Senior CodeIgniter Developer

Senior CodeIgniter Developer (CodeIgniter 4 | DB Optimization | Queues) Location: Bangalore, India (Hybrid Work Model) Company: FLYONIT Infrastructure Experience: 10+ Years About Us At FLYONIT Infrastructure , we are committed to building robust, scalable, and high-performance digital solutions. We work with cutting-edge technologies and enterprise-level clients, ensuring our products meet the highest standards of performance, security, and reliability. We are currently seeking a Senior CodeIgniter Developer with deep expertise in CodeIgniter 4 , database performance optimization , and system integrations to join our dynamic team in Bangalore under a hybrid work model . Role Overview We’re looking for a seasoned backend engineer who can design and optimize APIs, queries, and authentication systems in a high-performance environment. The ideal candidate should have a strong foundation in PHP (CodeIgniter 4 framework) , PostgreSQL/MySQL , queue mechanisms , and third-party integrations using APIs. You will collaborate closely with our product, DevOps, and infrastructure teams to build scalable, secure, and high-performing applications. Key Responsibilities Develop, optimize, and maintain backend applications using CodeIgniter 4 . Implement and manage queue mechanisms for asynchronous and scalable systems. Design and optimize SQL queries for PostgreSQL and MySQL , using query profiling , CTEs (Common Table Expressions) , and query builders . Analyze and enhance API performance through caching, indexing, and query optimization. Implement authentication mechanisms including SAML , SSO , and API key-based integrations . Securely integrate third-party tools or platforms using API keys and secrets. Apply filters in CodeIgniter 4 for middleware-level functionalities such as authentication and request validation. Design and maintain stored procedures for performance and data integrity, with a clear understanding of when to use raw SQL vs query builder . Participate in code reviews , system design , and performance tuning . Troubleshoot complex technical issues and suggest long-term, scalable solutions. Required Skills & Experience 10+ years of hands-on experience in PHP development , with strong focus on CodeIgniter (CI 4) . Expertise in PostgreSQL and MySQL , including indexing, joins, and query optimization. Proven experience with queue systems (e.g., RabbitMQ, Redis, Beanstalkd, or similar). Strong understanding of authentication protocols – SAML , OAuth2 , SSO , etc. Experience with query profiling tools and database performance analysis. Strong in stored procedures , query builders , and raw SQL — and understanding when to use each. Hands-on experience with third-party API integrations and secure authentication management . Strong analytical and logical reasoning abilities, including solving algorithmic or situational problems. Excellent communication skills and a collaborative mindset. Good to Have Knowledge of microservices architecture and API gateway management . Experience with CI/CD pipelines and Docker-based deployments . Familiarity with performance monitoring tools and profiling libraries .  You should also understand the use of CTEs, query profiling, filters in CI 4, and performance tuning strategies. Why Join Us? Hybrid work model: balance your time between office collaboration and remote flexibility. Opportunity to work on challenging enterprise-level projects . Collaborative and growth-oriented culture. Competitive salary and benefits package. Be part of a forward-thinking team driving innovation in infrastructure technology.