Lead Backend Engineer

Architecting fault-tolerant systems at scale.

I'm a backend engineer with 8+ years building high-concurrency distributed systems and cloud-native platforms — microservices serving millions of requests per minute and zero-downtime migrations across billions of records. Today I focus on AI-augmented engineering: agents and RAG pipelines that automate code review and incident triage across tier-1 production services.

Key metrics

8+
Years building backends
1M+
Requests / minute served
1B+
Records migrated, zero downtime
20+
Services running AI tooling
01 / Core expertise

A stack tuned for scale & reliability

Grouped by structural layer — from language foundations up through the platform tooling that keeps tier-1 services healthy.

// layer 01

Languages & Core

backend foundations
Java Kotlin Spring Boot Node.js TypeScript System Design Distributed Systems
// layer 02

AI & Agentic Systems

augmented engineering
Claude API Anthropic / OpenAI RAG Pipelines MCP Servers Claude Code Agentic Workflows
// layer 03

Cloud & Distributed Data

scale & storage
AWS ECS / EC2 Lambda S3 DynamoDB RDS Kafka Redis PostgreSQL Cassandra
// layer 04

Platform & Reliability

ship & observe (SRE)
Kubernetes Docker GitHub Actions GitLab CI Datadog New Relic PagerDuty
02 / Experience

A pipeline of systems shipped

Eight years across high-scale marketplaces, fintech, and enterprise platforms — each role a node on the path from individual contributor to technical lead.

  1. Senior Software Engineer · EPAM (client: Expedia)

    Feb 2024 — Present
    ~30%
    Fewer support calls
    205 min
    Deploy time
    • Owned the full lifecycle of Java/Kotlin microservices powering Expedia's self-service and virtual-agent platform — driving a ~30% reduction in support calls and a 90%+ issue-resolution rate.
    • Built and shipped AI agent skills adopted across 20+ services for automated vulnerability remediation, dependency upgrades, and integration-test generation.
    • Identified PagerDuty alert triage as a recurring source of on-call toil; scoped, proposed, and shipped an AI triage skill that became standard tooling across teams.
    • Led migration of 12 services from ECS to EKS — cutting infra cost by ~$1,500/mo and deploy time from ~20 to ~5 minutes, unblocking standardized CI/CD, autoscaling, and observability.
  2. Senior Software Engineer · OLX Group

    Dec 2021 — Feb 2024
    1M+
    Requests / minute
    1B+
    Records migrated
    • Engineered OLX's real-time chat system handling 1M+ requests/minute with Node.js, Kafka, Redis, and Cassandra on EC2 — serving millions of users across multiple markets.
    • Planned and executed a zero-downtime migration of a production Cassandra cluster (1B+ records) to a new AWS account, including dual-write cutover and consistency verification.
    • Drove CI/CD platform decisions (GitLab + Helm + EKS), partnering with SRE on cluster setup and onboarding 10+ services across 4 engineers to the standardized deploy pattern.
  3. Software Engineer · Vyapar Apps

    Apr 2020 — Nov 2021
    4 svc
    Java → Kotlin
    • Led the team's Java-to-Kotlin migration across 4 services, designing the rollout pattern (coexistence, then incremental conversion) and establishing the internal Kotlin idioms now used platform-wide.
    • Designed and implemented the User Roles & Permissions module, enabling secure, role-based access control across user tiers.
  4. Software Engineer · HummingWave Technologies

    Jul 2018 — Apr 2020
    3+
    Production products
    • Architected cross-platform solutions (Android, iOS, Web) for Finnable, a fintech product integrating with credit bureaus to process loan applications under strict latency and compliance requirements.
    • Designed AWS cloud infrastructure (Lambda, DynamoDB, API Gateway, RDS) powering 3+ production products with high availability and fault tolerance.
B.Tech, Computer Science & Engineering
Madan Mohan Malaviya University of Technology
2014 — 2018