I will build your saas web app with senior engineering, from mvp to scale

M
marians302
M
marians302
Marian S

Vetted Pro

Level 2

build your saas web app with senior engineering, from mvp to scale
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build your saas web app with senior engineering, from mvp to scale
Vetted by Fiverr Pro

Marian S was selected by the Fiverr Pro team for their expertise.

About this gig

Most SaaS products don't fail on the idea. They fail on the build: slow, fragile, impossible to change.


I build SaaS the way I built my own.


SelfManager.ai is my live AI SaaS: 400k+ lines of code, 14 AI features, Stripe subscriptions, team plans, an API with webhooks and an MCP server for Claude and ChatGPT. I know what it takes, and what it costs, to run one.


WHAT YOU GET

- Architecture that fits your stage, not over-engineered

- Logins, teams, roles and permissions

- Stripe subscriptions, trials and billing

- Admin panel, emails and analytics

- AI features where they add real value

- Clean code you own, documented


HOW I WORK

Senior engineering with AI agents for speed. I review and understand every line. Regular demos, so you always see progress.


WHY ME

- Fractional CTO and lead software engineer for a private aviation company (2022-2026) and a US marketplace (since 2026)

- 250+ clients since 2014, rated 4.93


Tell me what you're building and where it is now: idea, prototype or live. I'll tell you the fastest safe path.

  • Website type

    • Saas

  • Programming language

    • HTML & CSS
    • JavaScript
    • TypeScript
    • React
    • Angular

  • Website features

    • Payment
    • Customer support
    • Analytics
    • Chat
    • Membership
    • Booking
    • Calendar
    • Dashboard
    • User Authentication
    • Admin Panel
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Marian S

Marian S

Vetted Pro

AI Tools, Fractional CTO, Web Apps, Ecommerce, Senior Software Engineer

5.0(7)

Level 2

Marian S is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.

Vetted for

  • Website Development

  • Website Maintenance

  • FromRomania
  • Member sinceNov 2021
  • Avg. response time1 hour
  • Last delivery3 months

  • Languages

    English, Romanian, Croatian, German
Hi, I'm Marian. Senior software engineer and technical partner. I build AI tools, web apps, premium websites and Shopify stores that hold up. One of the most successful freelancers since 2014. 250+ clients, rated 4.93, trusted by US businesses. - Fractional CTO and lead software engineer for a private aviation company (2022-2026) and a US marketplace (since 2026) - Technical partner to a Shopify Plus brand past $10M in sales - Built SelfManager.ai, my own AI SaaS: 400k+ lines, 14 AI features, MCP server, API & Webhooks What are you building?

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