Merchant Integration & Technical Support Manager

Who we’re looking for

• 2+ years of experience in payments, FinTech, PSPs, acquiring, payment orchestration, or technical merchant support environments;
• Hands-on experience with payment orchestration platforms or similar payment infrastructure solutions is essential;
• Understanding of payment infrastructure concepts, including H2H integrations, APIs, hosted payment pages, 3DS, tokenisation, and webhooks;
• Ability to read API documentation, test endpoints, inspect payloads, and troubleshoot integration flows;
• Strong technical mindset with the ability to understand and investigate payment system behaviours and integration logic;
• Experience working directly with merchants or clients in a technical, customer-facing capacity;
• Excellent problem-solving and incident management skills in fast-paced operational environments;
• Strong communication skills with the ability to explain technical concepts clearly to non-technical stakeholders;
• Fluent English, both written and spoken.

What you’ll do

• Configure and integrate new acquirers and payment providers into the payment orchestration environment;
• Set up provider credentials, API access, routing logic, and payment methods within the platform;
• Create and maintain merchant accounts, ensuring accurate onboarding and production readiness;
• Guide merchants through technical go-live processes, including API integration and payment setup validation;
• Advise clients on the most suitable integration models, including Host-to-Host (H2H), hosted payment pages, and API-based solutions;
• Act as the primary technical contact for merchants after launch, handling integration-related incidents and operational support;
• Troubleshoot payment processing issues, webhook failures, routing inconsistencies, tokenisation challenges, and 3DS-related errors;
• Collaborate with payment providers and external partners to resolve technical incidents and minimise downtime;
• Monitor live integrations and proactively identify anomalies, performance risks, or configuration issues;
• Maintain clear technical documentation covering integrations, workflows, recurring issues, and support procedures.

About the position

Our client is a fast-growing international payments infrastructure provider helping businesses process transactions globally through a unified API ecosystem. Their platform supports card acquiring, global payouts, and crypto payment flows, serving merchants, marketplaces, and FinTech platforms across multiple markets. As the business continues to scale, they are looking for an Merchant Integration & Technical Support Manager to take ownership of merchant technical onboarding, payment provider integrations within a payment orchestration environment, and post-live technical support. This is a highly operational, client-facing role where you will work across merchants, payment providers, and internal teams to ensure stable, efficient, and scalable payment processing environments. If you enjoy solving integration challenges, working with APIs and payment flows, and becoming the trusted technical partner for merchants in production, this opportunity offers strong ownership and international exposure within the FinTech ecosystem.

Benefits

• Opportunity to work within a rapidly scaling international payments and FinTech environment;
• High-ownership role with direct impact on merchant experience and platform performance;
• Flexible remote working model;
• Exposure to global payment infrastructure, acquiring networks, and modern orchestration technologies;
• Collaborative international team with strong operational and technical expertise;
• Career growth opportunities within integrations, payment operations, or technical account management;
• Dynamic environment where your ideas and technical input directly influence processes and scalability.