Apply

Ready to go for it?

AI Apply speeds things up—apply directly if you prefer.

FREE ACCESS
5,000–10,000 jobs/day
JobTailor Logo

See all jobs on JobTailor

Search thousands of fresh jobs every day.

Discover
  • Fresh listings
  • Fast filters
  • No subscription required
Create a free account and start exploring right away.
payabl.

Senior Backend Developer – File Processing

payabl.

Senior Backend Developer at payabl. overseeing migration from Perl infrastructure to modern Python services for eCommerce payment processing.

Posted 6/23/2026full-timeVilnius • 🇱🇹 LithuaniaSeniorWebsite

Tech Stack

Tools & technologies
AirflowAWSGrafanaMySQLPerlPostgresPython

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.
  • 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.

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
  • We value deep engineering logic over AI-generated snippets. You should be a "clean code" advocate who can explain the reasoning behind every line you ship.
  • You care about the "why" behind a feature. You are interested in how a product works for the end-user and the business.
  • Strong English communication skills—both written and verbal.

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

✓ Tailor your resume
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonPerljob orchestrationstructured loggingmetricsrelational databasesfile processingdata transformationclean codetechnical documentation
Soft Skills
communicationengineering logicteam collaborationproblem-solvingattention to detail