GR8 Tech - Senior Payment Technical Manager

• 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 • 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. • Benefits Cafeteria — annual budget you allocate to: • Sports • Medical • Mental health • Home office • Languages. • Work-life & support • 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. • FUELLED BY TRUST • OWN YOUR GAME: we take initiative and own what we do. • OWN YOUR GAME • ACCELER8: we move fast, focus smart, and keep it simple. • ACCELER8 • CHALLENGE ACCEPTED: we grow through challenges and stay curious. • CHALLENGE ACCEPTED • BULLETPROOF: we’re resilient, ready, and always have a plan. • BULLETPROOF