NepDate
Bikram Sambat, the Nepali calendar, for 14 programming languages. One dataset and one spec, so every language gives the same day for the same date.
Sanam Pakuwal
Software Engineer · Technical Lead
- Architecture
- .NET
- Distributed Systems
- Leadership
- AI
I design distributed .NET systems, tune databases, and lead teams shipping AI features to production. I came into development through DBA and QA work, so I own systems end to end, not just the code.
7 yrs
engineering, DBA and QA
<100 ms
product search, down from 1 to 2 s
450+
institutions served by a FinTech solution
38,800+
NuGet downloads of NepDate
Now
- Reading
- The Pragmatic Programmer
- Building
- An advanced lightweight knowledgebase platform
- Exploring
- Rust and mobile apps
Focus
- Distributed Systems
- Multi-region architecture, caching, and message queues that keep an e-commerce platform running.
- Databases & Search
- SQL Server and PostgreSQL tuning, plus OpenSearch for full-text and vector search.
- AI Engineering
- RAG, MCP, agents, and vector search applied to systems already in production.
Projects
MitiBar
The Nepali date on your desktop. A bar above the Windows taskbar, the tray or menu bar on every system, and the whole month one click away.
NepDate Patro
A Nepali calendar for Android and iPhone with home screen and lock screen widgets. No ads, no account, and no network permission at all.
Batosathi
Road and weather alerts for a trip across Nepal. It watches your route and dates, and messages you when a warning, closure or forecast changes the answer.
Curioflux
A self-hosted knowledge base for what you save. Send a link from your phone; it archives the page, links it to what you saved before, and answers your coding agents over MCP.
Sluice
Send big files straight to another computer. Every block is checked as it lands, nothing is stored in between, and there is no account.
RsService
Service center platform: service requests, customers, RMA, warranty and revenue reports.
LMS
Learning management system with video content protection and S3 storage.
GymHub
Gym management app: members, attendance tracking and admin workflows.
eAttendance
Attendance tracking system with per-site licensing.
Open source libraries
- postgresql-to-mssqlStream data from PostgreSQL into SQL Server on the fly, for migrations without downtime.
- DotNetMapperThe simplest .NET object mapper, at hand-written speed.
- ada-csharpFast WHATWG-compliant URL parser for .NET, built on Ada.
- mcp-nugetModel Context Protocol server packaged and published as a NuGet tool.
- passgenPassword generator with customizable options and a public API.
- typesafe-dotnetUnofficial .NET client for the TypeSafe AI System One API.
- freetiermailRoute email across provider free tiers, about 900 a day, from .NET.
- hulakiOne API to deliver a message over chat, push, email and social, with an honest answer per recipient.
- jharicastPer-route, per-day weather and road rules for Nepal, from global models and official DHM and DoR warnings.
Stack
Experience
Singapore Ecommerce App Pte. Ltd.
Apr 2023 to presentTechnical Lead
- Own technical direction: architecture decisions, critical code review and engineering standards.
- Lead the platform’s AI adoption, from use cases and data access to the security model and how results get measured.
Senior Software Developer
- Led the move from single region to multi-region, now in production. Did about 90% of the research, design and build.
- Cut product search from 1 to 2 s down to under 100 ms by moving it onto OpenSearch, released behind feature flags.
- Three-layer cache with cross-region invalidation took the homepage warm path from 1.2 s to 600 ms.
Software Developer
- Rewrote the public product API as a new service, keeping the on-the-wire contract identical.
- Cut CRM pricing and enquiry reports from about 2 s to about 200 ms.
Pratham IT System Pvt. Ltd.
Mar 2019 to Apr 2023Software Developer, QA Manager & DBA
- Developer on FinAstra, a cooperative core banking platform used by 450+ institutions.
- Refactored the interest computation procedure with the senior developer, cutting batch runtime by about 70%.
- Built the QA function from scratch and replaced manual pre-release testing with Playwright.
- Ran SQL Server and PostgreSQL in production, and open-sourced the migration tool built for it.
Writing
Rate limiting in ASP.NET Core
Fixed window, sliding window, token bucket, and concurrency limiters, each with a live demo you can tweak.
Cutting search latency from seconds to under 100ms
Moving product search off full-table wildcard scans and onto OpenSearch, with feature flags so rollback is a config change.
Taking a single-region app to multi-region with SQL Server
Central writes, SQL Server transactional replication to regional read replicas, and cross-region cache invalidation.
Credentials
- Google AI Professional Certificate ↗
- Stripe Certified Professional Developer ↗
- Outstanding Performance Award
- SQL (Advanced) ↗
- Bachelor of Computer Applications
Contact
Email is the fastest way to reach me.