Senior sitecore developer – public transport & e-commerce - Freelance

Taux journalier (TJM): TJM HT max 581 € (hors éventuels frais de mission, à discuter avec le client)

Senior Sitecore Developer – Public Transport & E-commerce

Location: Belgium / Remote

Work arrangement: 100% Remote

Language: English (C1 minimum or native level)

Availability: On-demand 24/7 availability for production incidents

Mission

We are looking for an experienced Sitecore Developer to strengthen a web development team working on digital platforms in the public transport and e-commerce sectors.

The ideal candidate combines strong hands-on C#/.NET and Sitecore development expertise with proven experience in public transport and e-commerce environments.

You will design, develop and enhance high-performance web platforms, working closely with backend developers, designers and business stakeholders to deliver seamless, reliable and user-friendly digital experiences.

Key Responsibilities

• Lead hands-on development of complex web platforms using Sitecore and C#/.NET.

• Develop and maintain Sitecore-based web applications and integrations.

• Optimize platform performance, reliability and cross-browser compatibility.

• Integrate web platforms with backend systems to ensure consistent data exchange.

• Translate UI/UX designs into high-quality, responsive web interfaces.

• Contribute to Sitecore migrations, upgrades and version updates.

• Implement testing strategies and ensure application quality.

• Apply modern development practices, design patterns and coding standards.

• Collaborate with cross-functional teams and mentor junior developers.

• Participate in production support, including on-demand incident availability.

Required Experience & Technical Skills

• 5+ years of hands-on Sitecore development experience, supported by a portfolio of web platforms.

• 5+ years of hands-on C#/.NET development, with the last 3 years spent in a fully hands-on development role (not primarily managerial or architectural).

• 2+ years of hands-on experience with Sitecore 10 XP, including containers, analytics and marketing forms.

• Participation in at least 2 Sitecore migration and/or version upgrade projects.

• Proven experience in at least one public transport assignment.

• Proven experience in at least one e-commerce assignment.

• Strong knowledge of web performance optimization, application architecture and design patterns.

• Experience with Agile development methodologies.

Languages

• English: native speaker or minimum C1 level, written and spoken.

Additional Expectations

• Strong technical ownership and problem-solving skills.

• Excellent communication and collaboration abilities.

• Ability to guide and mentor other developers.

• Willingness to provide on-demand 24/7 availability for production incidents.