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I am a highly skilled Full Stack Developer with over nine years of experience designing, developing, and optimizing scalable web applications. My expertise spans frontend technologies such as ReactJS, Angular, Vue.js, NextJS, as well as AWS cloud services. I have a strong background in building RESTful APIs, managing databases, and maintaining legacy systems. I pride myself on delivering clean, maintainable code, improving system performance, and mentoring junior developers. I am dedicated to driving innovation and building secure, high-performance applications. Throughout my career, I have successfully led multi-team projects, optimized infrastructure costs, and implemented DevOps practices to enhance deployment efficiency and system scalability. I thrive in dynamic environments and enjoy continuous learning and collaboration to deliver impactful technology solutions.…I am a highly skilled Full Stack Developer with over nine years of experience designing, developing, and optimizing scalable web applications. My expertise spans frontend technologies such as ReactJS, Angular, Vue.js, NextJS, as well as AWS cloud services. I have a strong background in building RESTful APIs, managing databases, and maintaining legacy systems. I pride myself on delivering clean, maintainable code, improving system performance, and mentoring junior developers. I am dedicated to driving innovation and building secure, high-performance applications. Throughout my career, I have successfully led multi-team projects, optimized infrastructure costs, and implemented DevOps practices to enhance deployment efficiency and system scalability. I thrive in dynamic environments and enjoy continuous learning and collaboration to deliver impactful technology solutions.

Andrii Song

Full Stack Developer, Developer, Programmer, +2

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I am a highly skilled Full Stack Developer with over nine years of experience designing, developing, and optimizing scalable web applications. My expertise spans frontend technologies such as ReactJS, Angular, Vue.js, NextJS, as well as AWS cloud services. I have a strong background in building RESTful APIs, managing databases, and maintaining legacy systems. I pride myself on delivering clean, maintainable code, improving system performance, and mentoring junior developers. I am dedicated to driving innovation and building secure, high-performance applications. Throughout my career, I have successfully led multi-team projects, optimized infrastructure costs, and implemented DevOps practices to enhance deployment efficiency and system scalability. I thrive in dynamic environments and enjoy continuous learning and collaboration to deliver impactful technology solutions.…I am a highly skilled Full Stack Developer with over nine years of experience designing, developing, and optimizing scalable web applications. My expertise spans frontend technologies such as ReactJS, Angular, Vue.js, NextJS, as well as AWS cloud services. I have a strong background in building RESTful APIs, managing databases, and maintaining legacy systems. I pride myself on delivering clean, maintainable code, improving system performance, and mentoring junior developers. I am dedicated to driving innovation and building secure, high-performance applications. Throughout my career, I have successfully led multi-team projects, optimized infrastructure costs, and implemented DevOps practices to enhance deployment efficiency and system scalability. I thrive in dynamic environments and enjoy continuous learning and collaboration to deliver impactful technology solutions.

Available to hire

I am a highly skilled Full Stack Developer with over nine years of experience designing, developing, and optimizing scalable web applications. My expertise spans frontend technologies such as ReactJS, Angular, Vue.js, NextJS, as well as AWS cloud services. I have a strong background in building RESTful APIs, managing databases, and maintaining legacy systems. I pride myself on delivering clean, maintainable code, improving system performance, and mentoring junior developers.

I am dedicated to driving innovation and building secure, high-performance applications. Throughout my career, I have successfully led multi-team projects, optimized infrastructure costs, and implemented DevOps practices to enhance deployment efficiency and system scalability. I thrive in dynamic environments and enjoy continuous learning and collaboration to deliver impactful technology solutions.

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Work Experience

Senior FullStack Developer at Concentrix |UK

March 1, 2025 - Present

Led migration of a legacy PHP e-commerce platform to a modern ReactJS and NextJS stack, improving page load times by 35% and customer retention by 20%. Developed scalable APIs handling over 1 million daily requests with minimal latency through MongoDB optimizations, caching, and load balancing. Designed and deployed serverless applications with AWS Lambda and DynamoDB, reducing infrastructure costs by 30%. Headed a multi-team project for a centralized patch management system, delivering it ahead of schedule and reducing client vulnerability resolution time by 30%. Optimized database queries and indexes to improve response times by 50% during peak loads. Automated CI/CD pipelines with Jenkins and GitLab, cutting deployment times by 60%. Mentored junior developers through code reviews and workshops, enhancing team productivity and code quality by 25%.

Senior Software Engineer at iLoy Loyalty Platform

December 31, 2024 - September 3, 2025

Built a scalable loyalty engine using Node.js and MySQL supporting multi-tenant architecture. Created a real-time analytics dashboard with Kafka and ElasticSearch. Improved API response times by 40% via query optimization and load balancing. Collaborated closely with front-end teams to ensure seamless integration and data flow.

Software Engineer at Form3 Financial Cloud

March 1, 2024 - September 3, 2025

Designed and developed cloud-native payment APIs using ReactJS, Angular, and Kubernetes to enable secure, real-time payment processing with 99.99% uptime. Led migration of payment services to containerized microservices using Docker and Kubernetes, improving scalability by 70%. Partnered with DevOps to implement CI/CD pipelines with CircleCI, reducing deployment times by 60%. Developed optimized real-time payment gateways integrated with UK Faster Payments, SEPA, and SWIFT, reducing transaction latency by 40%. Designed highly available systems with AWS (EC2, S3, DynamoDB, Lambda) ensuring regulatory compliance. Implemented observability tools (Prometheus, Grafana, ELK) reducing incident response times by 50%. Delivered a fault-tolerant distributed ledger system improving operational efficiency by 30%. Mentored junior engineers on cloud-native microservices design and deployment.

FrontEnd Developer at Cortino Solutions

December 31, 2019 - September 3, 2025

Developed backend services using Angular, VueJS, and ReactJS for high-traffic applications with over 1 million daily active users. Created secure payment processing systems compliant with PCI DSS and GDPR. Designed event-driven architectures with RabbitMQ and Redis enabling real-time updates and improving system efficiency by 35%.