Open to opportunities

ArunKumar Kandasamy

@arunkumarkandasamy

Message

Engineering Lead with 16+ years building scalable Ruby on Rails platforms and cloud-native distributed systems.

India

Message

What I'm looking for

I’m looking to lead architecture and delivery of scalable, predictable web platforms—owning planning, risk management, performance and reliability, and partnering across product, QA, and operations to ship production-ready releases.

I’m an Engineering Lead focused on scalable web platforms and enterprise products, blending hands-on architecture with engineering leadership to deliver predictable outcomes. With 16+ years across Agile and Hybrid delivery models, I own end-to-end execution—from planning and risk management to release governance across the SDLC.

I’ve led modernization and performance initiatives using Ruby on Rails, cloud (AWS), and distributed systems, driving measurable reliability gains like reducing p95 latency and slow queries, plus stabilizing CI/CD and deployments. I partner closely with Product, Engineering, QA, Support, and Marketing to align on delivery, execute production readiness, and raise quality through strong architecture standards and observability.

Experience

Work history, roles, and key accomplishments

Current

Engineering Lead

Current

ThinkPro Technologies

Jan 2024 - Present (2 years 3 months)

Led engineering direction, owning architecture and end-to-end delivery across internal products and client modernization. Architected and launched VoiceHunt.news (Rails API + Next.js) and improved p95 latency 41% via caching/revalidation and database optimization while establishing CI/CD and release governance for reliable deployments.

Ruby on Rails Next.js AWS GraphQL CI CD Docker Performance Optimization Caching & Revalidation

Technical Lead

CAI Info India Private Limited

Feb 2020 - Mar 2023 (3 years 1 month)

Owned backend engineering and delivery for enterprise platforms, building Rails REST APIs and asynchronous workflows (Sidekiq/Delayed Job). Reduced p95 latency 28% and DB load 22% via query optimization/refactoring and improved reliability and security, cutting MTTR 38% through RBAC and production issue handling.

Ruby on Rails REST APIs Sidekiq PostgreSQL CircleCi Docker RBAC Performance Engineering

Senior Software Engineer

ZiniosEdge Information Technologies Private Limited

Apr 2018 - Jan 2020 (1 year 9 months)

Developed and scaled a large Rails CRM platform, delivering customer lifecycle workflows, reporting, and REST APIs with analytics integrations. Improved database performance by ~30% through schema design, indexing, and query optimization, and delivered 12+ features per quarter across multiple stakeholders.

Ruby on Rails PostgreSQL MySQL REST APIs Database Optimization Analytics Microstrategy Jsreport

Senior Software Engineer

Aspire Software Consultancy

Nov 2016 - Jan 2018 (1 year 2 months)

Collaborated with a UK-based B2B marketplace (Rightboat), owning end-to-end delivery of Rails product enhancements. Built backend workflows, improved reliability through performance tuning and bug fixes, and managed deployments and production support to ensure stable releases.

Ruby on Rails Backend Development Performance Tuning Agile Delivery