Available to hire
Hello! I am Marian Drobchak, a Senior Software Engineer with over 10 years of experience building scalable, high-performance web platforms. I specialize in Shopify, JavaScript/TypeScript, React, Node.js, and ecommerce integrations, and I am passionate about delivering visually engaging, conversion-optimized sites that align with brand identity and drive online sales.
Beyond crafting reliable, fast software, I love helping lifestyle brands thrive in the digital marketplace. I have led cross-functional partnerships with designers, marketers, and clients, integrated 3PL logistics and secure payment systems, and built analytics-driven experiences to boost growth for B2B and B2C in multiple markets.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Work Experience
Senior Web Developer at Bluesoft
October 1, 2021 - PresentArchitected and delivered over 20 ecommerce websites across lifestyle, retail, and SaaS sectors using Shopify and React, increasing average conversion rates by 35%. Led redesign of a B2C luxury goods platform, achieving 48% faster load times and a 25% sales uplift through UX and page speed optimization. Integrated Shopify with 3PL logistics providers to automate fulfillment workflows and reduce manual tasks by 60%. Implemented multi-currency and localized checkout systems using Shopify Markets for European customers, improving international sales by 40%. Configured secure payment gateways (Stripe, PayPal, Klarna) compliant with PSD2/SCA standards. Developed custom Liquid and Hydrogen templates aligned with brand guidelines for visually rich product storytelling. Optimized SEO and analytics tracking through GA4, Meta Pixel, and Google Tag Manager for measurable marketing impact. Built reusable React components and hooks, improving development efficiency by 30% across projects. Mentored
Senior Software Engineer at Bluesoft
October 1, 2021 - PresentEngineered secure authentication flows with Supabase, JWT-based role mapping and route protection across multiple enterprise-grade applications. Developed and optimized Next.js/React dashboards with SSR for improved SEO and load performance, reducing TTFB by 35%. Delivered Stripe Checkout and PayPal Smart Button integrations, handling server-side order creation, webhooks, and persistent order states in Supabase. Spearheaded integration of OpenAI conversational APIs, enabling contextualized prompts with real-time session handling. Rebuilt a failing shopping cart system by introducing persistent state management with Supabase and React Context API, achieving 99.9% transaction accuracy. Enhanced Row-Level Security policies in Supabase to secure user data and enforce RBAC without performance trade-offs. Migrated critical services to Vercel, configured environment variables and secrets for secure deployments across dev/staging/production. Created scalable backend endpoints with Next.js API
Senior Software Engineer at Bluesoft
October 1, 2021 - PresentEngineered secure authentication flows with Supabase (JWT-based role mapping and route protection), built Next.js/React dashboards with SSR to improve SEO and load times. Implemented Stripe Checkout and PayPal Smart Button integrations with server-side order creation and webhooks, persisting orders in Supabase. Led integration of OpenAI conversational APIs for contextual prompts and real-time session handling. Rebuilt a fault-tolerant shopping cart with persistent state via Supabase/React Context API, achieving 99.9% transaction accuracy. Tightened data security by expanding RLS policies in Supabase and enforcing RBAC. Moved services to Vercel with secure environment and secret management. Created scalable Next.js API routes for multi-step checkout and AI-driven recommendations. Automated email notifications and invoicing workflows for compliance. Wrote unit/integration/end-to-end tests using Jest and Cypress with 90%+ coverage. Collaborated with designers to implement responsive UI/UX
Senior Software Engineer at Bluesoft
October 1, 2021 - PresentLed secure authentication flows using Supabase with JWT-based role mapping and route protection across enterprise-grade applications. Developed and optimized Next.js/React dashboards with SSR to improve SEO and load performance, reducing time-to-first-byte. Implemented Stripe Checkout and PayPal Smart Button integrations, handling server-side order creation, webhooks, and persisting order states in Supabase. Integrated OpenAI conversational APIs for contextual prompts and safe session handling. Rebuilt a fault-tolerant shopping cart with persistent state via Supabase and React Context API, achieving high transaction accuracy. Refined row-level security policies in Supabase to secure user data without sacrificing performance. Migrated services to Vercel with environment variables and secret management for secure deployments. Built scalable backend endpoints using Next.js API Routes supporting multi-step checkout and AI-powered recommendations. Automated email notifications and invoicing
Senior Software Engineer (Remote) at Bluesoft
October 1, 2021 - PresentEngineered secure authentication flows with Supabase, implementing JWT-based role mapping and route protection across multiple enterprise-grade applications. Developed and optimized Next.js/React dashboards with SSR for improved SEO and load performance (TTFB reduced by 35%). Delivered Stripe Checkout and PayPal Smart Button integrations, handling server-side order creation, webhooks, and persistent order states in Supabase. Led integration of OpenAI conversational APIs with contextualized prompts and real-time session management. Rebuilt a failing shopping cart system using persistent state management with Supabase and React Context API, achieving 99.9% transaction accuracy. Enhanced RLS policies in Supabase for secure data access. Migrated services to Vercel with environment variables and secrets for secure deployments. Created scalable backend endpoints with Next.js API routes, supporting multi-step checkout and AI-powered recommendations. Automated email notifications and invoicing
Full Stack Developer at Transform Agency
June 1, 2021 - October 6, 2025Developed scalable web solutions using React, Node.js, and Shopify, powering B2C and B2B ecommerce sites with seamless product management. Integrated payment gateways and 3PL APIs, reducing order fulfillment time. Created dynamic landing pages for marketing campaigns, improving ad conversion rates. Worked closely with UX designers to implement mobile-first, pixel-perfect interfaces. Built reusable UI components using React and Storybook, streamlining cross-project consistency. Configured Google Analytics and Facebook Pixel for precise sales tracking and retargeting. Optimized website performance, achieving Lighthouse scores of 95+ across key projects. Improved SEO visibility, helping multiple client sites reach top-10 SERP positions for target keywords. Automated build and deployment pipelines using Docker and AWS. Partnered with marketing teams to implement digital ad integrations, increasing ROI through data-driven insights.
Full Stack Developer at Transform Agency
June 1, 2021 - September 15, 2025Built scalable React/Next.js applications for e-commerce clients with integrated Stripe payment flows. Designed and enforced Supabase database schemas supporting thousands of concurrent transactions. Integrated third-party APIs for chatbots, notifications, and analytics, improving client engagement metrics. Improved SEO via SSR and optimized dynamic routing in Next.js, accelerating client acquisition. Created authentication modules with JWT and session persistence. Developed CI/CD pipelines for automated builds and deployments on Vercel and AWS. Implemented unit and functional testing with Jest, reducing post-deployment bugs by 45%. Contributed to Agile processes to deliver sprint goals on time across multiple client projects. Conducted security audits and remediated vulnerabilities to prevent data leaks and unauthorized access. Authored internal best practices for React hooks, component reuse, and code reviews.
Full Stack Developer at Transform Agency
June 1, 2021 - September 15, 2025Built scalable React/Next.js applications for e-commerce clients with Stripe payments. Designed and enforced Supabase schemas to support thousands of concurrent transactions. Integrated third-party APIs for chatbots, notifications, and analytics, boosting client engagement by 30%. Improved SEO via SSR and dynamic routing in Next.js, accelerating client acquisition. Implemented authentication modules with JWT and session persistence, improving login reliability. Developed CI/CD pipelines for automated builds/deployments on Vercel and AWS. Implemented Jest-based unit and functional tests; introduced security audits and vulnerability fixes; authored internal best practices for React hooks and component reuse.
Full Stack Developer at Transform Agency
June 1, 2021 - September 15, 2025Built scalable React/Next.js applications for e-commerce clients with integrated Stripe payment flows. Designed and enforced Supabase database schemas supporting thousands of concurrent transactions. Integrated third-party APIs for chatbots, notifications, and analytics, improving client engagement metrics. Improved SEO through SSR and optimized dynamic routing in Next.js, accelerating client acquisition. Implemented authentication modules with JWT and session persistence, boosting login reliability. Developed CI/CD pipelines for automated builds and deployments on Vercel and AWS. Conducted unit and functional testing with Jest, reducing post-deployment bugs. Collaborated in Agile teams to deliver sprint goals on time for multiple client projects. Conducted security audits and fixed vulnerabilities to prevent data leaks and unauthorized access. Authored internal best practices for React hooks, component reuse, and code reviews.
Full Stack Developer at Transform Agency
June 1, 2021 - September 15, 2025Built scalable React/Next.js applications for e-commerce clients with integrated Stripe payments. Designed and enforced Supabase database schemas supporting thousands of concurrent transactions. Integrated third-party APIs for chatbots, notifications, and analytics, improving client engagement metrics by 30%. Improved SEO through SSR and dynamic routing in Next.js, resulting in faster client acquisition. Created authentication modules with JWT and session persistence, boosting login reliability. Developed CI/CD pipelines for automated builds and deployments on Vercel and AWS. Implemented unit and functional testing with Jest, reducing post-deployment bugs by 45%. Collaborated in Agile teams to deliver sprint goals for multiple client projects. Conducted security audits and fixed vulnerabilities, preventing data leaks and unauthorized access. Authored internal best practices for React hooks, component reusability, and code reviews.
Full Stack Developer at RIVERIT
September 1, 2018 - October 6, 2025Designed and developed web applications with JavaScript, PHP, and MySQL, supporting diverse client industries. Built CMS-based ecommerce solutions using WordPress and WooCommerce, enabling non-technical clients to manage inventory. Integrated secure payment and shipping APIs, facilitating smooth checkout experiences. Enhanced page performance and reliability through caching and lazy-loading techniques. Collaborated with cross-functional teams to translate client requirements into technical deliverables. Implemented version control workflows and deployed on AWS and DigitalOcean, improving uptime and scalability. Introduced automated testing, reducing post-launch bug rates by 25%. Trained clients on CMS management and analytics tracking tools.
Full Stack Developer at RIVERIT
September 1, 2018 - September 15, 2025Designed and developed client-facing web platforms using React and Node.js REST APIs. Implemented multi-role authentication with secure session management. Built dashboards with custom data visualization components for real-time reporting. Delivered cross-browser compatible UI components and optimized backend services to reduce API latency by 25%. Maintained PostgreSQL databases with efficient queries and migrations. Integrated PayPal REST APIs for client e-commerce projects, supporting multi-currency payments. Configured Dockerized development environments for faster onboarding. Ensured code quality with ESLint, Prettier, and CI hooks. Wrote detailed project documentation for client handovers and internal onboarding.
Full Stack Developer at RIVERIT
September 1, 2018 - September 15, 2025Designed and developed client-facing web platforms using React and Node.js with REST APIs. Implemented multi-role authentication flows with secure session management. Built dashboards with custom data visualization components, enabling real-time reporting. Delivered cross-browser compatible UI components tested across Chrome, Firefox, and Safari. Optimized back-end services for API response times, reducing latency by 25%. Maintained PostgreSQL databases, writing efficient queries and migrations for new features. Integrated PayPal REST APIs for client e-commerce, supporting multi-currency payments. Dockerized development environments for faster onboarding. Ensured code quality by setting up ESLint, Prettier, and CI hooks. Wrote detailed project documentation for client handovers and internal onboarding.
Full Stack Developer at RIVERIT
September 1, 2018 - September 15, 2025Designed and developed client-facing web platforms using React and Node.js with REST APIs. Implemented multi-role authentication flows with secure session management. Built dashboards with custom data visualization components enabling real-time reporting. Delivered cross-browser UI components and optimized back-end services to reduce latency. Maintained PostgreSQL databases with efficient queries and migrations. Integrated PayPal REST APIs for client e-commerce projects and configured Dockerized development environments for faster onboarding. Ensured code quality with ESLint and Prettier, and produced detailed project documentation for handovers.
Full Stack Developer at RiverIT
September 1, 2018 - September 15, 2025Designed and developed client-facing web platforms using React and Node.js with REST APIs. Implemented multi-role authentication flows with secure session management. Built dashboards with custom data visualization components, enabling real-time reporting. Delivered cross-browser compatible UI components tested across Chrome, Firefox, and Safari. Optimized backend services for API response times, reducing latency by 25%. Maintained PostgreSQL databases, writing efficient queries and migrations for new features. Integrated PayPal REST APIs for client e-commerce projects, supporting multi-currency payments. Configured Dockerized development environments for faster onboarding. Ensured code quality by setting up ESLint, Prettier, and CI hooks. Wrote detailed project documentation for client handovers and internal onboarding.
Education
Bachelor of Computer Science at Vinnytsia National Technical University
January 1, 2011 - January 1, 2015Bachelor of Computer Science at Vinnytsia National Technical University
January 1, 2011 - January 1, 2015Bachelor of Computer Science at Vinnytsia National Technical University
January 1, 2011 - January 1, 2015Bachelor of Computer Science at Vinnytsia National Technical University
January 1, 2011 - January 1, 2015Bachelor of Computer Science at Vinnytsia National Technical University
January 1, 2011 - January 1, 2015Qualifications
Industry Experience
Software & Internet, Professional Services, Retail, Media & Entertainment
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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