I will build custom business web applications

R
randy_rozario
R
randy_rozario
Randy

Level 2

build custom business web applications
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build custom business web applications
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build custom business web applicationsbuild custom business web applicationsbuild custom business web applications

About this gig

Need a custom business application instead of another patchwork of Excel files, manual processes and disconnected tools?


I design and build secure, scalable web applications, APIs and business systems tailored to your workflow.


I can help with:

  • Custom web applications
  • Business process management systems
  • React / TypeScript frontends
  • Node.js / Fastify / Express backends
  • REST APIs and integrations
  • PostgreSQL / SQL databases
  • Authentication, JWT and RBAC
  • Multi-tenant applications
  • Data import and workflow automation
  • Dashboards and operational tools
  • Cloud deployment and production troubleshooting
  • Existing application enhancement and bug fixing


My approach starts with understanding the business problem and requirements, then designing the data model, APIs, security boundaries and application architecture before implementation.


My portfolio includes distributed systems, multi-tenant SaaS, RBAC, lead management, observability and enterprise application architecture projects.


Hourly or project-based work is available.


For larger or unusual requirements, message me before ordering so I can recommend the appropriate scope and architecture.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Source control

  • Frontend framework

    • AngularJS
    • Bootstrap
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • FastAPI
    • Next.js
    • Node.js
    • ASP.NET Core
    • Firebase

  • AI & low/no code builders

    • Lovable
    • Claude
    • Base44
    • Cursor

Get to know Randy

Randy

Admin, Automate, Analyze All in one support

5.0(78)

Level 2

  • FromBangladesh
  • Member sinceOct 2017
  • Avg. response time1 hour
  • Last delivery6 months

  • Languages

    Bengali, English, Hindi
I'm Randy — a Power Platform architect & full-stack developer with 5+ years building production apps for a Fortune 500 logistics company across 5 countries. I've shipped 15+ Power Apps and automations used by 500+ daily users, cutting manual work by ~15 hrs/week and eliminating thousands in yearly costs. ISO 27001 & GDPR certified, so security's built in from day one. Stuck doing something manually that a system should handle? Message me your process — I'll tell you exactly how to automate it.

My Portfolio

Other Software Development Services I Offer

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