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Vlad Sedenko
Independent web product developer
EU / Poland / Warsaw
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← For you

For SaaS founders

Build the product foundation you can keep iterating on.

I help SaaS founders plan, build and improve web apps: dashboards, roles, billing, admin flows, marketing pages and the support layer after launch.

A SaaS product lives or dies by what happens after the first launch, so I build for the second year, not just the demo. That means an architecture you can extend without a rewrite: clean auth, roles and permissions, a billing model that handles trials, upgrades and failed payments, and data assumptions that hold up as the product grows. The goal is a foundation your future self and future hires can build on.

I also stay on as a technical partner once you go live, because most of the real product work starts there. Instead of a one-off build handed over and forgotten, you get someone who understands the codebase, ships iterations, watches performance and helps you weigh the next roadmap decision. That continuity is what keeps a SaaS from slowly turning into a pile of workarounds.

01 / Diagnose

SaaS problems I solve

  1. 01

    The first version needs real auth, roles and billing

  2. 02

    The dashboard is hard to extend or maintain

  3. 03

    Marketing, product and analytics are disconnected

  4. 04

    You need a technical partner after launch, not just a one-off build

02 / Recommended services

Best starting points

01

SaaS Development

Product architecture and web app delivery.

→
02

Product Discovery

Scope the roadmap before building.

→
03

Product Support

Monthly product iteration and maintenance.

→

03 / How I work with this

How we build

  1. 01Map core roles and flows
  2. 02Choose architecture for the next 12 months
  3. 03Ship the product and marketing layer
  4. 04Keep improving through support

Why this works

What matters

A SaaS frontend is not just UI. It needs maintainable flows, clean data assumptions, analytics, billing edges and a roadmap that does not collapse after launch.

Common questions

Can you take over an existing codebase?+

Yes, that is a common starting point. I begin with an audit of the current architecture, data model and the riskiest areas, then give you an honest read on what to keep, refactor or replace. From there we improve it incrementally rather than forcing a risky big-bang rewrite.

What tech stack do you build on?+

Typically a modern TypeScript stack — Next.js and React on the frontend, with well-supported services for auth, database and billing so you are not tied to anything exotic. I choose boring, maintainable technology on purpose, so hiring and handover stay easy. If you already have a stack, I work within it where it is sensible.

What does ongoing support look like after launch?+

Usually a monthly arrangement sized to your stage: iteration on the roadmap, fixes, performance, and being available when something breaks. You get a partner who already knows the system, not a stranger re-learning it each time. It scales up around launches and down during quieter periods.

Start here

Building or rebuilding a SaaS product?

Send the current state and roadmap. I will reply with the technical risks I see first.

Plan the SaaS build
Vlad Sedenko, Web Product Developer · 10+ years

Vlad Sedenko

Web Product Developer · 10+ years

I personally scope, build and ship — no account managers, no hand-offs. You work directly with the developer doing the work.

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