Posted Jul 10, 2026

Senior Payment Support Manager

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GR8_TECH builds B2B iGaming platforms for operators who play to lead. We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions. With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos. Our ambition drives us. Our people make it real. If you’re a challenger in spirit and a champion in action — join us. Why this role exists: This role exists to own end-to-end technical configurations for merchant payment integrations and cashier configurations, ensuring compliant, reliable, and observable payment processing across environments. The role focuses on accelerating time-to-live for clients through accurate setup, validation, and maintenance of payment configurations. It is a critical function as all client journeys and payment expansions depend on correct configuration processes. What you’ll drive: 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. What makes you a GR8 fit: 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. Why you’ll love working here: Benefits Cafeteria — annual budget you allocate to: Sports • Medical • Mental health • Home office • Languages. Work-life & support • Paid maternity/paternity leave + monthly childcare allowance. • 20+ vacation days, unlimited sick leave, emergency time off. • Remote-first + tech support + coworking compensation. • Team events (online/offline/offsite). • Learning culture with internal courses + growth programs. Our culture & core values: GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back. FUELLED BY TRUST: we’re open, honest, and have each other’s backs. OWN YOUR GAME: we take initiative and own what we do. ACCELER8: we move fast, focus smart, and keep it simple. CHALLENGE ACCEPTED: we grow through challenges and stay curious. BULLETPROOF: we’re resilient, ready, and always have a plan.