We are looking for a Senior Backend Developer (PHP/Laravel) to work on a long term freelance mission full time, fully remote for a Client in the Marking Technology Sector.Start date - ASAP - Next Monday Salary - $2,000 per month (USD) Location - fully remote, Please note, this role does not provide sponsorship.You'll join a vibrant and diverse team dedicated to excellence in digital marketing and technology. We offer a supportive, innovative environment where creativity thrives. With a focus on continuous improvement and robust connections with clients worldwide, we're more than just a team; we're a community eager to welcome our next Backend Developer RESPONSBILITIES:Backend Development - Design, develop, and maintain backend services and RESTful APIs using PHP, Laravel, and modern design patterns. Ensure clean, maintainable, and well documented code. Database Design & Optimization - Model relational databases (Postgre SQL/MS SQL Server), write optimized queries, manage migrations, and ensure data integrity, high performance, and scalability. System Architecture & Scalability - Participate in architectural discussions, build modular service layers, implement queues, caching strategies, and optimize systems for high throughput and low latency. API Integration & Documentation - Build robust API endpoints, integrate with third-party services, and maintain clear API documentation for frontend and mobile teams. Testing & Code Quality - Implement unit, integration, and functional tests using PHPUnit/Pest. Conduct peer reviews and enforce best practices in coding standards and architecture. Security & Compliance - Apply security best practices including authentication/authorization, OWASP guidelines, encryption, and data protection. Monitor and mitigate risks Performance Optimization - Profile and optimize backend performance - improving response times, database indexing, caching, and memory footprint. Dev Ops & Collaboration - Work closely with Dev Ops engineers to ensure smooth deployment pipelines (Git Hub Actions, Docker, CI/CD) and maintain reliable staging/production environments. Maintenance & Troubleshooting - Diagnose and resolve production issues, logs, and server bottlenecks with a focus on stability and continuous improvement. Continuous Learning & Team Growth - Stay updated on Laravel’s ecosystem, PHP standards, and backend technologies. Mentor junior developers and contribute to internal engineering knowledge. QUALIFICATIONS:5+ years of backend development experience Expert-level proficiency in PHP 8+ and Laravel Framework Strong understanding of RESTful API design, queues, caching, and task scheduling Experience with Postgre SQL/MS SQL Server, query optimization, and database architecture Familiarity with Redis, Web Sockets, and asynchronous processing Experience with Docker, CI/CD pipelines, and cloud environments (AWS/GCP preferred) Strong knowledge of security best practices and scalable system design Proficient with Git workflows and collaborative development Excellent problem-solving skills and attention to detail Experience with Hub Spot API is a strong plus, especially in workflow automation, CRM sync, and data integrationKEY SKILLS PHP 8+ Laravel / Lumen API Design Postgre SQL / MS SQL Server / Redis Queue Systems Docker, CI/CD Testing, PHPUnit/Pest System Design