Senior-led web engineering for U.S. and European product teams

We modernize and launch web products.

We handle platform modernization, production rescue, and production-ready delivery in your current stack unless there is a clear reason to change it.

  • Work in your stack
  • Small hands-on team
  • Tests before release

Core services

Two ways we can help.

We modernize established platforms without disrupting the business and prepare fragile launches or prototypes for reliable operation.

01

Web platform modernization

Improve an existing platform without discarding the processes, data, and team knowledge tied to it.

  • Review the architecture, delivery workflow, and operational risks.
  • Agree what to keep, replace, and change first.
  • Ship improvements in stages while the service stays available.

You get · A platform your team can maintain and extend.

02

Production rescue & MVP hardening

Stabilize a stalled release, fragile prototype, or MVP built with AI before real users depend on it.

  • Review critical code paths, dependencies, data handling, and security.
  • Fix the failures and bottlenecks blocking release.
  • Add the tests, monitoring, and documentation needed to run the product.

You get · A release plan and a product ready for real users.

Supporting capabilities

Specialist capabilities around the core engagement.

We use these capabilities where they support modernization, production rescue, and a maintainable handover.

A

End-to-end web delivery

Product scope, architecture, frontend, backend, infrastructure, and launch when a compact team is useful.

One team accountable throughout
B

Systems & integrations

APIs, data pipelines, background jobs, and integrations with systems that cannot simply be replaced.

Built around how your systems operate
C

.NET modernization

C#/.NET audits, upgrades, and performance work for systems under real production load.

Core technical specialization

Working together

From first call to release.

Each stage has a defined result, a review, and a decision about what happens next.

  1. 01

    First call

    We discuss the product, the immediate problem, deadlines, and constraints. If our team is not the right fit, we say so.

  2. 02

    Paid audit

    We review the system and return priorities, risks, a technical direction, and a delivery plan.

  3. 03

    Work in stages

    We work in two-to-four-week stages. Each ends with working software, a demo, and a decision on the next stage.

  4. 04

    Launch & handover

    We prepare the release, documentation, and knowledge transfer. Ongoing support is available if needed.

Engineering standards

Every release is reviewed, tested, and ready to operate.

Technical leadership, automated checks, security review, monitoring, and documentation stay part of delivery. AI is one of the tools we may use where it helps.

The same checks apply whether code is written with AI or without it.

  1. 01

    A technical lead reviews the architecture and every change before release.

  2. 02

    Automated tests cover agreed acceptance criteria.

  3. 03

    We check security, dependencies, and licenses.

  4. 04

    Monitoring and documentation are part of the handover.

  5. 05

    We use client-approved tools and keep secrets and personal data out of prompts.

Technical leadership

Roman Markevich

Founder & technical lead

Roman builds and operates production software. His strongest area is C#/.NET, alongside high-load systems, data, messaging, containers, and delivery infrastructure.

Roman leads the technical work at Keelbrace: he sets the architecture, contributes code, reviews critical changes, and remains accountable for technical quality. The studio delivery team works under that technical direction through release and handover.

Roman’s core stack
  • C# / .NET
  • PostgreSQL
  • Kafka
  • Kubernetes
  • Docker
  • CI/CD

Tell us what is stuck

Let’s look at the problem.

Email us a few lines about the product, what is not working, and any deadline or constraint. Your message goes directly to the delivery team.

Discuss a projectNo sales handoff. We ask questions before suggesting scope or price.