Company
FinTech
Sr.Node.js/TypeScriptEngineer-SystemMigration(Contract)
Neural analysis suggests this role is
optimal for experienced candidates.
“Sr. Node. js / TypeScript Engineer - System Migration (Contract). Skills: Node.js, TypeScript, Data migration, ETL. Read data from SQL. Map legacy entities”
Industry & Context.
Root cause analysis
What They're Looking For.
Must Have
TypeScript and Node.js experience, Data migration and ETL experience, Docker and Kubernetes experience, Experience with relational databases, Experience building backend services, Experience with long-running background processes, Systems design instincts
Nice to Have
Payments or fintech experience, Experience with PHP
What You'll Do.
Build migration workflows
Track migration progress
Handle large migrations
Work through incomplete requirements
Integrate with payment data
Integrate with merchant data
Integrate with user data
Integrate with subscription data
Integrate with token data
Full Job Description
We're looking for a senior engineer to build a migration service that moves customers from a legacy payments platform into a core platform. The source system is a legacy PHP application with a SQL database. The target is a set of REST APIs. The work involves understanding the existing data model, mapping it to the new platform, and building a reliable migration service that can be run repeatedly for different partners. Migration sizes range from a handful of records to hundreds of thousands. ## Requirements #### What You'll Be Working On * Reading data directly from a legacy SQL schema * Mapping legacy entities to current API models * Building migration workflows that can start, stop, resume, and retry * Tracking migration progress and failures * Handling large migrations that may run for hours or days * Working through cases where source and target systems don't map cleanly * Integrating with payment, merchant, user, subscription, and token-related data Some payment data may require access to encrypted values within the source environment before being sent to the destination platform. #### Tech Stack * TypeScript / Node.js * SQL * REST APIs * Docker * Kubernetes #### What We're Looking For * Strong TypeScript and Node.js experience * Data migration and ETL experience * Seasoned Experience with Docker and Kubernetes in production * Comfortable working directly with relational databases * Experience building backend services and long-running background processes * Good systems design instincts around reliability, observability, and recovery * Able to work through incomplete requirements and messy legacy systems without needing everything specified up front #### Bonus Points * Payments or fintech experience * Experience with PHP (in order to reverse engineer any undocumented legacy API interactions)
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