Senior Backend Engineer (Node.js & Typescript) - Remote Anywhere in Bucuresti

We deliver a high quality service, working closely with businesses and candidates alike, acting as a real "HR Business Partner", offering HR Advisory and matching the "right" candidate with the "right" job.  Recruiter4You is a brand operated by Consultant4You LTD - A company based in Gibraltar Our client is an innovative and fast-growing platform operating in the casino, sports betting, and cryptocurrency space. They're dedicated to delivering an exceptional user experience and are currently looking for a skilled Senior Software Engineer (Backend Developer) to help push the boundaries of web technology as they scale. Role Description This is a full-time remote role for a Senior Software Engineer (Backend Developer) . The successful candidate will be responsible for day-to-day tasks related to backend web development, implementing new features, and maintaining the existing stack. You must be comfortable working in a team environment and demonstrating leadership among your peers. Responsibilities • Implement and maintain backend features using NestJS/Node.js and TypeScript • Analyze and improve application performance to ensure the backend is scalable and efficient • Ensure code quality meets established guidelines, including evaluations, testing, and security best practices • Collaborate with cross-functional teams to ensure seamless integration between frontend and backend components • Write and maintain tests using appropriate Node.js testing frameworks • Stay current with industry trends and bring innovative ideas to continuously evolve the tech stack Requirements • Minimum 6 years of experience using NestJS/Node.js and TypeScript • Expert-level knowledge of TypeORM and connection pool management • Experience with message queues or event-driven architecture (e.g., RabbitMQ, Kafka, AWS SQS) • Strong background in database architecture (primarily MySQL) and application scalability • Comfortable communicating in English at a basic internal level • Experience with high-concurrency applicationFamiliarity with testing tools such as Jest, k6, Cypress, or Selenium (unit, load, and/or end-to-end testing • Proficient in managing MySQL (v8+) in high-load environments, including transactions and access grants • Experience in the iGaming/casino industry is considered a strong asset.