Middle Payment Technical Manager
GR8_TECHGR8_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.
What you’ll drive
Payment configuration & launch management
Configure projects, MIDs, payment methods, gateways, and client requests in Back Office according to agreed priorities;
Review requirements and clarify missing information before starting configuration;
Use AI-assisted tools, such as Kiro, to prepare MID configuration tasks based on client requirements and provider documentation;
Perform pre-production and production checks using established checklists and attach supporting evidence to Jira tasks;
Coordinate testing with PSPs, local testers, and merchant teams;
Execute production launches and verify initial transactions after each launch.
Technical troubleshooting & support
Provide L3 support for configuration-related issues and resolve them within agreed SLAs;
Investigate issues using logs, API responses, transaction records, and SQL queries;
Validate API contracts, payloads, webhooks, and callbacks to identify configuration issues;
Escalate blockers, dependencies, and delivery risks to the Team Lead;
Support merchant teams in troubleshooting payment configuration issues.
Process improvement & documentation
Maintain configuration records, setup instructions, and troubleshooting documentation;
Develop a working knowledge of the 3API product, Payment Gateway adapters, and related configuration processes;
Collaborate with Product and Analytics teams to simplify configuration in Back Office and the Merchant Dashboard;
Identify recurring issues and propose improvements to configuration workflows;
Use AI-assisted tools to improve configuration accuracy and reduce manual work.
Merchant enablement & collaboration
Work closely with internal teams, PSPs, local testers, and merchant teams to ensure successful payment launches;
Train merchant teams to configure MIDs and payment methods in Back Office using approved instructions;
Communicate configuration requirements, testing results, and potential risks clearly;
Ensure smooth handovers and consistent execution of established processes.
What makes you a GR8 fit
Must-have
At least 1–1.5 years of experience in payment integration configuration, technical operations, or a similar role;
Hands-on experience configuring payment methods and Merchant IDs (MIDs);
Strong understanding of JSON and XML, including payload structures and provider schemas;
Experience with REST APIs, API contract validation, and Postman or equivalent tools;
Working knowledge of SQL/PostgreSQL for data validation and troubleshooting;
Understanding of webhooks, callbacks, and common payment flows, including authorization, capture, settlement, refunds, and voids;
Knowledge of 3-D Secure (3DS), Strong Customer Authentication (SCA), and MID management;
Familiarity with Jira, Confluence, manual testing, and log analysis tools;
Basic understanding of CI/CD and software development lifecycle processes;
English at B2 level or above;
Ukrainian or Russian at B1 level or above.
Nice to have
Experience in the iGaming industry;
Familiarity with KYC/AML requirements and fraud prevention controls relevant to payment configuration;
Experience using AI-assisted tools for technical configuration or documentation;
Experience supporting production launches and resolving payment-related incidents.
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.