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I am a software engineer with 18+ years of experience delivering scalable backend architectures and cloud-based solutions. I design high-availability systems, RESTful APIs, and reliable data layers, and I enjoy leading cross-functional teams to ship robust software. I thrive on improving code quality, scalability, and performance while mentoring engineers and promoting collaborative problem solving. I’m passionate about building efficient CI/CD pipelines, DevOps practices, and workflow automation. I’ve migrated services to modern PHP (PHP 8+), leveraged AWS and Docker for cost-effective, reliable deployments, and I’m always exploring AI-assisted tooling to streamline operations and boost productivity.…I am a software engineer with 18+ years of experience delivering scalable backend architectures and cloud-based solutions. I design high-availability systems, RESTful APIs, and reliable data layers, and I enjoy leading cross-functional teams to ship robust software. I thrive on improving code quality, scalability, and performance while mentoring engineers and promoting collaborative problem solving. I’m passionate about building efficient CI/CD pipelines, DevOps practices, and workflow automation. I’ve migrated services to modern PHP (PHP 8+), leveraged AWS and Docker for cost-effective, reliable deployments, and I’m always exploring AI-assisted tooling to streamline operations and boost productivity.

Rajesh Varatharajan

Programmer, Web Developer, Back-End Developer, +2

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I am a software engineer with 18+ years of experience delivering scalable backend architectures and cloud-based solutions. I design high-availability systems, RESTful APIs, and reliable data layers, and I enjoy leading cross-functional teams to ship robust software. I thrive on improving code quality, scalability, and performance while mentoring engineers and promoting collaborative problem solving. I’m passionate about building efficient CI/CD pipelines, DevOps practices, and workflow automation. I’ve migrated services to modern PHP (PHP 8+), leveraged AWS and Docker for cost-effective, reliable deployments, and I’m always exploring AI-assisted tooling to streamline operations and boost productivity.…I am a software engineer with 18+ years of experience delivering scalable backend architectures and cloud-based solutions. I design high-availability systems, RESTful APIs, and reliable data layers, and I enjoy leading cross-functional teams to ship robust software. I thrive on improving code quality, scalability, and performance while mentoring engineers and promoting collaborative problem solving. I’m passionate about building efficient CI/CD pipelines, DevOps practices, and workflow automation. I’ve migrated services to modern PHP (PHP 8+), leveraged AWS and Docker for cost-effective, reliable deployments, and I’m always exploring AI-assisted tooling to streamline operations and boost productivity.

Available to hire

I am a software engineer with 18+ years of experience delivering scalable backend architectures and cloud-based solutions. I design high-availability systems, RESTful APIs, and reliable data layers, and I enjoy leading cross-functional teams to ship robust software. I thrive on improving code quality, scalability, and performance while mentoring engineers and promoting collaborative problem solving.

I’m passionate about building efficient CI/CD pipelines, DevOps practices, and workflow automation. I’ve migrated services to modern PHP (PHP 8+), leveraged AWS and Docker for cost-effective, reliable deployments, and I’m always exploring AI-assisted tooling to streamline operations and boost productivity.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Language

English

Fluent

Work Experience

Software Consultant at SRS CodeCraft AB

January 1, 2025 - Present

Operating a software consulting firm delivering cloud-based backend architecture and development services for Sam Media BV, Amsterdam. Designing and maintaining scalable backend systems and RESTful APIs for high-traffic, distributed environments. Advising on system architecture, performance optimization, and data reliability. Building workflow automation using n8n with AI integrations to streamline operations and improve efficiency.

Lead Software Engineer at Sam Media BV

November 1, 2021 - December 1, 2024

Architected and operated high-performance backend services supporting millions of daily transactions in a distributed system. Refactored and optimized a critical billing module, eliminating overcharge issues and enhancing overall efficiency. Led a distributed DevOps team, mentoring engineers and driving best practices in clean code, testing and CI/CD pipelines. Migrated core services from PHP 7.4 to PHP 8.1, improving system performance, stability and runtime efficiency.

Senior Software Engineer at Sam Media BV

September 1, 2018 - October 1, 2021

Designed and implemented real-time data ingestion pipelines, streaming millions of transaction events into Amazon Redshift for more insightful analytics and reporting. Optimized cost reports for weekly revenue reporting with high accuracy. Contributed to tech alignment sessions, emphasizing Clean Code and Refactoring techniques to enhance team proficiency and code quality.

Senior Software Engineer at Sam Media

January 1, 2013 - September 30, 2018

Designed and implemented a modern RESTful API microservice-based backend system replacing a legacy monolithic application. Built a scalable, event-driven delivery notification system using RabbitMQ, increasing throughput and reducing latency under high-traffic conditions. Implemented AWS IAM, cross-account access, and role-based security, optimizing cloud infrastructure costs by 30% to 40%.

Senior Software Engineer at Hanodale Technologies

July 1, 2011 - January 31, 2013

Created a dynamic platform enabling seamless mobile content billing platforms using Java-based services. Worked for client Actix Sdn Bhd and was involved in system analysis and developed various case reports for KDDI project.

System Analyst at Multimedia University

August 1, 2008 - June 30, 2011

Developed campus management system for client. Customized open source Ajax Chat for MultiMedia Learning System (MMLS).

Software Engineer at KGiSL

August 1, 2006 - August 1, 2008

Built and customized open source One or Zero Helpdesk to create a Helpdesk application. Worked at KG Hospital, developing and maintaining their hospital applications like Billing and Front Office.