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Open nowPosted 11 days ago

Senior Backend Engineer-Payments

Workable (global search)108,016 open roles

Where
Armenia
Work mode
Remote
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Your applicationOpen nowSenior Backend Engineer-PaymentsWorkable (global search) · Armenia

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This job: posted 11 days ago

Workable (global search) median: 7 days open

The posting

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.

You will also be the payments function's technical counterpart to the orchestration platform team: the behaviour we need from the platform is specified here, argued here and reviewed here.

Your responsibilities will be:

  • 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

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. 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

Will be a significant plus:

  • 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
  • What the first year looks like.
  • In the first months you take over the integration codebase with a documented handover, strengthen transaction status handling, and ship your first server-to-server integration.
  • By mid-year the adapter layer is in place, new providers go live against it rather than as one-off builds, and transaction status and provider performance are observable across the estate.
  • In the second half the migration to server-to-server and embedded flows runs as a programme across methods, and the same integration set starts extending to our other entities. As the team grows, a Systems Analyst takes over instrumentation and verification while integration engineering stays with you.

Recruitment process:

  • HR interview, covering background, motivation and fit
  • Technical interview on backend engineering and the payments domain
  • Home task as a case from the real needs
  • System design and problem-solving interview, covering integration design, failure handling and status modelling
  • Final interview with senior stakeholder.

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

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