Senior Payment Technical Manager

GR8_TECH builds B2B iGaming platforms for operators who play to lead. They deliver full-cycle, high-impact technology designed to scale, including seamless integrations, expert consulting, and long-term operational support. Their platform powers millions of active players and supports business growth across brands, markets, and geographies. The company has over 1000 employees distributed across multiple locations and time zones.

Must-have:

• Minimum 2+ years of experience in payment integrations configurations or similar roles.
• Experience in configurations, QA, or Business Analysis within payments or fintech.
• Strong understanding of JSON and XML with ability to configure payloads and provider schemas.
• Hands-on experience with REST clients and API contract validation.
• Working knowledge of SQL/PostgreSQL for data validation and diagnostics.
• Experience with webhooks/callbacks verification and troubleshooting.
• Experience with Git/GitLab for configuration versioning and change control.
• Basic understanding of CI/CD processes.
• Solid understanding of payment flows including authorization, capture, settlement, refund, and void.
• Knowledge of 3DS/SCA flows and MID management.
• Awareness of compliance and risk controls such as KYC, AML, and fraud rules.
• Practical experience with Postman or similar REST tools, JIRA, Confluence, manual testing, and log analysis tools.
• Strong sense of ownership, ability to manage multiple tasks, and understanding of SDLC processes.

Nice-to-have:

• Experience in iGaming industry.

Client configuration and setup:

• Intake, clarify, and prioritise configuration change requests from clients and internal teams.
• Translate business constraints into executable configurations across payment methods and MIDs.
• Configure and maintain payment methods, acquirer connections, and MIDs in Back Office.

Validation, launch, and support:

• Plan and execute end-to-end validation including request/response mapping, callbacks, and reconciliation checks.
• Coordinate production launches ensuring readiness across Engineering, SRE, Compliance, and Support.
• Provide L3 support, investigate incidents, and resolve configuration-related issues.

Observability, processes, and ownership:

• Analyse logs and transactions using observability tools to ensure configuration stability.
• Define monitoring dashboards and alerts for approval rates, errors, and provider performance.
• Maintain documentation, workflows, and act as subject-matter expert for Payment Gateway configuration.