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.

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.