PapChap

Unix · Java · DevOps

Software and infrastructure you can rely on

We design, build and run server-side systems — from Java code to Linux servers and CI/CD — and advise on sound technical decisions.

Discuss a project Our services

What we do

Development

Server-side applications, APIs, web services and integrations in Java — built to be maintained for years.

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DevOps and infrastructure

Linux servers, containers, CI/CD and monitoring — a stable environment for your applications.

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Consulting

Architecture and code audits, performance tuning.

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About us

We are a Ukrainian engineering company specializing in server-side development and infrastructure. We take projects end to end: architecture, code, deployment and operations.

We also consult on systems that already run: reviewing architecture, untangling legacy code, automating deployments or speeding up slow services.

Oleksandr Kryviakin

Oleksandr Kryviakin

Founder, software engineer

Software engineer focused on Unix, Java and DevOps. Personally responsible for every project, from the first conversation to running in production.

Our principles

Engineering quality

Thoughtful architecture, automated tests and code review are part of every project, not an option.

Transparency

Clear estimates, regular demos and honest status updates — you always know where the project stands.

Pragmatism

We choose proven technologies that solve your problem, not whatever is fashionable this month.

Long-term support

We do not disappear after launch: monitoring, maintenance and further development.

How we work

  1. Discovery

    We learn your goals, constraints and existing systems.

  2. Proposal

    You get a solution outline, a work plan and an estimate.

  3. Delivery

    Short iterations, regular demos and working results at every step.

  4. Support

    Launch, monitoring and further development of the product.

Technologies we work with

  • Java
  • Spring Boot
  • Hibernate / JPA
  • PostgreSQL
  • Oracle
  • C / C++
  • Android
  • Linux / FreeBSD
  • Docker
  • Kubernetes
  • CI/CD

Have a task or a project idea?

Tell us about it — we will reply and suggest the next steps.

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