I

ilayaraja Kasirajan

Director of Engineering

Dubai, United Arab Emirates24 yrs 1 mo experience

Key Highlights

  • Led digital transformation increasing platform performance by 90%.
  • Achieved 99% system uptime through architectural revamp.
  • Scaled engineering teams across 6+ countries.
Stackforce AI infers this person is a technology leader in E-commerce and SaaS industries, driving engineering excellence and digital transformation.

Contact

Skills

Core Skills

Engineering LeadershipAws

Other Skills

AJAXAgile MethodologiesAmazon S3Amazon Web Services (AWS)AnsibleApacheApache KafkaBitbucketCassandraDocker ProductsEJBElastic Stack (ELK)ElasticSearchGitGitActions

About

Proven technology leader with extensive experience driving engineering excellence, digital transformation, and scalable architectures across e-commerce, travel tech and SaaS platforms. Adept at aligning technology with business strategy, optimizing cloud infrastructure, and leading global engineering teams to accelerate innovation and revenue growth. Strong expertise in full- stack development. Led high-impact transformations at Cleartrip, Paytm, and Mumzworld, including cloud cost reductions (25%), system availability improvements (99%), and microservices adoption. Expertise in B2C, B2B, Internet Marketplaces, and SaaS platforms, delivering scalable, cost-effective, and revenue-driven solutions. 🚀 Key Achievements: ✅ Increased platform performance by 90% by leading a company-wide digital transformation from legacy Magento to a headless commerce architecture. ✅ Optimized AWS infrastructure, reducing cloud spending by 25% while enhancing reliability and scalability. ✅ Boosted transactions by 10% through seamless integrations with Checkout.com and Tamara payment providers. ✅ Scaled engineering teams across 6+ countries, fostering a high-performance remote-first culture. ✅ Achieved 99% system uptime and 90% cache hit ratio at Paytm by revamping flight search architecture. ✅ Reduced recommendation engine costs by 30% using Google AI and Elasticsearch while improving personalized search results. ✅ Implemented squad-based agile structure, increasing release velocity and engineering efficiency. Technology Leader | Scaled High-Growth E-Commerce, Travel Tech & SaaS Platforms | Driving Innovation & Engineering Excellence

Experience

24 yrs 1 mo
Total Experience
3 yrs 3 mos
Average Tenure
1 yr 1 mo
Current Experience

Clubhub.ai

Director of Engineering

May 2025 – Present · 1 yr 1 mo · Dubai, United Arab Emirates · Remote

  • Building Clubhub vacation club management platform—empowering travel businesses with configurable booking, inventory, and financial tools. Focused on delivering seamless hotel and flight integrations to unify travel experiences. Driving scalable, developer-friendly solutions for modern travel brands.

Mumzworld.com

Head of Engineering

Jun 2023 – Oct 2024 · 1 yr 4 mos · Dubai, United Arab Emirates · On-site

  • Led engineering at Mumzworld.com, managing its e-commerce platform across web, mobile, and app channels. Overseeing globally distributed teams, technology roadmaps, and cross-functional collaboration to align tech with business goals. Driving platform re-architecture, microservices development, and performance optimization. Ensuring transparency through regular stakeholder reviews while automating processes to enhance efficiency. Actively involved in hiring, resource planning, performance management, and cost optimization.
  • 🚀 Key Achievements:
  • ✅ Architected & led the transition from Magento 1.x to 2.x, implementing a headless commerce solution that enhanced site speed by 20% and stability.
  • ✅ Designed microservices architecture for catalog & core data separation, reducing API response times from 3 seconds to under 200ms.
  • ✅ Spearheaded payment integrations (Checkout.com, Tamara), boosting transactions by 10%.
  • ✅ Partnered with DevOps to reduce AWS costs by 25%, optimizing infrastructure performance.
  • ✅ Reduced recommendation engine costs by 30% using Google AI.
  • ✅ Saved USD 70,000 annually by consolidating two Elasticsearch data sources.
  • ✅ Implemented squad-based agile deployment framework, improving release velocity and responsiveness.
  • ✅ Managed technology budget, delivering cost-effective solutions without compromising innovation
Engineering LeadershipNode.jsPHPAmazon Web Services (AWS)React.jsNext.js+4

Twentyfive

VP of Engineering

Jun 2021 – May 2023 · 1 yr 11 mos · Singapore · On-site

  • Led engineering at Perromart Singapore (https://perromart.com.sg), the country's largest pet care e-commerce platform. Owned the end-to-end execution of the shopping experience, from website development to fulfillment systems, covering both pre- and post-purchase operations.
  • 🚀 Key Achievements:
  • ✅ Spearheaded platform re-architecture, migrating from Shopify to a custom-built headless system, improving SEO and site performance.
  • ✅ Integrated STRIPE one-click checkout, increasing transactions by 15%.
  • ✅ Built in-house WMS & OMS, increasing operational efficiency by 20% and reducing logistics overhead.
  • ✅ Launched Predictive Delivery System, improving estimated delivery accuracy and increasing conversions.
  • ✅ Boosted product listing and search page speed by 50% with Elasticsearch integration.
  • ✅ Increased user authentication efficiency by 20% and login success rates by 90% using single sign-on and OTP login.

Paytm

Director of Engineering

Feb 2019 – Jun 2021 · 2 yrs 4 mos · Bengaluru, Karnataka, India

  • Led engineering for the Flights product at Paytm Travel, defining technology roadmaps and driving execution in collaboration with business, product, and finance teams. Spearheaded the re-architecture of flight systems, transitioning from a monolithic to a microservices-based architecture, significantly scaling the business. Streamlined development processes, automated recurring tasks, and integrated with major external partners like Amadeus, Galileo, and leading airlines. Played a key role in hiring and team growth while ensuring transparency through regular stakeholder reviews.
  • 🚀 Key Achievements:
  • ✅ Transformed Paytm Travel’s flight search system, achieving 99% uptime and reducing latency.
  • ✅ Upgraded caching strategy, achieving a 90% cache hit ratio, significantly enhancing user experience.
  • ✅ Led the migration to microservices architecture, improving system resilience and maintenance.
  • ✅ Designed an automated financial reconciliation tool, reducing manual effort by 40% for finance teams.
  • ✅ Scaled an engineering team of 40+ members, driving high-impact projects in Paytm Travel.

Cleartrip

Senior Engineering Manager

Sep 2010 – Feb 2019 · 8 yrs 5 mos · Bengaluru, Karnataka, India

  • Led the engineering for the Flights product at Cleartrip, a startup where I helped build the platform from the ground up (0 to 1) and scale it into a fully mature system (1 to many). Joined as a Tech Lead, progressed to Architect, and later became a Senior Engineering Manager, driving the end-to-end execution of the flight booking system across suppliers, consumers, distribution, and fulfillment on desktop, mobile, and B2B channels. Played a key role in defining the system architecture, transitioning to scalable solutions, and building critical monitoring and business dashboards. Instrumental in growing the team, retaining top talent, and optimizing operations to enhance Cleartrip’s flight booking experience.
  • 🚀 Key Achievements:
  • ✅ Managed Flights engineering, responsible for 80% of company revenue, growing the team from 10 to 30+ engineers.
  • ✅ Developed one-click booking system, reducing drop-off rates by 20%.
  • ✅ Architected a multi-GDS integration, increasing revenue per booking by 10%.
  • ✅ Automated solutions for B2B & white-label models, cutting the readiness of system from 7 days to 2 hours
  • ✅ Revamp of the Cleartrip 2.0 website, resulting in improved scalability and reliability of the system.
  • ✅ Transitioned to on-demand daily releases, improving feature delivery speed by 30%

Arisglobal

Technical Lead

Dec 2005 – Aug 2010 · 4 yrs 8 mos · Bengaluru, Karnataka, India

Satyam computer services ltd

Senior Software Engineer

Apr 2003 – Nov 2005 · 2 yrs 7 mos · Bengaluru, Karnataka, India

Karna technologies india

Software Engineer

Jan 2001 – Oct 2002 · 1 yr 9 mos · Bengaluru, Karnataka, India

Education

University of Madras

Bachelor of Technology - BTech

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