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Keel

Software development agency

Your project.Our responsibility.

We design, build and launch custom digital products — from MVPs to full-scale software solutions.

product-systemproduction
web appnext.js · reactmobile appios · androidjobsqueue · cronapigateway · authdatabasepostgresqlservicesdomain logicai layerllm · retrievalintegrationscrm · paymentsRELEASE PIPELINEdiscoverybuildqalaunch
  • Web
  • Mobile
  • SaaS
  • AI
  • Automation
  • Custom Software

From idea to production. One partner. One responsibility.

The model

You bring the problem. We build the solution.

Keel takes ownership of the development process — from technical discovery and team formation to development, QA and launch.

Flexible distributed team assembled around your project.

  • 01

    One partner

    One team coordinates the entire development process.

  • 02

    Project ownership

    We manage execution, communication, deadlines and technical delivery.

  • 03

    Flexible expertise

    We assemble the right specialists around the requirements of each project.

  • 04

    Built to scale

    Start with an MVP and evolve it into a complete product.

  1. Your idea
  2. Keel
    1. Strategy
    2. Team
    3. Development
    4. QA
    5. Launch
  3. Product

Process

From idea to production

A clear sequence with visible checkpoints. You always know what's happening, what's next and what it costs.

  1. 01

    Discovery

    We understand the business, users, goals and technical requirements.

  2. 02

    Strategy & Estimate

    We define scope, architecture, timeline and estimated budget.

  3. 03

    Team

    We assemble the right specialists for the project.

  4. 04

    Development

    The product is built in structured development cycles.

  5. 05

    QA

    Testing, bug fixing, performance and quality control.

  6. 06

    Launch

    Deployment, release and transition to ongoing development.

Not sure about scope or budget yet?

Describe the idea in a few sentences. We'll come back with questions and a first estimate.

Get a project estimate

How we work

A team built around your project.

We don't force every project into the same team structure. We select the expertise required for your specific product.

Not every project needs every role.

The team is formed around the task — and can change as the product moves from MVP to growth.

One project lead stays accountable for scope, timeline and delivery.

Example team compositions

  • Project ManagerIn this team
  • UI/UX DesignerIn this team
  • Frontend DeveloperIn this team
  • Backend DeveloperIn this team
  • Mobile DeveloperNot needed here
  • QA EngineerIn this team
  • DevOps / AI SpecialistNot needed here

Illustrative examples. The actual team is defined after discovery.

Why Keel

Why work with us

  1. 01

    Business-first approach

    We build software around business goals, not technology for technology's sake.

  2. 02

    One point of responsibility

    You don't have to coordinate multiple freelancers and vendors.

  3. 03

    Flexible expertise

    The team adapts to the project instead of forcing the project into a fixed structure.

  4. 04

    Transparent execution

    Clear scope, milestones, communication and delivery.

  5. 05

    Long-term partnership

    We can stay involved after launch and continue developing the product.

Work

Selected work

Concept and internal projects that show how we approach architecture, scope and delivery. Client case studies will be published here with permission.

  • Concept / Internal Project

    Fieldline

    Type: Custom Software · Mobile

    Operations platform for field service companies: job scheduling, dispatch, a technician mobile app and client reporting in one system.

    Technologies
    Next.jsFlutterNode.jsPostgreSQLDocker
    Concept focus
    Offline-first mobile workflow and a dispatch model that replaces spreadsheets and messenger chats.
    View concept: Fieldline
  • Concept / Internal Project

    Ledgerline

    Type: SaaS · Web

    Billing and subscription console for B2B SaaS teams: plans, invoices, payment status and revenue reporting in one dashboard.

    Technologies
    Next.jsTypeScriptNode.jsPostgreSQLStripe API
    Concept focus
    Multi-tenant SaaS architecture with clear separation between billing logic and the payment provider.
    View concept: Ledgerline
  • Concept / Internal Project

    Docsight

    Type: AI Solution

    Internal AI assistant that answers employee questions from company documents, with source references and access control.

    Technologies
    PythonOpenAI APIPostgreSQL / pgvectorNext.js
    Concept focus
    Retrieval pipeline with source citations, permission-aware search and an evaluation set for answer quality.
    View concept: Docsight

Technology

Technology that fits the product.

We choose technology around the product — not the other way around.

The stack depends on the project.

Requirements, team, budget and long-term maintenance decide the stack — not habit or trends.

Frontend
ReactNext.jsTypeScript
Backend
Node.jsPythonJavaPHP
Mobile
FlutterReact NativeSwiftKotlin
AI
OpenAILLM APIsPythonAI integrations
Databases
PostgreSQLMySQLMongoDB
Cloud
AWSGoogle CloudAzureDocker

FAQ

Questions we hear often

How much does software development cost?

It depends on scope, complexity, team composition and timeline. After a short discovery conversation we prepare an estimate with a breakdown, so you can see where the budget goes before work starts.

How long does development take?

A focused MVP can take a few weeks; larger products usually take several months. We commit to a timeline once the scope is defined — not before.

Do you work with startups?

Yes. We help founders define the smallest version worth building, launch it, and plan how it grows.

Can you develop an MVP?

Yes. We separate must-haves from nice-to-haves, build the core and keep the architecture ready for the next stage.

Can you work with an existing development team?

Yes. We can take ownership of a defined part of the product — a module, an integration, a mobile app — and align with your team on architecture, code review and releases.

Do you provide ongoing support?

Yes. After launch we can continue with maintenance, fixes, improvements and new features in an agreed format.

Do you sign NDAs?

Yes, when required. We're happy to sign one before you share project details.

Can you work with clients internationally?

Yes. We work remotely and take on projects from Ukraine, Europe, the US and other regions. Communication is in English or Ukrainian.

Start here

Have a project in mind?

Tell us what you're building. We'll help you understand what it takes to bring it to production.

What happens next

  1. 1

    We review your request

    And come back with clarifying questions.

  2. 2

    Intro call

    We discuss goals, users, constraints and timing.

  3. 3

    Scope & estimate

    You get a proposed scope, team, timeline and budget.

What do you need?
Project stage
Estimated budget

We use your details only to respond to this request. NDA available on request.