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Senior, architecture-led B2B product studio

Launch a focused B2B MVP without rebuilding the foundation six months later.

We design and build B2B SaaS products, client portals, dashboards, and internal tools in 4–8 weeks — with the architecture, security, and deployment needed for real users.

Multi-tenant topologylive
acme.appglobex.appumbrella.appBackendtenant-by-domaintenantsusers · rolescontent · APImedia (R2)
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10+ years
Building production software
Senior
Architecture on every engagement
B2B SaaS
Multi-tenant and workflow systems
Hands-on
From discovery to deployment
Services

Three ways to start — each with a concrete output.

Expert directions for working together — not pricing tiers. Whether you need a plan, a product, or a second opinion, every engagement ends with something you can act on.

01Plan

Product Discovery Sprint

For ideas that need clarity before development starts

De-risk the build before it starts. We turn a business brief into a scoped, costed plan with a technical direction you can act on — even if you stop here.

  • Scoped feature list with business priorities
  • Target architecture and data model
  • Fixed-range estimate and delivery roadmap
Start with discoveryTypical duration: 3–5 days
02Build

MVP Build Sprint

For teams ready to build and ship

End-to-end build of a production-ready MVP centred on your most critical business process. Discovery and architecture are included — the sprint covers everything from plan to deployment.

  • Working MVP with the core workflow live
  • Multi-tenant foundation, auth, roles, and deployment
  • Handover docs and a clear path to the next stage
Plan your buildTypical duration: 4–8 weeks
03Review

CTO / Architecture Review

For existing products or plans that need a senior second opinion

A senior technical review of an existing codebase, product, or external development plan. We identify what to fix, what to cut, and what it should realistically cost.

  • Architecture and codebase audit with findings
  • Prioritised technical plan and cost-reduction opportunities
  • Realistic delivery roadmap
Request a reviewTypical duration: 1–2 weeks
Process

From brief to live product.

A clear path with defined entry points — you can join at any stage, and a senior engineer stays involved the whole way through.

01

Discovery

3–5 days

We map the core business process, define scope, and agree on what success looks like. You leave with a plan and an estimate — even if you stop here.

Entry: You have an idea or a problem to solve.

A scoped plan, architecture brief, and a fixed estimate.

02

Architecture

2–4 days

A senior engineer designs the data model, tenancy strategy, and system boundaries. This is the foundation everything else is built on — and where costly mistakes are avoided.

Entry: You have a scope but need the technical direction.

A validated data model, tenancy strategy, and system boundaries.

03

MVP Build

4–8 weeks

We build the core workflow end to end — UI, backend, roles, and deployment — in tight weekly increments you can review and steer.

Entry: You have a validated plan and a committed budget.

The core workflow live and a tested production deployment.

04

Handover

2–3 days

You receive a documented, owned codebase and a roadmap for the next stage. We hand off cleanly or stay on as your fractional architecture partner.

Entry: Your MVP is live and the team is ready to take ownership.

A documented, owned codebase with a clear path to v2.

Concept cases

How we'd approach the brief.

Sample reference solutions that show the depth of thinking before we write a line of code.

Every case below is a designed sample — not a record of a specific past client.
Technical approach

The principles behind every build.

A consistent architectural foundation — tailored to the product, not dictated by a template.

Architecture

One backend serves every tenant, resolved by domain. All data is scoped and isolated per tenant with its own users and roles — clients are fully separated while you operate one system.

One backendTenant by domainIsolated data

Security & roles

Role-based access control (RBAC) with explicit permission checks at every boundary. Secrets are managed in the platform environment, never in the repository.

RBACLeast privilegeSecrets in env

Deployment & ownership

You own the repository, infrastructure, and deployment pipeline from day one. CI builds, tests, and ships on every merge. No vendor lock-in on the codebase.

You own the repoCI/CD includedCloud portable

Technology choices

The stack is selected around product scale, compliance, integrations, and operating cost — not around a fixed template.

Next.jsTypeScriptPostgreSQL

Typical stack: Next.js, TypeScript, PostgreSQL, Cloudflare, Vercel, AWS — Payload CMS when content workflows require it.

The stack is selected around product scale, compliance, integrations, and operating cost — not around a fixed template.

Who you work with

Mykola Tunyk

Software Architect & Hands-on Engineer

Software architect and hands-on engineer with 10+ years of experience building SaaS platforms, cloud infrastructure, and production web applications.

The same person who makes the architectural decisions stays involved in implementation. You won't be handed off to a junior team after the kickoff — fewer translation layers, faster decisions, and an MVP whose foundations were chosen on purpose.

Expertise
AWSGCPCloudflareVercelNext.jsTypeScriptPostgreSQLNode.js
LinkedIn
Why it matters

Grounded in the niche

We have designed and shipped multi-tenant B2B products. The patterns here are ones we have built, tested, and maintained — not theory from a case study.

Senior architecture from day one

A senior engineer owns the load-bearing decisions on every engagement. No junior-led guesswork on the choices that are expensive to undo.

A maintained production foundation

We start from a vetted multi-tenant foundation that handles auth, tenancy, roles, and deployment — so the standard setup work is already behind us.

Speed without throwaway code

Fast does not mean disposable. What we ship in weeks is structured to support the next stage of the product — not a demo that needs rebuilding under load.

Transparent scope and pricing

Clear stages, clear budget ranges, and fixed estimates where it matters. You know what you are getting and what it costs before development starts.

// approach
Lay the minimal correct architecture first. Ship the core process. Build what is needed to support the next stage — not what might be needed someday.
Who it's for

A good fit — and an honest no.

We do our best work for a specific kind of engagement. We're direct about the projects we decline.

Good fit

  • B2B SaaS founders with a defined scope and budget
  • Operations-heavy service businesses digitising a workflow
  • Agencies productising internal expertise into a client-facing product
  • Teams with a responsible product owner and decision-maker in place

Not a fit

  • Equity-only engagements without a committed budget
  • Free prototype requests before any commercial agreement
  • Multiple unrelated products combined into a single MVP scope
  • Projects without a responsible product owner or decision-maker
  • Budgets that do not cover discovery and production-quality delivery
Pricing guidance

Investment ranges, not SaaS tiers.

Senior architecture and production delivery have a realistic cost. These ranges are a starting point — final pricing depends on scope, integrations, compliance, and delivery timeline.

Discovery Sprint
from $1,500

Scope, architecture brief & estimate

Focused MVP
from $10,000

One focused core workflow, end to end

Multi-tenant SaaS MVP
typically $20,000–50,000+

Full production-ready multi-tenant product

Architecture Review
from $2,000

Audit of existing product or external plan

A realistic budget protects the parts users rarely see but every production product needs: security, deployment, data integrity, and maintainability.

Final pricing depends on scope, integrations, compliance requirements, and delivery timeline. We provide a fixed-range estimate after discovery.

FAQ

Common questions.

Answers to what founders and teams typically ask before starting.

Have a focused B2B product to validate or build?

Bring the workflow, constraints, and target launch date. We'll tell you what is realistic before you commit to development. We reply within one business day.

hello@tunyk.com

We are here

Bucharest · remote across EU & US

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