Senior Software Engineer · Backend & Cloud

I architect backend systems that scale and don't break under load.

6+ years building high-performance, fault-tolerant backend systems on Node.js and AWS serverless — and the marketplace integrations that move data across them at scale.

→ Get in touch View GitHub
Ambikesh Gautam
6+
Years building backends
10K+
Records / batch processed
30–40%
Latency reduced
7+
Marketplaces integrated
01About

I'm a backend engineer who likes the unglamorous parts: idempotent pipelines, dead-letter queues, schema design, and APIs that behave under pressure.

At Threecolts I architect white-label SaaS connectors for the Mirakl ecosystem and build event-driven services on AWS that process high-volume e-commerce data. Before that, I led a 4-person team at Cedcoss shipping WooCommerce marketplace plugins published to WordPress.org.

Lately I've been going deep on AI-powered automation — building LLM-based agentic systems and MCP servers with the Claude API for log analysis and error resolution.

I like owning a problem end-to-end, from the architecture diagram to the production dashboard.

➜ whoami
ambikesh_gautam
➜ cat profile.json
{
  "role": "Senior Software Engineer",
  "focus": "Backend · Cloud",
  "stack": ["Node.js","AWS","PHP"],
  "location": "Lucknow, IN",
  "status": "building things"
}
➜ _
02Experience
SEP 2024 — PRESENT
Senior Software Engineer
Threecolts India Pvt. Ltd. · Remote
  • Architected multiple white-label SaaS connectors for the Mirakl marketplace ecosystem, owning AWS architecture and database schema design.
  • Designed Node.js + PHP microservices on AWS (Lambda, API Gateway, SQS, DynamoDB) for high-volume e-commerce data processing.
  • Built event-driven pipelines ingesting 10K+ records/batch, reducing API latency by 30–40% via queue-based decoupling.
  • Engineered LLM-based agentic systems with the Claude API for automated log analysis and error resolution.
MAR 2020 — SEP 2024
Backend Developer
Cedcoss Technologies Pvt. Ltd. · Lucknow, India
  • Led a 4-person team developing WooCommerce marketplace integration plugins published to the WordPress.org repository.
  • Built Shopify apps using the Shopify Admin API, including a Shopify MCF connector for order fulfillment (PHP + Node + MongoDB, microservices).
  • Designed and optimized complex MySQL and MongoDB queries, improving system performance and stability by 25%.
  • Implemented robust error handling, logging, and debugging for high-concurrency production systems.
03Selected Work
// SAAS · AWS

Mirakl White-Label Connector Suite

Architected SaaS connectors syncing catalog, inventory, and orders between Mirakl Connect and four major commerce platforms — SFCC, Otto, WooCommerce & BigCommerce.

Node.jsAWS LambdaDynamoDBMirakl
// INTEGRATION

ChannelReply — Helpdesk × Marketplace

Connector unifying buyer messages and order data from Amazon, eBay, Walmart, Etsy, Shopify & WooCommerce into helpdesks like Zendesk, Freshdesk & Gorgias.

Node.jsSQSWebhooksREST
// SERVERLESS

Multi-Channel Integration Engine

Node.js + AWS serverless engine syncing inventory, orders, and pricing in real time across platforms, with idempotent, fault-tolerant pipelines.

LambdaSQSMongoDBIdempotency
// AI · AGENTIC

LLM-Based Backend Monitoring

Agentic system using the Claude API and custom MCP servers to analyze logs, surface root causes, and trigger automated recovery workflows.

Claude APIMCPNode.jsAutomation
04Tech Stack

Languages

JavaScriptTypeScriptPHPPython

Backend & APIs

Node.jsExpressLaravelRESTGraphQLMicroservices

Cloud & DevOps

AWS LambdaAPI GatewaySQSECS / EC2DockerCI/CDTerraform

Databases

MySQLMongoDBDynamoDBRedis
05Certifications
ANTHROPICAI Fluency: Framework & Foundations
ANTHROPICClaude Code 101 & In Action
ANTHROPICIntroduction to Model Context Protocol, Agent Skills & Subagents

Let's build something solid.

Open to backend, cloud, and integration challenges. The inbox is always open.

→ dev.ambikesh@gmail.com LinkedIn GitHub