ColdFusion Developer

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This is a remote position.

We are looking for Senior ColdFusion Developers to support a critical 12-month engagement for a large, high-traffic marketplace platform in the DACH region. The platform is built on ColdFusion/Lucee and hosted on AWS, and is planned to migrate to a modern technology stack.

The role will focus on maintaining and stabilizing the existing platform, resolving production issues, supporting AWS infrastructure, and delivering business-critical integrations during the migration period. No further feature development of the legacy platform is planned beyond essential, critical work.

Your Duties

• Maintain, troubleshoot, and stabilize the existing ColdFusion/Lucee platform.

• Handle approximately 8–12 support tickets per week, including bug fixes and maintenance tasks.

• Investigate and resolve support escalations affecting sellers and buyers.

• Maintain and monitor AWS infrastructure.

• Handle approximately 1–2 AWS infrastructure tasks per week.

• Support business-critical development projects and overdue integrations.

• Develop and maintain integrations with partners, ERP systems, and external APIs.

• Work with integrations such as JTL, eBay, Google Merchant Center, and other marketplace or business-critical systems.

• Diagnose and resolve issues affecting platform availability, payments, and critical integrations.

• Manage multiple workstreams and priorities independently.

• Respond to critical P1 production incidents, including platform outages, payment failures, and integration disruptions.

• Provide an initial response to P1 incidents within 30 minutes and work toward resolution within 2 hours.

• Produce and maintain codebase and system documentation as formal project deliverables.

• Support the platform throughout its transition to a modern technology stack.

Requirements

• 5+ years of hands-on experience with ColdFusion/Lucee in production environments.

• Strong experience maintaining and supporting legacy ColdFusion applications.

• Experience working with marketplace platforms or high-traffic e-commerce systems.

• Expert-level MySQL knowledge, including complex schemas and database structures.

• Proven AWS infrastructure knowledge and practical DevOps experience.

• Experience with REST APIs and external marketplace, ERP, or partner integrations.

• Strong debugging and production incident-management skills.

• Ability to work independently and manage multiple priorities across different workstreams.

• Willingness to respond to critical production issues outside standard business hours.

• Ability to respond to P1 incidents within 30 minutes.

• Willingness to produce codebase and system documentation.

• Availability for a full-time, 12-month engagement.

• Experience with payment systems, marketplace integrations, or migration projects is an advantage.