Full-stack web applications
Build and maintain business-critical web platforms from UI screens to backend workflows.
- React/Next.js interfaces
- API integration and forms
- Admin dashboards and workflow screens
Available for remote full-time and contract work
Senior Full-Stack Engineer for AI, SaaS & business systems.
I help founders, agencies, and small engineering teams turn business workflows into production-ready web applications. I work across frontend implementation, backend APIs, database-backed workflows, authentication, RBAC, deployment, debugging, documentation, and manual QA.
Next.js
React
TypeScript
FastAPI
Node.js
ASP.NET Core
SQL
Docker
AI/RAG workflows
What I do
End-to-end product delivery without heavy supervision.
Best fit: startups, founders, agencies, and small teams that need a reliable senior engineer to own complete features.
Business systems & internal tools
Translate operational requirements into structured, database-backed applications.
- ERP-style workflows
- Authentication and RBAC
- Data import, reports, and audit-friendly flows
AI-enabled product workflows
Integrate AI into useful product experiences, not just demos or model experiments.
- RAG/search pipelines
- Structured extraction and ranking
- AI-assisted matching and automation
Selected work
Proof of ownership across real products.
A mix of public products, private client-style systems, and platform foundations.
HireCTX — AI-powered resume search and recruitment platform
Built from scratch for candidate discovery, resume processing, search, matching, ranking, match scores, and recruitment-focused workflows. Owned architecture, product direction, delivery quality, debugging, and production-facing decisions.
RiceCalc — ERP-style business operations platform
Built and maintained a business operations platform covering admin screens, backend APIs, SQL workflows, authentication/RBAC, uploads, invoices/documents, environment separation, deployment checks, and manual smoke testing.
Subrat DevTools — practical developer utilities
Public developer-utilities platform with a URL shortener and tools such as QR generator, JSON formatter, Base64 encoder/decoder, hash generator, JWT decoder, UUID generator, timestamp converter, regex tester, URL tools, color tools, and content utilities.
Client Automation OS — small business workflow platform
Built toward a subscription-style automation platform, initially focused on preschool and small-business operations: parent communication, task tracking, structured records, internal process automation, sample data, and migration readiness.
Technical range
Practical stack for shipping business software.
I am strongest where product thinking, full-stack execution, database workflows, and deployment discipline meet.
Frontend
React, Next.js, TypeScript, Tailwind CSS, shadcn/ui-style interfaces, responsive admin UIs
Backend
FastAPI, Node.js, ASP.NET Core Web API, REST APIs, authentication, RBAC, integrations
Data
SQL Server, PostgreSQL, MySQL, Prisma, ETL workflows, uploads, reports, structured data models
AI/product
RAG/search workflows, structured extraction, ranking, AI API integration, productized AI features
Deployment
Docker, Ubuntu VPS, nginx, systemd, environment separation, smoke tests, release notes
How I work
Senior ownership with clean execution discipline.
Clarify the business workflow
Break ambiguous requirements into screens, APIs, data flows, permissions, edge cases, and release slices.
Ship in maintainable increments
Prefer focused changes, clear commit boundaries, audit-safe workflow, and production-safe rollout thinking.
Own the boring but important parts
Validation, loading states, error handling, deployment checks, documentation, manual QA, and regression awareness.
Communicate clearly with founders and teams
Comfortable working directly with non-technical stakeholders and converting business goals into shipped features.
Remote collaboration
Need a senior engineer who can own complete product features?
I am open to remote full-time roles and contract work with foreign clients, especially around SaaS products, internal tools, business systems, AI/RAG-enabled workflows, and founder-led product delivery.