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Payment Integration Engineer

CXM
Contract type
Ongoing
Work mode
Remote · GMT to GMT+4
Experience
Mid-level · 4+ years

Job description

A Payment Integration Manager role at an international broker, owning payment provider integrations end to end and acting as first-line response for payment incidents. It is a technical operations role rather than a coordination role.

At a glance

Work mode
Remote · GMT to GMT+4
Languages
English – Working proficiency, Russian – Working proficiency

What you'll do

  • Manage the full onboarding cycle for new payment providers, including initial technical calls, credentials and sandbox access, configuration and test design, User Acceptance Testing (UAT), production launch, and post-release stabilisation
  • Define integration acceptance standards and own the go/no-go decision before launch
  • Review provider API documentation and translate it into implementation-ready specifications for engineering, covering edge cases, failure paths, and confirmation model behaviour
  • Own the first-line response for payment incidents, including failed and stuck transactions, unconfirmed payments, and payment method-level anomalies
  • Investigate and drive incidents to resolution rather than simply escalating them
  • Diagnose provider-side versus platform-side issues using logs, API responses, and transaction data
  • Communicate findings clearly to providers, engineers, and internal stakeholders
  • Perform hands-on verification of payment integrations
  • Conduct manual checkout testing across mobile and desktop
  • Verify callbacks and API behaviour using Postman or equivalent tools
  • Execute SQL queries to investigate transaction data
  • Validate asynchronous payment statuses, confirmation models, redirect flows, and failure scenarios
  • Maintain a comprehensive catalogue of payment methods and providers, documenting supported capabilities, available integration types, completed testing, and known failure modes
  • Build the initial capability inventory of all live payment methods and providers
  • Convert ambiguous provider documentation and undocumented operational knowledge into actionable specifications
  • Produce a 90-day breakdown of deposit attempts, categorised by outcome: completed transactions, declined by the provider, abandoned by the user, abandoned during redirect, and completed but never confirmed back to the platform

What we're looking for

  • 4+ years of experience in payments, PSP integrations, or fintech platforms, with hands-on ownership of integrations rather than coordination alone
  • Working knowledge of APIs, webhooks, asynchronous payment statuses, callback mechanics, confirmation models, redirect flows, and common failure modes
  • Ability to review provider API specifications and identify missing information
  • Experience using Postman or equivalent tools for API testing
  • Experience performing structured checkout testing across mobile and desktop
  • Proven ability to investigate live payment incidents using logs and API responses
  • Ability to distinguish provider-side issues from platform-side problems
  • Experience translating incomplete or ambiguous technical documentation into clear specifications for engineering
  • Strong communication skills and composure during incidents
  • Basic knowledge of using AI tools in daily work
  • Working proficiency in both English and Russian, as both languages are used daily

Nice to have

  • Experience with Alternative Payment Methods (APMs) and local payment rails across Asia, Africa, or LATAM, beyond card payments
  • Knowledge of bank transfer rails, virtual accounts, QR-based payments, mobile money, and similar payment methods
  • Background in brokerage, crypto payments, payment orchestration, or other high-volume payment environments
  • Previous experience working with a PSP, payment gateway, or payment provider
  • Active use of AI tools in daily workflows
  • Ability to work independently and make decisions without constant supervision
  • A proactive approach to identifying improvements, proposing solutions, and implementing new processes

Your team

Payments Product

Payments Product is now a standalone function, and we are building the team around it. This is an early core hire.

How to get hired

  1. 1HR Interview: Background, motivation, and overall role alignment
  2. 2Technical Interview: Payment integration knowledge, technical tools, hands-on experience, and incident diagnosis
  3. 3Product & Problem-Solving Interview: Integration decisions, prioritisation, and practical problem-solving
  4. 4Final Interview: Discussion with senior stakeholders

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About CXM

An international broker. Clients fund and withdraw through approximately 60 payment methods across Asia, Africa, LATAM, and the Middle East.

Key facts

  • Clients fund and withdraw through approximately 60 payment methods across Asia, Africa, LATAM, and the Middle East
  • Payments Product is now a standalone function