Senior Frontend Engineer · Available to join immediately
I build frontend systems that make complex products feel simple.
I'm Praveen Kumar. For 7 years I've built Angular and React/Next.js applications for fintech research, SaaS and data-intensive products — and led the teams that ship them.
7 yrs
Frontend: Angular and React/Next.js
8–10 s
faster load on a 20,000-record grid
3
React products built solo, 0 to prod
6+
engineers mentored
Selected work
Case studies
Each project page covers the problem, the constraints, the decisions and trade-offs, and the result.
DDMind
Private equity research and investment analysis platform
8–10 s
faster grid load
An AI-assisted platform for researching equities, debt and company financials, replacing data kept in heavy Excel workbooks. I was main developer, led two developers, and worked directly with the client on requirements and estimates.
Read case study
CCM
Chase Cost Management — contract and vendor management platform
1,000s
vendors managed
A platform for managing thousands of vendors and their contracts, used by about 100 people, with an AI chat for querying contracts. I set up the Next.js foundation, reviewed two developers' work, stabilized the codebase and built two modules.
Read case study
Paper Tiger
Academic research and writing platform
5
modules built solo
A tool that helps students plan, structure, research and write academic papers and manage citations. I built the entire React frontend alone, from an empty repo to production.
Read case study
Live demo
Why virtualization matters, measured in your browser
Render 17,000 rows the naive way, then with virtualization and paged fetching, and compare the numbers yourself. Synthetic data; the technique is the one I used on DDMind.
What I do
Where I add the most value
Data-heavy interfaces
Grids with tens of thousands of rows, config-driven tabs, charts and dynamic forms that stay fast.
Performance
Server-side pagination, virtualization, lazy loading, prefetching and caching, chosen per problem.
Real-time and AI
Streaming LLM chat over WebSockets with switchable OpenAI and Anthropic models, in production apps.
Ownership
From empty repo to production: architecture, tooling, quality gates, estimates and client calls.
Career
Seven years, one path
2019
Joined Finoit as a trainee. Angular 7 on a pet-care booking app.
2020–21
Angular 8 and 10: recruitment SaaS, lawyer hiring platform, Stripe payments.
2021–22
Moved into React. Sole frontend on Qbench's config-driven lab portal.
2023–24
Senior Software Engineer. Built Paper Tiger and Block Power alone.
2025
Led DDMind: data grids at scale, Angular v20, streaming LLM chat.
2026
Set up and stabilized CCM on Next.js. Now open to new roles.
Hiring a senior frontend engineer?
I'm available to join immediately for Angular, React or Next.js roles — onsite, hybrid or remote.