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Hi, I’m Bogdan Bak. I’m a Senior Full-Stack Developer with over 10 years of experience building scalable SaaS, eCommerce, and CMS platforms. I specialize in React and Node.js, with additional experience in Vue.js and PHP and AI-powered applications. I focus on performant UIs, secure APIs, and real-time data solutions in cloud-native environments.\n\nRecently I’ve focused on integrating AI agents, vector databases, and semantic search pipelines into production systems. I’m passionate about modern frontend architectures, backend efficiency, and clean, maintainable code in agile, cross-functional teams.…Hi, I’m Bogdan Bak. I’m a Senior Full-Stack Developer with over 10 years of experience building scalable SaaS, eCommerce, and CMS platforms. I specialize in React and Node.js, with additional experience in Vue.js and PHP and AI-powered applications. I focus on performant UIs, secure APIs, and real-time data solutions in cloud-native environments.\n\nRecently I’ve focused on integrating AI agents, vector databases, and semantic search pipelines into production systems. I’m passionate about modern frontend architectures, backend efficiency, and clean, maintainable code in agile, cross-functional teams.

Bogdan Bak

Full Stack Developer, Developer, Web Developer, +5

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Hi, I’m Bogdan Bak. I’m a Senior Full-Stack Developer with over 10 years of experience building scalable SaaS, eCommerce, and CMS platforms. I specialize in React and Node.js, with additional experience in Vue.js and PHP and AI-powered applications. I focus on performant UIs, secure APIs, and real-time data solutions in cloud-native environments.\n\nRecently I’ve focused on integrating AI agents, vector databases, and semantic search pipelines into production systems. I’m passionate about modern frontend architectures, backend efficiency, and clean, maintainable code in agile, cross-functional teams.…Hi, I’m Bogdan Bak. I’m a Senior Full-Stack Developer with over 10 years of experience building scalable SaaS, eCommerce, and CMS platforms. I specialize in React and Node.js, with additional experience in Vue.js and PHP and AI-powered applications. I focus on performant UIs, secure APIs, and real-time data solutions in cloud-native environments.\n\nRecently I’ve focused on integrating AI agents, vector databases, and semantic search pipelines into production systems. I’m passionate about modern frontend architectures, backend efficiency, and clean, maintainable code in agile, cross-functional teams.

Available to hire

Hi, I’m Bogdan Bak. I’m a Senior Full-Stack Developer with over 10 years of experience building scalable SaaS, eCommerce, and CMS platforms. I specialize in React and Node.js, with additional experience in Vue.js and PHP and AI-powered applications. I focus on performant UIs, secure APIs, and real-time data solutions in cloud-native environments.\n\nRecently I’ve focused on integrating AI agents, vector databases, and semantic search pipelines into production systems. I’m passionate about modern frontend architectures, backend efficiency, and clean, maintainable code in agile, cross-functional teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Polish

Fluent

Work Experience

Senior Full Stack Engineer at Makolab

March 1, 2022 - June 14, 2024

Built a global SaaS eCommerce platform using React (Next.js) and Node.js with GraphQL APIs and PostgreSQL. Designed microservices architecture for multiple domains and delivered responsive, WCAG 2.1 compliant user interfaces. Migrated legacy frontend components to Next.js improving page load by 40%. Developed secure payment flows with Stripe and PayPal ensuring PCI DSS compliance. Set up CI/CD workflows with GitHub Actions and Docker; provisioned cloud infrastructure on AWS. Authored comprehensive unit and end-to-end tests, mentored junior developers, led architecture reviews, and introduced coding standards that reduced bugs by 30%.

Full-Stack Engineer at IXOPAY

July 1, 2019 - February 28, 2022

Developed a secure payment orchestration platform using Angular and Node.js for API logic. Created dynamic dashboard UIs and reusable component libraries with Angular Material. Engineered RESTful APIs for real-time transaction processing and fraud prevention. Optimized payment flow latency by refining API responses and middleware. Contributed to frontend unit testing with Jasmine and Karma, integrated code coverage into CI pipelines. Participated in threat modeling and implemented token refresh logic to secure sensitive endpoints. Collaborated with cross-functional teams and refactored AngularJS modules to Angular 9+.

Frontend Developer at Fabrique

October 1, 2015 - May 31, 2018

Worked on frontend development for an enterprise-grade CMS platform with AngularJS, migrating core modules to Angular 2+. Integrated UI components with Java backends and templating engines. Built mobile-first, accessible interfaces for editorial teams. Refactored legacy codebases into modern Angular modules, enhancing maintainability and scalability. Streamlined frontend build pipelines with Webpack and SASS.

Senior Full Stack Engineer at Makolab

March 1, 2022 - June 14, 2024

Built a global SaaS eCommerce platform using React (Next.js) and Node.js with GraphQL APIs and PostgreSQL. Designed microservices architecture for various domains including product, order, user, and analytics. Delivered responsive, accessible UIs with Tailwind CSS and Material UI ensuring WCAG 2.1 compliance. Migrated legacy components improving page load times by 40%. Developed payment integrations with Stripe and PayPal ensuring PCI DSS compliance and security. Set up CI/CD with GitHub Actions and Docker and provisioned environments using AWS services. Wrote comprehensive unit and E2E testing suites. Mentored junior developers and introduced coding standards that reduced bugs by 30%.

Full-Stack Engineer at IXOPAY

July 1, 2019 - February 28, 2022

Developed a secure payment orchestration platform using Angular frontend and Node.js backend. Created dynamic dashboards and reusable component libraries with Angular Material. Engineered RESTful APIs for real-time transaction processing and fraud prevention. Optimized API for low latency. Participated in frontend testing and integrated coverage in CI pipelines. Implemented security through threat modeling and token refresh logic. Collaborated cross-functionally and helped migrate AngularJS modules to Angular 9+.

Frontend Developer at Fabrique

October 1, 2015 - May 31, 2018

Worked on frontend for enterprise CMS platform using AngularJS and migrated core modules to Angular 2+. Integrated UI components with Java backend services. Built mobile-first, accessible interfaces for large editorial teams. Refactored legacy codebases into modern Angular modules enhancing maintainability. Used Webpack and SASS to improve build pipelines and asset bundling.

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Architected and delivered a multi-tenant SaaS eCommerce platform using Nuxt 3 (Vue.js) and Laravel, supporting high-traffic international rollouts. Engineered scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting, enabling seamless omnichannel user experiences. Designed and deployed an AI-powered semantic search engine with LangChain, Pinecone, and OpenAI embeddings, increasing product discoverability and a 30% uplift in user engagement. Developed an AI-driven chatbot assistant integrated into B2B dashboards, leveraging GPT-4 to automate FAQs, reporting, and troubleshooting, reducing manual support workload. Optimized frontend delivery with SSR and ISR in Nuxt, consistently achieving Core Web Vitals benchmarks (LCP <1.5s, CLS <0.05). Built a Node.js microservice architecture for webhook orchestration and asynchronous communications, cutting transaction latency by 40%. Implemented PCI-DSS-compliant payment systems with Stripe and PayPal, securing transacti

Full-Stack Engineer at IXOPAY

February 1, 2022 - September 10, 2025

Designed and implemented a payment orchestration platform in Symfony (backend) and Vue.js (frontend), processing secure high-volume transactions. Delivered real-time fraud detection dashboards with Vuex and WebSockets, reducing fraud investigation time by 35%. Built backend services for transaction routing, risk scoring, and RBAC, strengthening compliance and platform resilience. Introduced Node.js microservices for asynchronous workflows (fraud rules, notifications), significantly improving processing throughput. Integrated machine learning anomaly detection pipelines, enhancing fraud detection accuracy and reducing false positives. Advanced CI/CD automation with Cypress, PHPUnit, and GitHub Actions, maintaining 85%+ code coverage across services. Drove cross-framework modernization by embedding React widgets into Vue apps via Web Components, accelerating feature delivery.

Frontend Developer at Fabrique

June 1, 2019 - September 10, 2025

Built accessible, WCAG 2.1–compliant interfaces for enterprise CMS systems using Vue.js, Laravel, and Twig. Developed feature-rich editorial tools for content creation, scheduling, media management, and previews, improving editorial efficiency. Contributed to internal innovation projects with Angular and React, focusing on reusable component libraries for rapid microsite delivery. Modernized the development pipeline with Webpack, Babel, and SASS, introducing linting and pre-commit hooks that reduced regressions. Championed mobile responsiveness and accessibility standards, ensuring platforms consistently passed compliance audits.

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Designed and delivered a multi-tenant SaaS eCommerce platform built with Nuxt 3 (Vue.js) and Laravel to support high-traffic international rollouts. Engineered scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting to enable seamless omnichannel experiences. Implemented an AI-powered semantic search with LangChain, Pinecone, and OpenAI embeddings, increasing product discoverability and user engagement by 30%. Developed an AI-driven chatbot integrated into B2B dashboards (GPT-4) to automate FAQs, reporting, and troubleshooting, reducing manual support workload. Optimized frontend delivery with SSR and ISR in Nuxt to consistently meet Core Web Vitals targets (LCP < 1.5s, CLS < 0.05). Built a Node.js microservice architecture for webhook orchestration and asynchronous communications, cutting transaction latency by 40%. Implemented PCI-DSS compliant payment flows with Stripe and PayPal, securing transactions via JWT and OAuth2. Introduced SonarQube and Lightho

Full-Stack Engineer at IXOPAY

February 28, 2022 - September 10, 2025

Designed and implemented a payment orchestration platform using Symfony (backend) and Vue.js (frontend), processing secure high-volume transactions. Delivered real-time fraud detection dashboards with Vuex and WebSockets, reducing fraud investigation time by 35%. Built backend services for transaction routing, risk scoring, and RBAC, strengthening compliance and platform resilience. Introduced Node.js microservices for asynchronous workflows (fraud rules, notifications), significantly improving processing throughput. Integrated machine learning anomaly detection pipelines, enhancing fraud detection accuracy and reducing false positives. Advanced CI/CD automation with Cypress, PHPUnit, and GitHub Actions, maintaining 85%+ code coverage across services. Drove cross-framework modernization by embedding React widgets into Vue apps via Web Components.

Frontend Developer at Fabrique

June 1, 2019 - September 10, 2025

Built accessible, WCAG 2.1 compliant interfaces for enterprise CMS using Vue.js, Laravel, and Twig. Developed feature-rich editorial tools for content creation, scheduling, media management, and previews, improving editorial efficiency. Contributed to internal innovation projects with Angular and React, focusing on reusable component libraries for rapid microsite delivery. Modernized the development pipeline with Webpack, Babel, and SASS, introducing linting and pre-commit hooks that reduced regressions. Championed mobile responsiveness and accessibility standards, ensuring platforms consistently passed compliance audits.

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Architected and delivered a multi-tenant SaaS eCommerce platform using Nuxt 3 (Vue.js) and Laravel, enabling high-traffic international rollouts. Built scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting. Implemented an AI-powered semantic search with LangChain, Pinecone, and OpenAI embeddings and an AI chatbot integrated into B2B dashboards. Optimized frontend with SSR/ISR in Nuxt to improve Core Web Vitals, and created a Node.js microservice layer for webhook orchestration. Implemented PCI-DSS–compliant payments (Stripe, PayPal) and CI/CD quality gates with SonarQube and Lighthouse. Drove cloud deployments with Docker, GitHub Actions, and AWS. Mentored engineers during biweekly architecture reviews.

Full-Stack Engineer at IXOPAY

February 1, 2022 - September 10, 2025

Designed and implemented a payment orchestration platform (Symfony backend, Vue.js frontend) handling high-volume transactions. Delivered real-time fraud detection dashboards (Vuex, WebSockets) and backend services for routing, risk scoring, and RBAC. Introduced Node.js microservices for asynchronous workflows and ML anomaly detection pipelines. Automated CI/CD with Cypress, PHPUnit, and GitHub Actions, maintaining high test coverage. Updated the UI with cross-framework integration by embedding React widgets into Vue apps via Web Components.

Frontend Developer at Fabrique

June 1, 2019 - September 10, 2025

Built accessible WCAG 2.1 interfaces for enterprise CMS using Vue.js, Laravel, and Twig. Developed editorial tools for content creation, scheduling, media management, and previews. Contributed to internal innovations with Angular and React and created reusable component libraries. Modernized development pipeline with Webpack, Babel, and SASS, added linting and pre-commit hooks, and ensured mobile responsiveness and accessibility compliance.

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Architected and delivered a multi-tenant SaaS eCommerce platform using Nuxt 3 (Vue.js) and Laravel, supporting high-traffic international rollouts. Engineered scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting to enable seamless omnichannel experiences. Designed and deployed an AI-powered semantic search engine with LangChain, Pinecone, and OpenAI embeddings, boosting product discoverability and engagement by 30%. Built an AI-driven chatbot integrated into B2B dashboards to automate FAQs, reporting, and troubleshooting, reducing manual support. Optimized frontend delivery with SSR and ISR in Nuxt, achieving Core Web Vitals targets (LCP <1.5s, CLS <0.05). Implemented PCI-DSS–compliant payment integrations (Stripe, PayPal) with JWT and OAuth2. Developed a Node.js microservice architecture for webhook orchestration, cutting transaction latency by 40%. Deployed via Docker, GitHub Actions, and AWS (EC2, Lambda, RDS, S3, CloudFront). Mentored engineers thr

Full-Stack Engineer at IXOPAY

February 1, 2022 - September 10, 2025

Frontend Developer at Fabrique

June 1, 2019 - September 10, 2025

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Architected and delivered a multi-tenant SaaS eCommerce platform using Nuxt 3 (Vue.js) and Laravel, supporting high-traffic international rollouts. Engineered scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting, enabling seamless omnichannel experiences. Designed and deployed an AI-powered semantic search engine with LangChain, Pinecone, and OpenAI embeddings, increasing product discoverability and driving a 30% uplift in user engagement. Developed an AI-driven chatbot assistant integrated into B2B dashboards, leveraging GPT-4 to automate FAQs, reporting, and troubleshooting. Optimized frontend delivery with SSR and ISR in Nuxt, achieving Core Web Vitals benchmarks (LCP <1.5s, CLS <0.05). Built a Node.js microservice architecture for webhook orchestration and asynchronous communications. Implemented PCI-DSS–compliant payment systems with Stripe and PayPal. Introduced SonarQube and Lighthouse auditing into CI/CD pipelines. Directed cloud deployments wi

Full-Stack Engineer at IXOPAY

February 1, 2022 - September 10, 2025

Frontend Developer at Fabrique

June 1, 2019 - September 10, 2025

Built accessible, WCAG 2.1–compliant interfaces for enterprise CMS systems using Vue.js, Laravel, and Twig. Developed feature-rich editorial tools for content creation, scheduling, media management, and previews. Contributed to internal innovation projects with Angular and React, focusing on reusable component libraries for rapid microsite delivery. Modernized the development pipeline with Webpack, Babel, and SASS, introducing linting and pre-commit hooks. Championed mobile responsiveness and accessibility standards, ensuring platforms consistently passed compliance audits.

Senior Full Stack Engineer at Makolab

March 1, 2022 - Present

Architected and delivered a multi-tenant SaaS eCommerce platform using Nuxt 3 and Laravel, supporting high-traffic international rollouts. Engineered scalable REST and GraphQL APIs for catalogs, checkout, authentication, and reporting. Designed and deployed an AI-powered semantic search engine with LangChain, Pinecone, and OpenAI embeddings, increasing product discoverability and engagement. Developed an AI-driven chatbot assistant integrated into B2B dashboards using GPT-4 to automate FAQs and reporting. Optimized frontend delivery with SSR/ISR in Nuxt to improve Core Web Vitals. Built a Node.js microservice architecture for webhook orchestration and asynchronous communications. Implemented PCI-DSS–compliant payment systems with Stripe and PayPal using JWT/OAuth2. Introduced SonarQube and Lighthouse audits in CI/CD, improving accessibility and code quality. Led cloud deployments with Docker, GitHub Actions, and AWS (EC2, Lambda, RDS, S3, CloudFront). Mentored engineers through archi

Full-Stack Engineer at IXOPAY

February 28, 2022 - September 10, 2025

Designed and implemented a payment orchestration platform in Symfony (backend) and Vue.js (frontend) for secure high-volume transactions. Delivered real-time fraud detection dashboards with Vuex and WebSockets, reducing investigation time by 35%. Built backend services for transaction routing, risk scoring, and RBAC. Introduced Node.js microservices for asynchronous workflows and ML-based anomaly detection pipelines. Advanced CI/CD automation with Cypress, PHPUnit, and GitHub Actions, maintaining 85%+ code coverage. Modernized cross-framework delivery by embedding React widgets into Vue apps via Web Components.

Frontend Developer at Fabrique

June 30, 2019 - September 10, 2025

Built accessible, WCAG 2.1–compliant interfaces for enterprise CMS systems using Vue.js, Laravel, and Twig. Developed editorial tools for content creation, scheduling, media management, and previews. Contributed to internal innovation projects with Angular and React, focusing on reusable component libraries. Modernized development pipeline with Webpack, Babel, and SASS, introducing linting and pre-commit hooks. Championed mobile responsiveness and accessibility standards, ensuring platforms passed compliance audits.

Web Developer at Fabrique

October 1, 2015 - June 30, 2019

Built responsive interfaces for an enterprise CMS using Vue.js and PHP backends (Twig, Laravel APIs). Migrated legacy jQuery-based modules to Vue with Vuex, improving performance and maintainability. Delivered custom content blocks, editorial tools, and interactive widgets for content teams. Collaborated on SEO optimization and metadata rendering, integrating early AI-based content suggestions into editorial workflows. Modernized frontend pipelines with Webpack, Babel, and SCSS modules. Ensured WCAG 2.0 compliance and consistent UX across devices.