Excel Modeller

JR United Kingdom; Northampton; On-site; GBP 30,000 - 45,000; Full time

Job summary

A leading company in software development is seeking a detail-focused Excel Modeller to build structured, logic-driven workbooks as part of their growing SaaS platform. This role requires advanced Excel skills and the ability to manage the entire workbook lifecycle, from design to documentation, all while ensuring clarity and maintainability. If you're passionate about crafting powerful, formula-based tools, we want to hear from you!

Qualifications

• Deep expertise in Excel with advanced formulas and arrays.
• Strong logical reasoning and attention to detail.
• Ability to manage workload independently.

Responsibilities

• Designing advanced Excel workbooks from scratch to model complex business rules.
• Writing and optimising formula-based logic (nested IFs, arrays, lookups).
• Documenting logic flows and workbook structures for handover and audit.

Skills

Advanced formulas

Logical reasoning

Attention to detail

Data validation

Documentation skills

Job description

We're looking for a detail-focused Excel Modeller to take ownership of building structured, logic-driven workbooks that act as calculation engines behind a growing SaaS platform.

This role is ideal for someone who enjoys designing complex formula flows, structuring Excel workbooks for long-term use, and translating business rules into reliable, reusable tools - all without relying on macros or VBA.

You'll work independently on the full lifecycle of each workbook from shaping requirements and building formulas, through to documentation, testing and optimisation.

What You’ll Be Doing

• Designing advanced Excel workbooks from scratch to model complex business rules
• Writing and optimising formula-based logic (nested IFs, arrays, lookups, etc.)
• Structuring models for clarity, maintainability, and performance
• Collaborating with product and technical teams to refine requirements
• Documenting logic flows and workbook structures for handover and audit
• Creating reusable templates and applying consistent design standards
• Supporting and iterating on existing models over time

What We’re Looking For

• Deep expertise in Excel: advanced formulas, arrays, data validation
• Strong logical reasoning and attention to detail
• Ability to independently manage workload and deadlines
• Clear documentation and communication skills
• Bonus: experience building tools for others to use or turning business rules into models
• Nice to have: familiarity with modelling, decision trees, or rules engines
• No VBA or coding required — this is all about clean, powerful formula-based logic

Who This Suits

You might have worked as a Financial Modeller, Pricing Analyst, Reporting Specialist, or Excel Consultant. Or you may simply be someone who has always taken Excel further than most — building logic-driven tools and structured models that others rely on.

If you take pride in crafting smart, maintainable workbooks and want to contribute to a real product behind the scenes, we’d love to hear from you.

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Created on 26/06/2025 by JR United Kingdom