Sakthisaran S is an AI Engineer based in Tamil Nadu, India, with over two years of experience. He currently works at Altolabs as an AI Engineer since June 2025, building backend and AI systems using Java, Python, MongoDB, Redis, and Kubernetes, with retrieval-augmented generation pipelines on Azure OpenAI and Azure AI Search. Previously he was a Software Engineer at Mondee (January 2024 to June 2025) and interned at Purplegrids before that. Outside of work, he designs and runs a self-hosted MicroK8s homelab on Raspberry Pi 5 nodes and a Proxmox machine, with TrueNAS for ZFS-backed storage, hosting Immich for photo management, Nextcloud for personal file storage, n8n for workflow automation, and Firefly III for personal finance tracking. He holds a B.Tech in Information Technology from K S Rangasamy College of Technology (2019-2023, 8.35 CGPA). Contact: sakthisaransss55@gmail.com, phone +91 8925317177. GitHub: github.com/sakthisarans. LinkedIn: linkedin.com/in/sakthisaran-s.

AI ENGINEER · BENGALURU, IN

Sakthisaran S
builds the backend
behind the model.

Two years deep in RAG pipelines, LLM integrations, and the Java & Python services that keep them fast, observable, and in production — not just in a notebook.

From AKS to a Raspberry Pi rack.

I'm an AI Engineer who came up through backend systems first — which means I think about an LLM the way I think about any other dependency: what's the latency budget, what happens when it's slow, and how do I know if it's wrong before a customer does.

At Altolabs, that means owning pieces of an AI-powered platform — retrieval pipelines, LLM integrations, and the Java and Python services that keep them fast and observable in production. Before that, at Mondee, I worked on AI-driven personalization and automation. Each role has sharpened the same instinct: a model is only as good as the system feeding it and the one reading its output.

Off the clock, I run the same discipline on my own hardware — a self-hosted MicroK8s homelab on Raspberry Pi 5 nodes and a Proxmox box, with TrueNAS behind it for storage, hosting Immich for photos, Nextcloud for files, n8n for automation, and Firefly III for personal finance — plus a fair number of 2 a.m. outages I've had to debug myself. It's the same instincts either way — happy to talk through it.

ROLE
AI Engineer
EXPERIENCE
2+ years
CURRENTLY AT
Altolabs
BASED IN
Tamil Nadu, India
FOCUS
RAG · LLM infra · K8s
EDUCATION
B.Tech IT, 8.35 CGPA

Where the work happened.

JUN 2025 — PRESENT

AI Engineer

Altolabs · Full-time

Building and maintaining an AI-powered platform across multiple backend microservices — LLM integration, RAG architecture, and semantic search for accurate, context-aware conversations at production scale.

JAN 2024 — JUN 2025

Software Engineer

Mondee · Full-time

Built an AI-powered personalization platform delivering intent-driven recommendations and automated workflows using RAG, vector search, and behavioral analysis.

SEP 2023 — DEC 2023

Intern

Purplegrids

Early hands-on work across backend systems and AI tooling that set the direction for everything since.

Selected systems, not slides.

AI ENGINEER · ALTOLABS

Agentic AI Platform

Building and scaling an agentic AI platform end to end — LLM integration, RAG architecture, and semantic search to deliver accurate, context-aware conversations, backed by the backend performance work that real production scale demands.

JavaPythonAzure OpenAI Azure AI SearchWeaviateRedis MongoDBKubernetes
AI ENGINEER · ABU DHABI ISLAMIC BANK (ADIB)

Document Intelligence Platform

An enterprise-grade AI document intelligence chatbot on Azure for ADIB, giving secure, role-based access to CRM and policy knowledge. RAG workflows and semantic search, built for compliant deployment in a regulated environment — improving agent productivity, response speed, and governance.

PythonAzure OpenAIAzure AI Search AKSAzure Logic AppsMicrosoft Graph API
BACKEND DEVELOPER · MONDEE

AI Travel Personalization Platform

An AI-powered travel planning platform delivering end-to-end, intent-driven recommendations and automated booking workflows — RAG, vector search, and behavioral analysis combined into a personalized, scalable travel experience.

JavaScriptJava (Spring Boot)Python (Flask) OpenAIGeminiWorkflow Automation
ARCHITECT & DEVOPS · PERSONAL PROJECT

Home Lab

A production-like multi-node cluster built around reliability and data persistence — MicroK8s for orchestration across Raspberry Pi 5 nodes and an x86 Proxmox machine, TrueNAS for durable ZFS-backed storage, Cloudflare ingress, full observability, and GitOps for resilient, auditable operations. Built iteratively over a year on a tight budget, with deliberate tradeoffs that favor data safety over uptime. The cluster runs a handful of services I depend on daily: Immich as a self-hosted photo library (with a Python/ffprobe pipeline I built to migrate years of photos out of Google Photos and catch corrupted files along the way), Nextcloud for personal file storage, n8n as the automation backbone — running infrastructure audits and a personal finance pipeline that parses bank SMS alerts and categorizes them automatically — and Firefly III on the receiving end, turning that pipeline into hands-off bookkeeping.

MicroK8sProxmox VETrueNAS Raspberry Pi 5CloudflareGitOps ImmichNextcloudn8n Firefly III

Tools that earn a place here.

Where it started.

B.Tech, Information Technology

K S Rangasamy College of Technology
8.35 CGPA2019 — 2023

Have something that needs
an AI Engineer who ships?
Let's talk.

$ whoami
sakthisaran-s · ai-engineer
$ cat status.txt
open to interesting backend & AI problems