Senior Integration Developer

About us

LLInformatics is a forward-thinking IT consulting firm, trusted by clients across Europe and North America. We specialize in delivering complex projects on time, with exceptional quality, and always meeting the highest compliance standards. Our remote-first team of 100+ experts is passionate about building cutting-edge digital products that drive real results. With a focus on data-driven decisions, measurable outcomes, and a strategic mindset, we’re raising the bar in our industry—backed by a strong, collaborative work culture that fuels our success.

• Contract Type: B2B

• Location: Remote or in our Warsaw office
  

Your tasks and responsibilities:

• Lead the migration from on-prem Microsoft Dynamics AX with integrated file servers to Cloud ERP Dynamics 365 Finance & Operations (D365 F&O).

• Design, build, and maintain connectors, workflow automations, and data pipelines to ensure smooth integration and interoperability between the old and new systems.

• Ensure data integrity, consistency, and reliability during ERP migration processes.

• Utilize Azure Logic Apps and Azure Service Bus for workflow orchestration and system integration.

• Provide technical guidance and best practices for ERP integration patterns and API usage.
  

Requirements:

• 5+ years of experience in system integration, ERP, or backend development.

• Strong understanding of Microsoft ERP integration patterns, especially Dynamics AX → D365 F&O migrations.

• Proven track record with data migration, connectors, and workflow integration.

• Familiarity with Azure Logic Apps and Azure Service Bus for workflow orchestration.

• Solid SQL skills and experience with data modeling and transformations.

• Experience with API design, webhooks, and workflow orchestration tools.

• Strong problem-solving skills, attention to detail, and ability to work independently.

• Comfortable working in Agile environments (Scrum, Kanban).

• Fluent in English and Polish (B2+ level).
  

Why join us? 

• Flexible Working Hours – We focus on results! Manage your time, keep your team informed about your availability, and attend key meetings.

• Work from Anywhere – Choose your ideal setup! Work 100% remotely within the EU, go hybrid, or enjoy our Warsaw office, fully equipped for productivity.

• Comprehensive Onboarding – From day one, we ensure you feel comfortable and supported, so you can quickly become part of the team.

• Flat Structure – We value initiative and open communication. Every voice matters here!

• Positive Company Culture & Team Spirit – We create an environment where everyone feels appreciated and comfortable.

• Modern Work Methods – We use cutting-edge project management techniques inspired by the IT world.

• Transparent Communication – Regular 360° feedback sessions and mentor support to help you grow.

• Top-Notch Equipment – Get a MacBook for your work. If you choose to work from our Warsaw office, you'll also have access to a 34” (16:9) widescreen monitor and an ergonomic standing desk.

• Weekly English Lessons – Optional classes with a native speaker to help you improve your skills.