Built & Launched Startup Platforms | Systems/Infra Engineer
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About Me
I design and ship scalable, full-stack systems.
I'm Saphal Poudyal, a CS sophomore and systems engineer. I build across frontend, backend, cloud infrastructure, and networking—turning ideas into production-ready platforms.
Education
Bachelor's in Computer Science
2024 Aug - Present 
Hattiesburg, MS
The University of Southern Mississippi High School in C.S Stream
2019 Aug - 2023 Aug Kathmandu, Nepal
Ambition Academy Secondary School Writing
Space where I dismantle systems and write about them. Read more on blogs.saphal.me .
- Understanding the brain of Internet Service Providers- The BNGs Part IMay 25, 2026
How Broadband Network Gateways (BNGs) power ISP infrastructure — control plane, data plane, RADIUS authentication, and PPPoE/IPoE — explained through Aether, my Python-based vBNG emulation.
Projects 
saphalpdyl/Aether
Projects that I have been publicly involved in recently.
saphalpdyl/AetherOffline
A full-stack ISP simulation built from scratch — custom BNG routers, raw socket DHCP interception with Option 82, RADIUS auth, and per-subscriber traffic shaping via nftables. Python control plane, Redis Streams event sourcing, Containerlab topology on Hetzner.
Real NOC tooling, real networking stack.
Real NOC tooling, real networking stack.
PythonContainerlabRADIUSDistributed systemsnftablesGoHetzner Cloud
Experience
These are my professional experiences through different roles in the industry from the newest to oldest.
Software Engineer, Systems & Infrastructure
Jan 2026 - Present Aquaview ( initiative by National Oceanic and Atmospheric Administration - NOAA )
GoGCPDistributed systemsConnectRPCProtobufsMongoDBDDDOpenTelemetryDocker - Extracted sandbox provisioning into a standalone Go microservice exposing 9 RPC endpoints across 2 ConnectRPC services, supporting up to 165 concurrent sandboxes across isolated user and automated execution pools
- Designed a supervisor actor-model in Go with a size-64 inbox channel and semaphore-bounded worker goroutines, eliminating shared-state contention across all concurrent RPC handlers
- Built a stale-data reconciliation pipeline handling divergence between the Daytona provider and local registry, covering both orphaned and ghost snapshot edge cases
- Introduced a full local observability stack with OpenTelemetry, Grafana, Loki, and Tempo — wiring distributed tracing through ConnectRPC and MongoDB with trace-log correlation
Founding Engineer
Aug 2025 - Nov 2025 MagnoliaEd LLC (Microsoft-Powered Startup)
AWSTerraformFastAPIPostgreSQLNext.jsTurborepoDockerCI/CD - Led end-to-end product development, securing $50,000 in seed funding and driving the startup from concept to execution.
- Architected and provisioned resilient AWS cloud infrastructure, optimizing cost and reducing operational expenses by over 60% through strategic trade-offs between managed and self-managed services.
- Engineered a modular FastAPI backend, designed for scalability while maintaining efficiency for early-stage operations.
- Built a multi-app Turborepo + Next.js infrastructure, enabling shared logic/design and cutting deployment times by 50% with smart caching strategies.
- Designed robust API contracts and database schemas, ensuring seamless integration across the modular backend and unified data infrastructure.
.NET Core & Machine Learning Intern
May 2025 - Present Prediction3D Technologies
C#.NET CoreLangChainLangGraphSupabaseOAuth2Machine Learning - Architected graph-based LLM orchestration system with LangGraph/LangChain, implementing multi-agent workflow(supervisor architecture) and RAG capabilities for the customer support platform.
- Implemented hybrid OAuth2 authentication system using FedCM with PKCE fallback, integrating Supabase identity provider with .NET API for cross-browser compatibility and optimal UX.
- Implemented stateful conversation management with database checkpointing, enabling context-aware multi-turn interactions while maintaining conversation history across sessions.
Undergraduate Research Assistant
Nov 2024 - Present The University of Southern Mississippi Construction and Design
UnityBlenderSubstance PainterMaterializeGoogle Apps Script - Developing a research-based interactive gaming environment in Unity Engine using tools such as Blender, Adobe Substance Painter, Materialize and so on.
- Reviewing and filtering to provide quality data for research purposes.
- Created an AI-powered automated dev-log workflow between myself and supervisors in Google workspaces with Google Apps Script(GAS) reducing time required on reviewing by 17% (~7 minutes).
Flutter Developer
May 2024 - Aug 2024 BTech Ltd.
FlutterDartClean ArchitectureSOLIDERP Systems - Developed a Flutter based ERP(Entity Resource Planning) system following Clean Architecture and SOLID principles for efficient, scalable, and domain-oriented code.
- Implemented journal entries, journal ledgers, inventory management, billing and multiple different financial reports.
- Managed project timelines and deliverables to ensure on-time completion and high-quality results completing project 11 days earlier than the deadline.
- Collaborated with the client to gather requirements, provide regular updates, and incorporate feedback into the application.
Django Instructor
Oct 2023 - July 2024 Sipalaya Infotech Pvt. Ltd.
DjangoPython - Successfully delivered Django programming course for 3 batches of students, with 9 students managing to land an internship within a month of course completion.
- Developed and presented course materials, leveraging rapid mastery of programming concepts to effectively educate students.
Full-stack Python Developer Intern
Oct 2023 - Apr 2024 Sipalaya Infotech Pvt. Ltd.
PythonDjangoPostgreSQLReactReduxZustandREST APIsCI/CD - Developed, end-to-end, the CRM service for the Internet service company Beni communications’s administrator web application using Django with PostgreSQL and React.js with Redux and Zustand along with Postman for testing APIs.
- Contributed in translation of PHP-based REST APIs into scalable Django implementations.
- Reformed the previous billing system with keyboard shortcuts and macros increasing user experience by 30%.
- Re-documented 99% of the views and service functions using PyDoc learning test driven development(TDD).
- Maintained Continuous Integration (CI) through GitHub Actions and Django Tests and communication through Jira.
Copyright © 2026 | Saphal Kumar Poudyal Hattiesburg, MS, USA