Available to hire
Hi there! I’m Andrej Dukanic, a Senior Full Stack Engineer with over 8 years of hands-on experience designing, developing, and scaling high-performance web applications. I’m proficient in modern frameworks including React, Vue.js, Node.js, Python, and Laravel, and I’ve delivered secure, robust solutions across enterprise SaaS platforms. I excel at building responsive user interfaces, architecting scalable back-end systems, and driving performance improvements across complex products. I thrive in cross-functional, agile teams and am committed to writing clean, well-tested code while continuously learning new technologies to solve engineering challenges and deliver business value.
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
Language
English
Fluent
Serbian
Fluent
Work Experience
Senior Full Stack Engineer at Gambling.com Group
June 1, 2025 - July 21, 2025Developed and optimized core backend features using Laravel, improving system reliability and performance to support 10,000+ active users on the gambling platform. Built chatbot functionalities with FastAPI, Pinecone, OpenAI, LangChain, and MCP for real-time personalized interactions enhancing user engagement. Wrote and maintained over 200+ test cases for Laravel, increasing code coverage by 40% and reducing production issues by 30%. Enhanced user experience by implementing new UI features with Vue.js and React across 10+ active production sites, improving navigation and reducing load times by 20%.
Full-Stack Software Engineer at Levi9 Technology Services
April 1, 2024 - July 21, 2025Played a key role in developing a Cloud Native Banking solution, improving system performance to handle 1,000+ concurrent users. Developed and optimized the ANWB E-learning platform, increasing user registration and course completion rates by 35%. Built and enhanced the ANWB Aro application, optimizing backend with PostgreSQL and GraphQL for a 20% improvement in speed and reliability. Utilized AWS (EC2, RDS), Docker, and Kubernetes to deploy and scale applications ensuring 90% uptime. Integrated Pinecone and OpenAI for internal chatbots and used WebSocket for real-time updates and data synchronization.
Full Stack Engineer at Vega IT
August 1, 2022 - July 21, 2025Contributed to development of a scalable, event-driven microservice platform using React and Django, improving scalability by 30%. Developed a web-based employee time tracking system with Vue.js and Flask resulting in a 40% increase in employee efficiency. Wrote over 500+ test cases with Jest and Cypress ensuring 90% functionality coverage and reducing production errors by 25%. Collaborated with cross-functional teams to implement robust n-tier software architecture. Managed and optimized AWS cloud infrastructure with Docker and Kubernetes, improving deployment speed by 30%.
Full Stack Engineer at Braineering IT Solutions
May 1, 2020 - July 21, 2025Worked on 3 full-stack web applications in the e-commerce sector using React.js, Vue.js, Node.js, Laravel, and TypeScript, improving platform scalability and user experience. Implemented responsive, mobile-first designs with Bootstrap 4 and SCSS, increasing mobile user engagement by 15%. Modeled MySQL databases handling 10,000+ records for authentication, product catalogs, and order management with optimized queries. Built and maintained a web scraper using Node.js deployed on AWS ECS to collect and process large datasets with improved accuracy.
Senior Full Stack Engineer at Gambling.com Group
June 30, 2025 - July 21, 2025Developed and optimized core backend features using Laravel, improving system reliability and performance to support 10,000+ active users on the gambling platform. Built chatbot functionalities with FastAPI, Pinecone, OpenAI, LangChain, and MCP, enhancing real-time personalized user interactions. Maintained over 200+ test cases for Laravel increasing code coverage and reducing production issues. Implemented new UI features with Vue.js and React across multiple production sites, improving navigation and reducing load times by 20%.
Full-Stack Software Engineer at Levi9 Technology Services
April 30, 2024 - July 21, 2025Key contributor to Cloud Native Banking solution development, enhancing system performance and transaction speeds for 1,000+ concurrent users. Developed and optimized ANWB E-learning platform with integrated purchasing and course functions, increasing user registration and completion by 35%. Enhanced the ANWB Aro application backend with PostgreSQL and GraphQL, improving speeds and reliability by 20%. Utilized AWS, Docker, and Kubernetes to deploy and scale applications ensuring 90% uptime. Integrated Pinecone, OpenAI chatbot, and implemented WebSocket for real-time data synchronization.
Full Stack Engineer at Vega IT
August 31, 2022 - July 21, 2025Contributed to scalable event-driven microservice platform development with React and Django, boosting scalability by 30%. Developed a web-based employee time tracking system using Vue.js and Flask, increasing employee efficiency by 40%. Authored 500+ tests with Jest and Cypress, achieving 90% functionality coverage and lowering production errors by 25%. Collaborated with cross-functional teams on n-tier software architecture. Managed cloud infrastructure on AWS and automated containerization using Docker and Kubernetes, enhancing deployment speed by 30%.
Full Stack Engineer at Braineering IT Solutions
May 31, 2020 - July 21, 2025Developed multiple full-stack e-commerce web applications with React.js, Vue.js, Node.js, Laravel, and TypeScript, improving platform scalability and user experience. Implemented responsive mobile-first designs with Bootstrap 4 and SCSS, increasing mobile engagement by 15%. Modeled MySQL databases handling 10,000+ records supporting authentication, catalogs, and orders, optimizing query performance. Built and maintained a Node.js web scraper deployed on AWS ECS, enhancing data accuracy in large dataset processing.
Senior Full Stack Engineer at Gambling.com Group
June 30, 2025 - July 23, 2025Developed and optimized core backend features using Laravel to improve system reliability and performance, supporting over 10,000 active users. Built chatbot functionalities with FastAPI, Pinecone, OpenAI, LangChain, and MCP for real-time personalized user interactions. Authored and maintained over 200 test cases for Laravel, increasing code coverage by 40% and reducing production issues by 30%. Enhanced user experience by implementing new UI features with Vue.js and React across multiple production sites, improving navigation and reducing load times by 20%.
Full-Stack Software Engineer at Levi9 Technology Services
April 30, 2024 - July 23, 2025Contributed significantly to the development of a Cloud Native Banking solution enhancing system performance and transaction processing speeds, allowing handling of 1,000+ concurrent users. Developed and optimized the ANWB E-learning platform with streamlined purchasing and course functionalities, boosting user registrations and course completions by 35%. Built and improved the ANWB Aro web-based platform, optimizing backend services with PostgreSQL and GraphQL to increase speed and reliability by 20%. Utilized AWS (EC2, RDS), Docker, and Kubernetes for application deployment and scaling, achieving 90% uptime. Integrated Pinecone and OpenAI for internal chatbots and employed WebSocket for real-time updates and data synchronization.
Full Stack Engineer at Vega IT
August 31, 2022 - July 23, 2025Contributed to the development of a scalable, event-driven microservice platform using React and Django, improving system scalability by 30%. Developed a web-based employee time tracking system with Vue.js and Flask, enhancing employee time management efficiency by 40%. Authored over 500 test cases using Jest and Cypress, ensuring 90% functionality coverage and reducing production errors by 25%. Collaborated with multiple cross-functional teams to define and implement robust software architecture. Managed and optimized cloud infrastructure using AWS (EC2, S3, RDS) and automated containerization with Docker and Kubernetes, improving deployment speed by 30%.
Full Stack Engineer at Braineering IT Solutions
May 31, 2020 - July 23, 2025Developed three full-stack web applications for the e-commerce industry using React.js, Vue.js, Node.js, Laravel, and TypeScript, enhancing platform scalability and user experience. Implemented responsive, mobile-first designs with Bootstrap 4 and SCSS, increasing mobile user engagement by 15% and improving cross-device accessibility. Designed MySQL databases to support user authentication, product catalogs, and order management, managing over 10,000 records and optimizing queries. Built and maintained a web scraper using Node.js deployed on AWS ECS, improving data collection accuracy.
Senior Full Stack Engineer at Gambling.com Group
July 1, 2025 - August 8, 2025Developed and optimized core backend features to improve system reliability and performance supporting over 5,000 active users on the gambling platform. Built chatbot functionalities using Pinecone, OpenAI, LangChain, and MCP, providing real-time, personalized user interactions that enhanced engagement across the platform. Wrote and maintained over 200+ test cases for Django, increasing code coverage by 40% and reducing production issues by 30%. Improved user experience by implementing new UI features with Vue.js and React across more than 10 active production sites, enhancing navigation and reducing load times by 20%.
Full Stack Software Engineer at Levi9 Technology Services
April 1, 2024 - August 8, 2025Played a key role in developing a Cloud Native Banking solution, improving system performance and transaction processing speeds that allowed the platform to handle over 1,000 concurrent users. Developed and optimized the ANWBE learning platform, integrating seamless online purchasing and course functionality, resulting in a 35% increase in user registration and course completion rates. Built and enhanced the ANWBAro web-based platform for the Dutch Automobile Association, optimizing backend services with PostgreSQL and GraphQL, which led to a 20% improvement in application speed and reliability. Utilized AWS (EC2, RDS), Docker, and Kubernetes to deploy and scale applications, ensuring 90% uptime. Integrated Pinecone and OpenAI for internal chatbot and utilized WebSocket for real-time updates and seamless data synchronization.
Full Stack Engineer at Vega IT
August 1, 2022 - August 8, 2025Contributed to the development of a scalable, event-driven microservice platform with React and Django, resulting in a 30% system scalability improvement. Developed a web-based employee time tracking system using Vue.js and Flask, resulting in a 40% increase in employee time management efficiency. Wrote over 500+ test cases with Jest and Cypress, ensuring 90% functionality coverage and significantly reducing production errors by 25%. Collaborated with 2 cross-functional teams to define and implement a robust software architecture using n-tier patterns. Managed and optimized cloud infrastructure using AWS (EC2, S3, RDS) and automated containerization with Docker and Kubernetes, improving deployment speed by 30%.
Full Stack Engineer at Braineering IT Solutions
May 1, 2020 - August 8, 2025Worked on 3 full-stack web applications for the e-commerce industry using React.js, Vue.js, Node.js, and TypeScript, enhancing platform scalability and user experience. Implemented responsive, mobile-first designs using Bootstrap 4 and SCSS, boosting mobile user engagement by 15% and improving cross-device accessibility. Modeled MySQL databases to support user authentication, product catalogs, and order management, efficiently managing over 10,000 records and optimizing queries for faster data retrieval. Built and maintained a web scraper using Node.js, deployed on AWS ECS, collecting and processing large data sets with improved data accuracy.
Senior Full Stack Engineer at Gambling.com Group
August 1, 2025 - September 9, 2025Developed Django core backend features, improved system reliability and performance to support 1k+ active users on the gambling platform. Built chatbot functionality with Pinecone, OpenAI, LangChain, and MCP, providing real-time, personalized user interactions. Implemented Sentry for error tracking, enabling real-time monitoring and faster issue resolution. Enhanced user experience by implementing new UI features with React across 10+ pages, improving navigation and reducing load times.
Full Stack Software Engineer at Levi9 Technology Services
April 1, 2024 - September 9, 2025Built multiple web apps using a combination of different technologies and frameworks. Developed an IoT SaaS platform with MERN stack for a greenfield startup, focusing on sensor data analysis and real-time visualization. Implemented scalable email and document processing pipelines with complex business logic, along with frontend pages, for a Legal Document Automation platform using Django and React. Built an enterprise mesh VPN platform with Laravel, Vue.js, and WireGuard, enabling secure peer-to-peer connections while reducing infrastructure costs. Implemented test-driven development (TDD) practices to ensure high code quality, improve reliability, and prevent production-level defects. Utilized AWS (EC2, RDS), Docker and Kubernetes to deploy and scale applications. Worked closely with cross-functional teams to design, develop, and deploy critical features, fostering a highly collaborative environment that contributed to the successful delivery of projects.
Full Stack Engineer at Vega IT Sourcing IT Solutions
May 1, 2020 - September 9, 2025Contributed to the development of a scalable, event-driven microservice platform using MERN stack for an insurance company. Developed a web-based employee time tracking system using Vue.js and Flask, streamlining workflows and improving employee time management efficiency. Collaborated with cross-functional teams to define and implement robust software architecture using n-tier patterns. Managed and optimized cloud infrastructure using AWS (EC2, S3, RDS) and automated containerization with Docker and Kubernetes, improving deployment speed.
Full Stack Engineer at Brain Engineering IT Solutions
May 1, 2021 - September 9, 2025Worked on 3 full-stack web applications for the e-commerce industry using React.js, Vue.js, Node.js, and Laravel, enhancing both platforms' scalability and user experience. Implemented responsive, mobile-first design using Bootstrap 4 and SCSS, boosting mobile user engagement and improving cross-device accessibility. Modeled MySQL databases to support user authentication, product catalogs, and order management, optimizing queries for faster data retrieval. Built and maintained a web scraper using Node.js, deployed on AWS ECS, collecting and processing large data sets with improved data accuracy.
Senior Full Stack Engineer at Gambling.com Group
August 1, 2025 - September 9, 2025Senior Full Stack Engineer responsible for developing and optimizing backend features (Django) and frontend interfaces (React). Implemented chat bot interactions using Pinecone, OpenAI, LangChain and MCP; added real-time monitoring via Sentry; improved UI across 10+ pages; led testing practices (TDD) and deployment on AWS, Docker and Kubernetes.
Full Stack Software Engineer at Levi9 Technology Services
April 1, 2024 - September 9, 2025Developed multiple web applications using MERN stack for the insurance industry; built an IoT SaaS platform with MERN for a greenfield startup focusing on sensor data analytics and real-time visualization; implemented scalable email and document processing pipelines with complex business logic and frontend pages for a Legal Document Automation platform using Django and React; built an enterprise mesh VPN platform with Laravel, Vue.js and WireGuard to enable secure peer-to-peer connections while reducing infrastructure costs.
Full Stack Engineer at Vega IT
August 1, 2022 - September 9, 2025Developed an IoT SaaS platform using MERN stack for a greenfield startup; implemented scalable email and document processing pipelines with complex business logic and frontend pages for a Legal Document Automation platform using Django and React; deployed on AWS ECS and Docker; collaborated with cross-functional teams to deliver features on time.
Full Stack Engineer at Brain Engineering IT Solutions
May 1, 2020 - September 9, 2025Built three full-stack web apps for e-commerce using React.js, Vue.js, Node.js and Laravel; implemented responsive mobile-first designs with Bootstrap 4 and SCSS; modeled MySQL databases for authentication, product catalogs, and orders with optimized queries; built a Node.js-based web scraper deployed on AWS ECS for large-scale data collection and processing.
Senior Full Stack Engineer at Gambling.com Group
August 1, 2025 - September 16, 2025Developed Django-based backend features, improved system reliability and performance to support 1k+ active users on the gambling platform. Built chat bot functionalities with Pinecone, OpenAI, LangChain, and MCP, providing real-time, personalized interactions. Implemented Sentry for error tracking and monitoring. Enhanced UI with new React features across 10+ pages, improving navigation and reducing load times.
Full Stack Engineer at Vega IT
August 1, 2022 - September 16, 2025Built a scalable, event-driven microservices platform using the MERN stack for a greenfield startup, focusing on sensor data analysis and real-time visualization. Implemented an IoT SaaS platform with MERN stack and data analytics. Created scalable email and document processing pipelines with complex business logic, and built frontend pages for a Legal Document Automation platform using Django and React. Built an enterprise mesh VPN platform with Laravel, Vue.js, and WireGuard, enabling secure peer-to-peer connections while reducing infrastructure costs. Implemented TDD practices and utilized AWS, Docker, and Kubernetes to deploy and scale services. Collaborated closely with cross-functional teams to deliver robust features.
Full Stack Engineer at Levi9 Technology Services
April 1, 2024 - September 16, 2025Contributed to the development of a scalable, event-driven microservices platform for an insurance industry client. Built a web-based employee time tracking system using Vue.js and Flask, with front-end pages and workflows. Implemented architecture using N-tier patterns, and managed and optimized cloud infrastructure with AWS (EC2, S3, RDS), Docker and Kubernetes, reducing deployment costs and improving reliability. Implemented test-driven development to ensure high code quality.
Full Stack Engineer at Brain Engineering IT Solutions
May 1, 2020 - September 16, 2025Worked on 3 full-stack web applications for the e-commerce industry using React.js, Vue.js, Node.js, and Laravel, improving scalability and user experience. Implemented responsive mobile-first designs using Bootstrap 4 and SCSS, boosting mobile user engagement and cross-device accessibility. Modeled MySQL databases to support user authentication, product catalogs, and order management, optimizing queries for faster data retrieval. Built and maintained a web scraper using Node.js, deployed on AWS EC2, collecting and processing large data sets with improved data accuracy.
Senior Full Stack Engineer at Gambling.com Group
August 1, 2025 - September 18, 2025Developed Django-based backend features, improved system reliability and performance to support 1k+ active users on the gambling platform. Built chatbot functionalities with Pinecone, OpenAI, LangChain, and MCP for real-time, personalized user interactions. Implemented Sentry for error tracking and real-time monitoring. Enhanced user experience by delivering new UI features with React across 10+ pages, improving navigation and load times.
Full-Stack Software Engineer at Levi9 Technology Services
April 1, 2024 - September 18, 2025Built multiple web apps using MERN stack for an insurance industry company. Developed an IoT SaaS platform with MERN stack for a greenfield startup, focusing on sensor data analysis and real-time visualization. Implemented scalable email and document processing pipelines with complex business logic, along with frontend pages, for a Legal Document Automation platform using Django and React. Built an enterprise mesh VPN platform with Laravel, Vue.js, and WireGuard, enabling secure peer-to-peer connections while reducing infrastructure costs. Implemented test-driven development (TDD) practices to ensure high code quality, improve reliability, and prevent production-level defects. Used AWS (EC2, RDS), Docker and Kubernetes to deploy and scale applications. Worked closely with cross-functional teams to design, develop, and deploy critical features, fostering a highly collaborative environment that contributed to the successful delivery of projects.
Full Stack Engineer at Vega IT
August 1, 2022 - September 18, 2025Contributed to the development of a scalable, event-driven microservice platform using MERN stack for a company in the insurance industry. Developed a web-based employee time tracking system using Vue.js and Flask, streamlining workflow and improving employee time management efficiency. Collaborated with cross-functional teams to define and implement robust software architecture using n-tier patterns. Managed and optimized cloud infrastructure using AWS (EC2, S3, RDS) and automated containerization with Docker and Kubernetes, improving deployment speed.
Full Stack Engineer at Brain Engineering ITS Solutions
May 1, 2020 - September 18, 2025Worked on three full-stack web applications for the e-commerce sector using React.js, Vue.js, Node.js, and Laravel. Implemented responsive, mobile-first designs with Bootstrap 4 and SCSS, boosting mobile user engagement and cross-device accessibility. Modeled MySQL databases to support user authentication, product catalogs, and order management, optimizing queries for faster data retrieval. Built and maintained a web scraper using Node.js, deployed on AWS ECS, collecting and processing large data sets with improved data accuracy. Collaborated with cross-functional teams to define and implement robust software architecture using n-tier patterns. Managed and optimized cloud infrastructure using AWS (EC2, S3, RDS) and automated containerization with Docker and Kubernetes, improving deployment speed.
Education
Master's degree at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree at University of Belgrade
May 1, 2009 - June 1, 2013Master's degree at University of Belgrade
August 1, 2013 - March 31, 2017Bachelor's degree at University of Belgrade
May 1, 2009 - June 30, 2013Master's degree at University of Belgrade
August 1, 2013 - March 31, 2017Bachelor's degree at University of Belgrade
May 1, 2009 - June 30, 2013Master's degree, Computer Science at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree, Computer Science at University of Belgrade
May 1, 2009 - June 1, 2013Master's degree at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree at University of Belgrade
May 1, 2009 - June 1, 2013Master's degree at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree at University of Belgrade
May 1, 2009 - June 1, 2013Master's degree in Computer Science at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree in Computer Science at University of Belgrade
May 1, 2009 - June 1, 2013Master's degree in Computer Science at University of Belgrade
August 1, 2013 - March 1, 2017Bachelor's degree in Computer Science at University of Belgrade
May 1, 2009 - June 1, 2013Qualifications
Industry Experience
Software & Internet, Gaming, Financial Services, Education, Retail, Professional Services, Media & Entertainment
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
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