Senior Backend Engineer-Payments

CXM Direct LLC

7d • Remote

About The Position

We are an international broker seeking a Senior Backend Engineer to join our standalone Payments team. This role involves owning the connector layer and downstream systems, building a canonical adapter layer for providers, migrating payment methods to server-to-server and embedded flows, and ensuring reliable transaction status observability. You will also serve as the technical counterpart to the orchestration platform team, defining required behaviors and reviewing implementations. The role offers significant influence on the orchestration platform and involves complex engineering challenges beyond typical CRUD operations, with scope that grows with the business.

Requirements

• 5+ years in backend engineering
• Strong in TypeScript, Node.js
• Comfortable in relational databases
• Production experience with payment systems: authorisation, callbacks, refunds, reconciliation and retry behaviour
• Practical understanding of idempotency, asynchronous status handling, transaction state machines and designing for partial failure
• Experience integrating third-party APIs of uneven quality, including working directly with a provider's integration team to resolve what the documentation does not answer
• The ability to own a service rather than close tickets: architecture decisions, standards and root cause fixes
• English and Russian at a working communicative level

Nice To Haves

• Exposure to .NET for work touching the client portal
• Experience with APM and local rails in Asia, Africa or LATAM rather than cards alone
• Experience with bank transfer rails, virtual accounts, QR-based methods, mobile money etc.
• Event-driven patterns in production: transactional outbox, idempotent consumers, sagas
• Background in brokerage, crypto payments, orchestration or another high-volume payments environment; on the provider side, at a PSP, gateway or payment company
• Active use of AI tooling in daily work
• Ability to work independently and make decisions without constant oversight
• Proactive mindset: willingness to propose improvements, fixes, new approaches

Responsibilities

• Building and owning the connector and adapter layer, so that adding or replacing a provider becomes configuration and a thin adapter rather than a new integration each time
• Migrating payment methods from redirect flows to server-to-server and embedded flows where the provider supports it, and measuring the result
• Owning everything downstream of the orchestration layer: reconciliation, transaction status handling on our side, method configuration and payment flows into the client portal
• Making transaction status reliable end to end, through active status polling, idempotent processing and reconciliation
• Building observability over transaction status and provider performance across the estate
• Specifying the behaviour we need from the orchestration platform: transaction state machine, idempotency, polling, routing and cascading rules. You design it, argue for it and review what comes back
• Supporting integration work for our card programme
• Extending the same integration set to acquired entities as configuration rather than a new build each time

Benefits

• Fixed monthly compensation of [based on experience]
• Fully remote work within GMT to GMT+4, with no relocation required
• Ownership of the connector layer and everything downstream, with direct influence on what the orchestration platform becomes
• Engineering problems that are not CRUD: asynchronous status across dozens of providers, partial failure, and local payment rails in emerging markets
• Scope that grows with the business: a card programme, new entities and new payment products
• Corporate AI tooling as part of the working process

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed