12/2025 – Present
Backend Software Engineer
TruesTech IT Solution Pvt Ltd. – Gurugram, Haryana
Scaling core payment processing pipelines, ACID-compliant ledger persistence, and cryptographic security across cloud infrastructure.
/Backend · Microservices · Distributed Systems—New Delhi, IN · IST
I architect low-latency microservices and build resilient distributed systems.
00/Portrait
Software Engineer · SWE
I’m Tushar Kumar. Backend Developer with hands-on experience architecting low-latency microservices, monorepo codebases, and distributed systems using Node.js, Java (Spring Boot), and TypeScript. Experienced in implementing ACID-compliant transactional ledgers, atomic order pipelines, and containerized cloud deployments on AWS.
01/Current Engagement
Software Developer Intern
TruesTech IT Solution Pvt Ltd.
02/Location & Local Time
New Delhi, India
IST (UTC+5:30) · Loading...
03/Availability Status
Open to Backend / SWE Roles
Immediate Start · Open to Relocation
Experience & Career
Building & delivering production systems.
02/2025 – 08/2025
Software Engineer Intern
AirFleet Managers – Gurugram, Haryana
Designed aviation asset management portal with multi-tenant data isolation, real-time messaging, and high-performance export engines.
06/2024 – 07/2024
Web Developer Intern
Sanrachna Foundation – South West Delhi, Delhi
Redesigned high-traffic publication portal, automated content distribution pipelines, and centralized editorial workflows.
Education & Academic Background
University degree programs & formal engineering foundation
Graduated08/2022 – 08/2025
Bachelor of Computer Applications (BCA)
SGT University
Gurugram, HRGraduated
Featured Engineering
Backend systems & architectures.
A selection of production-grade systems I've designed and shipped — focused on distributed backends, real-time infrastructure, and clean transactional guarantees.
01
Agentic RAG Intelligence Engine
Multi-tenant Retrieval-Augmented Generation Engine with Edge ONNX Embeddings and Real-time SSE Token Streaming
A multi-tenant Retrieval-Augmented Generation (RAG) platform engineered for high-throughput document intelligence and contextual question answering. The system utilizes on-device ONNX transformer pipelines to compute high-dimensional embeddings directly within Node.js, performing vector similarity search over PostgreSQL before streaming grounded LLM responses to clients.
Node.jsExpress.jsReact 19PostgreSQLpgvectorONNXGoogle Gemini APIDockerTailwind CSSVite
View ProjectOpen Source
02
DevPilot
Full-Stack AI Developer Acceleration Platform & Service Architecture
DevPilot is a full-stack platform engineered to streamline developer workflows and service orchestration. Built on a decoupled architecture, it pairs a robust Spring Boot backend for core business logic with an asynchronous, high-performance Next.js web client.
JavaSpring BootMavenNext.jsReactTypeScriptPostCSS
View ProjectOpen Source
03
CreatorStore
Enterprise E-Commerce & Order Processing API
A multi-tiered e-commerce backend built with Spring Boot 3 and Java 21, featuring atomic transactional checkout pipelines, JPA/Hibernate PostgreSQL modeling, and automated JUnit 5 test suites.
Java 21Spring Boot 3Spring Data JPAHibernatePostgreSQLMavenSwagger/OpenAPIJUnit 5
View ProjectOpen Source
04
NEXUS RTC
Cross-Platform Enterprise Desktop Collaboration Suite
A cross-platform desktop application delivering low-latency peer-to-peer real-time video, audio, and desktop screen sharing with a high-throughput WebSockets signaling cluster.
TypeScriptReactElectronNode.jsExpressWebSocketsWebRTCDocker
View ProjectOpen Source
Technical Capabilities
Backend engineering & distributed systems.
Languages
Core programming and scripting languages for systems & applications
Java (Java 21)JavaScriptTypeScriptPythonGoCSQL
Frameworks & Libraries
Backend architectures, enterprise frameworks, and client-side tooling
Spring Boot 3Hibernate / JPANode.jsNestJSExpress.jsReact.jsReact NativeRedux / Context APIJest / Unit TestingTailwind CSS
Databases & Caching
ACID transactional relational databases, NoSQL engines, and caches
PostgreSQLMySQL (ACID / Row-Locking)MongoDBRedis
Cloud & DevOps
Cloud infrastructure, containerization, process orchestration, and CI/CD
AWS (EC2)DockerKubernetesGitHub ActionsPM2 (Cluster Mode)GitLinux
Core Concepts & Architecture
Distributed architectures, communication protocols, and engineering practices
REST APIsDatabase DesignSystem MonitoringAgile & ScrumCI/CD PipelinesTest-Driven DevelopmentGitFlowCryptography (AES-256 / RSA)
Specialized Engineering Practices: Idempotent payment webhook dispatching, multi-rail gateway integration, ACID MySQL schemas with row-level locking, automated transactional checkout pipelines (@Transactional), Swagger/OpenAPI documentation, PM2 Cluster Mode process management, and containerized Docker CI/CD deployments on AWS EC2.