Sr. PHP Developer

JOB DESCRIPTION Keystone AI | Senior Developer: PHP WHO WE ARE At Abacus, we specialize in technology, outsourcing, and people solutions, bringing nearly 40 years of experience shaped alongside the organizations we support. As a global professional services leader, our focus remains on providing bespoke solutions that enable organizations to create the future of business and embrace change for sustainable growth, powered by a global team of over 5,000 people. WHAT WE DO Across digital transformation, emerging technologies, SAP enterprise solutions, outsourcing, and human capital, we support organizations in building environments that operate effectively and scale with the business. Today, this extends to more than 1,500 enterprise clients, where the focus remains on creating systems that are not only functional, but ready to adapt and evolve over time. POSITION OVERVIEW Keystone AI is seeking an experienced Senior PHP Developer to lead the design, development, enhancement, and support of applications and integrations on the MADAPI platform. The successful candidate will bring strong PHP expertise combined with API development, system integration, and modern software engineering practices. This role requires a technically strong professional who can build scalable backend services, drive engineering best practices, and mentor the next generation of developers. KEY RESPONSIBILITIES Development & Engineering Design, develop, test, and maintain robust PHP-based applications on the MADAPI platform. Build and enhance RESTful APIs, microservices, and backend integrations. Write clean, secure, scalable, and maintainable code aligned to coding standards. Optimise application performance, reliability, and database efficiency. Troubleshoot production issues and provide thorough root-cause analysis. Platform Delivery Work closely with Product Owners, Business Analysts, Architects, and DevOps teams to deliver platform enhancements. Participate in sprint planning, estimations, backlog refinement, and retrospectives. Ensure successful deployments across development, test, and production environments. Support platform modernisation and technical debt reduction initiatives. Leadership & Mentorship Provide technical leadership within the development squad. Mentor junior and mid-level developers through code reviews and hands-on coaching. Promote engineering best practices including CI/CD, automated testing, and secure coding standards. Governance & Quality Conduct peer reviews and enforce development standards across the team. Ensure applications meet security, compliance, and performance requirements. Maintain technical documentation and solution design artefacts. SKILLS & EXPERIENCE Technical Skills 7+ years of PHP development experience in enterprise or platform environments. Strong experience with modern PHP frameworks such as Laravel, Symfony, or CodeIgniter. Solid understanding of REST APIs, JSON, OAuth, JWT, and API integrations. Experience with relational databases including MySQL, PostgreSQL, or Microsoft SQL Server. Proficiency with version control using Git and collaborative development workflows. Hands-on experience with CI/CD pipelines and DevOps tooling. Experience with Azure Cloud services and cloud-native development practices. Experience using agentic development tools such as GitHub Copilot or Claude Code. Understanding of containerisation using Docker is advantageous. Strong debugging, performance tuning, and root-cause analysis capabilities. Preferred Experience Experience working on API gateway or middleware platforms. Exposure to cloud platforms such as AWS, Microsoft Azure, or Google Cloud Platform. Telecom or enterprise systems integration experience. Experience with event-driven architecture and message queues. QUALIFICATIONS Bachelor's degree in Computer Science, Information Technology, or a related field. Relevant certifications in PHP, cloud platforms, or Agile delivery are advantageous. WHAT WE OFFER Competitive compensation package commensurate with experience. Exposure to large-scale, enterprise-grade platform and API projects. A collaborative, innovation-driven, and growth-oriented work environment. Continuous learning opportunities and access to professional development resources. Opportunity to work with a globally recognised professional services leader. Keystone AI | Enabling Organisations to Create the Future of Business Originally posted on Himalayas