Prabin Ojha · oprabin · Kathmandu, Nepal

Building scalable systems, AI platforms, and cloud infrastructure.

Software Engineering Leader · Technical Expert · AI Builder
Founder & CEO, Sajilo AI

8 years delivering production-grade backend systems, healthcare platforms, and applied AI. I have led engineering teams of up to 12, owning the path from system architecture and backend engineering to deployment, monitoring, and delivery. As founder of Sajilo AI, I build Sajilo Mitra, a conversational AI workspace live with paying clients in Nepal. For software and AI engagements, work with my team at Sajilo AI.

Engineering Leadership Healthcare Systems Java / Spring Boot AI & DevOps
oprabin@linux:~$
oprabin@dev:~$ whoami
Software Engineer · Tech Lead · Founder
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 engineering leader and technical expert based in Kathmandu, Nepal, with 8 years of experience building production-grade backend systems, healthcare 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, delivered platforms built from the ground up, and worked directly with US clients and product teams on complex, domain-heavy systems. I am the founder and CEO of Sajilo AI, a software and AI company whose product Sajilo Mitra, a conversational AI workspace, is live with paying clients in Nepal, and I am working with Hamro Health on its healthcare platform. Engagements for software and AI work run through Sajilo AI.

8 Years in Production
12 Largest Team Led
E2E Architecture to Monitoring
oprabin.profile
role = "Software Engineering Leader & Technical Expert"
current = "Founder & CEO, 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.

Conversational AI · 2026-Present

Conversational AI Workspace: Sajilo Mitra

Built and run Sajilo Mitra, a conversational AI workspace for businesses on chat channels, live in production with paying clients.

  • Understands Devanagari, Romanised, and code-switched Nepali-English in a single message.
  • Multi-channel: WhatsApp, Messenger, Instagram, Telegram, web chat, with human handoff when a lead needs a real person.
  • Live with paying clients in Nepal, replacing manual inquiry handling.
Conversational AI Multilingual NLP LLM WhatsApp API Lead Qualification

Healthcare Systems · Present

Healthcare Platform: Hamro Health

Working with Hamro Health, a Nepali healthcare technology company, on its school health platform for student healthcare tracking, and on scaling it into a consumer healthcare ecosystem.

  • Student healthcare tracking for schools, scaling to consumer healthcare.
  • Finding the nearest healthcare facility, and sending nurses, doctors, physiotherapists and lab sample collection to the home.
  • Delivered through Sajilo AI, including a conversational AI assistant across its apps and website.
Healthcare Platform Scaling Conversational AI

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, leading a team of 12 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 Python AWS EDI 834 ETL Team of 12

Healthcare Systems · 2020-2021

Claims Repricing Engine: Deerwalk

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 large claim volumes every cycle.
  • Replaced a licensed third-party tool in production for real health plan clients.
Java Hadoop CMS/Medicare Batch Processing Elasticsearch Team Lead

Fintech · 2021-2022

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

Founder and CEO

Sajilo AI Pvt. Ltd.

August 2025 - Present

Kathmandu, Nepal

  • Founded and run a software and AI company building products and platforms for Nepali businesses.
  • Products include Sajilo Mitra, a conversational AI workspace for businesses on chat channels, live with paying clients, and Sajilo Connect, chat commerce on top of existing business apps.
  • Working with Hamro Health, a Nepali healthcare technology company, on its school health platform for student healthcare tracking, and on scaling it into a consumer healthcare ecosystem: finding the nearest healthcare facility, and sending nurses, doctors, physiotherapists and lab sample collection to the home.
  • Lead product strategy, architecture and engineering delivery, and run the company's executive functions, including managing the legal entity.
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 Python AWS EDI 834 COBRA ETL Team Lead

Tech Lead

DigiConnect (now Bitskraft)

August 2021 - October 2022

  • 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 8. Live at major Nepali commercial banks.
Java Spring Boot Azure Docker CI/CD KYC OAuth

Trainee → Associate Software Engineer → Software Engineer (Team Lead)

Deerwalk Services Pvt. Ltd. (subsidiary of Deerwalk Inc., now Cedar Gate Technologies)

November 2018 - August 2021

Kathmandu, Nepal · Subsidiary of a US company

  • Led a team of 5 on 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

Applied AI & Data

AI Solution Architecture
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 (up to 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 of Engineering in Computer Engineering

Tribhuvan University, Kathmandu Engineering College

2014 - 2018

Relevant coursework included Data Structures and Artificial Intelligence.

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

Technical Expertise, Through Sajilo AI

I advise and build on systems I have actually shipped. Engagements run through my company, Sajilo AI, which also builds products and delivers projects for Nepali businesses.

Architecture & Code Review

Independent review of designs, code, and release practice: what will hold up in production, what will become hard to maintain, and what to fix first.

AI & Conversational Systems

Conversational assistants, retrieval over your own documents, and agentic workflows, built with human handoff, evaluation, and monitoring.

Legacy Modernization & Migration

Replacing old systems and moving their data without losing anything, with full reconciliation until the old and new results match.

Fractional Technical Leadership

Ongoing technical leadership for teams: architecture decisions, engineering practices, and delivery, as a fractional CTO or technical advisor.

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
Company sajilo.ai
Location Kathmandu, Nepal