Insights Implementation Analyst

John Lewis plc; Greater London; Hybrid; GBP 53,000 - 78,000; Full time

Job summary

John Lewis Partnership seeks an Insights Implementation Analyst to lead end-to-end site tagging for its Financial Services team, designing and implementing customised JavaScript tracking with cross-functional collaboration.

You will drive data QA, ensure compliant reporting, and coordinate multiple workstreams while leveraging your strong JS foundation within DI&A. This hybrid London-based role supports flexible working and growth in analytics strategy.

Qualifications

• Experience in JavaScript, jQuery, and JSON.
• Knowledge of HTML, DOM, and event handling.
• Understanding of web protocols.
• Experience in data manipulation (e.g., scraping, regex).
• Strong implementation experience: tagging strategy, QA, and tag management.
• Familiarity with GCP.
• Understanding of digital marketing channels, ad serving, and analytics.
• Proficiency in Excel and Google Sheets.
• Experience with SQL, ETL tools, and flat-file processing.

Responsibilities

• Collaborating across the Financial Services team to gather requirements and define effective analytics and tracking strategies.
• Designing, implementing, and maintaining customized JavaScript tracking code using tag management systems (e.g., Ensighten, Adobe, Google Analytics).
• Leading end-to-end tagging projects, coordinating with cross-functional teams to ensure accurate, effective cross-channel data collection.
• Performing rigorous data QA and troubleshooting to ensure reliable reporting and compliance with data security and protection policies.
• Managing multiple project workstreams, supporting partners and developers in delivering scalable technical solutions.

Skills

JavaScript

jQuery

JSON

HTML

DOM

Event handling

GCP

Digital marketing

Excel

Google Sheets

SQL

ETL tools

Data manipulation

Tools

Tag management systems

Ensighten

Adobe

Google Analytics

Job description

ABOUT THE ROLE

We are seeking a collaborative Insights Implementation Analyst to build a robust data capture environment for our Financial Services team. You will lead the end-to-end site tagging process, partnering with cross-functional teams to design and implement customized JavaScript tracking. This is an excellent growth opportunity for someone with a strong JavaScript foundation to influence our technical analytics strategy while working alongside our Data, Insights and Analytics (DI&A) team at one of the UK’s largest online retailers. In addition to your contractual pay, any time worked between 22:00 - 06:00 will attract Night Premium at a rate of £5.25 per hour. This will also apply to existing Partners who have enrolled onto Enhanced Hours Premium arrangements.

Working pattern/flexible working - The Partnership has a hybrid working approach, meaning you'll be able to work a mixture between the office and home based upon your personal needs whilst balancing the needs of the business. The John Lewis Money team has a set day per week in the office (Monday) and additional in-person attendance is required on an ad-hoc basis to attend key meetings.

Key responsibilities

• Collaborating across the Financial Services team to gather requirements and define effective analytics and tracking strategies.
• Designing, implementing, and maintaining customized JavaScript tracking code using tag management systems (e.g., Ensighten, Adobe, Google Analytics).
• Leading end-to-end tagging projects, coordinating with cross-functional teams to ensure accurate, effective cross-channel data collection.
• Performing rigorous data QA and troubleshooting to ensure reliable reporting and compliance with data security and protection policies.
• Managing multiple project workstreams, supporting partners and developers in delivering scalable technical solutions.

Essential skills/experience you’ll need

• Experience in JavaScript, jQuery, and JSON.
• Knowledge of HTML, DOM, and event handling.
• Understanding of web protocols.
• Experience in data manipulation (e.g., scraping, regex).
• Strong implementation experience: tagging strategy, QA, and tag management.
• Familiarity with GCP.
• Understanding of digital marketing channels, ad serving, and analytics.
• Proficiency in Excel and Google Sheets.
• Experience with SQL, ETL tools, and flat-file processing.

Desirable skills/experience you may have

Experience helping to migrate from Adobe to Google technologies.

Closing Date: August 26, 2026

Pay: £53,000.00 - £78,000.00

Annual Contract Type: Permanent

Hours of Work: 35

Job Level: Partnership Level 7

Where You'll Be Working: London Central Office, 1 Drummond Gate, London, , SW1V 2QQ

ABOUT THE PARTNERSHIP

We’re the largest employee owned business in the UK and home of our cherished brands, John Lewis and Waitrose. We’re not just employees, we’re Partners, driven by our purpose to build a happier world. As we look to our future, there’s never been a more exciting time to join us. We’re ruthlessly focused on being brilliant at retail. We continue to innovate, adapt and diversify. Never Knowingly Undersold on price, quality and service in John Lewis and passionately serving food-lovers in Waitrose. As Partners we all share the responsibility of ownership and in its rewards. We use our voices to contribute to our success, working together through the good and challenging times, holding true to our behaviours and treating everyone with kindness and respect. We all own making the Partnership somewhere we belong. Embracing our differences and creating an environment where we’re free to be ourselves and can THRIVE. Growing ourselves individually, and as a collective. As Partners, we make all the difference. And, we all own it.

Important points to note

It’s important to note that some of our roles are subject to pre-employment vetting (which may include DBS checks for successful candidates). If required, you’ll be informed and provided with information about vetting during the recruitment process and we encourage you to complete any vetting documents quickly to avoid delays. Any DBS checks required will be carried out by a third-party registered body and financial probity checks may also be required for some of our roles. We want all of our Partners to have a good work-life balance and we support flexible working. This might mean flexible or compressed hours, job sharing or shorter hour contracts, where possible. Please discuss this further with the hiring manager during your interview. At the John Lewis Partnership we’re not just employees; we’re co-owners, and that’s why we’re called Partners. Being a Partner means not only do we all collectively share the responsibilities of being the UK’s largest employee-owned business, but we also share in its rewards and successes. It’s this ownership model that makes the Partnership a very unique place to work.