Product scope, architecture, infrastructure, front end, back end, testing, release and years of operation - one engineer for the full software development cycle. Twenty-five years, 130+ projects, clients who stay for a decade, senior teams led when a project needed more hands than mine, and Claude Code as the multiplier today.
The roles a software project normally splits across six people. I have held every one of them, usually at the same time, and the person who promises is the person who builds, tests and ships.
The first conversation, the scope on one page, what not to build, weekly demos with numbers. Clients stay 8 to 17 years because there is no one between them and the code.
System design, data model, integration boundaries, build-versus-buy calls - for payment rails, marketplaces, industrial systems, DeFi protocols and AI pipelines, designed to be handed off.
AWS, Cloudflare, Docker, Terraform, CI/CD, on-prem and hybrid deployments. The cloud bill is a design input, not a surprise at the end of the month.
Front end, back end, APIs, databases, workers, browser extensions, plugins - TypeScript, Python, PHP, SQL and whatever the legacy system speaks.
I test what I build: Cypress and Playwright end-to-end suites, unit tests as a release gate, load and regression runs before every release - not a separate department, a habit.
Fifteen years hiring and leading small senior squads, up to ten client engagements in parallel. Today the squad is AI agents under the same gates. When a job is bigger than one person, I bring in people I have worked with for years: a vetted senior team is up in days, with the architecture and the review still mine.
I run Claude Code every day as a workshop of agents: scoped tasks, review, tests, deploy. 9,700+ commits across 74 repositories in the last 90 days, with my review as the gate before anything ships.
Eight years as the exclusive engineering partner of an ACH and digital-check platform: Plaid Link and bank verification, Dwolla transfers, an NMI card gateway and Stripe, merchant onboarding and risk state, and a versioned partner API that other platforms embed. Regulated money movement under live traffic.
A custom platform for a 10,000-SKU fashion retailer that ran fifteen years and its full Shopify migration with SEO equity intact; a multi-vendor US and Canada marketplace; Magento and POS integrations; storefronts for beauty, wine and grocery brands.
Seventeen years with a scoreboard manufacturer: quote and configurator flows on top of a content and CRM platform. Lately a parts-search engine over industrial catalogs, an operator console for industrial machinery, and controller code for factory machines (PLC, Structured Text).
Product engineering for DeFi protocols - liquid staking, governance-incentive marketplaces, tokenized yield, NFT lending - and a web3 security firm: Next.js interfaces with ethers.js and web3.js, wallet integrations, on-chain indexing (Subgraph, Substreams), node operation on AWS.
A search platform on MLS feeds that ran fourteen years: thousands of programmatic pages, an in-house CRM and email automation, organic traffic as the growth channel. Luxury listings and a commercial real-estate investment firm alongside it.
The first AI Engine Optimization platform, built end to end: four apps, crawl and audit workers, an MCP server, a Chrome extension and a WordPress plugin. A multi-tenant AI chatbot and voice platform; Telegram bots and mini-apps; Claude and OpenAI in production, RAG over company data, document extraction at batch scale.
Programmatic SEO, Google Ads and analytics wired into CRMs, per-client tracking scripts served from a CDN, an AI-visibility program that moved a manufacturer's score from 33 to 90, and migrations off WordPress and Webflow onto fast static stacks.
Three properties for one film business - an arthouse cinema, a distributor and a production company - with an online streaming platform on an AWS backend, an admin portal for content and users, and scalable video distribution.
Plaid Link across an ACH and digital-check platform: link-token issuance, re-authentication and update mode for expired items, instant and micro-deposit verification; Dwolla funding sources and transfers, an NMI card gateway and Stripe alongside them - under live merchant traffic and regulated money movement.
Google, Shopify, CRM and ad-platform connections across multi-tenant products: consent flows, refresh-token storage and rotation, per-tenant credentials, and re-auth paths for when a provider revokes access. The clean half of aggregation.
A real-time market-data recorder for a marketplace with no public API: GraphQL operations captured from the web client, authenticated browser sessions, adaptive rate limiting with 429 backoff, anti-bot and fingerprint handling, hundreds of concurrent live streams inside a fixed request budget, evidence behind every recorded fact. Plus collector fleets over SEC EDGAR full-text search, CourtListener, SAM.gov, regulator feeds and MLS.
A versioned partner API (v1/v2) with API-key auth, per-app audit logging and OpenAPI docs,
so other platforms could open bank accounts, move money and bill their own customers through
ours; a Bearer-keyed public API serving /openapi.json and hosted docs, shipped
with a reference client that shows what the integration should feel like; an MCP server, a
Chrome extension and a WordPress plugin in the official directory.
The surfaces a customer's own users touch: the bank-connect flow, hosted billing and checkout links partners generate through the API, per-client tracker scripts served from a CDN, embeddable chat widgets and mini-apps - dropped into someone else's product and never thought about again.
AWS, Cloudflare, Docker, Terraform and GitHub Actions; migrations between clouds and onto plain VMs when managed services stop earning their bill; on-prem and hybrid deployments where the data has to stay in the building; Linux administration since the managed-hosting days.
Taking over what someone else left behind: PHP, .NET, Elixir, Go, WordPress plugins, discontinued industrial HMIs. SeamlessChex started as a stalled prototype and stayed for eight years.
Cypress and Playwright end-to-end suites, unit tests as a release gate, infrastructure as code, documentation and handoff - so the system keeps running when I am not looking at it.
Fifteen years hiring and keeping senior squads, up to ten client engagements in parallel, now the same gates run with AI agents alongside me: scoped work, review, tests, deploy. Weekly releases, honest scope before code.
First AI Engine Optimization platform (aeocontent.ai): audits how a site is seen by ChatGPT, Claude, Perplexity and Google AI Overviews, then closes the gaps. TypeScript monorepo with four apps, containerized crawl and audit workers, Postgres, Stripe, an MCP server, a Chrome extension and a WordPress plugin in the official directory. Built end to end and run as the technical lead.
The consultancy behind most of the work below: 130+ projects for clients in payments, e-commerce, manufacturing, real estate, crypto and media; several stayed 8 to 17 years. I own the architecture and write the code, and for fifteen years hired and led delivery squads across 10+ concurrent clients.
Took over a prototype stalled after two years of outside development and re-architected it on AWS in six months; stayed the exclusive engineering partner for the following eight years. Owned bank connectivity end to end - Plaid Link and update mode, Dwolla funding sources and ACH transfers, instant and manual verification, an NMI card gateway, fee, invoice and billing-link flows, merchant onboarding and risk state. Built the external partner API (v1/v2, API-key guard, per-app audit log, OpenAPI docs) that let other platforms embed the payments, plus an end-to-end test suite and infrastructure-as-code.
AI chatbot and lifecycle-engagement platform for B2B SaaS and fintech clients: multi-tenant RAG over customer knowledge bases, vector search, OAuth-connected CRM and ad-platform pipelines, voice and messaging channels. The AI-search experiments here became the AEO Content architecture.
Custom e-commerce platform for a 10,000+ SKU fashion retailer, then a full Shopify migration with SEO equity preserved and custom integrations maintained afterwards. When that chapter closed, helped the same owner relaunch as fine-mineral brand 22sgems.com, with an AI-narrated video catalogue that publishes itself.
Seventeen years with one B2B manufacturer: from a static site to an operational content, CRM and funnel platform, quote and configurator flows, then an AI-visibility program that moved the score from 33 to 90.
Payment infrastructure and merchant lifecycle systems - transaction, dispute and risk events turned into timely merchant-facing communication.
Real-estate search platform built on MLS feeds: thousands of programmatic pages wired into an in-house CRM and email automation, with organic traffic as the growth channel.
Customer-facing portals for a national water-infrastructure operator; and a multi-vendor US/Canada marketplace - vendor onboarding, localized catalogs and marketplace SEO architecture.
Ran web development, digital marketing and the whole e-commerce operation for a distributor: the storefront, the campaigns and the numbers behind them.
Development and quality assurance for a suite of marketing software - the first production code, 2001.
Full timeline with detail on the experience page and LinkedIn.
Alex is an exceptional team lead whom I trust implicitly. I would highly recommend.
Passionate company with thorough knowledge in software engineering from inside and out, as well profound understanding of Google Ads.…
Clearwater, Florida - US Eastern time, with daily overlap for US teams and morning overlap for Europe. Remote by default.
English and Russian, both working languages - written and spoken.