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Denys K. Mobile, Web and React Native Platforms

My name is Denys K. and I have over 2 years of experience in the tech industry. I specialize in the following technologies: Web Development, HTML, JavaScript, Web Application, App Development, etc.. I hold a degree in Master of Computer Science (MSCS), Bachelor of Computer Science (BCompSc). Some of the notable projects I’ve worked on include: React Native Development for iOS Storage Optimization Utility, Next.js Front End for Project Management Platform, React Native Migration for Privacy First Social Circles, React Front End for AI Hospitality Inbox, React Front End for CRM Pipeline and Lead Routing, etc.. I am based in Volochysk, Ukraine. I've successfully completed 15 projects while developing at Softaims.

My expertise lies in deeply understanding and optimizing solution performance. I have a proven ability to profile systems, analyze data access methods, and implement caching strategies that dramatically reduce latency and improve responsiveness under load. I turn slow systems into high-speed performers.

I focus on writing highly efficient, clean, and well-documented code that minimizes resource consumption without sacrificing functionality. This dedication to efficiency is how I contribute measurable value to Softaims’ clients by reducing infrastructure costs and improving user satisfaction.

I approach every project with a critical eye for potential bottlenecks, proactively designing systems that are efficient from the ground up. I am committed to delivering software that sets the standard for speed and reliability.

Main technologies

  • Mobile, Web and React Native Platforms

    2 years

  • Web Development

    1 Year

  • HTML

    1 Year

  • JavaScript

    1 Year

Additional skills

Direct hire

Potentially possible

Previous Company

MobiDev

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Experience Highlights

React Native Development for iOS Storage Optimization Utility

I joined mid project to overtake a partially built mobile client, finalize the iOS release, and make the storage scan, duplicate detection, and secure cleanup features production ready. I implemented native scanning bridges, tuned performance, tightened data protections, and drove the final QA and store submission before handing the project over to an external agency.

Next.js Front End for Project Management Platform

Front end for a work management platform that unifies boards, tasks, messages, time tracking, invoicing, and files. I designed the Next.js architecture, led performance work on Core Web Vitals, and shipped an offline first experience for timers and task edits while keeping UI responsive under heavy project loads.

React Native Migration for Privacy First Social Circles

Replaced separate native apps with a single React Native codebase while preserving a privacy first model. The work spanned a staged migration, a shared design system, data adapters for the existing API, and a careful rollout so circles, ephemeral posts, and temporary chats behaved identically for every user.

React Front End for AI Hospitality Inbox

Built the real-time inbox UI for a lead management assistant used by hospitality venues. Owned message rendering, operator overrides, and scheduling interfaces in React with Next.js and TypeScript. Focused on timeline performance, structured conversation design, and error-resilient UX.

React Front End for CRM Pipeline and Lead Routing

I led design and development of the pipeline board and lead routing layer in a React-based dealer CRM. I owned the drag-and-drop kanban UX, integrated smart filtering and assignment logic, and ensured fast rendering for high-volume teams. This module became the core of daily rep workflows and tied together tasks, messages, and lead stage data.

Education

  • Lviv Polytechnic National University

    Master of Computer Science (MSCS) in Computer engineering

    2020-01-01-2022-01-01

  • Ternopil Ivan Puluj National Technical University

    Bachelor of Computer Science (BCompSc) in Computer ENGINEERING

    2015-01-01-2020-01-01

Languages

  • English
  • Ukrainian

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