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Salary
$54k – $64k per year
Location
In office (Warsaw)
Seniority
Senior
Employment
Full-Time
Overview
Company
Impact
Profile match
B2Bnetwork is a Polish company that operates in the IT contracting and outsourcing market, connecting businesses with technology specialists. It focuses on providing recruitment and staffing services for IT projects.

About the project

We are looking for an experienced Senior System & Integration Analyst to join a long-term project within a large international organization from the financial sector.

The role combines system analysis, requirements engineering and integration design. You will act as a bridge between business and technical teams, translating business needs into clear technical requirements, integration designs, API specifications and data models.

This is an analytical and design-focused position rather than a software development role. Strong hands-on experience with REST API design and UML is particularly important.

Your responsibilities

  • Conduct stakeholder interviews and workshops to gather business and technical requirements.

  • Analyze existing systems and documentation to identify gaps and improvement opportunities.

  • Document functional and non-functional requirements.

  • Create and maintain technical documentation, including requirement specifications, process flows and system designs.

  • Design REST APIs following best practices and architectural standards.

  • Create UML diagrams and BPMN process models.

  • Develop user stories and clear acceptance criteria.

  • Create logical and physical data models and database schemas based on business requirements.

  • Design integration patterns and data flows between systems.

  • Work closely with business stakeholders, developers, architects and other technical teams.

  • Facilitate cross-functional workshops and design sessions.

  • Review requirements and design artefacts to ensure quality and consistency.

  • Ensure solutions and documentation comply with data governance and management standards.

Our requirements

  • Strong experience as a System Analyst, Integration Analyst, Business/System Analyst or in a similar role.

  • Expert-level knowledge of REST API principles, design patterns and best practices.

  • Hands-on experience designing scalable and maintainable APIs - not only consuming or testing existing ones.

  • Strong practical knowledge of UML and experience creating system documentation and diagrams.

  • Very good knowledge of BPMN and business process modelling.

  • Strong requirements gathering and analysis skills.

  • Practical knowledge of SQL and relational databases.

  • Experience with Data Modelling, including logical and physical data models and relationships between entities.

  • Understanding of Data Governance and Data Management principles.

  • Good understanding of software development lifecycle methodologies such as Agile, Waterfall and DevOps.

  • Experience working with cross-functional technical teams.

  • Strong stakeholder management and communication skills.

  • Ability to create clear and comprehensive technical documentation.

  • Understanding of enterprise architecture principles.

  • Good command of English (minimum C1).

Optional

  • Knowledge of SOAP / WS-* and XML-based web services.

  • Experience writing acceptance criteria using Gherkin (Given/When/Then).

  • Experience with Git-based version control platforms.

  • Previous experience working in a large enterprise or financial environment.

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