System Analyst (in fintech or banking domains)

DOU Polska

Województwo mazowieckie

Remote

PLN 180,000 - 280,000

Full time

2 days ago

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Benefits offered by this job

Remote work mode

Flexible work schedule

Competitive compensation

Q&A with top management

Job summary

DOU Polska is seeking an experienced System Analyst for the Fintech Core project to define architecture, specifications, and integration designs for a modular fintech platform. You’ll work with cross-functional teams to translate requirements into technical designs and ensure secure, compliant, scalable microservices across payments, wallets, and card issuance.

The role involves deep exposure to payments ecosystems, cross-border transactions, KYC/AML, and regulatory standards, with hands-on

Qualifications

4+ years as System Analyst, Technical Analyst, or similar in fintech or banking
Strong understanding of financial systems architecture including ledgers, payments, and accounts
Experience with microservices, API design, and distributed systems
Proficiency in technical documentation: system design docs, data flow, ER diagrams
Knowledge of database design and data modeling for transactional systems
Familiarity with integration patterns, message queues, and event-driven architectures
Understanding of ISO 20022, SWIFT, and card schemes is a plus
Experience with REST/OpenAPI/Swagger and webhooks
Knowledge of cloud deployment (AWS/Azure/GCP)
Understanding of OAuth, JWT, and API security fundamentals

Responsibilities

Analyze and document system requirements for platform modules including payments, card issuance, wallets, accounts, ledger management, and compliance systems
Translate business requirements into technical specifications, API contracts, database schemas, and integration architectures
Design data models, relationships, and data flows for transactional and financial systems with normalization and performance
Define integration patterns and specs for payment processors, KYC/AML providers, card issuers, and open banking platforms
Document system behaviors using sequence, component, deployment diagrams, and API specs (OpenAPI/Swagger)
Collaborate with Solution Architects to ensure designs align with microservices, scalability, and best practices
Define non-functional requirements including performance, security, data retention, and audit trails
Lead technical design workshops with Engineering to review specs and address risks
Create comprehensive system documentation in Confluence covering flows, interactions, formats, and infra
Support QA by defining test scenarios, acceptance criteria, and end-to-end strategies
Analyze performance bottlenecks and propose optimizations for high-throughput processing
Maintain traceability from business requirements to specs, implementations, and tests
Participate in sprint planning and architecture review boards

Skills

Fintech domain understanding

System analysis

Microservices architecture

API design

Technical documentation

UML/BPMN modeling

Technical writing

Cloud familiarity (AWS/Azure/GCP)

Education

Bachelor's degree in Computer Science

Tools

OpenAPI/Swagger

Confluence

UML tools

Job description

Position Overview

As a System Analyst on the Fintech Core project, you will define technical architecture, system specifications, and integration designs for a white-label modular fintech platform that enables rapid creation of digital banking and payment products. The platform provides a complete technology stack including general ledger, middleware, mobile/web applications, and extensive third-party integrations for KYC, payments, card issuance, and compliance. You’ll work closely with Business Analysts, Solution Architects, and Engineering teams to translate business requirements into detailed technical specifications, design robust system architectures, and ensure seamless integration across microservices while maintaining regulatory compliance and enterprise-grade security.

This role offers hands‑on experience designing financial systems at scale, with exposure to payment processing, card networks, digital wallets, cross‑border transactions, and regulatory compliance frameworks serving multiple fintech implementations globally.

General Project Description

Fintech Core is a white‑label modular fintech solution designed for rapid creation and launch of digital banking and payment products. It provides a comprehensive, turnkey platform that enables businesses to build neobanks, digital wallets, payment systems, and other fintech products within 3 months rather than years. The solution includes a complete technology stack: a robust general ledger platform, middleware layer, customizable frontend applications for iOS/Android/Web, and extensive third‑party integrations for KYC, payments, card issuance, and compliance. Unlike traditional SaaS offerings, Fintech Core provides full access to source code, eliminating vendor lock‑in and enabling deep customization.

The platform is built on microservices architecture with modular components that can be independently scaled and customized. It supports multi‑currency operations, cross‑border payments, card issuing, account management, transaction processing, compliance monitoring, and back‑office orchestration. The solution is PCI & DSS compliant and designed to meet regulatory requirements across multiple jurisdictions.

Project stage

Active development and continuous enhancement. The platform is mature with multiple successful implementations but undergoes constant evolution to incorporate new regulatory requirements, payment integrations, and fintech capabilities. Quality, scalability, and compliance are paramount priorities.

The size and the structure of the team

Cross‑functional team including Product Owners, Business Analysts, System Analysts, Frontend/Backend Developers, QA Engineers, DevOps, Security Specialists, and Compliance Consultants. The team operates in an Agile environment with close collaboration between technical and business functions.

YOUR BACKGROUND

Technical Skills

4+ years of experience as System Analyst, Technical Analyst, or similar role in fintech or banking domains

Strong understanding of financial systems architecture including general ledgers, payment processing, and account management

Experience with microservices architecture, API design, and distributed systems

Proficiency in creating technical documentation: system design documents, data flow diagrams, sequence diagrams, ER diagrams

Knowledge of database design and data modeling for transactional systems

Understanding of integration patterns, message queues, and event‑driven architectures

Familiarity with payment systems standards (ISO 20022, SWIFT, SEPA, card schemes)

Experience with API specifications (REST, OpenAPI/Swagger, webhooks)

Understanding of cloud infrastructure and deployment architectures (AWS, Azure, GCP)

Knowledge of authentication and authorization mechanisms (OAuth, JWT, API keys)

Domain Knowledge

Understanding of core banking concepts: accounts, transactions, balances, ledgers, reconciliation

Knowledge of payment flows: domestic/international transfers, card payments, digital wallets

Familiarity with KYC/AML processes and regulatory compliance requirements

Understanding of financial data security standards (PCI DSS, GDPR)

Experience with fintech product features: onboarding, card issuing, FX, acquiring

Analytical & Documentation Skills

Excellent analytical thinking and problem‑solving abilities

Strong technical writing skills with attention to detail

Ability to translate complex business requirements into technical specifications

Experience with UML, BPMN, or similar modeling notations

Proficiency with documentation tools (Confluence, Notion, or similar)

Experience with requirements management and traceability

English level — Upper-Intermediate.

Skills That Will Be a Plus

Experience with white‑label or multi‑tenant system architectures

Knowledge of blockchain and cryptocurrency integrations

Familiarity with regulatory frameworks (PSD2, Open Banking, MiFID)

Experience with performance testing and system optimization

Understanding of DevOps practices and CI/CD pipelines

Previous experience with modular platform architecture

Knowledge of financial compliance and audit requirements

Experience with data migration and system integration projects

Responsibilities

Analyze and document system requirements for platform modules including payments, card issuance, digital wallets, accounts, ledger management, and compliance systems

Translate business requirements into detailed technical specifications, API contracts, database schemas, and integration architectures

Design data models, entity relationships, and data flow diagrams for transactional and financial systems with appropriate normalization and performance considerations

Define integration patterns and technical specifications for connecting with payment processors, KYC/AML providers, card issuers, and open banking platforms

Document system behaviors using sequence diagrams, component diagrams, deployment architectures, and API specifications (OpenAPI/Swagger)

Collaborate with Solution Architects to ensure system designs align with microservices architecture patterns, scalability requirements, and technical best practices

Define non‑functional requirements including performance benchmarks, security controls, data retention policies, and audit trail specifications

Facilitate technical design workshops with Engineering teams to review system specifications, validate implementation approaches, and identify technical risks

Create comprehensive system documentation in Confluence covering technical flows, component interactions, message formats, and infrastructure requirements

Support QA teams by defining system integration test scenarios, technical acceptance criteria, and end‑to‑end testing strategies

Analyze system performance bottlenecks and propose optimization solutions for high‑throughput financial transaction processing

Ensure all technical specifications maintain regulatory compliance requirements (PCI DSS, GDPR, PSD2) and financial data security standards

Maintain traceability between business requirements, system specifications, technical implementations, and test cases

Participate in sprint planning, technical refinement sessions, and architecture review boards to ensure alignment between product vision and technical execution