Krzysztof Oszczapiński

AI Product for E-Learning (Next.js Web App Development)  • Transforming an AI-driven e-learning Proof of Concept (PoC) into a scalable, full-featured SaaS platform. • Accelerating project development velocity by establishing a reusable component library and efficient workflows. • Optimizing the User Interface (UI) and handling real-time AI data streaming for a smooth user experience. • Refactoring the architecture to support modularity and complex state management requirements. • Incorporating coding best practices (including TypeScript migration) to ensure code quality and maintainability. • Ensuring fully responsive design to guarantee a seamless learning experience across desktop, tablet, and mobile devices. Complex Industrial IoT (IIoT) platform for a major enterprise client (React PWA Development) • Collaborating within a large, cross-functional team of specialists with diverse technical backgrounds. • Delivering UI enhancements and performance optimizations to improve user experience. • Proposing and implementing tailored technical solutions to meet challenging business requirements. • Writing comprehensive unit tests and conducting application tuning to ensure stability. • Performing code reviews and providing technical guidance and mentorship to other team members. • Creating detailed documentation throughout the development lifecycle to ensure maintainability.

• Independent AI Consultancy: Offering strategic guidance and technical expertise to help businesses integrate AI solutions effectively. • Autonomous Squad Alignment: Assembling and leading small, self-managing units of top talent to deliver maximum value through synergistic skill curation. • Corporate AI Training: Conducting tailored upskilling sessions and 1:1 mentorship to empower teams with next-gen AI tools and workflows. • Architecting an AI-Native Ecosystem: Building a suite of next-gen applications merging React, Python, and multimodal AI models. • Pioneering Voice & Spatial Interfaces: Implementing advanced STT/TTS and exploring spatial computing for intuitive user experiences. • Hyper-Efficient Development: Leveraging AI agents to achieve 10x engineering velocity in a greenfield environment. • Strategic Product Vision: Driving end-to-end product development from architectural design to deployment.

AI/ML Project for Food and Beverage Industry • Sole Front-end Developer collaborating with AI/ML engineers and Data Scientists. • Developing a greenfield project, showcasing skills in a satisfying and efficient manner. • Delivered visually engaging application features using a cutting-edge tech stack. • Enhanced application performance and user experience through strategic UI optimizations and responsive design adjustments Internal HRMS system • Developed front-end for a comprehensive Human Resource Management System (HRMS). • Integrated employee profiles for seamless data access. • Enhanced project planning with resource and proposal modules. • Created a CV generation tool for streamlined resume creation. • Timesheet management for tracking employee hours. • Implemented role-based access controls for diverse user roles. Large-Scale Solution Delivery for FMCG Industry: • Collaborated with a large, international team of top-tier specialists, operating under Scrum and Agile methodologies to enhance project delivery • Worked alongside solution architects, tech leads, delivery leaders, full-stack developers, business analysts, and project managers. • Developed features for ecosystem apps - CLI - Compliance Tool (Node.js) - Resource Management App (Next.js) • Delivered a large-scale solution addressing complex layers. • Ensured compliance and accessibility standards were met. • Maintained CI/CD processes for projects, ensuring smooth deployments and continuous integration

Responsible for designing, developing, and deploying modern, responsive web applications with a mobile-first approach. Key responsibilities and technologies include: • Front-end Development: Expertise in HTML5, CSS3 (SCSS, CSS Grid, CSS Animations), JavaScript (ES6+), TypeScript, React, Next.js (including SSG and SSR), Storybook, Styled Components, Styled System, and GSAP. Developed responsive and high-performance user interfaces with a focus on accessibility and cross-browser compatibility. • CMS Integration: Implemented seamless integrations with headless CMS platforms such as Storyblok and WordPress, leveraging APIs (REST, GraphQL) to create dynamic, content-driven applications. • Testing and Quality Assurance: Ensured application stability and performance using Jest and React Testing Library, adhering to Test-Driven Development (TDD) practices. • Design Systems and Methodologies: Applied best practices such as BEM and Atomic Design to build scalable, maintainable component libraries. Collaborated closely with designers using tools like Figma, Sketch, Adobe XD, Photoshop, and Illustrator to translate designs into interactive user interfaces. • Version Control and Deployment: Managed code repositories using Git (GitHub, GitLab) and deployed applications via platforms like Vercel and Netlify to ensure efficient CI/CD workflows. • Other Tools and Skills: Proficient in creating responsive email templates using MJML and coordinating in agile team environments with tools like Slack and TeamWork on macOS.

• Coordinating and delivering high-quality projects for one of the leading Polish companies in the economic information and financial sector • Ensuring that the project is delivered on time and within budget • Project planning, estimation, scope, and schedule • Creating and managing project documentation • Building and maintaining a relationship with the client • Technical support for clients • Financial settlements with clients

• Communicating with development and design teams to ensure quality throughout the software development lifecycle • Manual and functional testing of websites and web applications • Checking project functionalities according to documentation • Reporting and documenting technical issues • Suggesting improvements • Execution of test cases