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# Backend PHP Developer (PHP/MariaDB)

- **Company:** Niche Cover Ltd
- **Location:** Halesowen, UK
- **Experience:** Experienced
- **Salary:** £35,000.0 - £40,000.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, PHP (Programming Language), Business Logic, Big Data, Databases, Data Transformation, Data Structures, Database Design, Database Queries, Dependency Injection, MariaDB, Object-Oriented Software Development, Performance Tuning, PHP Development, Software Architecture, Query Optimization, SQL Stored Procedures, Management of Software Versions, Data Processing, Backend, Git, Solid Principles, Codebase, Restful APIs
- **Published:** August 3, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=a8e6c8ec60fdb69d

## About the Role

· 4+ years commercial PHP development experience

· Experience maintaining custom-built PHP applications and legacy codebases

· Experience working with large datasets and complex business logic

· Strong understanding of software architecture and maintainable code design

PHP Requirements

· Strong object-oriented programming (OOP)

· Interfaces, inheritance, traits and abstract classes

· SOLID principles

· Dependency Injection

· Exception handling and error management

· Advanced array manipulation and data transformation

· Recursive data processing

· Working with DateTime, PDO and related core PHP classes

· Writing clean, testable and maintainable code

Database / MariaDB Requirements

· Advanced SQL query writing

· Query optimisation and performance tuning

· Understanding execution plans

· Indexes, composite indexes and key design

· Stored procedures

· Database normalisation and data modelling

· Transactions and locking concepts

· Handling large datasets efficiently

· Ability to identify and resolve database bottlenecks

Rating Engine / Business Rules

· Designing configurable business rule systems

· Building extensible calculation engines

· Translating business requirements into technical rating logic

· Versioning and maintaining business rules

· Processing complex nested data structures

· Performance-focused calculation design

· Ability to troubleshoot and validate premium calculation

Nice to Have

· Insurance industry experience

· Experience with quoting or underwriting systems

· Experience with financial calculations

· Experience with REST APIs

· Git and CI/CD pipelines

Technical Assessment

· Candidate should design and implement a configurable rating engine using PHP and MariaDB

· Exercise should demonstrate architecture, database design, rule implementation, performance considerations and testing approach

## Description

Develop, maintain and enhance a custom PHP/MariaDB rating engine responsible for calculating premiums, applying business rules, processing rating data and supporting high-volume quote generation.


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