Available to hire
Hi, I’m Nicolai
a freelance backend developer with a strong focus on .NET, Node, Python, and clean, scalable architecture.
I help companies build robust APIs, streamline integrations, and deliver maintainable code that lasts. Over the years, I’ve worked on enterprise systems, public sector tools, and cloud-native applications — always with attention to performance, security, and simplicity.
I’m experienced with:
.NET Core, C#, Blazor, Entity Framework
Python, Flask, FastAPI
SQL Server, MongoDB, RabbitMQ
Azure, DevOps, Docker
I’m easy to work with, solution-driven, and take pride in writing code that teams actually like to work with. Available for freelance projects (B2B), both short- and long-term. Let’s build something great!
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Language
Dutch
Fluent
English
Advanced
Work Experience
DevOps Engineer at Sofico
January 1, 2025 - April 30, 2025Researched and experimented with modern technologies to enhance the Microservices Platform of the Miles Enterprise Suite. Set up and managed Kubernetes Clusters using Infrastructure as Code tools such as Terraform and Ansible. Automated deployments through the GitOps approach, utilizing tools like FluxCD, Helm, and Kustomize. Maintained and optimized DevOps pipelines to ensure efficient and reliable software delivery. Managed containerized environments using Docker and Kubernetes. Collaborated with team members, IT, and security teams to align on project goals and ensure effective communication. Monitored and maintained systems using tools like Prometheus, Grafana, FluentBit, and Loki. Worked with database systems such as PostgreSQL and OracleDB to support application functionality. Ensured adaptability to evolving technologies by continuously learning and integrating new tools and practices.
Backend Developer at Ballistix
October 1, 2024 - December 31, 2024Developed and maintained RESTful APIs using Node.js and Next.js to support application functionality. Designed and implemented backend logic to handle business requirements and ensure scalable performance. Worked with PostgreSQL database to design schemas, optimize queries, and manage data storage and retrieval. Wrote unit tests to ensure code quality, reliability, and maintainability of backend services. Set up and maintained CI/CD pipelines to automate testing, building, and deployment processes. Utilized Docker for containerized development and deployment to ensure consistent environments. Operated within Linux-based systems for development and deployment tasks. Collaborated with team members to integrate backend APIs with frontend components and other services. Debugged and resolved issues in backend systems to ensure robust and efficient application performance.
.NET & VB Developer at Dynamic Software
October 1, 2023 - November 30, 2023Analyzed and documented existing VBA code to understand functionality and requirements for migration. Ported VBA code to .NET framework, ensuring equivalent functionality and improved performance. Refactored legacy Visual Basic code to modern .NET standards, enhancing maintainability and scalability. Developed and tested .NET applications to replace legacy VB systems, ensuring compatibility and reliability. Debugged and resolved issues during the migration process to ensure seamless transition of functionality. Collaborated with stakeholders to validate migrated applications met business needs and expectations. Documented the migration process and new .NET codebase for future reference and maintenance.
Power Platform Developer at Profility
December 1, 2022 - October 31, 2023Developed low-code business applications and automation solutions using Microsoft Power Platform. Configured and managed permissions to ensure secure access control within Power Platform environments. Designed and implemented data models and storage solutions using Dataverse to support application requirements. Created custom plugins to extend Power Platform functionality and integrate with external systems. Built interactive dashboards to visualize data and provide actionable insights for business users. Tested and debugged Power Platform solutions to ensure reliability and performance. Collaborated with stakeholders to gather requirements and deliver tailored automation and application solutions. Documented developed solutions and configurations for maintenance and user training purposes.
Backend Developer at Nowjobs
March 1, 2022 - November 30, 2022Developed and maintained RESTful APIs using Node.js to support application functionality. Integrated backend APIs with Angular-based frontend components for seamless user experiences. Designed and optimized MySQL database schemas and queries, utilizing Object-Relational Mapping (ORM) tools for efficient data management. Utilized Docker for containerized development and deployment to ensure consistent environments. Wrote and maintained unit tests to ensure code quality and reliability of backend services. Used Git for version control, collaborating with team members and managing code repositories. Debugged and resolved issues in backend systems to ensure robust and efficient performance. Collaborated with stakeholders to gather requirements and deliver scalable backend solutions.
Fullstack Developer at Trilec
August 1, 2019 - March 31, 2022Developed fullstack solutions for Product Information Management system, implementing backend logic using .NET and Entity Framework. Built and maintained responsive frontend interfaces for the system using Angular. Managed MSSQL database, designing schemas and optimizing queries to support data requirements. Implemented scheduled processes to import XML, JSON, and Excel data into the MSSQL database. Designed and developed a Python-based warehouse application, integrating Redis for data caching and scheduled task automation. Containerized the Python warehouse application using Docker for deployment and scalability. Configured Mobile Device Management using Intune for Android, iPhone, and Windows laptops to ensure secure device management. Migrated legacy Windows CE scanners to Android, developing a custom scanning application in Kotlin. Provided general IT support and created monitoring dashboards with Grafana to track system health.
DevOps Engineer at Sofico
January 1, 2025 - April 30, 2025Researched and experimented with modern technologies to enhance the Microservices Platform of the Miles Enterprise Suite. Set up and managed Kubernetes Clusters using Infrastructure as Code tools such as Terraform and Ansible. Automated deployments through the GitOps approach with FluxCD, Helm, and Kustomize. Maintained and optimized DevOps pipelines to ensure efficient and reliable software delivery. Managed containerized environments using Docker and Kubernetes. Collaborated with team members, IT, and security teams to align on project goals. Monitored and maintained systems using Prometheus, Grafana, FluentBit, and Loki. Worked with PostgreSQL and OracleDB to support application functionality, while adapting to evolving technologies by continuous learning.
Backend Developer at Ballistix
October 1, 2024 - December 31, 2024Developed and maintained RESTful APIs using Node.js and Next.js for application functionality. Designed and implemented backend logic supporting business requirements with scalable performance. Worked with PostgreSQL to design schemas and optimize queries. Wrote unit tests for code quality and maintainability. Set up and maintained CI/CD pipelines and used Docker for containerized development. Worked within Linux systems and collaborated to integrate backend APIs with frontend components. Debugged and resolved backend issues to ensure application robustness and efficiency.
.NET & VB Developer at Dynamic Software
October 1, 2023 - November 30, 2023Analyzed and documented existing VBA code for migration. Ported VBA to .NET framework ensuring equivalent functionality and improved performance. Refactored legacy Visual Basic code to modern .NET standards to enhance maintainability and scalability. Developed and tested .NET applications replacing legacy VB systems ensuring compatibility and reliability. Debugged and resolved issues during migration, collaborating with stakeholders to validate migrated applications and documented processes for future reference.
Power Platform Developer at Profility
December 1, 2022 - October 31, 2023Developed low-code business applications and automation solutions using Microsoft Power Platform. Configured and managed permissions for secure access. Designed data models and storage with Dataverse. Created custom plugins for extended functionality and integration. Built interactive dashboards for actionable insights. Tested and debugged solutions for reliability and performance. Collaborated with stakeholders to gather requirements and deliver tailored solutions. Documented developments for maintenance and user training.
Backend Developer at Nowjobs
March 1, 2022 - November 30, 2022Developed and maintained RESTful APIs using Node.js. Integrated backend APIs with Angular frontend components. Designed and optimized MySQL schemas and queries using ORM tools. Utilized Docker for containerized development and deployment. Wrote and maintained unit tests. Used Git for version control collaborating with teammates. Debugged backend systems for robust performance and collaborated with stakeholders to deliver scalable backend solutions.
Fullstack Developer at Trilec
August 1, 2019 - March 31, 2022Developed fullstack Product Information Management (PIM) solutions using .NET backend and Angular frontend. Managed MSSQL database and optimized queries. Implemented scheduled import processes for XML, JSON, and Excel data. Developed Python-based warehouse app with Redis caching and scheduled workers. Containerized app with Docker for scalability. Configured Mobile Device Management via Intune for secure device management. Migrated legacy Windows CE scanners to Android with custom Kotlin app. Provided IT support and created Grafana monitoring dashboards.
DevOps Engineer at Sofico
January 1, 2025 - April 30, 2025Researched and experimented with modern technologies to enhance the Microservices Platform of the Miles Enterprise Suite. Set up and managed Kubernetes Clusters using Infrastructure as Code tools such as Terraform and Ansible. Automated deployments through the GitOps approach, utilizing tools like FluxCD, Helm, and Kustomize. Maintained and optimized DevOps pipelines to ensure efficient and reliable software delivery. Managed containerized environments using Docker and Kubernetes. Collaborated with team members, IT, and security teams to align on project goals and ensure effective communication. Monitored and maintained systems using tools like Prometheus, Grafana, FluentBit, and Loki. Worked with database systems such as PostgreSQL and OracleDB to support application functionality. Ensured adaptability to evolving technologies by continuously learning and integrating new tools and practices.
Backend Developer at Ballistix
October 1, 2024 - December 31, 2024Developed and maintained RESTful APIs using Node.js and Next.js to support application functionality. Designed and implemented backend logic to handle business requirements and ensure scalable performance. Worked with PostgreSQL database to design schemas, optimize queries, and manage data storage and retrieval. Wrote unit tests to ensure code quality, reliability, and maintainability of backend services. Set up and maintained CI/CD pipelines to automate testing, building, and deployment processes. Utilized Docker for containerized development and deployment to ensure consistent environments. Operated within Linux-based systems for development and deployment tasks. Collaborated with team members to integrate backend APIs with frontend components and other services. Debugged and resolved issues in backend systems to ensure robust and efficient application performance.
.NET & VB Developer at Dynamic Software
October 1, 2023 - November 30, 2023Analyzed and documented existing VBA code to understand functionality and requirements for migration. Ported VBA code to .NET framework, ensuring equivalent functionality and improved performance. Refactored legacy Visual Basic code to modern .NET standards, enhancing maintainability and scalability. Developed and tested .NET applications to replace legacy VB systems, ensuring compatibility and reliability. Debugged and resolved issues during the migration process to ensure seamless transition of functionality. Collaborated with stakeholders to validate migrated applications met business needs and expectations. Documented the migration process and new .NET codebase for future reference and maintenance.
Power Platform Developer at Profility
December 1, 2022 - October 31, 2023Developed low-code business applications and automation solutions using Microsoft Power Platform. Configured and managed permissions to ensure secure access control within Power Platform environments. Designed and implemented data models and storage solutions using Dataverse to support application requirements. Created custom plugins to extend Power Platform functionality and integrate with external systems. Built interactive dashboards to visualize data and provide actionable insights for business users. Tested and debugged Power Platform solutions to ensure reliability and performance. Collaborated with stakeholders to gather requirements and deliver tailored automation and application solutions. Documented developed solutions and configurations for maintenance and user training purposes.
Backend Developer at Nowjobs
March 1, 2022 - November 30, 2022Developed and maintained RESTful APIs using Node.js to support application functionality. Integrated backend APIs with Angular-based frontend components for seamless user experiences. Designed and optimized MySQL database schemas and queries, utilizing Object-Relational Mapping (ORM) tools for efficient data management. Utilized Docker for containerized development and deployment to ensure consistent environments. Wrote and maintained unit tests to ensure code quality and reliability of backend services. Used Git for version control, collaborating with team members and managing code repositories. Debugged and resolved issues in backend systems to ensure robust and efficient performance. Collaborated with stakeholders to gather requirements and deliver scalable backend solutions.
Fullstack Developer at Trilec
August 1, 2019 - March 31, 2022Developed fullstack solutions for Product Information Management (PIM) system, implementing backend logic using .NET and Entity Framework. Built and maintained responsive frontend interfaces for the PIM system using Angular. Managed MSSQL database, designing schemas and optimizing queries to support PIM data requirements. Implemented scheduled processes to read and import XML, JSON, and Excel data into the MSSQL database. Designed and developed a Python-based warehouse application, integrating Redis for data caching and utilizing scheduled workers for task automation. Containerized the Python warehouse application using Docker for deployment and scalability. Configured Mobile Device Management (MDM) using Intune for Android, iPhone, and Windows laptops to ensure secure device management. Migrated legacy Windows CE scanners to Android, developing a custom scanning application in Kotlin. Provided general IT support, troubleshooting issues across systems and applications. Created and main
Education
Bachelor in Computer Engineering at Hogent
January 1, 2015 - December 31, 2017Bachelor at Hogent
January 1, 2015 - December 31, 2017Bachelor at Hogent
January 1, 2015 - December 31, 2017Qualifications
Microsoft Power Platform Developer Associate (PL-400)
January 11, 2030 - June 18, 2025PL-400
January 11, 2030 - June 18, 2025Microsoft Power Platform Developer Associate (PL-400)
January 1, 2015 - December 31, 2017PL-400
January 1, 2015 - December 31, 2017Industry Experience
Software & Internet, Computers & Electronics, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
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