Leap29
Data Engineer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Data Engineer with a focus on data modelling, mapping, and transformation. It offers a hybrid work location, requires UK nationality, and involves expertise in XML, JSON, and ETL tools. Contract length and pay rate are unspecified.
🌎 - Country
United Kingdom
💱 - Currency
£ GBP
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💰 - Day rate
448
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🗓️ - Date
October 23, 2025
🕒 - Duration
Unknown
-
🏝️ - Location
Hybrid
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📄 - Contract
Unknown
-
🔒 - Security
Yes
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📍 - Location detailed
United Kingdom
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🧠 - Skills detailed
#Data Integration #"ETL (Extract #Transform #Load)" #Data Management #Talend #UML (Unified Modeling Language) #Data Quality #Big Data #JSON (JavaScript Object Notation) #Business Analysis #Security #Data Engineering #Data Transformations #Metadata #NiFi (Apache NiFi) #Cloud #Data Processing #Boomi #XML (eXtensible Markup Language) #Compliance #Apache NiFi #Databases #Data Mapping #Informatica #Documentation #SSIS (SQL Server Integration Services) #Data Analysis #Data Architecture
Role description
We are seeking a skilled Subject Matter Expert (SME) & Data Engineer with a strong focus on data modelling, mapping, and transformation to join our Big Data Services team within the Hybrid Cloud & Data service line. This role will involve collaborating with cross-functional teams to define, implement, and validate data integration and transformation requirements across a range of structured and semi-structured data sources.
Key Responsibilities
• Analyse source and target data formats and structures (e.g., databases, XML, JSON, CSV, EDI) to define and document accurate and effective data mappings.
• Develop and maintain data mapping specifications, transformation logic, and integration rules based on business and technical requirements.
• Work closely with data architects, domain experts, and business analysts to ensure semantic alignment and consistency between systems.
• Validate mapping outputs and troubleshoot discrepancies or issues in data transformations.
• Create and maintain documentation to support data traceability, governance, and reusability.
• Ensure all data processing activities comply with relevant data quality, security, and privacy standards.
Required Skills & Experience
• UK National (must be eligible for relevant security clearance).
• Proven experience in roles involving data mapping, transformation, or integration (e.g., data analyst, technical business analyst, data engineer).
• Strong hands-on expertise with data formats including XML, JSON, CSV, EDI, XLSX.
• Ability to interpret complex data structures and translate them into robust mapping and transformation specifications.
• Strong attention to detail and ability to manage data-related documentation for governance and compliance.
Nice to Have
• Experience with ETL or data integration tools such as Informatica, Talend, Apache Nifi, SSIS, or Boomi.
• Familiarity with data mapping documentation methodologies or modelling tools such as Excel-based mapping specs, BPMN, or UML.
• Understanding of data architecture principles and metadata management.
We are seeking a skilled Subject Matter Expert (SME) & Data Engineer with a strong focus on data modelling, mapping, and transformation to join our Big Data Services team within the Hybrid Cloud & Data service line. This role will involve collaborating with cross-functional teams to define, implement, and validate data integration and transformation requirements across a range of structured and semi-structured data sources.
Key Responsibilities
• Analyse source and target data formats and structures (e.g., databases, XML, JSON, CSV, EDI) to define and document accurate and effective data mappings.
• Develop and maintain data mapping specifications, transformation logic, and integration rules based on business and technical requirements.
• Work closely with data architects, domain experts, and business analysts to ensure semantic alignment and consistency between systems.
• Validate mapping outputs and troubleshoot discrepancies or issues in data transformations.
• Create and maintain documentation to support data traceability, governance, and reusability.
• Ensure all data processing activities comply with relevant data quality, security, and privacy standards.
Required Skills & Experience
• UK National (must be eligible for relevant security clearance).
• Proven experience in roles involving data mapping, transformation, or integration (e.g., data analyst, technical business analyst, data engineer).
• Strong hands-on expertise with data formats including XML, JSON, CSV, EDI, XLSX.
• Ability to interpret complex data structures and translate them into robust mapping and transformation specifications.
• Strong attention to detail and ability to manage data-related documentation for governance and compliance.
Nice to Have
• Experience with ETL or data integration tools such as Informatica, Talend, Apache Nifi, SSIS, or Boomi.
• Familiarity with data mapping documentation methodologies or modelling tools such as Excel-based mapping specs, BPMN, or UML.
• Understanding of data architecture principles and metadata management.
