Prabin Ojha · oprabin

Building scalable systems, AI platforms, and cloud infrastructure.

AI Consultant · AI Product Builder · Software Engineer
Technical Lead & Co-Founder

8+ years delivering production-grade backend systems, applied AI platforms, and cloud-ready infrastructure. I advise on AI strategy and build the systems myself — two AI products I've shipped, a governed RAG platform and a multilingual conversational AI system, are live in production today. I own the full path, from system architecture and backend engineering to deployment, monitoring, and team delivery.

AI Consulting RAG & Agentic Systems Java / Spring Boot DevOps & CI/CD
oprabin@linux:~$
oprabin@dev:~$ whoami
Software Engineer · AI Builder · DevOps · Tech Lead
oprabin@dev:~$ experience --years
8+ years · production systems · 3 domains
oprabin@dev:~$ stack --core
Java | Spring Boot | PostgreSQL | Docker
OpenAI | pgvector | AWS | GCP | CI/CD
oprabin@dev:~$

About

I am a software engineer and technical lead with 8+ years of experience building production-grade backend systems, applied AI platforms, and cloud infrastructure. My work spans system architecture, backend engineering, DevOps automation, and hands-on engineering leadership, owning the full lifecycle from design to deployment to production monitoring.

I have led teams of up to 12 engineers, delivered platforms built from the ground up, and worked directly with US-side business stakeholders on complex, domain-heavy systems. Currently co-founding Sajilo AI, building a governed RAG platform for regulated industries, and building Somitano AI, a multilingual conversational AI platform live with a paying customer in Nepal.

8+ Years in Production
12 Engineers Led
E2E Architecture to Monitoring
oprabin.profile
role = "Software Engineer & Technical Lead"
current = "Co-Founder, Sajilo AI"

domains = [
  "Backend & System Architecture",
  "Applied AI & Semantic Search",
  "DevOps & Cloud Infrastructure",
  "Engineering Team Leadership"
]

approach = "Ship reliable systems. Own the full stack."

Projects

A selection of the systems and platforms I have designed, built, and led to production.

AI Platform · 2025-Present

Governed AI Platform: Sajilo AI

Co-founded and building a document-intelligent AI platform for professional knowledge work in regulated industries: law, audit, banking, corporate finance.

  • RAG with hybrid semantic and keyword search over institutional documents.
  • Role-based access controls, citation-grounded outputs, and full audit trails per query.
  • Built for regulated environments where every answer must be traceable.
RAG pgvector OpenAI Spring Boot PostgreSQL AWS

Conversational AI · 2026-Present

Multilingual Conversational AI: Somitano AI

Built and shipped a multi-channel conversational AI platform for Nepali businesses, live in production and automating inquiries for a paying client.

  • Understands Devanagari, Romanised, and code-switched Nepali-English in a single message — no global AI tool does this.
  • Multi-channel: WhatsApp, Instagram, Messenger, Viber, web chat, with human handoff when a lead needs a real person.
  • Live with a paying customer, a real estate business in Kathmandu, replacing manual inquiry handling.
Conversational AI Multilingual NLP LLM WhatsApp API Lead Qualification

Healthcare Systems · 2022-2025

US Healthcare Eligibility Platform: Viveka Services

Technical lead on an eligibility platform built from scratch for US labor union benefit funds, working with a team of 12 engineers across the full system lifecycle.

  • Multi-constraint eligibility engine: hourly reporting, employer contributions, rolling-window rules.
  • EDI 834 outbound filing to insurance carriers monthly. Member mobile insurance card.
  • 6-month ETL migration of 40+ years of member records, zero data loss, formally signed off.
Java Spring Boot PostgreSQL AWS EDI 834 ETL Team of 12

Healthcare Systems · 2018-2021

Claims Repricing Engine: Deerwalk Inc.

Led backend engineering and delivery of a proprietary Reference-Based Pricing engine at a US population health analytics company, replacing a licensed third-party tool with an in-house CMS-aligned system.

  • Repricing logic across 8+ CMS Prospective Payment Systems.
  • Core Java on Hadoop, batch processing hundreds of thousands of claims per cycle.
  • Replaced a licensed third-party tool in production for real health plan clients.
Java Hadoop CMS/Medicare Batch Processing Elasticsearch Team Lead

Fintech · 2021-2023

Mikha: Video Banking & KYC Platform

Tech lead on Mikha, an enterprise video banking and KYC platform deployed to major Nepali commercial banks.

  • Remote KYC verification, loan discussions, and customer onboarding over secure video.
  • Owned system design, backend APIs, KYC flow, scheduling, and Azure deployment.
  • Compliance controls: geo-fencing and network quality thresholds enforced for call reliability.
Java Spring Boot Azure Docker KYC OAuth

Experience

Co-Founder

Sajilo AI Pvt. Ltd.

August 2025 - Present

Kathmandu, Nepal

  • Building a governed AI platform for professional knowledge work in regulated industries: law, audit, banking, and corporate finance.
  • Architecting a RAG pipeline with hybrid semantic search, citation-grounded outputs, and full audit trails per query.
  • Leading product strategy, system architecture, and engineering delivery end to end.
Conversational AI OpenAI pgvector RAG Spring Boot PostgreSQL AWS React

Senior Software Engineer & Technical Lead

Viveka Services

October 2022 - October 2025

Kathmandu, Nepal

  • Technical lead on a US healthcare eligibility platform built from scratch, driving system architecture and working with a team of 12.
  • Built a multi-constraint eligibility determination engine for US labor union benefit funds covering hourly reporting, employer contributions, and complex rolling-window rules.
  • Delivered EDI 834 outbound filing to insurance carriers, member mobile insurance cards, and COBRA eligibility module.
  • Led a 6-month ETL migration of 40+ years of member records with zero data loss, formally signed off by client.
Java Spring Boot PostgreSQL AWS EDI 834 COBRA ETL Team Lead

Freelance Software & DevOps Engineer

Remote

Independent engagements

Remote

  • Delivered backend systems and microservices solutions for startups using Java and Spring Boot.
  • Designed CI/CD pipelines and deployment automation for multi-service environments.
  • Built reproducible infrastructure using Docker, Nginx, and infrastructure-as-code practices.
  • Handled database operations including migrations, replication, tuning, and backup automation.
Docker Nginx Infrastructure as Code DevOps PostgreSQL

Tech Lead

DigiConnect (now Bitskraft)

August 2021 - March 2023

  • Led backend engineering for Mikha, an enterprise video banking and KYC platform deployed to Nepali banks.
  • Owned system design, backend APIs, KYC verification flow, scheduling system, and full containerized Azure deployment.
  • Led a team of 5-6 engineers. Live at major Nepali commercial banks.
Java Spring Boot Azure Docker CI/CD KYC OAuth

Software Engineer → Team Lead

Deerwalk Inc. (now Cedar Gate Technologies)

July 2018 - August 2021

Kathmandu, Nepal · US-based company

  • Led delivery of a proprietary Reference-Based Pricing engine, replacing a licensed third-party tool with an in-house CMS-aligned repricing system covering 8+ Prospective Payment Systems.
  • Implemented CMS payment calculation logic across all service categories on Hadoop batch infrastructure.
  • Contributed to Makalu Plan Analytics: MARA risk scoring and Episodes of Care, surfaced via Elasticsearch reporting.
  • Regular direct collaboration with US-side product and business stakeholders.
Java Hadoop Elasticsearch CMS/Medicare Batch Processing Team Lead

Skills

Backend & Architecture

Java / Spring Boot
Microservices & API Design
System Architecture
PostgreSQL

AI Consulting & Applied AI

AI Strategy & Consulting
RAG & Semantic Search
Agentic Systems & LLM Orchestration
Multilingual Conversational AI
pgvector / OpenAI API
ETL Pipelines & Elasticsearch

DevOps & Cloud

Docker & CI/CD
AWS / GCP / Azure
Nginx & Infrastructure as Code
Prometheus / Grafana / ELK

Leadership

Engineering Team Lead (12+)
Full SDLC Ownership
Cross-functional Delivery
US Stakeholder Collaboration

Languages

Java
Python
SQL
Bash

Domain Knowledge

Healthcare Systems (US)
EDI Standards & Eligibility
Claims & Repricing Systems
Regulated Industry Platforms

Education

Bachelor's Degree in Computer Engineering

Kathmandu Engineering College

2014 - 2018 · GPA 3.6/4.0 (Honors)

Relevant coursework included Data Structures and Artificial Intelligence.

  • Blockchain-based Pharmacy Supply Chain System
  • Real-time Bus Tracking System

How I Can Help

AI consulting grounded in systems I've actually shipped — not advisory-only. A few ways engagements typically start.

AI Strategy & Readiness Audit

Where AI is genuinely load-bearing for your product versus where it's decorative, and what production-grade actually requires before you commit budget.

RAG & Agentic System Builds

Retrieval-augmented generation, agentic workflows, and knowledge platforms — built with the governance, citations, and audit trails regulated environments require.

Fractional AI / Technical Advisory

Ongoing technical judgment for teams shipping AI features — architecture review, model selection, evaluation pipelines, and vendor-agnostic orchestration.

AI Technical Due Diligence

For investors or acquirers evaluating an AI-native company: an honest technical assessment of what's real, what's fragile, and what's marketing.

Contact

Let's talk

If you're working on something in backend systems, AI, or cloud infrastructure, I'd enjoy the conversation.

Professional prabin.ojha@sajilo.ai
Location Kathmandu, Nepal