Senior Business Central Developer

Proxify; Polska; Remote; PLN 180,000 - 300,000; Full time

Benefits offered by this job

On-time monthly payments

Flexible withdrawal options

24 flex days off per year

Job summary

Proxify is seeking a Senior Business Central Developer to lead the design, development, and customization of core Microsoft Dynamics 365 Business Central solutions for a remote, international client base.

You will architect event-driven AL extensions, integrate third-party systems via web services, and optimize multi-tenant cloud deployments while maintaining Microsoft AppSource standards.

Qualifications

• 5+ years of Dynamics 365 Business Central (and NAV) development.
• Expert AL language, extensions, and event subscribers.
• Experience connecting BC with external systems via REST/OData/JSON/OAuth2.
• Automated testing with AL Test Framework and mocks.

Responsibilities

• Design, build, and maintain scalable BC extensions in AL.
• Architect secure web service integrations between BC and external apps.
• Analyze logs and telemetry to resolve locking and slow queries.
• Establish automated build, test, and release pipelines with GitHub Actions.

Skills

AL language

Dynamics 365 BC

RESTful APIs

GitHub Actions

SQL Server

Unit tests

Tools

AL Go for GitHub

Azure DevOps

Job description

Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction.

Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.

Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.

The Role:

We are looking for a Senior Business Central Developer on behalf of our client to lead the technical design, development, and customization of core Microsoft Dynamics 365 Business Central solutions. In this role, you will take operational ownership of complex ERP extensions—architecting robust AL codebases, integrating third-party systems via web services, and optimizing database performance across multi-tenant cloud environments.

You will treat ERP customization as a modern, disciplined software engineering practice. Rather than building intrusive base-code modifications, you will design clean, event-driven AL extensions using Visual Studio Code, establish automated release pipelines with AL Go and GitHub Actions, and ensure all features comply with Microsoft AppSource certification standards.

What we are looking for:

• 5+ years of dedicated software development experience with Dynamics 365 Business Central (and legacy Dynamics NAV), featuring expert-level proficiency in AL language, custom page/report extensions, codeunits, and event subscribers.
• Strong functional and technical command of standard Business Central modules, including Finance (GL, AP, AR), Supply Chain, Inventory, Purchasing, and Sales.
• Extensive experience connecting Business Central with external systems, CRMs, and e-commerce platforms using RESTful web services, OData, JSON, and OAuth2 authentication.
• Daily practice authoring automated unit and integration tests using the AL Test Framework, utilizing test isolation and mocks to ensure upgrade stability.
• Proven experience maintaining source code, versioning, and automated build pipelines using GitHub Actions, AL Go for GitHub, or Azure DevOps.
• Deep understanding of SQL Server fundamentals, Business Central telemetry, index tuning, and performance profiling to eliminate lockups and slow-running queries.
• Time zone: CET (+/- 3 hours). We are unable to consider applications from candidates in other time zones.

Nice-to-Have & Plus Skills

• Practical experience navigating Microsoft AppSource validation workflows and technical compliance checks.
• Familiarity with the broader Microsoft Power Platform (Power Apps, Power Automate, Power BI) and Dataverse synchronization.
• Background in migrating legacy C/AL codebases (Dynamics NAV) to modern AL extensions.

Responsibilities:

• Design, build, and maintain scalable Business Central extensions in AL using event-driven architectures to customize ERP business logic cleanly.
• Architect secure web service integrations between Business Central and external applications (ERPs, CRMs, banking networks, e-commerce storefronts).
• Analyze system logs and telemetry using Business Central performance profilers and Application Insights to resolve locking, slow requests, and resource bottlenecks.
• Establish and manage automated build, test, and release workflows using GitHub Actions and AL Go across development, staging, and production environments.
• Enforce strict coding standards, conduct peer code reviews, and ensure codebases strictly adhere to Microsoft's technical guidelines for cloud upgrades and AppSource publication.

What we offer:

Get paid, not played

No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.

Predictable project hours

Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.

Flex days, so you can recharge

Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.

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One seamless process, multiple opportunities

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Compensation

Enjoy the same pay, every month with positions landed through Proxify.