Senior System Analyst – AI & Integration (f/m/x)

Sii; Poznań, Szczecin; On-site; PLN 180,000 - 260,000; Full time

Job summary

Sii in Poznań seeks an experienced System Analyst to design solutions, support development teams, and leverage AI to work smarter.

You will model processes, define integrations, and create UML/BPMN diagrams while hands-on coding with Python/C#/Java. You will mentor analysts and help implement GenAI-driven workflows across microservices.

Fluent Polish and English required; the role blends technical leadership with practical software engineering in a dynamic enterprise environment.

Qualifications

• 5+ years of systems analysis and IT solution design experience.
• Strong UML/BPMN modeling skills and data-flow design.
• Hands-on with code (Python/C#/Java) and integration design.
• Excellent command of Polish and English, spoken and written.

Responsibilities

• Analyze business and technical requirements and translate into system solutions.
• Design system architecture and define interactions between components.
• Model processes, data flows, and domain concepts to support designs.
• Define integration approaches and data exchange between services.
• Create and interpret UML and BPMN diagrams for design documentation.
• Collaborate with development teams to refine and implement solutions.
• Apply GenAI and AI agents to enhance analysis and workflows.
• Mentor other analysts and share expertise.

Skills

System analysis

Microservices

REST APIs

Event-driven

UML

BPMN

SQL

Data modeling

Git/GitFlow

AI tools

AI agents

Python/Java

Polish & English

Tools

VS Code

GitHub Copilot

AI frameworks

Kafka/RabbitMQ

Job description

Join a role where system analysis meets modern software engineering and AI. We are looking for an experienced System Analyst who designs solutions, supports development teams and uses AI to work smarter and more efficiently. You will work hands-on with code and repositories, using GitHub Copilot, AI agents and automation to streamline your daily work. As a technical leader, you will also share your expertise and mentor other analysts.

Your tasks

• Analyzing business and technical requirements and translating them into system solutions
• Designing system architecture and defining how systems and their components interact
• Developing process, domain, and data flow models to support solution design
• Defining system integration approaches, data exchange mechanisms, and communication between services
• Creating and interpreting UML and BPMN diagrams to support system design and documentation
• Maintaining and updating technical documentation and models supporting the software development process
• Collaborating with development teams and other stakeholders to refine and implement technical solutions
• Using AI tools to support analysis, solution design, and day-to-day technical work
• Designing AI-powered workflows and solutions, including AI agents and process automation mechanisms
• Analyzing opportunities to apply GenAI solutions within existing processes and systems
• Supporting the design of solutions based on RAG, AI agents, and integrations with external data sources and services

Requirements

• At least 5 years of experience in systems analysis and IT solution design
• Strong understanding of microservices architecture, REST APIs, and event-driven architecture (Kafka/RabbitMQ)
• Ability to model business processes and technical solutions using UML, BPMN, and domain models
• Proven ability to design integrations and data exchange mechanisms between systems
• Proficiency in SQL and data modeling
• Advanced knowledge of Git and experience working with GitFlow
• Practical experience with VS Code, GitHub Copilot (Agent Mode), and AI tools in everyday development workflows
• Hands‑on involvement in building and deploying AI agents and custom AI solutions
• Strong prompt engineering skills, including prompt creation and AI workflow design
• Familiarity with AI orchestration frameworks such as Semantic Kernel, LangGraph, MCP, CrewAI, AutoGen, or similar technologies
• Understanding of AI Factory / GenAI Factory concepts and their application in enterprise environments
• Practical knowledge of RAG, vector databases, MCP, and process automation
• Ability to read, understand, and work with code (Python, C#, Java, or another programming language) to analyze and define technical solutions
• Good command of both Polish and English, spoken and written

Nice to have

• Familiarity with Agile methodologies
• Background in the financial sector