Serhii Mytkin - Software Engineering Team Lead

Serhii Mytkin

Software Engineering Team Lead

Full Stack Developer with 10+ years building scalable web applications and leading high-performing engineering teams.

Ukraine (open to international relocation)
* have permissions to cross the national border

About

Software Engineering Team Lead with 10+ years of experience designing, developing, and leading scalable web applications and high-performing engineering teams. Expert in building automation systems, performance optimization, and AI-driven tools that improve efficiency and accessibility.

Proven track record in leading cross-functional Agile teams of 13-18 engineers, mentoring developers, and fostering inclusive, diverse team cultures. Experienced in recruiting talent, managing performance, and creating environments where engineers thrive.

Strong technical expertise in Node.js, React/Next.js, TypeScript, cloud architectures (AWS, Vercel), and machine learning applications. Successfully led distributed teams spanning four continents and managed relationships with high-profile stakeholders including Hollywood executives and investors.

Empathetic leader with real-world understanding of accessibility challenges and a deep commitment to building products used by millions.

6x
Client Growth

Grew client base from 30 to 180+ at DealerTower

95%
Faster Deployments

Reduced website delivery time from weeks to hours

4
Continents Led

Managed distributed teams across 4 continents

99.8%
Uptime Achieved

System reliability after cloud migration to AWS

Projects & Case Studies

Reel Wheels — Visual ScreenshotsView screenshots

A collection of screenshots and UI flows from the Reel Wheels platform (rental/sales marketplace for movie production vehicles).

Next.jsE-commerceUX

Specials Builder — Dealer DashboardOpen demo

Mini-project presentation for an Automotive dealer 'Specials Builder' dashboard demonstrating architecture and trade-offs between React and Sencha Ext JS.

Overview: Tech Choices

  • React JS: Rapid UI development and prototyping, large ecosystem, easy API integration, and lower upfront cost (open source).
  • Sencha Ext JS: 140+ enterprise-grade UI components, high-performance data handling, built-in grids/charts, and enterprise security.

Recommendation: For dealerships managing large, complex datasets and requiring robust, ready-made features, Sencha Ext JS often delivers faster development and lower maintenance. React is ideal for flexible, custom UI and rapid prototyping. Combining both can yield a modern responsive app with strong data handling and rich features.

ReactSencha Ext JSDashboards

Experience

2025 — 2026

Founder / Lead Developer·Blinkerly Tech (EU)

  • Founded and lead innovative company focused on WordPress performance optimization, managing technical strategy and product roadmap.
  • Developed Node.js-based plugin with React admin dashboard that automatically improves website performance, SEO, and accessibility scores.
  • Implemented machine learning algorithms for intelligent code optimization and automated WebP conversion.
  • Established DevOps practices including CI/CD pipelines, automated testing, and cloud deployment strategies.
Node.jsReactMachine LearningDevOpsCI/CD
2024 — 2025

Lead Full Stack Developer / Technical Product Manager·Reel Wheels

Team: NextJS Dev, Full Stack Dev, Backend Dev, UX/UI Designer

  • Served dual roles as Lead Developer and Technical Product Manager, bridging gap between technical implementation and business vision.
  • Conducted weekly strategic meetings with company owners and investors, including 5+ direct meetings with actor/investor Mark Wahlberg and Hollywood film producers.
  • Built Next.js/React-based e-commerce platform from ground up for renting and selling movie production vehicles and specialized equipment to the film industry.
  • Developed custom analytics dashboard for tracking equipment utilization, revenue forecasts, and customer behavior.
  • Directly involved in all major business decisions including technical architecture, budget allocation, hiring strategy, and go-to-market planning.
Next.jsReactNode.jsE-commerceAgileAnalytics
2019 — 2023

Lead Full Stack Developer & Engineering Team Lead·DealerTower

Team: 2 Next.js Devs, 1 Sr. Backend Dev, 2 UX/UI Designers, 1 DevOps Engineer + QA & Product

  • Led and grew international engineering team from 2 to 8 members across four continents, navigating diverse communication styles and cultural backgrounds.
  • Architected revolutionary automated website generator using Python microservices, Node.js APIs, and React/Next.js dashboards — reducing deployment time by 95% (from weeks to hours).
  • Grew client base sixfold (30 to 180+ dealership clients), dramatically improving company revenue and market position.
  • Developed AI-powered chatbot using OpenAI GPT models that could autonomously build dealership websites from natural language conversations.
  • Conducted 2-3 weekly executive meetings with company owners, C-level executives, and key investors.
  • Led cloud migration to AWS with Docker, Kubernetes, and CI/CD pipelines — achieving 99.8% uptime.
  • Championed WCAG 2.1 AA/AAA accessibility standards across all products.
ReactNext.jsNode.jsPythonAWSDockerK8sOpenAITDD
Mar — Dec 2023

Lead Full Stack Developer·DatGate Heavy Machinery Department

Team: 1 Backend Developer, 1 Designer

  • Designed and developed comprehensive e-commerce platform for selling Komatsu heavy machinery and construction equipment.
  • Implemented complex filtering system for equipment specifications and integrated real-time pricing engine.
  • Conducted regular meetings (2-3 times weekly) with company leadership and industrial equipment dealers.
Next.jsReactNode.jsE-commerceCMS
Apr — Jun 2019

Shopify Developer·Freelance / Remote

  • Developed custom Shopify themes and functionalities for global clients through Upwork and Freelancer platforms.
ShopifyLiquidJavaScriptCSS
2017 — 2019

Senior Web Application Developer·International Remote Team

  • Collaborated with distributed Agile teams (6-10 members) across US, Europe, and Asia using Scrum methodology.
  • Mentored 2 junior developers in Vue.js, Laravel patterns, and professional development practices.
  • Delivered large-scale web applications serving millions of users using Vue.js, Laravel, Node.js, and MySQL.
Vue.jsLaravelNode.jsMySQLScrum
2015 — 2017

Web Developer·TemplateMonster

  • Developed and maintained web templates and CMS modules (OpenCart, WordPress).
  • Worked extensively with HTML, CSS, JS, jQuery, and PHP.
HTMLCSSJavaScriptjQueryPHPWordPress

Skills

Technical Skills

Languages

JavaScriptTypeScriptPHPJava EE

Frontend

React.jsNext.js (Pages/App Router)Vue.jsSencha Ext JSHTML5CSS3/SASS/Tailwind

Backend

Node.jsExpressLaravelRESTful APIsGraphQL

Databases

MySQLPostgreSQLMongoDBRedis

Cloud & DevOps

AWS (S3, EC2, Lambda)DockerKubernetesVercelCI/CD Pipelines

Testing

JestCypressTDDE2E Testing

AI/ML

OpenAI APIML AlgorithmsGemeni Google CloudTensorFlow Basics

Tools & Practices

Git/GitHubJiraFigmaPair ProgrammingCode ReviewsMicroservices

Accessibility

WCAG 2.1 AA/AAAARIAScreen Reader Testing

Leadership & Management

Team Leadership (3-8 engineers)People Development & MentoringRecruitment & OnboardingAgile/Scrum MasterStakeholder ManagementCulture BuildingCross-functional CollaborationTechnical CommunicationKnowledge Sharing

Education

Master's Degree, Artificial Intelligence Systems

Petro Mohyla Black Sea State University

2010 — 2016

Contact

Let's work together

I'm open to new opportunities and would welcome the chance to bring my technical leadership, cross-cultural communication skills, and proven track record of team development and business impact to your organization.