Alexander S.

Senior Software Engineer (primarily Node.js) with 8 years of experience building robust product solutions, passionate about turning complex business requirements into reliable, high-performance software. Strong expertise in Node.js, Angular, React.js, and Next.js, with a focus on modern practices including AI integration, Spec-Driven Development, and Agentic loops/harnesses. Have great experience in optimization web applications in such methods as brotli/gzip static compression, lazy-loading, cache, and compressing response from the API in gzip which can improve the speed of your application up to 3 times or more. Have a good experience with databases such as MySQL/PostgreSQL/MongoDB/DynamoDB/DocumentDB/ElasticSearch (relations, queries, triggers, views, all kinds of JOINs in RDBS, TypeORM, Sequelize, Native SQL, Knex, Mongoose). A lot of cases needed to be implemented using AMQP (Advanced Message Queuing Protocol). I always use RabbitMQ and NATS or any other queue in my work and am very familiar with these technologies. One of the cases - is the implementation of product importer for an international e-commerce company from advertising to ElasticSearch using AMQP. I have a good understanding of microservice architecture (Docker, Kubernetes, AMQP, Ingress, Skaffold, or identical AWS technologies), which also uses AMQP as the main way to communicate between services. I am also good at Test-Driven-Development, and Behaviour-Driven-Development methodologies and I really prefer high-quality software. Also familiar with AWS EC2, Security Groups, ElasticBeanstalk, Route53, Elastic Kubernetes Service, Ingress, Lambda, CloudFront, S3, RDS, and CloudWatch. Took part in the development process of Commerce, Gaming, EdTech, AdTech, Trading applications.