DVDmitry Voloshyn
@dmitryvoloshyn
Senior software developer specializing in React and Node.js, focused on performance, mentoring, and product delivery.
CanadaWhat I'm looking for
I am a Senior Software Developer with extensive experience building and optimizing React and Node.js applications, mentoring teams, and delivering production-grade products across startups and enterprises. I have led architecture and feature development, refactored legacy codebases for maintainability, integrated third-party APIs, and implemented automated testing to improve quality and performance.
My background includes leadership roles managing teams up to department level, designing application infrastructure, and working across front-end and back-end technologies (TypeScript, Vue, Nest, Perl, SQL, MongoDB). I thrive in Agile environments, collaborate closely with PMs and designers, and focus on measurable improvements to system reliability and developer productivity.
Experience
Work history, roles, and key accomplishments
Senior Software Developer
Total Performance Consulting
Jun 2024 - Present (1 year 8 months)
Designed and led development of a mini application integrated with existing software, improved application performance using React and Node.js (TypeScript), and mentored junior developers and QA automation engineers to raise code quality.
Senior Software Developer
Hivery
Aug 2023 - Jun 2024 (10 months)
Developed and maintained React and Node.js (Nest) applications, refactored legacy code to improve maintainability, integrated third-party APIs and micro-frontend architecture, and implemented automated tests and monitoring (DataDog).
Architecture (Volunteer)
Alberta Kids Sport
Jan 2023 - Mar 2024 (1 year 2 months)
Designed application infrastructure and planned sprints to ensure timely delivery while developing backend features with Nest.js and TypeScript and leading front-end development and client communications.
Mentored junior and mid-level developers, contributed frontend development with Vue.js and TypeScript, and supported backend adjustments including Perl while participating in team lead promotion activities.
Lead Developer
C.T.Co
Mar 2020 - Jan 2022 (1 year 10 months)
Led small teams to design and develop applications (private Dropbox-like system, data collection and statistical apps) using React, TypeScript, and Node.js, and contributed to infrastructure setup on Azure and Ali Cloud.
Department Lead
Dynatech
Aug 2017 - Mar 2020 (2 years 7 months)
Managed multiple teams (up to ~100 developers), selected technologies for projects, and led a major rebuild of a flight booking platform that contributed to Skyluxtravel.com's industry recognition.
Front-end Developer
Murka
Jan 2017 - Jan 2017 (0 months)
Developed frontend for an encapsulated management application within a gaming company, delivering user interfaces for internal management needs.
Teacher
Level-UP
Jan 2015 - Jan 2017 (2 years)
Taught groups of 10–20 students fundamentals of JavaScript, HTML, and CSS, creating lesson plans and hands-on exercises to improve learning outcomes.
Front-end Developer
V-jet
Jan 2014 - Jan 2016 (2 years)
Optimized website visibility on Google and resolved bugs while contributing to team efforts and co-piloting leadership tasks.
Freelancer
Freelance
Jan 2009 - Jul 2012 (3 years 6 months)
Built websites using PHP, WordPress, and PrestaShop, delivering custom features and e-commerce solutions for varied clients.
Education
Degrees, certifications, and relevant coursework
Dnepropetrovsk National University Oles Honchar
Master of Science, Micro Technology
2013 -
Completed a Master's program in micro technology at Dnepropetrovsk National University Oles Honchar.
Availability
Location
CanadaAuthorized to work in
Website
dvoloshyn.vercel.appJob categories
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