Middle 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.

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.