Technical Onboarding & Payments Support Specialist

We work with prop trading firms, forex and CFD brokers, iGaming operators, and other high-risk businesses, matching them with the right acquirers, PSPs, banking partners, and payment infrastructure.

But we’re not introducers who make an introduction and step away.

We’re hands‑on operators who stay involved from the first conversation through onboarding, integration, compliance, corporate structuring, licensing, and ultimately live processing.

As part of our infrastructure, Fin Set provides clients with access to our gateway and orchestration platform, which connects merchants to multiple payment providers through a centralized integration.

We are looking for a Technical Onboarding & Payments Support Specialist to own the technical support side of our client journey—from initial gateway integration and sandbox testing through launch and ongoing live processing.

You will be the primary technical point of contact for our merchants and will sit between the client’s technical team, Fin Set, our gateway/orchestration technology provider, and the PSPs and acquirers connected to the merchant.

This is not a copy-and-paste support role
.

We need someone who can understand a technical problem, investigate it, communicate clearly with developers, work through API documentation, and attempt to solve issues independently before escalating them to our technology partners.

When escalation is necessary, you will be responsible for communicating the issue clearly to the appropriate technical team, following it through to resolution, and translating the outcome back to the client.

The objective is simple:
make integrations easier, launches smoother, and technical issues faster to resolve.

Guide new clients through the technical integration with Fin Set’s gateway and orchestration platform.

You’ll work directly with client developers to help them understand the API documentation, integration requirements, authentication, credentials, sandbox environment, payment flows, testing procedures, and the steps required to move into production.

You should be comfortable reading API documentation and explaining technical concepts to developers without simply forwarding documentation and expecting them to figure everything out themselves.

You’ll help troubleshoot integration issues, identify likely causes, and work with the client to resolve problems wherever possible.

When an issue requires intervention from our gateway/orchestrator technical team, you’ll gather the necessary information, elevate it properly, and manage communication until the issue is resolved.

Once the initial integration is complete, you’ll help merchants successfully move from sandbox testing into their live environment.

This includes:

• Assisting clients with navigating the gateway/orchestration platform.

• Helping configure and connect PSP/acquirer credentials as providers are onboarded.

• Coordinating technical requirements between the merchant and the relevant PSPs.

• Helping merchants perform test transactions and validating payment flows.

• Troubleshooting failed tests and identifying whether issues originate with the merchant integration, gateway/orchestrator, PSP, or configuration.

• Making sure the technical side of the setup is ready before the merchant begins live processing.

You’ll effectively act as the technical owner of the merchant’s journey from integration → testing → production
.

Your responsibility doesn’t end when the merchant goes live.

You will be the first point of contact for technical support in the communication channels we maintain with our clients.

When merchants experience technical issues, you’ll investigate first…