Senior Business Analyst (Fintech)

We are looking for a Senior Business Analyst to join a fintech project focused on designing a trading system with FIX protocol integrations.

This role is centered on deep analysis and high-quality system documentation that will define the foundation for future development. You’ll work closely with domain experts to translate complex trading logic into clear, developer-ready materials.

The engagement is full-time for the first quarter, with a planned transition to part-time afterward.

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‍Your responsibilities will include:‍

• Taking full ownership of system documentation from initial discovery to final, developer-ready deliverables;
• Working closely with the client’s domain expert to extract, structure, and formalize complex domain knowledge;
• Producing full-cycle documentation: business, technical, and software/system documentation;
• Describing system logic, data models, architectures, workflows, and interaction diagrams;
• Documenting trading-related functionality, including order lifecycle, routing logic, and risk rules;
• Detailing FIX protocol flows and integrations with banking and liquidity providers;
• Documenting A-Book / B-Book routing logic and liquidity pool management;
• Collaborating with architects and future development teams to ensure clarity and consistency;
• Maintaining high documentation standards suitable for long-term system development and scaling;
• Supporting the team during the transition from documentation to development phases.

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‍What we expect from you:‍

• Strong experience in documenting complex systems for software development teams;
• Proven ability to structure large volumes of unstructured or semi-structured domain information;
• Solid background as a Business Analyst in fintech, trading, capital markets, or similar domains (a plus, but not mandatory);
• Understanding of trading platforms, order management systems, or financial infrastructure is highly desirable;
• Ability to work with FIX protocol concepts, liquidity integrations, and trading workflows;
• High attention to detail and strong analytical thinking;
• Clear, structured, and precise communication style, both written and verbal;
• Ability to work independently and take ownership of documentation outcomes;
• Advanced English (from B2- C1+), sufficient for working with international stakeholders and technical teams.

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‍Project scope & timing:‍

• Full-time engagement for approximately one quarter;
• Transition to a support/consultative mode after the main documentation phase;
• Development is planned to start in Q3–Q4 of this year;
• The client is ready to start immediately.

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‍We offer:‍

• A high-impact role focused on shaping the foundation of a complex trading platform;
• Opportunity to work on a system similar in functionality to MT5, with full client-side ownership;
• Direct collaboration with domain experts and decision-makers;
• Clear scope, defined expectations, and meaningful influence on future development;
• Minimal bureaucracy and fast decision-making;
• Flexible engagement model aligned with project phases;
• Competitive and transparent compensation;
• Professional environment with respect for expertise and ownership.

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