Available to hire
I’m Lukasz Sobiech, a Senior Front-End Developer and Full Stack Engineer who loves architecting scalable, AI-powered systems. Since 2009 I’ve worked across frontend, backend, and AI to build intelligent platforms, chatbots, and robotics-oriented applications. I enjoy turning complex requirements into robust, accessible components using React/Next.js, TypeScript, Python, and modern tooling, while thinking about how systems interact as an architect would.
I specialize in modernizing legacy code, building APIs with Python and FastAPI, integrating AI models, and delivering high-quality UI end-to-end tests. I thrive in remote or hybrid multicultural teams and am passionate about robotics, computer vision, and applying AI-driven vision models to real-world problems. Beyond coding, I lead frontend projects and teams to deliver fast, reliable experiences.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Language
English
Fluent
Polish
Fluent
Work Experience
Web Design Expert, Coding Analyst - Contract (US) at Mercor.com
March 1, 2025 - September 24, 2025Worked directly with a leading AI lab on AI-related projects, completing tasks to help train models. Implemented frontend features using Python, AI, Next.js, Tailwind CSS, React.js, and Redux; contributed to performance optimizations and cross-functional collaboration for scalable frontend solutions.
Head of system development/ Senior Front End Developer – Consultant, Architect at Sanitap.org
October 4, 2024 - September 24, 2025Developed frontend for a cloud-based database and integrated APIs to streamline data management workflows between mWater and Ragic. Built a Surveys page and facilitated data transfer after approvals; employed SSR with Next.js, TailwindCSS, and Vercel Cloud Functions; addressed post-migration hosting issues and advised on future infrastructure.
Senior Front - End Developer – Architect (part time, Sat - Sun) at TheAIKat.com
September 30, 2024 - September 24, 2025Specialized in AI-driven product interfaces using Svelte and Python with Gradio; designed and implemented UI to enhance AI model interactions. Built FastAPI-based APIs to connect frontend with backend for tasks like image retrieval and prompt creation; refined prompts to improve AI interactions and supported POC and MVP projects.
Senior Front End Developer – Architect , hybrid at New Change Currency Ltd.
October 31, 2023 - September 24, 2025Developed new charts for Forwards 365 and real-time FX from scratch using Next.js and Highcharts; created a scalable setup for styling and testing; built numerous components to facilitate knowledge transfer; managed marketing project with Prismic integration and helped establish design processes using Figma.
Lead Front End Developer / Contract , hybrid at Which?
October 31, 2022 - September 24, 2025Implemented OneTrust cookie banner across 15k URLs and multiple codebases; integrated Google Consent Mode with GTM and custom scripts to manage cookies; authored documentation and scripts to share consent across third-party implementations; ensured compliance with latest regulations.
Lead Front End Developer at IBM Services Centre UK Ltd.
February 28, 2022 - September 24, 2025Converted provided journeys into working React components with TypeScript, GraphQL, Context API, and AWS Cloud Functions. Participated in sprints and UI/UX refinements to improve delivery and collaboration with product and design teams.
Senior Software Developer at IBM Services Centre UK Ltd.
April 30, 2021 - September 24, 2025Converted journeys into React components using TypeScript, GraphQL, Context API, ES7, and CSS modules; built APIs on AWS Cloud Functions; contributed to UI/UX discussions and sprint activities; delivered composed DNS and Root File verification UI experiences.
UI Developer onsite at The Thinking Traveller Ltd.
January 31, 2020 - September 24, 2025Built sustainable frontend components; migrated from Vue 1 to Vue 2 with Vuex for state management; introduced new UI components and modernized the frontend stack.
UI Developer at Experian GARLIC
October 31, 2014 - September 24, 2025Worked on frontend modules using Java, Tapestry, Knockout; contributed to responsive design improvements and modern frontend techniques.
UI Developer at Immediate Media Co
April 30, 2014 - September 24, 2025Contributed to a three-sprint project for http://www.youandyourwedding.co.uk; worked with WebForms and MVC4, implementing responsive frontend features.
Frontend Developer at European Destinations (Europe) Ltd.
May 20, 2009 - September 24, 2025Responsible for frontend projects (PHP/Mysql, XHTML, CSS) and delivering updates on travel-focused sites; supported SEO and publishing tasks.
Lead Front End Developer at Win Technologies
September 30, 2010 - September 24, 2025Improved search rankings through frontend work; SEO-driven frontend enhancements; crafted frontend assets and collaborated with developers to boost site performance.
UI Developer at Schrack Technik
June 30, 2011 - September 24, 2025Polished Polish projects/content with Typo3 and Magento; performed SEO tasks and web campaigns; supported content updates and frontend improvements.
Web Development Web Design Expert, Coding Analyst - Contract (US) at Mercor.com
March 1, 2025 - September 24, 2025Independent-contract role on AI-related projects, delivering work in Python, AI, Next.js, Tailwind CSS, React.js and Redux. Tasks included building components and interfaces for AI training tasks and model integration.
Head of System Development / Senior Front End Developer – Consultant, Architect at Sanitap.org
October 4, 2024 - September 24, 2025Led front-end development for a cloud-based database, integrated APIs to streamline data management between mWater and Ragic, built a Surveys page, and enabled data transfer after approvals. Used Next.js, TailwindCSS, Vercel SSR, and cloud functions; addressed post-migration hosting issues.
Senior Front-End Developer – Architect at TheAIKat.com
September 30, 2024 - September 24, 2025Senior front-end consultant for an AI-driven startup using Svelte and Python with Gradio; designed UIs for AI models, built FastAPI-based APIs, and iterated on prompt design to improve AI interactions. Worked on POC and MVP projects for Brand DNA.
Lead Front End Developer at Which?
October 1, 2022 - September 24, 2025Led front-end work on cookie consent strategy across multiple domains, implemented OneTrust banner with GTM, and wrote scripts for cross-domain consent sharing; documented the project and prepared it for future expansion.
Lead Front End Developer at IBM Services Centre UK Ltd.
February 1, 2022 - September 24, 2025Transformed journeys and designs into reusable React components, TypeScript-based UI, GraphQL, Context API, and AWS Cloud Functions; participated in sprints and UI/UX refinements.
Senior Software Developer at IBM Services Centre UK Ltd.
April 1, 2021 - September 24, 2025Converted designs into React components and UI widgets with TypeScript, GraphQL, Context API, ES7, and CSS modules; developed APIs on AWS Cloud Functions and contributed to frontend architecture.
JS Developer / Contract / VUE2 / VUEX at The Thinking Traveller Ltd.
January 31, 2020 - September 24, 2025Built componentized UI in Vue 2 with Vuex, modernized codebase, and migrated from Vue 1 to Vue 2; implemented ES7 features and CSS/Sass for maintainable UI.
UI Developer at Gaming Realms PLC
May 31, 2017 - September 24, 2025Implemented new features and UX in an agile environment, built prototypes, and conducted AB testing with analytics tools to optimize promotions.
UI Developer at GoHenry Ltd.
August 1, 2016 - September 24, 2025Created mobile-first prototypes and implemented UI using JavaScript, jQuery, HTML, CSS, SASS, and Bootstrap.
UI Developer at Experian Garlic (Cardinal Place); Experian
October 31, 2014 - September 24, 2025UI development work across Experian projects, focusing on responsive design and client-side features.
UI Developer at 192business.com / 192.com
January 31, 2014 - September 24, 2025Front-end development across 192business and related sites, focusing on HTML/CSS/JS and responsive UI.
Web Development Web Design Expert, Coding Analyst - Contract (US) at Mercor
March 1, 2025 - October 17, 2025Direct collaboration with a leading AI lab on AI-related projects, delivering frontend components and integrations using Python, Next.js, Tailwind CSS, React.js, and Redux for AI-powered features.
Head of System Development / Senior Front end Developer – Consultant, Architect at Sanitap Ltd
October 4, 2024 - October 17, 2025Led frontend development for a cloud-based database, integrated APIs (mWater, Ragic), built a surveys page for approvals, implemented Next.js SSR, Tailwind CSS, and Vercel Cloud Functions to enable seamless data transfer and secure funding.
Senior Front end Developer – Consultant , Architect (part time, Sat - Sun) at TheAIKat.com
September 1, 2024 - October 17, 2025Worked on AI-driven frontend solutions using Svelte, Python, Gradio; designed and implemented FastAPI-based APIs to retrieve generated images and prompts for OpenAI; contributed to POC and MVP for Brand DNA with AI technologies.
Lead Front end Developer / Contract , hybrid at Which?
October 1, 2022 - October 17, 2025Implemented cookie consent mode (OneTrust) across 15k URLs, integrated GTM and custom scripts, and authored documentation to maintain ongoing compliance.
Lead Front end Developer at IBM Services Centre UK Ltd.
February 1, 2022 - October 17, 2025Converting journeys into reusable React components with TypeScript, GraphQL, Context API, and AWS cloud functions; contributed to UI/UX refinements and sprint planning.
Senior Software Developer at IBM Services Centre UK Ltd.
April 1, 2021 - October 17, 2025Front-end component development with React, TypeScript, GraphQL, and serverless AWS functions; collaborated in agile ceremonies and UI/UX discussions.
JS Developer / Contract / VUE2 / VUEX at The Thinking Traveller Ltd.
January 1, 2020 - October 17, 2025Maintained and upgraded front-end using Vue2/Vuex; migrated from Vue1 to Vue2, implemented new features, and refactored UI components for maintainability.
UI Developer at Gaming Realms PLC
May 1, 2017 - October 17, 2025Collaborated on UX improvements, built prototypes for cross-platform devices, and conducted AB tests with Optimizely and GTM to optimize landing pages.
UI Developer at GoHenry Ltd.
August 1, 2016 - October 17, 2025Created mobile-first prototypes using HTML, CSS, SASS, and jQuery; contributed to responsive design and frontend architecture.
UI Developer at Experian GARLIC
October 1, 2014 - October 17, 2025Focused on frontend delivery within a large enterprise setting; collaborated on responsive UI components and performance improvements.
UI Developer at Immediate Media Co
April 1, 2014 - October 17, 2025Involved in sprints for a WordPress/.NET-based project; implemented front-end components, responsive design, and accessibility improvements.
Web Designer, Web Developer, Content Specialist / Contract at European Destinations (Europe) Ltd.
May 1, 2009 - October 17, 2025Developed and maintained the site, delivered content, graphics, and HTML/CSS improvements; supported SEO and analytics efforts.
SEO Executive at Win Technologies
September 1, 2010 - October 17, 2025SEO strategy and optimization across Polish market; achieved improved search rankings and online visibility.
Webmaster / SEO Specialist at Schrack Technik
June 1, 2011 - October 17, 2025Polish and Polish-language content management, SEO optimization, and campaigns across multiple channels.
Education
Bachelors of Science in Computer Science at WSH
November 7, 2024 - November 7, 2024B.Sc. in Information Systems and Technology at WSH Radom Academy of IT
January 1, 2004 - December 31, 2009Electronic Technician in Computer Networks and Systems at KOP
January 1, 1999 - December 31, 2004B.Sc. in Information Systems and Technology at WSH Radom Academy of IT, PL
January 1, 2004 - January 1, 2009Electronic Technician in Computer Networks and Systems at KOP, PL
January 1, 1999 - January 1, 2004Post Graduate Program in AI and Machine Learning – Applied Data Science with Python at Purdue
August 1, 2025 - September 24, 2025Bachelor of Science (B.Sc.) in Information Systems and Technology at WSH Radom Academy of IT (Poland)
January 1, 2004 - January 1, 2009Electronic Technician in Computer Networks and Systems at KOP (Poland)
January 1, 1999 - January 1, 2004Qualifications
SEO PRO Certificate
December 10, 2010 - September 24, 2025SEO Certificate
December 10, 2009 - September 24, 2025Mobile App Analytics Fundamentals Certificate (Google Analytics)
December 19, 2014 - September 24, 2025Understanding TypeScript
November 1, 2022 - January 27, 2023Vuex Demystified - Workshop
August 20, 2018 - September 24, 2025Purdue Post Graduate Program in AI and Machine Learning – Applied Data Science with Python
August 1, 2025 - September 24, 2025SEO PRO Certificate
May 20, 2010 - September 24, 2025SEO Certificate
December 10, 2009 - September 24, 2025Mobile App Analytics Fundamentals Certificate (Google Analytics)
December 19, 2014 - September 24, 2025Vuex Demystified
August 20, 2018 - September 24, 2025Understanding TypeScript
November 1, 2022 - January 27, 2023Post Graduate Program in AI and Machine Learning – Applied Data Science with Python
August 1, 2025 - September 24, 2025Understanding TypeScript - TypeScript with React JS or Node JS / Express
November 1, 2022 - January 27, 2023Mobile App Analytics Fundamentals Certificate (Google Analytics)
December 19, 2014 - October 17, 2025SEO PRO Certificate
May 20, 2010 - October 17, 2025SEO Certificate
December 10, 2009 - October 17, 2025Purdue Post Graduate Program in AI and Machine Learning – Applied Data Science with Python
August 1, 2025 - October 17, 2025Industry Experience
Gaming, Software & Internet, Media & Entertainment, Education, Professional Services
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