Resume

Vijendra Kumar

Senior Software Engineer @ Apsona

📍 Bangalore, India | 📧 vijevira@engineer.com | 🌐 vijevira.in

Work Experience

Senior Software Engineer @ Apsona

Sep 2024 – Present | Bangalore

  • Designed and implemented apsona_nexus_svc, a Node.js backend that securely integrates with HashiCorp Vault via REST APIs.
  • Led clear cache system implementation across orgs with scheduler support and UI integration.
  • Developed Excel Merge automation via backend scheduler and restructured legacy code to remove cloning issues.
  • Introduced PDF upload service to client orgs, and built Merge button for Salesforce Lightning List View using LWC + Flow.
  • Segregated monolithic codebase into modular services: PDF SVC, SFDC SVC, and Vault SVC.
  • Performed upgrade from Node.js v8 → v18, integrated ESLint, and achieved >90% test coverage using Jest + Supertest.
  • Maintained documentation, architecture diagrams, and reusable mock/test datasets for long-term maintainability.

Senior Software Engineer @ Pratishthan Software Ventures

Sep 2023 – Aug 2024 · 1 yr · Bengaluru, India

  • Spearheaded the design, development, and deployment of payment systems like SEPA, QCBIP, and UAERT, enabling real-time transfers for sponsor and destination banks.
  • Engineered RCPI and NCPI flow enhancements to guarantee SLA compliance within a 1-second window for real-time payments.
  • Decoupled Return, Refund and Reject modules from the ACH system, improving modularity, error handling and regulatory adherence.
  • Developed lead-day validation APIs for SEPA Recall flows, boosting pre-processing accuracy and SLA compliance.
  • Developed NACH outbound and inbound collection systems for streamlined interbank fund transfers.
  • Performed integration and component testing of NACH payment systems for production-grade reliability.
  • Designed charge calculation and partTrans modules for SWIFT payment flows to ensure accuracy in transactional metadata.

Software Engineer @ TCS

10/2021 – 08/2022, Kolkata

  • Enhanced supervisor recommendation UI, headers/footers and validation logic.
  • Tech Stack: HTML, CSS, JavaScript, Java, REST APIs, Maven

Education

B.E. in Computer Science – University Institute of Technology, Burdwan (2017–2021, 8.38 CGPA)

XII – Delhi Public School, Varanasi (2014–2016, 84.2%)

X – Jawahar Navodaya Vidyalaya, Varanasi (2009-2014, 9.8 CGPA)

Skills

Languages: TypeScript, JavaScript, Python, HTML, CSS
Backend: Node.js, Express, Fastify, Socket.IO, BullMQ, Drizzle ORM, Knex, Loopback, Node-RED
Frontend: React, Vite, TailwindCSS, TanStack Query, Zustand
Databases: PostgreSQL, Redis, SQLite
Cloud & Infra: Cloudflare Workers, Cloudflare Durable Objects, Wasmer, Docker, Turborepo, Wrangler
Tools & Other: HashiCorp Vault, Salesforce, Lightning Web Components, Git, Postman, RabbitMQ, Jenkins, Zod, Cheerio

Projects

  • Zyvora: Jira-like SaaS project management platform — Kanban, sprints, real-time collaboration, RBAC, BullMQ notifications (TypeScript monorepo) – Live Demo
  • Chhakkadi: Real-time multiplayer platform for 3 Indian card games (Chhakkadi, Dehla Pakad, Call Break) with bot AI and Cloudflare Durable Objects support, plus a Capacitor-based Android app available as a direct APK download – Live Demo
  • WatchTower: SaaS web scraping & notification platform — monitors sites/RSS/APIs and delivers to Discord, Slack, Telegram via BullMQ pipeline – Live Demo
  • Cuff the Bluff: Real-time Liar's Dice game for up to 15 players with bot AI, built on Cloudflare Workers + Durable Objects – Live Demo
  • Splendor: Digital implementation of the Splendor board game for 2–12 players with bot AI, in-game chat, and procedural SVG art – Live Demo
  • Cabo: Real-time multiplayer Cabo card game for 2–15 players with bot AI and Show mechanic, built on Cloudflare Workers + Durable Objects – Live Demo
  • Notes App: Google Keep–like app with auth, tagging, search – Live Demo
  • LLM Chat App: Custom LLM chat interface built with Cloudflare Workers – Live Demo
  • Discretization of Continuous Datasets: Python-based ML preprocessing – GitHub

Achievements

  • Facebook Hacker Cup Global Rank: 690 (2021)
  • TCS CodeVita Global Rank: 1899 (2020)
  • CodeChef SnackDown – Round 3 (2019)

Languages

Hindi, English

Interests

Programming, Puzzles, Chess