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Daniel Kazansky

Professional experience

Evidence-based timeline from media and web delivery through frontend and full-stack engineering, senior production ownership, and AI-native systems. 7+ years across digital products and software delivery; building software since 2019.

  1. Full Stack AI Developer

    Independent

    Present

    Independent · Remote

    Independent full-stack work on AI-native systems: Telegram assistants, CRM-connected booking flows, and controlled tool use with explicit approval and persistence.

    Contributions

    • Built a multilingual LangGraph appointment bot for booking, rescheduling, and cancellation through Telegram with live CRM availability.
    • Implemented identity checks, approval-controlled writes, and persistence so consequential actions require explicit confirmation.
    • Packaged delivery with Docker and automated tests around tool-using agent workflows.

    Outcomes

    • Personal contribution: Public LangGraph Appointment Bot demonstrates controlled tool use, live availability, and approval gates—without implying automation at scale.

    Technologies: LangGraph · Telegram · EspoCRM · Docker · Python · TypeScript

  2. Senior Software Engineer (Reputation Team)

    Upwork

    Long-term contractor · Remote

    Embedded long-term contractor on the Reputation team, owning marketplace reputation and enforcement UI domains end-to-end with PagerDuty production responsibility.

    Contributions

    • Owned frontend delivery for Partner Certified Talent and Freelancer Aggregated Strengths across Profiles, Search, and Onboarding.
    • Contributed to the Job Success Dashboard migration to a new evaluation model.
    • Led Vue 2 to Vue 3 modernization of legacy reputation UI modules.
    • Designed an AI-assisted development workflow with Cursor, Claude Code, and MCP integrations for Figma, Linear, GitHub, and Confluence.

    Outcomes

    • Platform scale: Primary frontend ownership on Partner Certified Talent work reaching a marketplace with millions of freelancers (platform scale, not personal headcount).
    • Personal contribution: Held PagerDuty on-call responsibility for production reputation surfaces.

    Technologies: Vue 3 · Nuxt · TypeScript · Cursor · MCP

  3. Senior Software Developer

    Subbly®

    Full-time · Remote

    Subscription commerce product engineering spanning merchant setup UX, AI-assisted onboarding, checkout, and a flexible design system.

    Contributions

    • Refactored subscription setup UX to shorten merchant time-to-configure.
    • Developed an AI-powered onboarding chatbot for merchant activation flows.
    • Optimized cart and payment flows to reduce abandonment.
    • Built a custom design system for reusable storefront and admin UI.

    Outcomes

    • Team outcome: 20% faster merchant setup and 25% higher AI-assisted onboarding completion for 500+ merchants/users.
    • Team outcome: 15% lower cart and payment abandonment.

    Technologies: TypeScript · Vue

  4. Lead Software Developer in a startup

    Woki.one

    Part-time · Remote

    Led a four-person engineering team building a modular Vue 3 CRM with configurable UI under startup delivery pressure.

    Contributions

    • Led a 4-person team delivering a modular Vue 3 CRM architecture.
    • Engineered configurable UI features for customer-specific customization.
    • Drove frontend performance work to reach a 95+ Google PageSpeed score.

    Outcomes

    • Team outcome: Delivered a modular Vue 3 CRM with configurable UI for the product.
    • Personal contribution: Reached a 95+ Google PageSpeed score on primary CRM surfaces.

    Technologies: Vue 3 · TypeScript

  5. Software Developer

    Capgemini Engineering

    Full-time · Remote

    Built React/TypeScript/Redux analytics interfaces for enterprise marketing and forecasting in a Lerna monorepo.

    Contributions

    • Developed interactive dashboards handling large analytics payloads over HTTP.
    • Worked in a Lerna monorepo with shared React/TypeScript packages.
    • Supported marketing and forecasting workflows for enterprise clients.

    Outcomes

    • Platform scale: Analytics interfaces handling 10M+ data points over HTTP (platform/system scale).

    Technologies: React · TypeScript · Redux · Lerna

  6. Full Stack Developer

    Kazansky.dev

    Freelance · Remote

    Freelance full-stack delivery with Vue and Vuex. Scope kept conservative: LinkedIn lists skills without a detailed public role description.

    Contributions

    • Delivered freelance full-stack features using Vue and Vuex.
    • Supported client web delivery as an independent contractor under Kazansky.dev.

    Outcomes

    • Personal contribution: Completed a multi-month freelance engagement delivering Vue/Vuex client work.

    Technologies: Vue · Vuex

  7. Frontend Developer

    Malevich

    Full-time · Remote

    Frontend and mobile delivery for operational tooling, equipment scanning, and multilingual e-commerce on React, Next.js, GraphQL, and React Native/Expo.

    Contributions

    • Built React/GraphQL/Next.js operational tooling used by hundreds of daily operators.
    • Delivered a React Native/Expo panel for equipment scanning workflows.
    • Shipped a multilingual React/Redux e-commerce platform with Node.js backend collaboration.

    Outcomes

    • Platform scale: Operational tooling serving 500+ daily users (platform scale).

    Technologies: React · Next.js · GraphQL · React Native · Expo · Redux · Node.js

  8. Web Developer

    Woman Insight Franchise

    Full-time · Hybrid · Odesa / Remote

    Maintained a Vue.js and PHP Laravel franchise site with marketing automation, ad/email/CRM integrations, and custom quizzes over a large contact database.

    Contributions

    • Maintained Vue.js and PHP Laravel site features for franchise marketing.
    • Operated databases supporting 300K+ contacts with marketing automation workflows.
    • Integrated ads, email, and CRM systems; built custom quizzes for lead capture.

    Outcomes

    • Platform scale: Supported marketing systems over a database of 300K+ contacts (platform scale).

    Technologies: Vue.js · PHP · Laravel · JavaScript

  9. Project Manager

    DALS Media

    Full-time · On-site · Odesa, Ukraine

    Managed and grew a network of media websites, using SEO to generate partner-campaign traffic alongside WordPress and frontend design work.

    Contributions

    • Managed a network of media websites and coordinated partner advertising campaigns.
    • Used SEO to generate traffic for partner campaigns.
    • Contributed WordPress and frontend design work across the media network.

    Outcomes

    • Team outcome: Grew partner-campaign traffic through SEO across the media-site network.

    Technologies: WordPress · SEO · HTML · CSS

Have a system that needs to ship?

I help teams build AI-native products, connect agents to real business workflows, and ship reliable full-stack systems.

Get in touch

Emailkazanskydaniel@gmail.com

Telegramslnnzmtl