This is a remote position.

We are looking for two 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.

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