Java/Node.js Developer

Важно! Работа предполагает только официальное трудоустройство по Трудовому кодексу РК. Форматы ГПХ или ИП не рассматриваются. Также просим вас указать зарплатные ожидания в сопроводительном письме. ‎ About Us Our parent company, 21Viral, is a technology company in the online gambling industry, specialising in designing and implementing game provider aggregator and full-scale iGaming platforms. To support our continued growth, we’ve recently opened a new office in Astana and are excited to build a talented local team to join our mission. ‎ Job Description What you'll be working on: • Building and maintaining microservices for integration platform • Implementing reactive, non-blocking APIs using Spring WebFlux and NestJS • Integrating with third-party service providers • Developing secure, high-performance transaction processing systems • Working with distributed systems and cloud infrastructure • Optimizing database queries and implementing efficient caching strategies • Participating in code reviews and architectural decisions. Technical skills and experience: • 4+ years of professional experience in Java (Spring Boot) and/or Node.js development • Strong experience with reactive and non-blocking programming using Spring WebFlux (Project Reactor) and/or asynchronous Node.js/NestJS • Hands-on experience with PostgreSQL (queries optimization, indexing, transactions) • Solid understanding and practical experience with microservice architecture • Experience in building and maintaining distributed systems • Experience with asynchronous communication and message brokers (AWS SQS, RabbitMQ, Kafka, or similar) • Experience with Redis for caching and session management. Personal qualities: • Proactive and self-driven, with the ability to work independently • Strong problem-solving and analytical thinking skills • Excellent communication skills and a collaborative mindset • Solid English skills. Good to have: • Experience with TypeScript in Node.js projects • Experience in implementing complex transaction processing and financial systems • Experience with Docker and AWS cloud services (ECS, RDS, ElastiCache, S3) • DevOps experience (CI/CD, Infrastructure as Code with Terraform/CloudFormation) • Experience with Terraform for infrastructure management • Experience with ReactJS or similar frontend frameworks • Knowledge of security best practices (authentication, encryption, secure APIs) • Experience with R2DBC (reactive database connectivity). ‎ Tech Stack Backend: • Java 21 with Spring Boot 3.5+ and Spring WebFlux (reactive programming) • Node.js with NestJS framework and TypeScript • PostgreSQL 15 with R2DBC (reactive database access) • Redis 6.x for caching and session management Infrastructure: • AWS (ECS Fargate, RDS, ElastiCache, ALB, S3, SQS, CloudWatch) • Docker for containerization • Terraform for Infrastructure as Code • NGINX for reverse proxy Architecture: • Microservices architecture (20+ services) • Reactive, non-blocking, event-driven patterns • RESTful APIs • Message-driven architecture with AWS SQS