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Natalia Atiukova

@nataliaatiukova

FinTech Software Integration Engineer at International FinTech SaaS Platform (ECAPZ), developing PSP payment integrations across AWS serverless systems.

Russian Federation

Message

At International FinTech SaaS Platform (ECAPZ), I develop end-to-end PSP payment integrations, from provider API research and request signing through testing and merchant onboarding. I work with JavaScript and Node.js in an AWS serverless environment.

I implement payment processing, webhooks, callbacks, and routing across providers, payment methods, and transaction types. I also investigate asynchronous flows and production incidents with AWS Lambda, SQS, DynamoDB, and CloudWatch.

At WinWinBot, I built QA processes from scratch as the project's first and only QA Engineer. I tested web and mobile functionality, APIs, payment flows, and AI-driven workflows, and developed Playwright-based UI checks.

At T-Bank and Astral-Soft (Kaluga-Astral), I investigated banking and enterprise-system incidents, analyzed transaction and system data, and supported resolution with engineering teams. At Astral-Soft, I also guided L1 specialists and improved incident workflows.

Experience

Work history, roles, and key accomplishments

Current

FinTech Software Integration Engineer

Current

ECAPZ

Sep 2026 - Present (2 months)

Own end-to-end development of PSP payment integrations from scratch, including provider API research, request signing, callbacks, transaction processing, and merchant onboarding. Implement and validate payment routing, webhooks, and production incident troubleshooting in an AWS serverless environment.

JavaScript NodeJS AWS Lambda Amazon SQS DynamoDB API Gateway PSP REST JSON Request Signing Callbacks Webhooks H2H HPP P2P P2C 3DS Open Banking IBAN A PM IDEAL USDT Pay In Pay Out Routing Cascading Git Cloudwatch

QA Engineer

WinWinBot

Feb 2026 - Sep 2026 (7 months)

Built QA processes from scratch as the first and only QA Engineer, covering manual, API, and automated testing. Performed functional, integration, regression, and end-to-end testing of SaaS web and mobile functionality, including AI systems and payment features.

L2 Production Support Engineer

T-Bank

Jul 2023 - Feb 2026 (2 years 7 months)

Investigated L2 production incidents in FinTech and banking systems, performing triage, impact assessment, and root cause analysis. Diagnosed REST APIs, analyzed transaction lifecycles, and coordinated resolution with engineering and antifraud teams.

Incident Management Problem Management RCA REST APIs Postman Insomnia SQL Transaction Lifecycle Disputes Chargebacks Payment Systems C2C SBP Card Transactions Logs Forge Siebel SAP

L2/L3 Technical & Product Support Specialist

Astral-Soft

Sep 2020 - Jun 2023 (2 years 9 months)

Coordinated second-line technical support operations and complex incident investigations, handling 50+ incidents weekly. Mentored L1 specialists, developed knowledge base materials, and improved escalation workflows to enhance support efficiency.