Independent engineer · 10+ years

Full-cycle engineer: development, automation and technical support

I design and build web and mobile applications: architecture, frontend, backend, deployment. I automate business processes and take over services that already run.

  • DevelopmentFrontend, backend, mobile apps for RuStore, Google Play and App Store
  • ArchitectureScalable system design, architecture decisions, growth planning, legacy remediation
  • AutomationCustomer requests, documentation, analytics and reporting, CRM integrations, services running around the clock
  • Data and financePayment and blockchain transaction tracking, financial reporting, regular financial and product analytics
  • Technical supportWebsite updates, technical maintenance, improvements, bug fixes, testing

Your Git · Your server · Your code

Code and projects on GitHub, working notes on Facebook.

Project / 007In progress

Your product or website under support

WebWebsite / App
PWAMobile interface
MobileRuStore / Google Play / App Store
TelegramBot / automation
Code, deployment and documentation stay with you
Technologies and areas of work
FrontendBackendMobile developmentCMS and frameworksIntegrations and APIsCI/CD and deploymentServers and infrastructureProcess automation
I choose the stack for the task. Specific technologies and code samples are on GitHub and in the project write-ups.
Directions

From development to technical support

Take one direction or combine them into a full cycle: from a new product and automation to maintaining a website that already runs.

Full-cycle development

Websites, web apps and mobile apps: architecture, frontend, backend, deployment and code handover

From $200 for the first weekDevelopment terms

Process automation

Requests, documents, reports, correspondence and internal processes — through integrations and automation

Pilot or projectHow it works

Chatbots and integrations

Telegram, WhatsApp, Mini Apps, CRM and payments — a bot that does the work, not just replies

Fixed price per projectDiscuss a bot

Crypto payment monitoring

Incoming USDT and other assets, payment confirmation, notifications, API and webhooks for CRM

Integration per taskHow it works

Audit and analytics

Technical site audit, product and financial analytics, reports and growth points

On requestRequest an audit

Technical support for websites and services

Maintaining a live website: monitoring, updates, backups, edits and bug fixes

One-off or ongoingLearn more
Full-cycle development

Full-cycle developer: architecture, frontend, backend, mobile apps, deployment

I cover the whole cycle: from the technical spec, scalable system design and architecture decisions to markup, backend, mobile apps, deployment and support. One engineer is accountable for timelines, quality and the result.

Frontend and mobile development

Interfaces, PWA, responsiveness and performance; apps for RuStore, Google Play and App Store on a backend shared with the website

Backend and integrations

Server logic, APIs, databases, integrations with CRM and payments

Architecture and scaling

Scalable system design, architecture decisions, creating and planning architecture, growth without a rewrite from scratch

Quality and launch

Validation of technical and AI solutions, system testing, CI/CD, deployment, documentation. AI agents speed up the result; I own the decision

Automation

Business process automation

As a process automation engineer I break routine into steps and replace repetitive actions with integrations and automation. The goal is to remove specific manual operations, not to adopt a trendy tool.

  • Handling requests and correspondence
  • Documents and invoices
  • CRM and spreadsheets
  • Reports, summaries, regular financial and product analytics
  • Customer support
  • Internal tools
  • Payment verification and invoice reconciliation
  • Services running around the clock and process control
Crypto payments

Crypto payment monitoring for business

A practical option for companies that accept crypto: connect a wallet and get automatic control over incoming payments — no manual address checks or blockchain reconciliation.

What the business gets

  • Automatic detection of incoming payments
  • Order payment confirmation
  • Transaction accounting in USDT and other assets
  • Telegram notifications
  • API and webhook for CRM or e-commerce integration
  • Transaction history and reports

How it works

  1. 01

    Public wallet addresses are connected in watch-only mode

  2. 02

    The service finds incoming transactions and waits for network confirmations

  3. 03

    It confirms the order payment and sends a Telegram notification

  4. 04

    It passes the data to CRM or an online store via API/webhook

  5. 05

    It keeps transaction history and builds reports

Support

Technical website support for business

I take over websites and services that already run. I get into the existing code, close urgent issues and then handle updates and growth according to an agreed plan.

Website support is not only about fixing things when they break. It includes regular updates, backups, security, speed and the small improvements any business accumulates.

Business website support follows one rule: the site has to stay operational and improve with every new iteration

What is included

  • Availability and error monitoring
  • CMS, dependency and security updates
  • Backups and recovery
  • Bug fixes and legacy cleanup
  • Load speed and technical health of the site
  • Growth: new features, integrations, sections and blocks

Who it fits

CMS websiteOnline storeCorporate websiteClient portalCRM system

Formats

One-off help

A specific task: update, fix, speed up, add a block.

Ongoing support

Regular updates, monitoring, backups, priority fixes and growth.

Technical spec

A technical spec for a developer

I draft and agree the technical specification with the client before implementing a task

Task goal

What we are building and why.

Scope and constraints

What is included in the task and how we implement it.

Acceptance criteria

How to tell the task is done.

Testing approach

Testing and user feedback.

Hiring

Hiring a developer: how it works

The process of hiring me as a developer:

  • Up to 8 five-hour Claude Code windows with a top-tier model within the agreed project.
  • Asynchronous work: agreeing on goals, plans and tasks. From me — independent implementation, testing and completion of tasks.
  • 40-minute video calls — one per week. I am always available for urgent questions.
  • Weekly demonstration of the result and agreement on the next priorities.
  • High-quality execution of tasks, exactly on time.
  • Work in your Git and on your server.
  • The code stays with you, with no dependency on my platform.
How it works

A short path from idea to a working product

No six-week discovery phases and no surprises in the invoice.

  1. 01

    Spec and plan

    We fix the goal, scope, platforms, acceptance criteria and constraints

  2. 02

    Agree on priorities

    You get a plan and a task list ordered by value and your priorities

  3. 03

    Weekly builds

    Every week ends with a demo, reporting and agreement on the next stage

  4. 04

    Handover and support

    Code, deployment and documentation stay in your Git and on your server

Why experience matters

Experience is the decisions you do not have to redo

Experience is a fast way to understand what we need and how to achieve it in the simplest way.

More about me
  • Architecture first

    Data, integrations and deployment are decided before the first line of code

  • Review on every change

    Logic, edge cases, security and performance are checked before release

  • System testing

    Scenarios are covered by tests written specifically for each service

  • Quality

    High-quality execution leaves more time for development

  • Full cycle and support

    From spec and architecture to production and maintenance

“We used to lose 30% of bookings because no one answered after 6pm. ProLeadly fixed that overnight. Our revenue went up 22% in the first month.”

Lucia FerreiraOwner, Estudio Cleo
Clients

More than 10 years of building software

From SaaS products to internal tools and bots. Every project starts with a clear scope and ends with code you own.

FAQ

Frequently asked questions

What does website support include?

Availability and error monitoring, CMS and dependency updates, backups, content edits, bug fixes, load speed and site growth. The exact scope is agreed after diagnostics.

What does a full-cycle developer do?

Designs scalable systems and architecture, writes frontend and backend, builds mobile apps, deploys and stays for support. AI agents speed up the work and system testing, but technical decisions and accountability stay with the engineer.

Can you take over an existing website?

Yes. We start with diagnostics: I review the code, access, environment and the list of issues. A rewrite is not always necessary.

Who writes the technical spec?

Usually the client or the product team. I help turn an idea into scope, scenarios and acceptance criteria.

What technologies do you use for a website?

I work with frontend, backend, mobile development, CMS and frameworks, integrations and APIs, CI/CD and infrastructure. I pick the stack for the task, not for a trendy list; specific examples are on GitHub.

How much does development cost?

The first week starts at $200. After that it is either a fixed monthly format or the whole project. I name the exact scope and price after discussing the task.

What is business process automation?

Replacing repetitive manual steps with integrations and automation: requests, documents, reports, correspondence, payment verification. First we describe the process, then we automate it — no automation for its own sake.

How is a process automation engineer different from a developer?

A developer builds a feature; a process automation engineer looks at the whole process: where the data is, who makes decisions, what can be removed. Code is only part of the solution.

How does crypto payment monitoring work?

Public wallet addresses are connected, the service finds incoming transactions, waits for confirmations, sends a notification and passes the data to CRM via API/webhook. Private keys are never transferred.

What happens after the project launches?

Code, access and documentation stay with you. Then you can take the site on support or grow it with individual tasks.

Have a task? Let's define the first step.

Support, development, automation or crypto payments — describe the situation. I will reply with what is realistic and where to start.