Senior Payment Technical Manager

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.

Fluent English (B2+), both written and spoken; Language skills: Ukrainian or Russian B1+. Nice-to-have Experience in iGaming industry.

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.

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.