Ayush Raj
@ayushraj4
Backend software engineer building large-scale, real-time cloud and AI systems.
IndiaWhat I'm looking for
I’m a Backend Software Engineer building large-scale, real-time cloud systems. I specialize in Java/Python microservices and event-driven pipelines, and I own integrations end to end—from design and on-call to delivery—so teams can ship reliable, high-throughput services.
At Alexa AI, I engineered a Java semantic caching + rule-matching module that cut p90 response latency by 1.3s while lowering GPU inference cost, and I built a multi-tenant, petabyte-scale orchestration platform on EMR Serverless (AWS CDK, Step Functions, SQS) enabling 125+ teams to provision ETL and ML evaluation workspaces. I also productionized a multi-model AI voice assistant that reduced manual ticket triage by 90% and implemented a petabyte-scale Apache Iceberg lakehouse with a fault-tolerant deletion engine sustaining multi-region availability while processing 50M+ compliance requests per month.
Experience
Work history, roles, and key accomplishments
Software Development Engineer
Alexa AI
Jun 2025 - Present (1 year 1 month)
Engineered Alexa AI backend systems including semantic caching, rule-matching for a deterministic LLM-bypass layer, and event-driven data orchestration on AWS. Built a multi-model AI voice assistant for developers and implemented a petabyte-scale Apache Iceberg lakehouse with fault-tolerant deletion.
AI Software Engineer
AuxoAI
Jan 2024 - May 2025 (1 year 4 months)
Architected a multi-source chatbot using FastAPI microservices, TypeScript/Angular, and LangChain agentic RAG, improving retrieval relevance and reliability. Built Python data pipelines integrating the Smarty API and fuzzy-matching to improve CRM/chargeback data quality and lift ad revenue.
Software Engineer Intern
Aware Healthcare Technologies
Dec 2023 - Jan 2024 (1 month)
Built full-stack features for a 100k+ user health application using Java, Postgres, and Flutter, including telemetry-driven fitness tracking and an AI heart-score module. Integrated REST APIs for health data syncing and implemented an automated document extraction pipeline with AWS Textract.
Education
Degrees, certifications, and relevant coursework
Birla Institute of Technology and Science, Pilani
Bachelor of Engineering (B.E.), Electronics & Communication Engineering
2020 - 2024
B.E. in Electronics & Communication Engineering with a minor in Computer Science & Intelligence, completed from 2020 to 2024.
Availability
Location
IndiaAuthorized to work in
Job categories
Skills
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