Telefonicatech

ETL Test Engineer

London, England, United Kingdom · Remote (restrictions not stated) · Full-time

Apply on the employer’s site ↗See how well you match this job

You apply directly with the employer. ROLIVA does not submit applications from this page and is not the employer.

About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerTelefonicatech
LocationLondon, England, United Kingdom
Work styleRemote (restrictions not stated)
Employment typeFull-time
Employer posted5 months ago

The Data Quality Analyst is accountable for the design and operational execution of the Data Quality framework, as well as well as coordination across all technical and business resources throughout the test. Responsibilities include creation and maintenance of quality assurance testing deliverables and assisting in delivery activities.

GENERAL RESPONSIBILITIES

Analysing Business requirement for completeness and accuracy
Analysing Business requirements against the technical specifications (data modelling)
Creating high level test scenarios
Creating manual test cases
Developing validation scripts for automated execution, while creating actionable data quality reports that measure trends over time.
Developing yaml code to create DevOps pipelines and maintain them
Analysing test outputs and reporting defects
Working closely with Business Analysts, Data Analysts/Scientists, Development, and Product Owners to ensure data housed in multiple source systems is valid and accurate.
Participating in defect triage and sprint ceremonies
Candidate will be involved in both automated and manual ETL testing across multiple scrum teams, although most of the testing will be automated
Participation in architecting the logical design of data quality practices with the technical team, including DQ design and specifications, data modelling, and documentation of logical processing flows.
Agile testing.
Developing documents and implementing data quality standards.
Regularly reviewing and interpreting QA results and findings with limited support from senior leadership.

Show full description

Technical Skills

Azure Data bricks
Azure ADF
Azure DevOps
SQL
DAX
Javascript/Typescript
Python/Pyspark
YAML
Powershell

Key Skills -

Must have – Experience in test management tools – Devops, JIRA
Must have – Experience in source control repositories – git (github and bitbucket)
Nice to have – Experience in Azure Databricks, Python/Pyspark,YAML and SQL queries - ability to analyse data in a Data Warehouse environment.
Nice to have – Experience in understanding and writing DAX queries.
Nice to have - worked on testing reports (Power BI/ Tableau)
Good understanding of the framework of ETL
Experience working in a Scrum / Agile environment.

Minimum Requirements:

At least 5+ years related experience or equivalent combination of education and Consulting experience.
At least 5 years’ experience in large scale system implementation efforts following a standard software development lifecycle approach (scrum desired).
Experience with ETL testing
Ability to automated ETL tests using Pyspark/Python
Ability to write manual test cases from business requirements and technical specifications.
Ability to create data bricks notebooks to automate the manual tests.
Ability to create and run Test pipelines and interpret the results.
Ability to test complex reports and write queries to check each metrics.
Strong oral and written communications skills.

At Telefónica Tech, we believe inclusion is the bridge that empowers everyone to be their authentic selves. We celebrate and respect our differences because diversity drives innovation and makes us stronger.

Be yourself with us, and feel that you belong.

We welcome applicants from all backgrounds and identities regardless of age, disability, gender reassignment, marital or civil partnership status, pregnancy or maternity, race, religion or belief, sex, and sexual orientation.

We are also committed to equity, accessible hiring practices, and creating an inclusive culture through many means including TogetHer (Women's network) and our Employee Resource Groups which include Diversity and Inclusion, Telefónica Tech Pride, Neurodiversity, ELEVATE (African and Caribbean heritage network), and Sustainability.

We don’t believe hiring is a tick box exercise, so if you feel that you don’t match the job description 100%, but would still be a great fit for role, please get in touch.

See how well you match this job Apply on the employer’s site ↗

Check your resume against this job Free, no sign-up. Nothing you paste is stored.

Staying safe while you apply

Never pay to apply, interview or accept an offer. ROLIVA never asks you for payment to apply to a job.
Apply only through the official “Apply on the employer’s site” button, on the employer’s own site, and check that a recruiter’s email uses that employer’s own domain rather than a free email address.
Be cautious of an offer made with no real interview, or pressure to decide quickly or share financial details early.

Does something look wrong with this listing? Use “Report broken link” in the role details, or read ROLIVA’s full job-safety guidance ↗.

Preparing for this role with ROLIVA

Check the fit.
Compare the requirements with the experience you have confirmed, including gaps.
Prepare honestly.
Build interview stories and application drafts from your own evidence.
Keep track.
Save the role and record your own application status and follow-ups.

Create a free workspace or log in.