Senior Business & Data Analyst - API & Data Modeling

DCG Poland; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Private medical care

Co-financing for the sports card

Dedicated consultant support

Job summary

DCG Poland is seeking a Business / Data Analyst in Warsaw to align business requirements with data models and API contracts. You will translate needs into technical designs, support API definitions, and collaborate across teams.

The role emphasizes data transformation, canonical data models, validation examples, and engagement in quarterly planning. Fluency in English is required, with ongoing support from a dedicated consultant.

Qualifications

• 5+ years of professional experience in business analysis, data analysis or a similar role.
• Strong experience in data analysis, data modelling and data mapping.
• Ability to translate business rules into concrete examples and clear acceptance criteria.
• Experience working across business, consumer and source-system teams.
• Good understanding of custody positions, subpositions, reservations and corporate actions.
• Experience working with data formats and transformation technologies including XML, XSLT, JSON and AVRO.
• Ability to understand system flows, dependencies and integration requirements.
• Fluency in English (both written and spoken).

Responsibilities

• Analyse and align business requirements, data models, system flows and dependencies.
• Translate business needs into clear technical designs, delivery tasks and acceptance criteria.
• Design and document services and API contracts within and around the STO Domain API.
• Support a contract-first approach to API definition in cooperation with producers, particularly the safekeeping system.
• Define data mappings, transformation rules and the canonical data model.
• Establish clear business rules together with valid request and response examples.
• Raise, clarify and coordinate requirements during quarterly and PI planning.
• Collaborate across business, consumer and source-system teams to ensure consistent implementation.

Skills

Business analysis

Data analysis

Data modelling

Data mapping

API design

XML

JSON

Tools

XSLT

AVRO

JSON

Job description

DCG Poland is seeking a Business / Data Analyst in Warsaw to align business requirements with data models and API contracts. You will translate needs into technical designs, support API definitions, and collaborate across teams.

The role emphasizes data transformation, canonical data models, validation examples, and engagement in quarterly planning. Fluency in English is required, with ongoing support from a dedicated consultant.