Samantha Oosterling-Maas

Mendix developer

Samantha Oosterling-Maas
Almere, Netherlands

Experience

Jan 2023 - Dec 2025
3 years

Mendix developer

FMO Bank

  • Developed the Capturing Financial Covenant (CFC) application in Mendix, enabling covenant registration, actuals tracking, and automated breach detection.
  • Automated task flows using Camunda for streamlined covenant management.
  • Set up Early Warning Signals integrated with REACT for proactive breach handling.
  • Supported complex financial domains including Guarantee Products, KYC/KYS, Treasury, Risk Management, Payment Processing, and Regulatory Reporting.
  • Handled API development and integrations, ensuring quality through Azure DevOps pipelines and story reviews.
  • Applied TMAP-based principles in functional and regression testing, including edge-case analysis.
  • Monitored application health and logging across components (API Management, Camunda, CFC) using Grafana dashboards in collaboration with the DevOps team.
  • Followed an Agile/DevOps approach with strong focus on performance, security, and compliance.
Jan 2022 - Dec 2023
2 years

Mendix developer

Goudse Verzekeringen

  • Further developed the Beheer Mijn Personeel environment, enhancing functionality and user experience.
  • Developed the Premie Vaststelling application to streamline premium calculation processes, ensuring accuracy and compliance.
  • Upgraded six existing Mendix applications to Mendix 9, incorporating the Living Style Guide with the MAUI framework for a consistent and modern user interface.
  • Monitored application behavior and troubleshot issues effectively using Grafana dashboards across several Mendix environments.
  • Contributed to improved application performance, better user adoption, and a unified, scalable design system across the organization’s Mendix ecosystem.
Jan 2019 - Dec 2023
5 years

Mendix developer

Alliander

  • Contributed to the development of three Mendix portals integrated with SAP for contractor management and internal operations.
  • Built a Contractor Portal for external contractors to view cases and upload revision documents within deadlines.
  • Developed an Employee Portal for internal teams to monitor contractor cases, provide feedback, and maintain oversight.
  • Implemented an intermediate Case Management Data Layer to ensure seamless data synchronization between portals and SAP.
  • Developed a dynamic quotation tool with a guided wizard interface for faster processing and improved data accuracy.
  • Aligned solutions with Alliander’s strategy of achieving twice the speed and double the customer satisfaction.
Jan 2018 - Dec 2018
1 year

Mendix developer

ANWB

  • Developed a Mendix application to ensure continuity of the caravankoopwijzer.nl platform after external supplier contract expiration.
  • Collected and refined requirements, ensuring the new application met internal stakeholders’ and end-users’ needs.
  • Developed and tested functionalities using SCRUM/Agile methodology with a focus on reliability and user experience.
  • Designed and implemented APIs to securely migrate existing data to the new Mendix application, preserving valuable information.
  • Coached and trained two ANWB employees in Mendix development to maintain and extend the application.
  • Conducted regular demos for end-users, gathering feedback for continuous improvement.
  • Empowered the team with in-house Mendix expertise while ensuring data continuity.
Jan 2018 - Dec 2018
1 year

Mendix developer

Radiuz

  • Redeveloped the Radiuz mobility platform, providing employees with a single mobility card for fuel and public transport.
  • Collected and refined requirements with stakeholders to meet user needs and business objectives.
  • Prioritized user stories and defined clear acceptance criteria to align development goals with expectations.
  • Created detailed process flows to map application functionality and user interactions.
  • Developed and rigorously tested the application in Mendix, ensuring security, user-friendliness, and scalability.
  • Modernized the existing platform to improve user experience and operational efficiency for employees and administrators.
Jan 2015 - Dec 2015
1 year

Ruby on Rails developer

Yarden

  • Developed and tested functionalities for a native funeral wishes application using Backbone and Ruby on Rails.
  • Enabled customers to record and manage their funeral wishes, providing clarity and peace of mind for next of kin.
  • Rapidly acquired knowledge of the existing application to ensure smooth development and support.
  • Followed SCRUM/Agile methodology for iterative development and delivery.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Utilities (5 years), Banking and Finance (3 years), Insurance (2 years), Automotive (1 year), Tourism (1 year), and Information Technology (1 year).

Utilities
Banking and Finance
Insurance
Automotive
Tourism
Information Technology

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (9 years), Operations (5 years), Finance (3 years), Product Development (1 year), and Quality Assurance (1 year).

Information Technology
Operations
Finance
Product Development
Quality Assurance

Summary

Certified Mendix Expert Developer with almost a decade of experience designing, developing, and optimizing scalable Mendix applications across diverse industries, including finance, insurance, energy, and logistics. Demonstrated expertise in low-code development, secure API design, workflow automation with Camunda, and cloud integration. Proven ability to collaborate effectively with cross-functional teams, ensuring the delivery of user-centric, compliant, and high-performance solutions. Known as highly skilled in Agile SCRUM methodologies, REST API development, and secure data management.

Skills

  • Mendix
  • Rest Api
  • Camunda
  • Front End

Languages

Dutch
Native
English
Advanced

Certifications & licenses

Mendix Advanced Certificate

Mendix

Mendix Expert Certificate

Mendix

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Samantha based?

Samantha is based in Almere, Netherlands and prefers 100% remote projects.

What languages does Samantha speak?

Samantha speaks the following languages: Dutch (Native), English (Advanced).

How many years of experience does Samantha have?

Samantha has at least 9 years of experience. During this time, Samantha has worked in at least 2 different roles and for 6 different companies. The average length of individual experience is 2 years and 6 months. Note that Samantha may not have shared all experience and actually has more experience.

What roles would Samantha be best suited for?

Based on recent experience, Samantha would be well-suited for roles such as: Mendix developer, Ruby on Rails developer.

What is Samantha's latest experience?

Samantha's most recent position is Mendix developer at FMO Bank.

What companies has Samantha worked for in recent years?

In recent years, Samantha has worked for FMO Bank, Goudse Verzekeringen, and Alliander.

Which industries is Samantha most experienced in?

Samantha is most experienced in industries like Utility Services, Banking and Finance, and Insurance. Samantha also has some experience in Automotive, Tourism and Hospitality, and Information Technology (IT).

Which business areas is Samantha most experienced in?

Samantha is most experienced in business areas like Information Technology (IT), Operations, and Finance. Samantha also has some experience in Product Development and Quality Assurance (QA).

Which industries has Samantha worked in recently?

Samantha has recently worked in industries like Utility Services, Banking and Finance, and Insurance.

Which business areas has Samantha worked in recently?

Samantha has recently worked in business areas like Information Technology (IT), Operations, and Finance.

Does Samantha have any certificates?

Samantha has 2 certificates. These include: Mendix Advanced Certificate and Mendix Expert Certificate.

What is the availability of Samantha?

Samantha is immediately available full-time for suitable projects.

What is the rate of Samantha?

Samantha's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Samantha?

To hire Samantha, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1200
900
600
300
Market avg: 990-1150 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.