Junior Finance Master Data Analyst

Methodfi; Greater London; Hybrid; GBP 60,000 - GBP 80,000; Full time

Job summary

A digital marketing agency is looking for a Data Management Specialist to ensure the accuracy, integrity, and control of finance master data. Responsibilities include managing data across ERP systems like Sage, data cleansing, and supporting financial operations. Candidates should have at least one year of data management experience, strong Excel skills, and an interest in finance data. The role offers a gross monthly salary between GBP 2,500–2,900 and flexible working opportunities.

Benefits

Custom Work Environment

Growth opportunities

Family support policies

Qualifications

• At least one year of experience in data management, with experience in financial or ERP master data.
• Ability to assess data quality and identify inconsistencies.
• Interest in finance-related data and ERP systems.

Responsibilities

• Manage finance master data across ERP platforms and finance systems.
• Deliver accurate and reliable data for financial operations.
• Ownership of master data creation and maintenance.

Skills

Data management expertise

Proficiency in Excel

Analytical skills

Problem-solving abilities

Tools

Sage

ERP systems

Excel

Job description

At Jellyfish, we believe in the power of diverse perspectives and inclusive collaboration. We welcome individuals who excel in collaborative, varied teams and value the unique contributions that each person brings to the table.

Jellyfish is a global digital marketing agency; a unique fusion of tech enthusiasts, creative minds, and media and data experts all united to empower our clients along their digital journey. Our commitment to embracing diverse perspectives fuels our innovation and strategies that challenge the status quo, reinvent media activation, and craft influential stories for our global clients and their customers. Join us in shaping a future where business growth and personal fulfilment go hand in hand.

Job Description

Reporting to the Finance Director, you’ll play a key role in ensuring the accuracy, integrity, and control of user access and master data across Jellyfish’s finance systems. Working closely with the Finance Team in London, you’ll maintain and improve our ERP systems, with an initial focus on reviewing and cleansing key finance master data sets to deliver accurate and fully controlled data that underpins our financial operations.

Please note that this will start as a six-month full-time fixed-term position, with a gross monthly salary of GBP 2,500–2,900.

There is potential for the role to evolve beyond the initial six months. You may have the opportunity to help shape the position, collaborate with the Operations Team on cross-departmental data challenges, and possibly continue in a part-time indefinite capacity in the future.

Your primary responsibilities will include:

• Analyse and manage finance master data across Jellyfish’s Enterprise Resource Planning (ERP) platforms and finance systems, including Sage, the Treasury Management System (TMS), and Jellyfish Buy, with a strong focus on data quality, accuracy and control.
• Identify, extract, cleanse, validate, and maintain key finance data sets, delivering accurate, refreshed, and reliable data to support financial operations and reporting.
• Own master data creation and maintenance in Sage (including customers, vendors, and bank accounts), ensuring robust controls and consistent processes.
• Design and maintain processes for the ongoing governance, cleansing, and routine maintenance of finance master data.
• Manage user access across finance systems, including onboarding and offboarding, maintenance of user groups, and quarterly user access audits to ensure appropriate access rights.

Qualifications

• At least one year of experience in data management, with hands‑on involvement in financial or ERP master data.
• Ability to assess data quality and validation, identify inconsistencies, and ensure accuracy across data sets.
• Proficiency in Excel or similar spreadsheet tools, including pivot tables, VLOOKUPs and formulas.
• An interest in finance‑related data and ERP systems.
• You generate unique ideas and experiment with new methods and technologies to streamline and automate processes.
• When faced with a problem, you collaborate with the appropriate people to evaluate different options and find practical solutions.

Note: We emphasise skills, expertise and behavioural attributes over years of experience and traditional degrees. If you want to join our collaborative team, we invite you to apply today with your resume in English.

Additional Information

Join Jellyfish and experience a workplace where we prioritise your growth, celebrate your contributions, and empower you to tailor your work environment to suit your needs.

💫 Custom Work Environment: Work remotely for up to 60% of your days and shape your day between 8am. and 6:30pm with flexible working hours.

📈 Growth, Your Way: Accumulate one paid day each month (2 hours per week) for self‑development and access to Jellyfish Learn.

👪 Family Support: Enjoy 14 weeks of paid leave for primary caregivers and 4 weeks of paid leave for secondary caregivers. We also provide £1000 (or equivalent) towards courses for returning primary caregivers to support your transition back into work.

Unfortunately, there has been an increase in fake recruiters impersonating Jellyfish and unlawfully using our brand name. If you are unsure if an email with a job offer you have received is genuinely from Jellyfish, or if you suspect any fraudulent activity, please report it to [e-mail].