Roman Jasinski Senior Full Stack Developer | Typescript | React | Node.js

Senior Software Engineer

Self Employed

Feb 2025 - Current (1 year 9 months)

F

Technical Lead

Fortunes Tech

May 2021 - Current (5 years 6 months)

Led and participated in the development of various web and mobile apps using cutting-edge technologies, including React, React Native, Next.js, Node.js, Nest, Python, and Golang. Implemented high-performance REST APIs endpoints for OwlerAI using Node.js, Nest, PostgreSQL, Supabase and Prisma. Developed pixel-perfect web and mobile frontend of Bookvid and OwlerAI which processes visual data and model using TypeScript, Next, React Query, Recoil, Shadcn, Styled Component and Tailwind CSS. Utilized RabbitMQ in AELER project to manage and streamline real-time messaging and communication between microservices, enhancing the efficiency and reliability of data processing and transportation logistics. Developed and maintained robust cross-platform m

G

Senior Software Engineer

GOBET

Oct 2018 - Apr 2021 (2 years 7 months)

Built a web application from scratch for streamers and viewers to manage challenges and donations, integrating with Streamlabs and OBS using JavaScript, Angular, Angular Material, NgRx, SCSS, HTML, Node.js, and DigitalOcean. Led the migration of an Angular project to Next and deployed it on Vercel, enhancing SEO with built-in optimization features, implemented SSR and SSG for faster load times and better performance, improving user experience and content delivery. Transitioned UI components from Angular Material to TailwindCSS, Radix UI and Styled Components, achieving a 40% reduction in component loading speed and providing a modern and consistent look and feel. Enhanced the Nest.js backend service architecture by updating RESTful APIs to

Software Engineer

Unilink SA

Oct 2017 - Sep 2018 (1 year)

Led the design and implementation of homeowners, property and life insurance underwriting software, which streamlined risk assessment processes and reduced underwriting time by 30%, enhancing client satisfaction and throughput. Spearheaded the implementation of API integration with multiple insurance carriers, enhancing quick quoting features that reduced quote generation time by 30% for agents. Collaborated with data engineering teams to develop an AI-driven tool using satellite imagery analysis, improving wildfire risk assessments by 40% and supporting underwriting decisions and implementing a powerful search feature using Elasticsearch for real-time. Led the development and integration of online signature capabilities using Dropbox Sign,

D

Software Engineer

DEVHIGHT

Oct 2016 - Sep 2017 (1 year)

Participated in development and maintain of ecommerce websites using PHP, Laravel, Java, Spring Boot, Node.js, MySQL, jQuery and React Developed 200+ unit tests to verify the functionality of user interfaces, back-end processing, connectivity, and relational database interactions using MySQL Achieved higher UX level by adding relevant animations and improving handle of user interactions Created Android version of existing iOS app

S

Full Stack Developer

Synevo Poland

Apr 2016 - Oct 2016 (7 months)

Developed and maintained a health web application, migrating the existing web application from the LAMP stack app to MERN stack app. Translated redesigned Figma designs to pixel-perfect and fully responsive web application using JavaScript, React, SASS and LESS. Rebuilt backend services in Node.js using Express.js, creating RESTful APIs to handle various insurance operations such as policy management, claims processing, and user management. Migrated data from MySQL to MongoDB, optimizing data models and queries to take full advantage of MongoDB’s performance capabilities. Implemented secure authentication flow using JWT (JSON Web Tokens) to ensure safe and efficient user authentication and authorization. Integrated third-party services and

Software Developer

Codibly

Sep 2015 - Mar 2016 (7 months)

Transformed design mock-ups into HTML5/CSS3 layouts and created Responsive Web libraries by utilizing the main styling tools and stuff and enhancing UI/UX Design in agile development team. Participated in development of Ecommerce and CRM systems with CMS systems including Drupal, WordPress, Joomla and OOP, MVC structure, Laravel, SQL,Git and followed Pixel Perfect design and implementation. Involved in writing application level code to interact with APIs, Web Services using AJAX, JSON and XML. Used jQuery for basic animation and end user screen customization purposes. Collaborated closely with senior developers to troubleshoot bugs, perform code review and debugging, and implement performance enhancements, contributing to the app's reliabil

Roman Jasinski

About

Detail

Timeline

Résumé

Roman Jasinski

About

Detail

Behavioral traits