Hands-on engineering for B2B teams

From MVP to Series A — delivery, audits, and fractional technical leadership

KRK · 50.06°N · 19.94°E

B2B SaaS · EdTech · FinTech · Enterprise data

WHY US

Three things that change the outcome

Hands-on, not advisory

An extension of your team. Accountable for what ships

Founder-led delivery

Same person on the call, in the standup, and on the deliverable

One engagement at a time

Your project gets the studio's full attention

Oleksandr Kotliarov — Founder, Kotrov Studio

Industries shipped :

WHO WE WORK WITH

Four engagement shapes for four moments of company growth

Pre-seed founders shipping the first MVP, Series A teams scaling delivery, enterprise orgs running specialized work — pick the shape that fits where you are

Pre-seed / Seed

Early-stage build

Pre-seed and seed companies bringing the first product to market.

MVP architecture
Core feature development
Integration setup
Engagement: Fixed-price MVP Sprint or focused subcontract
Series A · Primary partner

Series A delivery

Growing companies scaling their engineering systems and team.

System architecture review
Process and observability rebuild
Hiring pipeline · technical leadership
Engagement: Audit + Sprint + Fractional Delivery retainer
Enterprise · Specialist

Specialist engagement

Large organizations with established teams that need targeted depth.

Specialized integration work
Architecture advisory
Code review and audit
Engagement: Subcontract or scoped sprint
Pre-Series B · Strategic

Strategic technical partnership

Pre-Series B and enterprise orgs running multi-team initiatives.

End-to-end system design
Multi-team coordination
Long-term technical roadmap
Engagement: Delivery Transformation or long retainer
THE CHALLENGES WE SOLVE

Recognise one of these?
You're in the right place.

Four shapes of pain that show up
across the spectrum we work in.

The MVP needs to ship — and you don't have an engineering team yet

Validated hypothesis, runway, but no in-house build capacity. Time-to-market matters more than building permanent infra. You need a partner who treats scope-lock seriously.

Velocity is dropping as the team grows

PR flow has become a multi-day queue. Roadmap stalls; more hires aren't helping. Hard to articulate what "good" looks like in delivery metrics.

The technical leadership seat is empty

VP Eng just left, or hiring one is a year away. Founder is firefighting daily; architectural decisions are stuck. Senior engineers start asking quiet questions.

Pre-funding event, engineering needs to grow up

Investors will ask about platform, on-call, and security posture. You need a credible plan and an operator to ship it. Six months until the round — not eighteen.

OFFERS

Four ways to engage

Each offer is a specific shape with a specific outcome

HOW WE WORK

From first call to ship

Discovery · scoping · engagement · hand-off or expand. Same operating cadence on every shape.

Discovery call
01

Discovery call

30-minute conversation — no pitch. We map the situation, qualify both sides, and recommend the right offer shape (or another team if we aren't the fit).

Scoping
02

Scoping

We send a one-page SOW or a structured intake. You review, sign, and we set kickoff.

Engagement
03

Engagement

Whether it's an audit, sprint, or retainer — same operating cadence: weekly written updates, regular working sessions, monthly executive review.

Hand-off or expand
04

Hand-off or expand

Audit converts to retainer or walks away clean. Sprint becomes retainer or wraps. Retainer renews quarterly. No surprise extensions.

SHIPPED PRODUCTS

Selected work

Story, numbers, role — for each engagement

Efficlose — Meeting Intelligence SaaS for Revenue Teams

Efficlose — Meeting Intelligence SaaS for Revenue Teams

A meeting intelligence platform built from zero. Recording bots, mobile and desktop capture, an AI signal engine, and 23 CRM and project-management integrations — running multi-tenant across the EU and the US.

Year: series-a
B2B SaaS
Read Case Study
ObjectFirst — Web Platform Rebuild for an Enterprise Storage Vendor

ObjectFirst — Web Platform Rebuild for an Enterprise Storage Vendor

Web platform rebuilt off WordPress onto a Laravel + Nuxt 3 + Next.js stack. Salesforce wired as the system of record, a new subscription product launched alongside the appliance business, marketing attribution unified, and a thirteen-engineer team built from zero.

Year: enterprise
Enterprise
Read Case Study
EduHam — Coding Learning Platform from Zero to Scale

EduHam — Coding Learning Platform from Zero to Scale

A coding learning platform built from scratch in twelve months. Custom multi-language sandbox, instructor authoring tools, real-time classrooms, and a closed-loop analytics stack — running 5,000 concurrent learners by handover.

Year: seed
EdTech
Read Case Study
FinCue — Consumer Lending Platform across Two Markets

FinCue — Consumer Lending Platform across Two Markets

Three storefronts on a single platform across two markets. Defaults down 42% while approvals grew 14 percentage points.

Year: enterprise
FinTech
Read Case Study
WHO YOU'RE WORKING WITH

A small boutique. Senior team. One project at a time

The team is 4–6 people per project. Names available after NDA

Oleksandr Kotliarov

Oleksandr Kotliarov

Founder · Engineering Lead

I build engineering teams that ship — from MVP to Series A delivery.

PLAYBOOKS · DATA · COMMENTARY

Essays for founders and engineering leaders

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FREQUENT OBJECTIONS

What people ask in discovery

Sometimes that's the closest label. We work hands-on across delivery, hiring, and architecture rather than producing strategy decks. The right offer name depends on your stage.
Yes — through the MVP Sprint shape. Fixed scope, fixed price, hard discipline on what's in and what's out. We pick projects we can ship in 6–10 weeks.
Audits are flat-fee with a money-back guarantee. Sprints are fixed-scope. Retainers are monthly. Transformation is milestone-billed. Detailed numbers live on /services.
From discovery to signed SOW typically takes 5–10 business days. Kickoff happens the week after.
Mornings cover Europe. Afternoons cover US East Coast. We do edge-time meetings for SF/LA when needed.
Yes. After a discovery call we introduce 2–3 past clients for a short conversation.
One retainer client at a time. Audits and short sprints can run alongside.

Want to see if we're the right team for the work?

30-minute discovery call. No pitch. We tell you honestly whether we can help — and which offer shape fits.