Product engineering · Rails · React · AI

Build and evolve your Rails and React SaaS

Modernize your application, add AI features, and extend your engineering team. We combine hands-on development with technical leadership.

Discuss your project Explore a case study

Your first reply will be from Alexander, our founder. We start in writing.

Where we can help

Rails upgrades and modernization

Assess dependencies, risks and upgrade steps. If an audit is needed, we agree on its scope, timing and price before starting.

AI features for your users

Add image editing, content generation, and assistants to your existing product. We select an approach around your use case, data requirements, and operating costs.

Engineers with technical leadership

Add developers, QA, and DevOps around your product’s needs. We agree on responsibilities, review the work, and demonstrate progress regularly.

Case study

From source data to marketing materials

An anonymized example of marketing automation: connecting data, templates and review to reduce repetitive work.

Property data
Branded templates
Ready-to-use materials

One workflow, from listing to publication

Property data populates branded templates. Agents can edit materials, send them for approval, and prepare them for print or digital channels. Explore the workflow and the engineering behind it.

Explore marketing automation →

Engineering leadership

Alexander Kravchenko

Founder of Maxa Tech, engineering lead

I have worked in software development since 2014. My experience spans hands-on engineering, architecture and building teams. In our first conversation, we discuss your product and a practical place to start.

Email Alexander LinkedIn ↗

How I select engineers

I conduct technical interviews myself, including live coding without AI assistance. I want to see how an engineer thinks, solves problems, and explains their decisions. I believe AI should amplify an engineer’s capabilities, backed by the ability to work independently.

I also look for ownership: understanding the product, asking questions, and following work through to completion. Before an engagement starts, we agree on each engineer’s allocation and availability. To me, a strong team combines technical ability with accountability.

Clear ownership. Visible progress.

You know who is doing the work, how decisions are made, and what comes next.

Engineering discipline
Quality built into delivery
Code review, automated checks, and QA are part of delivery. We demonstrate working changes and document decisions so your team can build on them.
Infrastructure cost
Infrastructure that fits your workload
Our experience includes moving services from AWS Fargate to Hetzner. We assess costs, monitoring, and migration risks before recommending what to change.
Team visibility
Know the people building your product
Agree on each engineer’s role, experience, and rate before work starts. Speak directly with the people making technical decisions.
Team that stays
A team that grows with the product
Several engineers joined us early in their careers and grew into senior roles. Shared experience and mentoring help preserve product knowledge across the team.

What we can build for you

Web applications on Rails and React

Admin panels, customer portals, editors, and dashboards. We develop Rails and React applications and maintain them as product requirements evolve.

Ruby on Rails

React and TypeScript

Your web app in the App Store and Google Play

Extend an existing web application with React Native, push notifications, and native sign-in. We assess reuse, device requirements, and store submission before estimating the work.

React Native

App Store and Google Play

APIs and integrations

Payments, email services, data feeds, CRMs, partner APIs. Documented, versioned and covered with tests, so the next integration does not break the previous one.

REST API and webhooks

Payments, email, data feeds

AI features inside your product

Image editing, content generation, and text assistants integrated into your product. We assess model hosting and data flows for each feature.

Self-hosted models

In production

Browser design editor

A browser editor with templates, protected brand elements, and print-ready output. Built for people who need to create marketing materials without design expertise.

Templates and brand locks

Web-to-print

Email builder on MJML

Drag-and-drop editor that outputs valid MJML and HTML, renders correctly in Gmail and Outlook, and plugs into Mailchimp or your own sending pipeline.

MJML

Gmail and Outlook safe

Team reinforcement and a working process

Add engineering capacity and a clear delivery process: agreed priorities, code review, regular demos, and written updates.

Dedicated engineers

Agreed reporting rhythm

People who know the product and own the work

Our team brings together engineering, QA, design, and DevOps. Meet the people behind the work and learn how we review decisions, share knowledge, and develop engineers.

2017

product engineering since

30+

specialists

Technologies we work with

Working with our engineers

Maksim is a good programmer who knows his craft and pays attention to detail. He has proven himself a strong team player. He completes tasks quickly and to a high standard.

I have worked with many programmers. Maksim is one of those rare developers who can solve any engineering challenge put before him across different areas: design, development and optimization.
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He learns quickly, gets to grips with projects of any complexity and becomes highly productive in a short time. Maksim is the kind of colleague who sets the standard for other developers. I recommend him as a professional web developer skilled in React, TypeScript and Node.js.

Alexander has been a valuable asset for our foundation. He operated in an architect capacity, providing oversight to both our front-end and back-end development.
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With his help we developed a solution that was secure, reliable and scalable. He is a true professional, diligent and responsible. I recommend him to anyone with high confidence.

It was a pleasure to work with Alexander. Strong knowledge of Ruby on Rails and JavaScript sets him apart from other developers. Excellent AngularJS skills and the ability to quickly learn something new make him a highly qualified web developer.

Maksim is undoubtedly a talented developer and was able to solve our most challenging technical problems with ease. He really cares about the project he is working on and always suggests and implements the best solution to achieve business goals. Highly recommended.

I worked with Vladimir on the same project. He is a talented software developer with extremely strong hard skills: he can solve any task in a short time with excellent quality and always writes clean, maintainable code.
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On top of that he is an amazing team member with impressive soft skills. It's a pleasure to work with colleagues like him.

Elena is an absolutely fantastic developer: skilled, well-rounded, curious, and helpful. She was a key contributor to our business and a huge reason for its continued success.
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I strongly recommend Elena and hope we get a chance to work together again.

Vladimir is a talented developer with strong technical skills. He writes clean, maintainable code and works great in a team. A pleasure to collaborate with.

Alexander is a focused, diligent and hard-working engineer. He always responds and helps when asked, regardless of workload. He also has a broad circle of professional contacts, which helps to put a team together quickly.

A practical first step

Start with a defined scope. Decide on the next phase after you’ve seen how we work.

Discuss the product
Tell us what you need. We’ll start by email and arrange a call if useful.
Map the work
Agree on priorities and scope. If a codebase audit is useful, define its deliverables, timing and cost together.
Deliver and review
Review working changes together. Agree on updates and demos around your team’s workflow.

Before we start

Can you work with our existing team?

Yes. We can add engineers to your team or take responsibility for an agreed scope. We define roles, review practices, and communication together.

Who will work on our project?

We agree on the team, responsibilities, and availability before work begins. The size of Maxa Tech is not the number of engineers automatically assigned to your project.

How involved is Alexander?

Alexander joins the first discussion and helps define the approach. We agree on the technical lead and his ongoing involvement as part of the engagement.

What happens after the first message?

We propose a next step based on your situation: an audit, a scoped milestone, or additional engineers. A codebase review is a separate stage with agreed access and deliverables.

Reply within one business day

Start with a message

Tell us what you need. We’ll start by email and arrange a call if useful.