HN Services Romania
Romania
Senior Backend Software Engineer (Go, Kafka, GraphQL, Ruby)
- Apache
- AWS
- Cloud
- Cobol
P
AI Summary
Join our lean engineering team as a Senior Backend Developer to lead the transition from legacy Perl/crontab infrastructure to a modern, observable, and maintainable Python-based architecture. Design, build, and operate systems that process daily scheme files. Contribute to architecture decisions and establish best practices across the team.
Key Highlights
Lead pipeline migration from legacy Perl/crontab infrastructure to Python-based architecture
Design and implement orchestration using Prefect or Airflow
Instrument services with structured logging and metrics for observability
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, including alerting, observability dashboards, and safe job re-run capabilities
Instrument services with structured logging and metrics (CloudWatch, or Grafana) to eliminate the need for direct production server access
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
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Nice to Have
Familiarity with payment scheme file formats (Visa BASE II, Mastercard IPM, or equivalent)
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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