I will create a scalable web app and admin dashboard for your business

L
leonardo_costaa
L
leonardo_costaa
Leonardo Costa
create a scalable web app and admin dashboard for your business
Full Screen
create a scalable web app and admin dashboard for your business
Full Screen
create a scalable web app and admin dashboard for your businesscreate a scalable web app and admin dashboard for your business

About this gig

 Stop relying on generic software. Let's build a system tailored to your business.

Are you a business owner needing a custom management dashboard, or a founder launching a complex SaaS? You don't just need lines of code; you need a reliable, secure, and scalable business solution.

With over 4 years of professional experience, I specialize in architecting and developing robust Admin Panels, Custom Business Software (CRM/ERP), and Multi-tenant SaaS platforms designed for real-world production. I focus on building systems that automate your workflows, secure your company's data, and scale effortlessly as your user base grows.

Whether you need to replace messy spreadsheets with a sleek dashboard or build a complex backend infrastructure from scratch, I deliver clean architecture and high-performance results.

What I can build for you:

  • Custom Admin Dashboards & Portals: Manage your users, metrics, and operations in one centralized place.
  • SaaS & Multi-tenant Platforms: Scalable architectures designed to support multiple clients securely.
  • Advanced Authentication: Complex role-based access control (RBAC) and secure login flows.
  • Seamless Integrations: Connecting your app with external servic

  • Programming language

    • C#

  • Expertise

    • Algorithms & Data structures
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • AngularJS
    • jQuery
    • Next.js
    • React.js
    • Vue.js

  • Backend framework

    • Laravel
    • NestJS
    • Node.js
    • ASP.NET Core
    • Supabase

  • AI & low/no code builders

    • Lovable
    • Claude
    • Firebase Studio

Get to know Leonardo Costa

Leonardo Costa

Full Stack Developer

5.0(14)
  • FromBrazil
  • Member sinceFeb 2022
  • Avg. response time1 hour
  • Last delivery2 days

  • Languages

    Portuguese, Spanish, English
My name is Leonardo Costa. I hold a degree in Computer Science and have over 4 years of experience as a software developer. I specialize in building and improving professional web solutions that help businesses grow, improve performance, and increase results. I currently work at a large technology company in Brazil, collaborating with well-known brands and complex digital products. Feel free to send me a message so we can discuss your project and find the best solution.

My Portfolio

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