Senior Backend Developer, File Processing

payabl.

Senior Backend Developer focusing on migrating legacy Perl systems to Python-based architecture in a remote position. Collaborating on file processing systems for payment schemes.

Posted 6/22/2026full-timeRemote • 🇺🇦 UkraineSeniorWebsite

Tech Stack

Tools & technologies

AirflowAWSMySQLPerlPostgresPython

About the role

Key responsibilities & impact

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
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 from card schemes and acquirers
Write technical documentation and establish best practices across the team

Requirements

What you’ll need

5+ years of production-grade Python expertise
Proven experience in job orchestration using Prefect or Airflow
Solid experience with AWS services, specifically S3, Lambda, SQS, and ECS
Strong experience with relational databases (MySQL/PostgreSQL) and processing large-scale file-based data
Advocate for clean code

Benefits

Comp & perks

Annual Learning Budget for professional development (eligible after probation)
Company celebrations
Opportunities to participate in international company events and initiatives

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonPerljob orchestrationPrefectAirflowPostgreSQLRDSAWSS3Lambda

Soft Skills

technical documentationbest practicesadvocate for clean code