Martin Josipovic

Martin Josipovic-| Warsaw, Mazowieckie Summary Experienced full-stack developer with over 10+ years of experience in Javascript, NodeJS, ReactJS, VueJS, AngularJS, and Linux environments. Skilled in developing APIs and high-demand services. Proficient in PHP, Laravel, CodeIgniter. Familiar with Python and Django development. Strong team player and proactive learner. Experience BellaSquared Holdings | Kingston, Ontario Senior Software Developer | 09/2023 - Present NDA Self Employed Software Developer | 12/2021 - 09/2023 Architected and deployed an AI Conversational Sales Bot in Python on Microsoft Azure, increasing sales conversions by 20%. Developed and implemented Python Testing Code for Staging and Quality Assurance, reducing software bugs by 15%. Created and optimized lightweight and scalable web applications using Flask and FastAPI, improving application performance by 25%. Integrated and enhanced the production of human-like language using LLM, improving customer engagement by 30%. Managed and streamlined version control of code on Git Commit, ensuring efficient collaboration and development process. Conducted and innovated extensive research and prototyping of deep learning AI Units in Python, improving data processing efficiency by 25%. Collaborated and communicated with the business to understand available resources and constraints around data, processed platforms, and security, ensuring compliance and enhancing data security. ANSYS ICA Gmbh | Warsaw, Mazowieckie, Poland Software Developer | 01/2020 - 12/2021 Led and employed the whole SDLC, using a comprehensive tech stack, including React, NPM, Node.js, Express, and the Serverless framework, improving system efficiency by 30%. Integrated and utilized third-party libraries seamlessly into the system, including payment gateways such as PayPal,Stripe, and Authorize. Achieved and implemented a flawless user interface by using a 100% pixel-perfect design, utilizing Figma and React for front-end development, increasing user engagement by 20%. Integrated and leveraged OKTA for secure authentication, ensuring robust user authentication and authorization, and Twilio for seamless customer support features, reducing customer complaints by 15%. Spearheaded and guided the development team, collaborating with team members to ensure the successful implementation of features and functionalities, improving team productivity by 25%. Incorporated and automated tax calculations within the system using tax APIs like Taxa, ensuring compliance with taxation regulations and reducing administrative costs by 20%. Implemented and optimized inventory management systems to track and manage stock, enhancing overall efficiency for users, leading to a 30% increase in operational efficiency. ANSYS ICA Gmbh | Warsaw, Mazowieckie, Poland Software Developer | 10/2018 - 01/2020 Worked and participated as a full stack developer in AI-based financial product with React, Python, Node, AWS, building the SaaS product and NFT minting process, and a live sport event system with sportrader, hook service, AWS lambda function. Integrated and improved system functionality and user experience using various APIs, such as PayPal, stripe, Speech to text, text to speech. Implemented and enhanced system security and user experience using OKTA and JWT based authentication, optimized the react hook with react-query. Nortal | Warsaw, Mazowieckie, Poland Full Stack Developer | 09/2015 - 10/2018 Multitude of web projects utilizing React and Node.JS, designing, tested and built front end with React, Redux, Next.js, Express, Bootstrap/Atlaskit, Styled Components, participating in the development of Bootstrap styled React.js frontend with EC2 hosted Express/Nodejs backend. Built numerous database queries to retrieve and update data from MySQL and Mongo databases, improving data retrieval and update efficiency. Participated in CI/CD of React/Node.js application in AWS environment, improving system efficiency and reliability. Implemented a number of reporting and analytics screens using Highcharts library, leading to a 30% increase in datadriven decision making. Implemented authentication system that involved implementing social logins as well as two-factor authentication using Passport.JS, enhancing system security. Implemented features within payment processing system using Stripe API, improving user experience and reducing customer complaints. Implemented business intelligence dashboard for marketing team providing real time insights about customers and revenue, leading to a 20% increase in marketing efficiency. EG A/S | Warsaw, Mazowieckie Junior Developer Intern | 01/2013 - 09/2015 Object-Oriented Programming (OOP) Skills Amazon Web Services, Object Oriented Programming, ReactJS, Node.js, Express.js, PostgreSQL, MySQL, MongoDB, Redis, Docker, Front-End Development, Python Education Warsaw University of Technology | Warsaw, Mazowieckie, Poland Computer Science | 05/2013