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Senior Backend Engineer - Pipeline Migration Lead

payabl. • United Kingdom
Relocation
This Job is No Longer Active This position is no longer accepting applications

Lead migration of legacy Perl batch jobs to modern Python-based services. Design and implement orchestration, manage data layer, and process payment scheme files. Collaborate on architecture decisions and establish best practices in a growing eCommerce payment processing team.

Key Highlights
Migrate legacy Perl batch jobs to Python
Design and implement orchestration using Prefect or Airflow
Manage data layer for file ingestion and processing
Key Responsibilities
Migrate and re-architect legacy Perl batch jobs and crontab pipelines into modern Python-based services
Design and implement orchestration using Prefect or Airflow
Manage the data layer for file ingestion, landing raw scheme files to S3, parsing/transforming them, and persisting to PostgreSQL or RDS for reconciliation
Process and reconcile payment scheme files (clearing, settlement, chargebacks) from card schemes and acquirers
Contribute to architecture decisions, write technical documentation, and establish best practices across the team
Technical Skills Required
Python AWS SQL
Benefits & Perks
Relocation package
Future-proof your finances
Grow with us: annual learning budget
Nice to Have
Familiarity with payment scheme file formats
Experience reading and refactoring Perl or legacy scripting languages
Knowledge of payment clearing, interchange, and reconciliation processes

Job Description

We are a lean but growing engineering team working in the eCommerce payment processing space. As we expand, we are looking for a Senior Backend Developer to join our File Processing squad and take ownership of our pipeline migration. You will lead the transition from legacy Perl/crontab infrastructure to a modern, observable, and maintainable Python-based architecture.
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