Abhishek Chandak

Software Development Engineer II at Amazon

Handle

@abhishek-hdx5

Role

Software Development Engineer 2

Company

Amazon

About

I design and build distributed backend systems, cloud-native platforms, and AI-powered developer productivity solutions at Amazon. I work with Java, Python, AWS, OpenSearch, microservices, and AI agents to deliver scalable backend services, high-throughput data pipelines, and enterprise-scale financial platforms. I own production systems from architecture and implementation through deployment and operational excellence.

Experience

• Software Development Engineer 2 at Amazon
  Jan 2024 to now - Gurugram
  • Designed and developed scalable backend services and low-latency search APIs backed by OpenSearch for Amazon FinOps' invalid invoice investigation platform, delivering a unified search experience with ~800 ms search latency and providing finance teams with a single solution to search, investigate, and resolve invalid invoices. • Built distributed backend services supporting the ingestion and indexing of invalid invoices from Amazon businesses at ~800 TPS, ensuring near real-time availability of financial data for downstream investigation workflows. • Integrated Concur, AppZen, American Express, and JPMorgan Chase data sources into a unified compliance platform supporting $660M+ in annual reimbursement processing, providing centralized visibility into compliance leakage, policy violations, and enterprise-wide financial risk. • Developed a GenAI-powered fraud detection solution leveraging LLMs and prompt engineering to automate suspicious reimbursement investigations, improving policy
• Software Development Engineer at Amazon
  Aug 2021 to now - Gurugram
  • Engineered an automated invoice redrive platform capable of detecting workflow failures, notifying service owners, and automatically reprocessing invoices after corrective action, reducing incoming support tickets by 70% • Re-architected distributed financial data delivery pipelines, reducing SLA from 4 hours to 1 hour (75% improvement) and significantly accelerating downstream fraud detection workflows. • Built scalable reconciliation pipelines processing 6M+ financial records daily, improving data accuracy while eliminating recurring manual interventions. • Designed reusable AWS CloudFormation templates to overcome the 500-resource stack limit, enabling infrastructure to scale with business growth. Reduced onboarding time for new business integrations by 50% while enabling seamless onboarding of 10 additional businesses. •Delivered GDPR and DMA compliance capabilities adopted by 35+ client teams, enabling enterprise-wide regulatory compliance across multiple Amazon business systems
• Software Engineer Intern at Amazon
  Jan 2021 to now - Gurugram
  • Developed backend services supporting enterprise invoice publishing systems consumed by downstream financial workflows. • Built lineage APIs improving audit traceability and reducing debugging effort across distributed financial systems. • Automated onboarding workflows, reducing client integration effort by 90% and accelerating customer onboarding timelines.

Education

• Jaypee Institute of Information Technology
  Bachelor of Technology, Computer Science Engineering
  2017 to 2021
  CGPA: 8.8 / 10

Skills

• Java
• Python
• Kotlin
• TypeScript
• SQL
• AWS
• OpenSearch
• Distributed Systems
• Microservices
• REST APIs
• LLMs
• AI Agents
• Bedrock
• GenAI

Links

• LinkedIn

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