Investigate and resolve merchant-reported issues related to payment processing, including failed transactions, decline reasons, and routing behavior;
Query databases and analyze logs/system events to identify root causes of technical issues;
Validate processor responses, webhook behavior, and merchant configurations (routing, fraud rules);
Support merchant onboarding, go-live activities, and payment method configuration;
Monitor and investigate approval rate anomalies and processor-specific issues;
Escalate complex cases appropriately — onboarding issues to the Lead Solution Engineer, processor issues to the Integration Team, product defects to the Product Team;
Maintain troubleshooting guides, knowledge base articles, and document recurring issues for process improvement.

3+ years of experience in Technical Support, Fintech, Payments, PSPs, or Merchant Support / Payment Operations;
Ability to analyze application logs and investigate technical issues;
Experience working with REST APIs, JSON, and tools like Postman;
Experience working with SQL and querying databases;
Understanding of Authorization/Capture flows, Refunds, Chargebacks, and 3DS Authentication;
Understanding of Payment Routing, Acquiring/PSP ecosystems, and merchant onboarding processes;
Strong analytical and problem-solving skills, with the ability to explain technical issues to non-technical users;
Fluent English and strong communication skills; ability to manage multiple priorities;
Experience with monitoring/analytics tools such as Kibana, Grafana, or Metabase, and/or experience with payment orchestration platforms.

Full remote work.
Competitive compensation with a service contract.
Transparent performance reviews twice a year, with bonus opportunities and salary adjustments.
An annual allowance that you can use for home office improvements, sports activities, equipment upgrades, and more—tailor it to what benefits you most.
Investment in your development: paid language courses, access to various learning platforms, and a mindfulness benefit, including psychological support with 50% coverage.
Career growth in a fast-scaling project with opportunities to influence technical decisions.
A culture of recognition: our peer reward program celebrates contributions from across the team.

Technical Support Specialist

Key skills