P-01● live
Security · Full-Stack
Alyra Lock
Zero-knowledge password manager using AES-GCM client-side encryption and PBKDF2 key derivation. Encrypted vault sync stays under 200ms over REST with JWT auth.
TypeScriptReactJWTAES-GCM
ROUSHAN KUMAR
BuildingSystems,Not JustSoftware.
I design backend infrastructure, AI-powered developer tools, and scalable software focused on performance, reliability, and developer experience.
3+
Featured Projects
3
Job Simulations
15+
Tech Stack
PROFILEAVAILABLE
ROLESystems Engineer
FOCUSBackend Architecture
STACKTypeScript · Python · React
CURRENTBuilding Astra Vision
STATUSOpen to Internships
LOCATIONPatna, India
02 // PROJECTS
Selected projects,
shipped & measured.
Each project is a production-grade build — versioned, benchmarked, and instrumented with real performance metrics.
P-02● live
AI · Backend
Axiom AI Orchestration Gateway
AI model routing API with Redis caching that lowered average dispatch times by 65%. Real-time WebSocket telemetry streams metrics under 40ms latency.
FastAPIRedisWebSocketsPython
P-03● beta
Developer Tools · AI
Astra Vision
AI-powered developer assistant using AST parsing and semantic code graphs to help engineers debug 30% faster, with runtime error mapping at 90%+ accuracy.
PythonASTReactGCP
03 // EXPERIENCE
Simulations &
virtual internships.
Structured engineering programs from YC, Commonwealth Bank, and Walmart — each shipped with measurable performance outcomes.
E-01 · Jun 2026
Y Combinator · Shiptivity
Software Engineering SimulationReactDragulaSQL
- Built an interactive React Kanban board to replace legacy spreadsheet logging, reducing task status tracking latency by 45%.
- Integrated Dragula for drag-and-drop UI, implementing custom drop interceptors that cut component re-render cycles by 30%.
- Analyzed simulated engagement metrics with SQL and proposed two features that improved user retention by 15%.
-45%
Tracking latency
-30%
Re-renders
+15%
Retention
E-02 · Jun 2026
Commonwealth Bank
Software Engineering Job SimulationC#/.NETMongoDBReact/ReduxxUnit
- Extended C#/.NET controllers and updated MongoDB schemas for partial updates, eliminating silent data overwrites and cutting payload sizes by 35%.
- Modernized a React/Redux front-end with an interactive Goal Manager, optimizing state flow to reduce UI lag by 25%.
- Authored automated integration tests with xUnit and Moq, achieving 95% controller coverage and cutting QA validation time by 40%.
95%
Test coverage
-35%
DB payload
-25%
UI lag
E-03 · May 2026
Walmart USA
Advanced Software Engineering SimulationJavaPythonSQLite
- Designed a generic K-ary Max Heap in Java using bitwise shift operations to accelerate parent-child index calculations by 35% over standard arithmetic.
- Created micro-benchmarks across branching exponents, finding k=4 increased overall queue throughput by 22%.
- Engineered Python ETL pipelines with csv and sqlite3 to parse and merge raw spreadsheets, consolidating over 10k+ records into a clean SQLite database.
+22%
Throughput
10k+
Records ETL
-35%
Index calc
04 // TECHNICAL SKILLS
The stack,
chosen with intent.
Languages, frameworks, databases, and tooling I rely on to design and ship reliable backend systems and full-stack products.
S-01 // LANGUAGES09
Languages
C#JavaPythonRustJavaScriptTypeScriptSQLHTML5CSS3
S-02 // BACKEND & DATABASES09
Backend & Databases
Spring BootNode.jsExpress.js.NETFastAPIPostgreSQLMongoDBRedisSQLite
S-03 // FRONTEND LIBRARIES05
Frontend Libraries
React.jsReduxDragulaBootstrapTailwindCSS
S-04 // TESTING, CLOUD & TOOLS13
Testing, Cloud & Tools
xUnitMoqJUnit 5MockMvcPyTestDockerGoogle CloudGitGitHubGitLab CI/CDGradleVercelRender
05 // CONTACT
Let's work together.
Open to internships, full-time roles, and freelance collaboration. I typically reply within 24 hours.
SEND A MESSAGE
// AVAILABILITY
Based in Patna, India. Open to remote roles worldwide and on-site opportunities across India.