Aakash Kumar

About Aakash Kumar

I’m a backend-focused engineer who builds and scales cloud-native, production-grade systems for real business workflows.At WorldRef Technologies, I own backend development for B2B SaaS platforms covering deal management, quotations, negotiations, and order lifecycles. I design and ship high-throughput Spring Boot services, secure REST APIs, and event-driven systems with a strong emphasis on scalability, performance, and reliability.Some recent impact:• Improved backend scalability by 35% using service decomposition and async processing• Reduced API latency by ~40% through query optimization, indexing, and Redis caching• Built secure, role-based APIs using JWT authentication• Designed scalable document and file pipelines using AWS S3My core strengths are:• Java & Spring Boot backend engineering• Distributed systems and system design• AWS-based cloud infrastructure• Performance optimization and caching• Practical GenAI systems (LLMs, RAG pipelines, vector databases)I enjoy working close to real product problems — where engineering decisions directly impact reliability, cost, and user experience. I prefer environments where engineers own systems end-to-end and decisions are driven by real production constraints.I’m open to collaborating on challenging backend systems, scalable platforms, and AI-enabled products — especially with fast-moving startups or global teams.If you’re building something that needs to scale and want a backend engineer who takes ownership end-to-end, feel free to reach out. Happy to chat over a quick call if it’s a good fit.

Experience

1. Software Developer

   WorldRef

   Sep 2024 — Present · Noida, IN

   Owned backend API design and implementation for multiple business-critical workflows including search, notifications, PDF generation, and order tracking, using Java Spring Boot microservices.• Led optimization of legacy backend services by identifying performance bottlenecks, refactoring code paths, and improving data access layers, resulting in ~30% reduction in response latency.• Designed and evolved SQL schemas and query strategies to support growing data volumes and concurrency requirements.• Delivered full-stack features by coordinating backend APIs and React-based UI, ensuring consistency across user experience and system behavior.• Worked cross-functionally with product and design teams to shape feature scope, prioritize engineering trade-offs, and deliver business-aligned solutions.

Education

• Jawaharlal Nehru University

  Master of Arts - MA, International Relations and Affairs

• Indian Institute of Technology, Kanpur

  Bachelor of Technology - B-Tech, Electrical and Electronics Engineering