D365 F&O Developer (Part-time)

About the Position

On behalf of our Client, Mobilunity is looking for a D365 F&O Developer (Part-time).

Our Client operates a growing eCommerce business built on Microsoft Dynamics 365 Finance & Operations. As the number of ongoing projects continues to increase, they are looking for an experienced D365 F&O Developer to strengthen their internal engineering team and independently drive key development initiatives. This is a long-term part-time opportunity (20 hours/week) with the possibility of transitioning to full-time in the future, depending on business needs.

Responsibilities

D365 F&O Development

• Design, develop, and maintain solutions using Microsoft Dynamics 365 Finance & Operations (X++).
• Deliver new features and enhancements across the D365 platform.
• Work independently on assigned development tasks with minimal supervision.
• Troubleshoot and resolve technical issues across ERP integrations and business workflows.
• Deliver clean, maintainable, and scalable code following best engineering practices.

Integration Development

• Support and extend EDI/XML integrations between D365 and third-party partners.
• Develop and enhance XML-based import/export processes.
• Participate in migrating existing middleware functionality into native D365 endpoints.
• Collaborate on system integrations between D365 and external business applications.
• Ensure reliable and efficient data synchronization across platforms.

Architecture & System Design

• Contribute to the modernization of existing system architecture.
• Help replace legacy middleware with native D365 integration endpoints.
• Participate in technical design discussions and propose scalable implementation approaches.
• Balance performance, maintainability, and business requirements when delivering solutions.

Code Quality & Collaboration

• Follow development standards and best practices.
• Participate in code reviews and technical discussions.
• Work closely with the client’s internal D365 developers throughout the development lifecycle.
• Collaborate effectively with distributed teams during US business hours.

Requirements

• Senior-level commercial experience with Microsoft Dynamics 365 Finance & Operations (X++).
• Solid commercial experience with C#.
• Experience working with EDI/XML integrations, or the ability to quickly ramp up in this area.
• Strong understanding of ERP integrations and business processes.
• Ability to work independently and take ownership of development tasks.
• Availability to collaborate during US business hours (GMT-5).
• Good spoken and written English.

Nice to Have

• Experience building or consuming D365 endpoints and APIs.
• Experience migrating legacy integrations or middleware solutions.
• Familiarity with SQL Server and relational databases.
• Experience working with Docker-based applications.
• Understanding of eCommerce or retail business processes.
• Experience integrating Microsoft Dynamics 365 with third-party platforms.

We Offer

• The friendliest community of like-minded IT-people.
• Open knowledge-sharing environment with exclusive access to experienced colleagues across a wide range of modern technologies.
• Mobilunity Medical Insurance program designed to support our teams’ needs.
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note.
• Perfect office location in the city center (900 m from Lukyanivska metro station) or fully remote work-you can choose the format that suits you best.
• No open-space setup-separate rooms for every team’s comfort and multiple lounge and gaming zones.
• English classes in both individual and group formats with elements of gamification.
• Never-ending fun: sports events, tournaments, music band, and multiple affinity groups.

About the Company

Mobilunity is a company that values its employees and provides a supportive and engaging work environment. We are committed to professional growth and offer various opportunities for learning and development.

Apply for This Position

We will contact you as soon as possible.