Senior IT/Data Analyst SQL, ETL, Big Data Gdynia

Diverse CG Sp. z o.o. Sp.k.; Gdynia; On-site; PLN 100,000 - 140,000; Full time

Benefits offered by this job

Private medical care

Co-financing for the sports card

Constant support of dedicated consultant

Job summary

Diverse CG Sp. z o.o. Sp.k. in Gdynia is seeking a Senior IT/Data Analyst to perform IT and data analysis supporting development teams. This role includes leading requirements gathering and translating business needs into structured documentation.

The ideal candidate has a minimum of 5 years in IT analysis, strong SQL skills, and experience with Big Data technologies. The position offers private medical care and support from a dedicated consultant.

Qualifications

• Minimum 5 years of experience in IT analysis or similar roles.
• Strong hands-on expertise in SQL and data-driven environments.
• Experience working in agile, cross-functional teams.

Responsibilities

• Perform IT analysis and data modelling to support development teams.
• Lead requirements gathering across multiple stakeholders.
• Translate business needs into clear documentation.

Skills

SQL

Big Data platforms (Hadoop, Hive, Impala, PySpark)

ETL/Data processing

Data testing

Data validation

Jira and Bitbucket

Data Science concepts

English communication skills

Job description

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for:

Senior IT/Data Analyst

Responsibilities:

• Perform IT analysis, investigative data analysis, system design, and data modelling to support development teams
• Lead or facilitate functional and non-functional requirements gathering, analysis, and refinement across multiple stakeholders
• Translate business needs and technical requirements into clear, structured, and understandable documentation
• Ensure alignment, transparency, and common understanding of requirements between IT and business teams
• Build a strong contextual understanding of business processes, as well as functional and technical knowledge of existing solutions
• Analyse data models and assess how data is consumed by development teams
• Verify whether data structures, data flows, and available data meet business requirements
• Support ETL/data processing, data validation, and data testing activities from an analytical perspective
• Collaborate closely with developers, architects, IT analysts, and business stakeholders
• Support agile delivery in international, cross-functional, and virtual teams
• Contribute to the design of sustainable, scalable, and value-adding data solutions

Requirements:

• Minimum 5 years of experience in IT analysis, data analysis, business analysis, or a similar role within complex data-driven environments
• Strong hands‑on expertise in SQL, including advanced querying, data analysis, query optimisation, and working with complex relational database structures
• Strong experience with Big Data platforms and technologies, including Hadoop, Hive, Impala, PySpark, and/or HQL
• Solid hands‑on experience with ETL/data processing, including loading, transforming, retrieving, validating, and analysing data
• Strong experience in data testing, data validation, data quality checks, and verifying whether data structures and outputs meet business requirements
• Strong Data Analyst skillset, including investigative data analysis, data modelling, requirements analysis, and translating data insights into clear business and technical requirements
• Good understanding of Data Science concepts and ability to apply them in data analysis, problem solving, and data-driven solution design
• Experience working with JSON data format and standardised data models such as Canonical Data Model
• Experience in defining, analysing, refining, and documenting business and technical requirements in a clear and structured way
• Experience using Jira and Bitbucket for project tracking and version control
• Strong communication skills in English, with the ability to work effectively with business stakeholders, developers, architects, and IT analysts
• Experience working in agile, international, cross-functional teams
• Proactive, structured, detail-oriented, and quality-driven approach, with the ability to work both independently and as part of a team

Nice to have:

• Finance background and/or banking experience
• Experience with AVRO data format
• DBA-related experience with DB2 and Oracle databases
• Practical experience with Python and/or Java

Offer:

• Private medical care
• Co‑financing for the sports card
• Constant support of dedicated consultant

Personal Consulting Agency (License No. 4642)