Digital Kitty Studio

Software Development Studio in Lisbon

We build React Native apps, web platforms, headless e-commerce, and CRM integrations for European companies. Senior team, EU timezone, milestone-based payments.

47
Completed projects
Active since 2017
Founders — PM & tech lead with 8+ years in enterprise projects

Our tech stack

Next.js
React Native
Medusa.js
Bitrix24
PostgreSQL
Supabase
Node.js
Next.js
React Native
Medusa.js
Bitrix24
PostgreSQL
Supabase
Node.js
Next.js
React Native
Medusa.js
Bitrix24
PostgreSQL
Supabase
Node.js

Sound familiar?

Your business is growing, but the tools can't keep up. Leads get lost between email, messengers, and spreadsheets. Your website can't handle the load. Your field team works on paper while management flies blind. We solve these problems at the intersection of development, automation, and integrations.

CRM Implementation

HubSpot, Bitrix24, Pipedrive, and custom CRM solutions. Funnel setup, integrations with your existing tools, team training.

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Web Applications

Custom CRMs, B2B platforms, dashboards, and internal tools built for your workflows. Next.js, Node.js, PostgreSQL.

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Headless E-Commerce

B2B and B2C online stores on Medusa.js and Next.js. Large catalogs, custom pricing, marketplace integrations.

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Mobile Apps

React Native apps for field teams, B2B services, and internal tools. Offline-first, GPS, CRM integrations.

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Not sure where to start?

We'll run a free 30-minute audit of your current process. We'll find the bottlenecks and suggest 2-3 solutions with rough timelines and budgets.

How we work

Full Control

Weekly demos, transparent metrics, repository access. You see progress in real-time.

Ready for Scale

Growth-ready architecture: from 100 to 1,000,000+ users. Horizontal scaling, fault tolerance.

Risk Minimization

Contract protection, milestone payments, support SLA. Guarantees of refund if requirements are not met.

Measurable ROI

Analytics from day one. You see how each feature affects conversion, LTV, and operating costs.

Predictable Process - From Idea to Production

Five clear stages with fixed results. Each new stage starts after acceptance of the previous one and prepayment of the next.

1

Intro and Discussion

30-60 minutes

First call without obligations. We break down the task, discuss inputs and understand if an audit makes sense.

Understanding the next stepRough estimateAction plan
Schedule a meeting
2

Audit and Design

1-3 weeks

We dive into processes, data and current systems. We form the architecture, requirements, roadmap and a fixed estimate.

Technical documentArchitectural diagramRoadmapFixed estimate
3

Development

1-6 months

Iterative implementation of the agreed scope of work. Every 1-2 weeks we show a working increment and collect feedback.

Test environmentCode accessAPI documentationWeekly demos
4

Production Launch

1-3 weeks

We prepare the release: data migration, testing, monitoring, backups and a controlled launch with a rollback plan.

Production deploymentMonitoring and backupsRunbookAccess transfer
5

Training and Support

1-2 weeks + support

We train users and administrators, resolve questions from the first weeks of operation and, if necessary, move the project to an SLA.

Training sessionsInstructions and regulationsTeam Q&ASLA options

Komsell

E-CommerceDistribution

Komsell: B2B Auto Parts E-Commerce Platform

Migration of an auto parts distributor from a legacy monolith to a headless B2B commerce platform, with 100x faster catalog search and ERP, CRM, and marketplace integrations.

50K+

products in catalog

< 50ms

search response time

×3

online sales growth

0

downtime in the first year

Komsell: B2B Auto Parts E-Commerce Platform
Next.jsMedusa.jsMeiliSearchPostgreSQLRedis
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European auto parts brand

Custom DevelopmentLogistics

SRM System for International Supply Management

×3

less manual work for logistics

60%

time saved on operations

Next.jsNode.jsPostgreSQLSeaRates API

Confidential client

Mobile AppDistribution

FieldOps: Mobile CRM for Field Sales Teams

60%

less time spent on reporting

×2

larger territory coverage

React NativeExpoNode.jsPostgreSQL

Real estate agency

CRM ImplementationReal Estate

Intrum-Based CRM Platform for a Real Estate Agency

40%

faster lead processing

0

lost leads after rollout

Intrum CRMREST APINext.jsWebhooks
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Team - Who will work on your project

Digital Kitty is a family-run studio. We're brothers: Denis has 8+ years building enterprise applications and CRM systems, Daniil leads client strategy and project delivery. Every project is led by one of us personally — no account managers, no broken telephone.

Denis Kosolapov

Denis Kosolapov

CTO

8 years building enterprise systems. I know where they break — and how to prevent it.

LinkedIn
Daniil Kosolapov

Daniil Kosolapov

Head of Growth

My job is to translate business goals into system requirements and make the results measurable.

Frequently Asked Questions - FAQ

Answers to questions asked before starting work.

How long does development take?

It depends on the project's complexity. An MVP of a corporate application or CRM integration takes 2 to 4 months. A full platform from scratch takes 4 to 8 months. We fix exact deadlines in the contract after the audit and requirements agreement.

How is the project price formed?

The price consists of three components: audit and design, milestone-based development, and post-launch support. We work with a fixed estimate and stage-by-stage payments: stage 0 is free, then each stage is paid in advance, and the next one begins after acceptance of the previous one.

What if we don't fit the budget?

We fix the budget in the contract. If additional tasks are identified during the process, they are discussed and estimated separately. We do not bill for work beyond the agreed scope without your consent.

Will I get the source code?

Yes, the source code is fully transferred to you after project completion. You become the sole owner of all development. No lock-in to our infrastructure or tools.

Is there support after launch?

Yes. After launch, we offer SLA support: response to critical bugs within 4 hours, planned updates, and monitoring. Terms and costs are in a separate maintenance agreement.

Do you work with an official contract? Is there VAT?

We only work with an official contract with a legal entity or individual entrepreneur. For Russian clients, we use a Simplified Tax System (no VAT). For international clients, we use a Portuguese entity.

Tell us about your project

A quick intro and initial ideas. Free, no strings attached.

1

Inquiry

2

Conversation

3

Estimate