I build secure fintech and enterprise platforms with .NET, distributed microservices, and event-driven architecture. I work across the whole thing, from database schema to production deploy.
const engineer = {
writes: 'C#',
reads: 'stack traces',
deploys: 'on Fridays',
regrets: null,
}What I work with day to day
Secure APIs and distributed microservices with C#, .NET, ASP.NET Core, and EF Core.
Reliable data flows with SQL Server, PostgreSQL, Redis, Kafka, and RabbitMQ.
Auth with Keycloak, OAuth 2.0, OpenID Connect, JWT, and dynamic RBAC.
gRPC, YARP API Gateway, event-driven patterns, and Polly resilience.
Most of this is client-owned, so the code stays private. The decisions do not.
Vertex Special Technologies
OCR extraction handled by an external service that can be slow, silent or repeat itself, with live status pushed to everyone watching, credit reserved and settled against real page counts, and callbacks safe to receive twice.
Ureka Systems
Distributed .NET microservices with Kafka and Rebus messaging over RabbitMQ, Redis caching, Keycloak identity, gRPC between services and YARP routing at the edge.
Vertex Special Technologies
Ten days debugging a biometric device that stopped answering after every fingerprint scan, the decision to replace the hardware rather than keep fighting it, and the background worker that replaced it, syncing twice a day around the start and end of the working day.
Vertex Special Technologies
Roles created at runtime, granted per module, feature and action across 325+ endpoints, with no policy registered at startup and no database query on the authorization path.
Vertex Special Technologies
A request fingerprint hashed from parsed user-agent fields and the network address, a three-month window measured from last use rather than enrolment, and a clear-eyed account of why a device fingerprint is a decision about how often to ask, not a second factor.
Vertex Special Technologies
General Ledger, Trial Balance, Profit & Loss and Balance Sheet, each leaving as JSON, CSV, Excel or PDF from one pipeline: how an account hierarchy survives being flattened into formats that have no idea what nesting is, and what twelve near-duplicate renderers cost.
Vertex Special Technologies
A Node.js microservice running LibreOffice in Docker, shared across several .NET projects with explicit file ownership, cleanup and bounded conversion capacity.
7 projects in total, from permission systems to document pipelines.
View all workOne professional credential, backed by eight completed Microsoft courses
Professional Certificate
A complete back-end pathway covering C#, .NET, databases, security, scalability, algorithms, and deployment.
Course certificates
Additional credential · University of Alberta
Where I've worked so far
Mid-Level Software Engineer
Kathmandu, Nepal
Software Engineer
Lalitpur, Nepal
Case studies from this role
Tutor & Final Year Project Supervisor
Kathmandu, Nepal
Full Stack Developer & IoT Engineer
Nepal
A side project where the keyboard becomes part of the action
Play the build 
Independent browser game
A keyboard-first action game: type fast, react under pressure, and turn every keypress into part of the fight.
Where I studied, and what I picked up
London Metropolitan University
via Itahari International College
Delhi Public School
All academic years
Awarded for academics, attendance, and discipline across the full Bachelor's degree
2024
Competed against international participants at DesignThinkers Academy, Thailand
2024 · Thailand
Selected as 1 of 4 students from the college for an academic and innovation program
2025
Mentored Team Syntax Error to 1st place on architecture, pitching, and time management
{
"name": "Aaryan Jha",
"title": "Mid-Level Backend Software Engineer",
"location": "Kathmandu, Nepal",
"technicalExpertise": [
"C#",
".NET",
"ASP.NET Core",
"Entity Framework Core",
"LINQ",
"SignalR",
"Microservices",
"Event-Driven Architecture",
"REST APIs",
"gRPC",
"YARP",
"Polly",
"SQL Server",
"PostgreSQL",
"Redis",
"Kafka",
"RabbitMQ",
"Keycloak",
"OAuth 2.0",
"OpenID Connect",
"JWT",
"RBAC",
"MFA / 2FA",
"Docker",
"SonarQube",
"xUnit",
"Moq",
"Shouldly",
"AWS S3"
],
"experience": [
{
"title": "Mid-Level Software Engineer",
"company": "Ureka Systems Pvt. Ltd.",
"period": "July 2026 - Present",
"highlights": [
"Distributed .NET microservices for an enterprise fintech platform",
"Kafka and Rebus messaging over RabbitMQ with Redis caching",
"Keycloak authentication, gRPC communication, and YARP API routing",
"Polly resilience patterns, shared libraries, and SonarQube quality checks"
]
},
{
"title": "Software Engineer",
"company": "Vertex Special Technologies",
"period": "June 2024 - July 2026",
"highlights": [
"OCR-driven document processing with AWS S3 & SignalR",
"Multi-tenant architecture with MFA & device fingerprinting",
"RBAC securing 325+ APIs",
"Financial reporting & HRMS modules",
"Secure API Gateway with Argon2"
]
},
{
"title": "Tutor & FYP Supervisor",
"company": "Islington College",
"period": "Aug 2025 - Aug 2026",
"highlights": [
"Lectures on .NET Core Web API, MAUI, and Blazor",
"Final-year project mentoring, code reviews & defenses"
]
}
],
"education": {
"degree": "BSc (Hons) Computing - 74% (Straight A)",
"institution": "Itahari International College (London Metropolitan University)",
"year": "2022 - 2025"
},
"certifications": [
{
"name": "Microsoft Back-End Developer Professional Certificate",
"issuer": "Microsoft"
},
{
"name": "Foundations of Coding Back-End",
"issuer": "Microsoft"
},
{
"name": "Introduction to Programming With C#",
"issuer": "Microsoft"
},
{
"name": "Back-End Development with .NET",
"issuer": "Microsoft"
},
{
"name": "Database Integration and Management",
"issuer": "Microsoft"
},
{
"name": "Security and Authentication",
"issuer": "Microsoft"
},
{
"name": "Performance Optimization and Scalability",
"issuer": "Microsoft"
},
{
"name": "Data Structures and Algorithms",
"issuer": "Microsoft"
},
{
"name": "Deployment and DevOps",
"issuer": "Microsoft"
},
{
"name": "Design Patterns",
"issuer": "University of Alberta"
}
],
"awards": [
"Triple A Scholarship (all academic years)",
"30-Second Pitch Challenge - 3rd Place (Thailand, 2024)",
"International Exposure Program (Thailand, 2024)",
"Hack4SafeFood Mentor - Winning Team (2025)"
],
"contact": {
"phone": "+977 9745471881",
"email": "whcloud91@gmail.com",
"github": "github.com/screamingsyntax",
"linkedin": "linkedin.com/in/aaryanjha",
"portfolio": "jhaaaryan.com.np"
},
"languages": [
"English (Fluent)",
"Nepali (Native)",
"Hindi (Conversational)"
]
}Backend work, platform architecture, or mentoring. I read everything that lands here.
