Data Engineer

Project Freelance; Greater London; On-site; GBP 80,000 - 109,000; Full time

Job summary

LA International is seeking an experienced Data Engineer to join a hybrid London delivery team, supporting large-scale data transformation and migration initiatives. You will design, develop, and maintain DataStage pipelines, enabling data integration across source systems and collaborating with architects, analysts and business stakeholders to define data requirements and solutions.

Applicants should have strong ETL capabilities, MOSAIC experience, XML/XSLT proficiency, and Jira/Agile delivery

Qualifications

• Strong experience with DataStage Designer and ETL development.
• Knowledge of MOSAIC or data migration frameworks.
• Experience with XML and XSLT for data transformation.
• Proficient in Jira for project management.
• Experience in Agile delivery environments.

Responsibilities

• Design, develop, and maintain DataStage ETL pipelines.
• Build data integration solutions to support business and project requirements.
• Transform, cleanse, and migrate data between complex source and target systems.
• Apply MOSAIC data migration methodologies.
• Develop and maintain XML and XSLT components for data transformation activities.
• Collaborate with architects, analysts, developers, and business stakeholders to define data requirements and solutions.
• Utilise Jira for project management, sprint planning, issue tracking, and workflow management.
• Perform unit testing, system testing, and defect resolution activities.
• Execute and monitor DataStage jobs, ensuring high levels of performance, reliability, and data quality.
• Support production releases and provide troubleshooting for data-related issues.
• Contribute to continuous improvement initiatives and best practices within the data engineering function.

Skills

DataStage Designer

ETL development

Agile delivery

Stakeholder communication

Analytical problem-solving

Tools

Jira

XML

XSLT

Job description

Job title: Data Engineer

Location: London (Hybrid)

Contract Length: 12 Months

Service: Hybrid Cloud & Data

Service Area: Big Data Services

Day rate: £511.50

IR35: Inside

Overview

We are seeking an experienced Data Engineer to join a leading Hybrid Cloud & Data team, supporting large-scale data transformation and migration initiatives. The successful candidate will be responsible for designing, developing, and maintaining DataStage pipelines, ensuring the efficient extraction, transformation, and loading (ETL) of data from source systems into target data models.

Working within a collaborative delivery environment, you will play a key role in data integration, migration, testing, and deployment activities while engaging with stakeholders across technical and business teams.

Key Responsibilities

• Design, develop, and maintain DataStage ETL pipelines.
• Build robust data integration solutions to support business and project requirements.
• Transform, cleanse, and migrate data between complex source and target systems.
• Apply MOSAIC or equivalent data migration methodologies to ensure successful project delivery.
• Develop and maintain XML and XSLT components for data transformation activities.
• Collaborate with architects, analysts, developers, and business stakeholders to define data requirements and solutions.
• Utilise Jira for project management, sprint planning, issue tracking, and workflow management.
• Perform unit testing, system testing, and defect resolution activities.
• Execute and monitor DataStage jobs, ensuring high levels of performance, reliability, and data quality.
• Support production releases and provide troubleshooting for data-related issues.
• Contribute to continuous improvement initiatives and best practices within the data engineering function.

Required Skills & Experience

• Strong commercial experience with DataStage Designer and ETL development.
• Proven experience designing and maintaining complex DataStage pipelines.
• Knowledge of MOSAIC, Data Migration Methodologies, or equivalent data migration frameworks.
• Strong experience with XML and XSLT for data transformation and integration.
• Practical experience using Jira for project and issue management.
• Ability to test solutions, validate data quality, and execute DataStage jobs.
• Strong analytical and problem‑solving skills.
• Excellent communication and stakeholder management abilities.
• Experience working within Agile delivery environments.
• Proactive mindset with a commitment to continuous improvement and learning.

Desirable Skills

• Experience delivering large-scale data migration programmes.
• Knowledge of cloud-based data platforms and modern data architectures.
• Experience within enterprise-scale transformation programmes.
• Familiarity with data governance, data quality, and data lineage principles.

What's on Offer

• 12-month contract on a high-profile data transformation programme.
• Hybrid working arrangement based in London.
• Opportunity to work on complex data integration and migration projects.
• Collaborative environment alongside experienced data and cloud professionals.

LA International is an award‑winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance.

A multiple award‑winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience.

Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.