On Technical Architect & Principal & D365 F&O Engineer

On; City Of London; Hybrid; GBP 140,000 - 190,000; Full time

Job summary

On is seeking a senior leader to drive the technical development, architecture, and optimization of the Dynamics 365 F&O platform. The role focuses on delivering scalable solutions, robust integrations, and high-quality code across the global operations landscape.

Reporting to the Engineering Leadership, the candidate will mentor engineers, define technical standards, and stay ahead of the curve with emerging D365 F&O technologies, cloud platforms like Azure, and modern DevOps practices.

Qualifications

• 12+ years of experience in Microsoft Dynamics 365 F&O development and implementation.
• In-depth understanding of D365 F&O architecture, data models, security, APIs.

Responsibilities

• Define and champion a compelling technical vision for the D365 F&O platform.
• Lead technical design and architecture for D365 F&O, ensuring scalable and robust solutions.
• Oversee integrations with ecommerce, payment gateways, CRM, marketing automation, and logistics systems.
• Promote clean code, best practices, testing methodologies, and deployment processes.
• Mentor team members and drive continuous learning within the engineering group.

Skills

Dynamics 365 F&O

X++, C#

Performance tuning

Integration patterns

Technical leadership

Analytical thinking

Collaboration & communication

Azure

Tools

Azure

APIs

Event-driven architecture

Job description

In short

In the dynamic landscape of On, technology thrives much like a spirited runner: always moving, always improving. As an integral part of Engineering Leadership reporting to Florian Jensen, Hiring Manager, this role leads the technical development, architecture, and optimization of the D365 F&O platform. The position ensures seamless integrations and a robust, scalable foundation to supercharge the growth of On and support growing global operations.

Your Mission

• Technical Visionary: Define and champion a compelling technical vision for D365 F&O at On, inspiring and guiding the development team to deliver innovative, high-quality solutions.
• Code Craftsmanship: Promote a culture of clean, efficient, and maintainable code, setting high standards and leading constructive code reviews to uphold best practices.
• Performance Optimization: Continuously analyze and optimize the D365 F&O platform, identifying bottlenecks and implementing solutions to ensure optimal speed, scalability, and reliability.
• Technical Design & Architecture: Lead the technical design and architecture for Dynamics 365 F&O, balancing business requirements, industry standards, and technical feasibility.
• Integration Maestro: Design and oversee integrations between D365 F&O and critical systems. This is including e-commerce platforms, payment gateways, marketing automation tools, CRM systems, and logistics providers-leveraging event-driven architecture, event-driven integration patterns, and asynchronous data flows to ensure seamless and resilient data flow.
• Development Best Practices: Establish and support development standards, version control, testing methodologies, and deployment processes.
• Technical Problem Solving: Provide expert technical guidance to the development team, troubleshooting complex issues and resolving operational challenges.
• Mentorship & Development: Mentor team members, fostering a supportive environment dedicated to continuous learning and knowledge sharing.
• Stay Ahead of the Curve: Research and evaluate emerging technologies in the D365 F&O ecosystem to identify opportunities for platform enhancement.

Your Story

• Deep Technical Expertise: 12+ years of experience developing and implementing Microsoft Dynamics 365 F&O solutions, with a focus on technical design, development, and performance optimization.
• D365 F&O Mastery: In-depth understanding of Dynamics 365 F&O architecture, including data models, security models, development frameworks, and APIs.
• Programming Proficiency: Strong proficiency in X++, C#, and related languages essential for D365 F&O development.
• Performance Tuning: Proven ability to optimize application performance through database tuning, code optimization, and infrastructure configuration.
• Integration Expertise: Extensive experience connecting D365 F&O with external systems using modern integration patterns and technologies.
• Technical Leadership: Demonstrated success in guiding, mentoring, and empowering engineering teams to uphold quality standards.
• Analytical Thinking: Strong problem-solving skills to navigate and resolve complex technical challenges.
• Collaboration & Communication: Excellent interpersonal skills with a proven track record of collaborating effectively with developers, business analysts, and cross-functional stakeholders.
• Domain Knowledge & Continuous Learning: Dedication to staying current with D365 F&O updates, with beneficial familiarity in core finance processes (e.g., order-to-cash, procure-to-pay), cloud platforms (e.g., Azure), Agile/DevOps practices, or relevant Microsoft certifications.

Your Team

We drive transformation. The Digital Engineering team works across the entire organization to create innovative experiences, from e-commerce platforms to internal tools. Our mission is to shape On’s digital future, enhancing customer interactions and supporting business growth with creative and forward-thinking solutions.

This is a hybrid role in London working 2 days a week in our office in Spitalfields near Liverpool Street on the Elizabeth Line. We can support relocation for this role.