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Experience level:
1-3 years
Education level:
Higher
Languages:
Russian: Native
English: A2
Serbian: Native
Support Engineer in fintech with experience integrating payment providers, managing payment traffic, and analyzing transactions.
Improved successful payment conversion from 19% to 70% within one month, reduced incident resolution time, and ensured consistent SLA compliance.
Experienced in API integrations, monitoring, log analysis, and release testing. Quickly diagnose issues and propose data-driven solutions.
• Managed payment provider (PSP) integrations and payment routing rules to improve approval rates and reduce declines.
• Monitored payment performance and transaction funnels; investigated drops using logs, dashboards and SQL/analytics.
• Increased successful payment conversion from 19% to 70% in 1 month by tuning routing, retries, and anti-fraud/3DS rules.
• Handled incidents and escalations, reduced response time, and ensured stable SLA delivery.
• Tested releases and payment flows in staging/production, validated fixes, and coordinated rollouts with devs and providers.
• Prepared регулярные отчёты/insights on declines, chargebacks, and provider performance; proposed data-driven improvements.
• FinTech / PSP integrations (REST APIs, webhooks, callbacks)
• Payment routing & traffic management, decline analysis, conversion optimization
• Incident management & SLA (prioritization, escalation, post-mortems)
• Monitoring & log analysis (alerts, dashboards, troubleshooting)
• Transaction analytics & reporting (patterns, anomalies, fraud signals)
• Release testing / regression checks, production validation
• Tools: YouTrack/Jira, SQL basics, Postman, API testing, documentation
• Strong communication with providers, internal teams, and stakeholders