Senior PHP Application Engineer

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

Good to Have

You should also understand the use of CTEs, query profiling, filters in CI 4, and performance tuning strategies.

Why Join Us?