Hi, I'm Shubham Upadhyay
Senior Software Engineer • Bengaluru, IndiaBuilding scalable, high-concurrency backend architectures, mission-critical financial APIs, and privacy-first client-side utilities. Creator and sole architect of ShubhamLabs.
Background & Philosophy
For over 8 years, I have architected and maintained high-throughput web applications, enterprise SaaS portals, and database-intensive backends. Currently contributing at Ascent HR Technologies in Bengaluru, I specialize in designing non-blocking API architectures, optimizing database computation engines, and building privacy-first developer tools.
Performance & Concurrency
Designing multi-cURL parallel execution pipelines, optimized SQL queries, and efficient data structures.
Zero-Telemetry In-Browser Privacy
Architecting sandbox developer utilities running 100% client-side with zero server storage or tracking.
Open Engineering & Knowledge Sharing
Deconstructing complex system designs and sharing real production experiences through comprehensive logs.
Core Technical Stack & Tools
The Career Journey
Milestones and production engineering impact across 8+ years in software development.
Senior Software Developer
- Core backend engineer contributing to enterprise Human Capital Management SaaS applications supporting multi-tenant corporate clients.
- Developed scalable backend modules for attendance regularizations, leave & comp-off management, and automated multi-level approval workflows.
- Optimized database queries and built reliable REST APIs supporting daily employee self-service operations.
Senior Web Developer & Associate
- Architected and maintained Links CRM, the enterprise internal system for global visa application tracking, consular processing, client dossiers, and automated document verification workflows.
- Engineered core backend modules and operational task pipelines for the GetFriday CRM, supporting international virtual assistant services and corporate client workflows.
- Developed backend APIs and integrated secure Razorpay payment gateway checkout workflows for the TTK Visas website.
PHP Web Developer
- Built the custom manufacturing and quote-to-production CRM from scratch for the Fast DMS product line (on-demand CNC machining and custom parts manufacturing).
- Engineered automated document pipelines, multi-role security access, and order tracking workflows.
- Integrated Shopify and BigCommerce RESTful APIs alongside Ziwo cloud telephony; awarded Appreciation Letter for technical contribution.
Web Developer
- Began software engineering career developing database-driven Management Information Systems (MIS) and custom PHP portals.
- Conducted cross-browser performance optimizations and automated data workflows.
- Awarded Employee of the Month (March 2020) for engineering delivery.
Open Source Repositories & Projects
ArchMCP
A centralized remote Model Context Protocol (MCP) server that empowers AI coding assistants with real-time microservices architecture intelligence, database schema lookups, API cataloging, and dependency blast-radius analysis.
Concurrent API Client PHP
High-performance dashboard querying REST APIs concurrently using parallel Multi-cURL. Structured with modern OOP design patterns (Strategy, DTO, PSR-4) to execute parallel HTTP pipelines and benchmark sequential vs non-blocking concurrency side-by-side.
ClipNest
A native Linux clipboard-history desktop application engineered for seamless developer workflow, lightweight memory footprint, instantaneous search across historical clipboard clips, and fast keybinding access.
TTK Services — Links CRM, GetFriday & TTK Visas
Architected core backend systems across flagship TTK Services products. Developed Links CRM (the enterprise visa application tracking & document orchestration platform), scaled the operational GetFriday CRM for global virtual assistant management, and integrated the TTK Visas website with secure Razorpay payment workflows.
Fast DMS — Custom Manufacturing CRM
Engineered the custom quote-to-production manufacturing CRM from scratch for the Fast DMS product line at LetUsCode Systems. Built automated document processing pipelines, multi-role security access, order tracking workflows, and integrated Shopify/BigCommerce REST APIs alongside Ziwo cloud telephony.
ShubhamLabs Sandbox Engine
Built 50+ offline-capable, privacy-first developer utilities running 100% client-side via Web Workers, AST parsers, and browser memory algorithms. Zero telemetry, zero external server tracking of proprietary code, tokens, or logs.
Let's Build Something Together
I'm always open to discussing software performance, system designs, custom developer utilities, or open-source collaborations. Have an interesting idea or need consultation?