Konstantin Krumin

About

I'm a senior software engineer focused on mobile and frontend development, building production apps with TypeScript, React Native, and React. I work across the full stack when needed — from intuitive UIs to the APIs and integrations behind them — with experience shipping reliable software in fast-moving, real-time environments.

Currently at Intellitix, building event technology used on-site at scale. Open to interesting projects and conversations around mobile, frontend, and product engineering.

Experience

  1. 2025 - Now

    Intellitix provides RFID access control, cashless POS, and event operations software for festivals, sports venues, and conventions — high-throughput environments where real-time reliability is critical.

    • Build React Native apps for POS and access control with RFID entry validation and cashless payments
    • Develop React and TypeScript web apps for event configuration and operational dashboards
    • Integrate RFID systems and native Kotlin/Swift for performance-critical functionality
    • Typescript
    • React Native
    • React
    • Kotlin
    • Swift
  2. 2023 — 2025

    BorderPass is a legal tech startup simplifying the visa journey for international students in Canada. I progressed from full-stack developer to team lead, owning immigration workflows end to end.

    • Led developers delivering immigration application flows from requirements through deployment
    • Revamped application processing streams — UI and business logic for a faster, clearer experience
    • Built Permanent Residency flow with Stripe payments and integrated GoodData analytics
    • Established engineering practices through code reviews, mentoring, and sprint planning
    • Typescript
    • React
    • Node.js
    • Next.js
    • GraphQL
    • Sequelize
    • PostgreSQL
    • Jest
    • AWS
  3. 2021 - 2023

    Hölmetrics delivers enterprise employee experience and organizational performance analytics, helping leaders make real-time, data-informed decisions.

    • Led action plans — HR data visualizations with full-stack UI and backend API development
    • Built interactive Highcharts dashboards for organizational data analysis
    • Owned UI, backend APIs, and AWS infrastructure across the development lifecycle
    • Typescript
    • Javascript
    • React
    • Redux
    • Node.js
    • Express.js
    • TailwindCSS
    • Highcharts
    • MySQL
    • AWS
  4. 2020 - 2021

    ICL Services is a project-based IT outsourcing company. As sole frontend developer, I delivered admin and customer-facing flows from Figma prototypes through production.

    • Built admin dashboard from scratch — claims, complaints, and real-time chat
    • Developed customer inquiry flows aligned with business analysts and backend engineers
    • Shipped responsive UI from Figma using React, TypeScript, Redux, and Material UI
    • Typescript
    • Javascript
    • React
    • Redux
    • MobX
    • Material UI

Resume

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