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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal PHP/Phalcon Software Engineer - **Company:** WorldPay - **Location:** Cincinnati, OH, United States - **Experience:** Expert - **Salary:** $150,300.0 - $226,950.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), PHP (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Unit Testing, Microsoft Azure, Databases, Relational Databases, Database Queries, Software Debugging, DevOps, Web Development, Payment Systems, Laravel, PostgreSQL, Model View Controller (MVC), Cloud Services, Software Engineering, Symfony, Web Application Frameworks, Software Repository, PHP Frameworks, ReactJS, Code Comments, Git, AngularJS, Information Technology, Software Coding, Restful APIs, Software Version Control, Api Management, Microservices - **Published:** September 12, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=182175741567e9f8 ## About the Role * Bachelor's degree in computer science, software Engineering, or a related field (or equivalent work experience). * 10+ years relevant software engineering experience. * Proven experience as a Phalcon Developer or PHP developer with a strong willingness to learn Phalcon. * Proficiency in PHP, PostgreSQL or other relational databases, and basic knowledge of web development technologies (JavaScript and Angular). * Familiarity with MVC (Model-View-Controller) architecture and Phalcon's MVC framework. * Familiarity with Microservices architecture. * Experience with RESTful API development and consumption. * Strong problem-solving skills and attention to detail. * Familiarity with cloud services (e.g., AWS, Azure) and DevOps practices. * Understanding of continuous integration and continuous deployment (CI/CD) pipelines. * Excellent communication and teamwork skills. * Ability to work independently and meet project deadlines. It's a bonus if you have * Experience with additional PHP frameworks (e.g. Laravel, Symfony) is a plus. * Experience with web development frameworks (e.g. Angular, React) is a plus. * Demonstrated experience in implementing online payment systems at scale, with a comprehensive understanding of high-volume payment processing workflows and technologies. ## Description As a Principal PHP/Phalcon Software Engineer, you will be responsible for designing, developing, and maintaining API applications using the Phalcon PHP framework. You will work closely with the development team to create efficient and scalable API solutions that meet the project's requirements and quality standards., * Develop API applications using the Phalcon PHP framework, ensuring high performance and security. * Continuously monitor and optimize the application for speed, scalability, and efficiency. * Create technical documentation, including code comments, project documentation, and knowledge transfer materials. * Write clean, well-structured, and maintainable code following best practices and coding standards. * Conduct unit testing, identify and resolve bugs, and perform debugging to ensure the reliability and stability of the application. * Design and implement database schemas, interact with databases using Phalcon's ORM, and optimize database queries for performance. * Use version control systems (e.g., Git) to manage code repositories and collaborate effectively with team members. * Work closely with cross-functional teams, including 3rd party integration developers, front-end developers, and project managers, to deliver high-quality API applications. ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Phel, a native Lisp for PHP](https://www.wearedevelopers.com/videos/791-phel-a-native-lisp-for-php) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ## Related Articles - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Software Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/213-software-developer-salary-in-austria-2023) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023)