R Developer

Project overview

We are looking for an experienced Advanced R Developer/Software Engineer to support the modernisation of complex, business-critical analytical and reporting applications.

The role will focus on upgrading existing R-based tooling onto modern platforms, reducing technical debt and ensuring established business outputs remain accurate and consistent throughout major system and code changes.

Key Responsibilities

Essential Experience

Desirable Experience

Technology Stack

R | SQL | Git/Azure DevOps | Power BI | Databricks | Python | Microsoft Power Platform | Excel

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

• Develop, maintain and refactor complex R applications and analytical tooling.
• Modernise Legacy R code and migrate solutions onto newer platforms.
• Build and maintain data transformation pipelines and reusable R packages.
• Improve code quality, maintainability, performance and engineering standards.
• Design and implement robust testing and validation approaches.
• Carry out regression testing, reconciliations and automated validation to ensure changes do not impact established outputs.
• Maintain and enhance business-critical reporting and analytical solutions.
• Redesign reporting logic to support evolving business and regulatory requirements.
• Work with data and reporting stakeholders to ensure continuity and accuracy of outputs.
• Support version control, CI/CD and modern software engineering practices.
• Expert-level commercial experience developing applications and solutions in R.
• Strong software engineering background, including production-grade coding practices.
• Experience refactoring and modernising complex or Legacy R applications.
• Strong experience with data transformation pipelines and R package development.
• Experience designing automated testing, regression testing and validation frameworks.
• Strong understanding of data modelling and analytical reporting solutions.
• Experience working with SQL and version control tools such as Git/Azure DevOps.
• Ability to work independently within complex, highly controlled environments.
• Experience with Databricks and scalable data engineering or analytics architectures.
• Power BI and data visualisation experience.
• Python development experience.
• Microsoft Power Platform exposure.
• Strong Excel capability.
• Experience working with regulatory, financial or other highly controlled reporting environments.

Project details

• Start: ASAP
• Duration: 6 Months
• Location: London, UK, GB
• Rate: 50-75 EUR/h