Overview

We are an international broker. Our clients fund and withdraw through roughly 60 payment methods across Asia, Africa, LATAM and the Middle East. Payments is now a standalone function, and we are building the team around it. We are looking for a Senior Backend Engineer who will own our connector layer and everything downstream of it: building a canonical adapter layer so that providers plug in rather than get built one by one, moving payment methods to server-to-server and embedded flows, and making transaction status reliable and observable across the estate.

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
Required Qualifications:
  • 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. This is the core of the role rather than a detail, and you will both build against it and specify it
  • 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
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
Nice To Have:
  • 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
Skills:
  • TypeScript
  • Node.js
  • Relational databases
  • Payment systems
  • API integration
  • Architecture decisions
Technologies:
  • TypeScript
  • Node.js
  • .NET
Note:

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