Data Engineer

3761 Barclays - BX - UK; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Barclays is seeking a Data Engineer within our Markets Post trade technology division in London to deliver a set of enterprise data strategy outcomes across the end-to-end lifecycle.

You will build and maintain data pipelines, data warehouses and data lakes to ensure data is durable, complete and secure, while collaborating with data scientists to deploy machine learning models and influence data-driven decisions.

Qualifications

• Experience in ETL development and end-to-end data pipelines.
• Strong SQL, data modelling and data warehousing skills.
• Experience with data integration from multiple enterprise sources.

Responsibilities

• Build and maintain data pipelines, data warehouses and data lakes.
• Ensure data accuracy, accessibility and security across systems.
• Collaborate with data scientists to deploy machine learning models.
• Design algorithms for processing large data volumes.
• Lead or support a team and set objectives.

Skills

ETL Development

SQL & Data Modelling

Data Integration

Cloud & Data Lakes

Data Quality & Testing

Financial Data Domain

Job description

Job Description

Purpose of the role To build and maintain the systems that collect, store, process, and analyse data, such as data pipelines, data warehouses and data lakes to ensure that all data is accurate, accessible, and secure.

Accountabilities

Build and maintenance of data architectures pipelines that enable the transfer and processing of durable, complete and consistent data.

Design and implementation of data warehoused and data lakes that manage the appropriate data volumes and velocity and adhere to the required security measures.

Development of processing and analysis algorithms fit for the intended data complexity and volumes.

Collaboration with data scientist to build and deploy machine learning models.

Assistant Vice President Expectations

To advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness.

Collaborate closely with other functions/ business divisions.

Lead a team performing complex tasks, using well developed professional knowledge and skills to deliver on work that impacts the whole business function.

Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes.

If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are:

• L – Listen and be authentic
• E – Energise and inspire
• A – Align across the enterprise
• D – Develop others

OR for an individual contributor, they will lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will identify new directions for assignments and/ or projects, identifying a combination of cross functional methodologies or practices to meet required outcomes.

Consult on complex issues; providing advice to People Leaders to support the resolution of escalated issues.

Identify ways to mitigate risk and developing new policies/procedures in support of the control and governance agenda.

Take ownership for managing risk and strengthening controls in relation to the work done.

Perform work that is closely related to that of other areas, which requires understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.

Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategy.

Engage in complex analysis of data from multiple sources of information, internal and external sources such as procedures and practises (in other areas, teams, companies, etc).to solve problems creatively and effectively.

Communicate complex information. 'Complex' information could include sensitive information or information that is difficult to communicate because of its content or its audience.

Influence or convince stakeholders to achieve outcomes.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right.

They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Data Engineer Role

Join us as a Data Engineer within our Markets Post trade technology division where you will be accountable for delivering a set of enterprise, non-negotiable data strategy outcomes across the end-to-end lifecycle.

Requirements

To be successful in this role you will need:

• Data Engineering & ETL Development: Strong hands‑on experience in ETL development, data transformation, and end-to-end pipeline workflows (ingestion → processing → consumption) including structured dataset creation and analytics outputs.
• SQL, Data Modelling & Data Warehousing: Solid database and querying skills with expertise in SQL, joins, and large-scale data modelling for warehouse-style analytics and dataset integration.
• Data Integration & Distributed Systems: Experience integrating multiple enterprise data sources including API/feed handling and working with distributed data environments.

Some other valued skills may include:

• Cloud & Data Lake Fundamentals: Exposure to AWS, data lake architectures, and catalogue‑based querying environments, supporting scalable data processing.
• Data Quality, Testing & Debugging: Strong capability in debugging pipelines, resolving data issues, validating datasets, and working with data quality frameworks and controls.
• Financial Data Domain & Collaboration: Understanding of financial datasets with ability to collaborate across teams and stakeholders to deliver data solutions.

You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills.

Location

This role will be based in our London office

About Us

Our Work Experience is the combination of everything that's unique about us: our culture, our core values, our company meetings, our commitment to sustainability, our recognition programs, but most importantly, it's our people.

Our employees are self-disciplined, hard working, curious, trustworthy, humble, and truthful.

They make choices according to what is best for the team, they live for opportunities to collaborate and make a difference, and they make us the #1 Top Workplace in the area.