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Senior Full Stack Developer

Roles & Responsibilities

  • A Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent experience.
  • Strong knowledge of frontend technologies including HTML, CSS, JavaScript, and Angular.
  • Deep experience with Next.js and React in high-frequency transaction environments.
  • At least 5 years of experience in full-stack development with a focus on Nest.js and Node.js.

Requirements:

  • Develop and maintain the frontend and backend of the Smart Alerts tool using React.js and Nest.js.
  • Implement and maintain containerisation solutions using Docker.
  • Apply Agile and Scrum methodologies to ensure efficient project management and timely delivery.
  • Design and implement robust and scalable database solutions using MySQL/MariaDB and NoSQL databases like MongoDB.

Job description


Who are we?


Welcome to Multiple (https://themultiple.com), your go-to iGaming service provider. We’re here to empower iGaming operators, allowing them to thrive in such a volatile industry. Our years of expertise, cutting-edge technology, and passion for delivering extraordinary player experiences make us the right choice for any company looking to elevate their success. We offer a range of iGaming offerings such as; Gaming Services, Casino Marketing, Sportsbook Marketing and Operations, Creative, Data and B.I, Operations (CS, RPF, KYC), VIP Management, Acquisition, Social Media, Content, Product, Legal and Compliance.


The Role


We are seeking a Senior Full Stack Developer with a strong background in developing and maintaining both frontend and backend services. The ideal candidate will have extensive experience with Nest.js and React.js/Nest.js, along with a proven track record of building scalable and efficient web applications. This role will focus on developing and enhancing Smart Alerts, our flagship alerting tool, and requires a deep understanding of full-stack development, database management, including both SQL and NoSQL databases, and modern software development practices.


Key Responsibilities


  • Develop and maintain the frontend and backend of the Smart Alerts tool using React.js and Nest.js.
  • Ensure seamless integration between frontend and backend components, optimising for performance, scalability, and user experience.
  • Conduct code reviews, optimise performance, and ensure adherence to the best security practices across the entire stack.
  • Mentor junior developers and contribute to the continuous improvement of the development process.
  • Implement and maintain containerisation solutions using Docker.
  • Apply Agile and Scrum methodologies to ensure efficient project management and timely delivery.
  • Troubleshoot and resolve complex technical issues related to both frontend and backend services.
  • Collaborate with product managers, UX/UI designers, DevOps engineers, and other team members.
  • Design and implement robust and scalable database solutions using MySQL/MariaDB, and NoSQL databases like MongoDB.


Requirements


  • A Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent experience.
  • Strong knowledge of frontend technologies, including HTML, CSS, JavaScript, and Angular.
  • Strong knowledge of queuing systems such as RabbitMQ and Kafka.
  • Understanding of Domain-Driven Design (DDD), Hexagonal Architecture, Clean Architecture, CQRS, and Event-Driven Architecture (Intermediate level).
  • Frameworks & Libraries, NestJS (Express-based) for scalable backend applications.
  • Database & ORM, Experience with Kysely, Knex, or similar query builders.
  • Experience with Monorepo Management like NX, pnpm workspaces, or similar tooling.
  • Proficiency in Unit Testing & End-to-End Testing (Intermediate level).
  • Strong understanding of software development methodologies, such as Agile and Scrum.
  • Excellent communication and collaboration skills.
  • Excellent problem-solving skills and the ability to work in a fast-paced environment.
  • Good grasp of containerisation principles and experience with Docker.
  • Familiarity with RESTful API design and development, as well as GraphQL, Protobuf, and Flatbuffer.
  • Understanding of Schema Validation, Familiarity with Ajv, Typebox, Zod, or equivalent libraries.
  • TypeScript for robust and maintainable code.
  • Knowledge of Package Managers – Experience with npm, pnpm, yarn, etc.
  • Experience with Redis, MySQL, and/or PostgreSQL, including complex query optimization and database design.
  • Deep experience with Next.js and React in high frequency transaction environments, including RESTful API design and development.
  • At least 5 years of experience in full-stack development with a focus on Nest.js and Node.js.


What we offer


  • Attractive remuneration package
  • Wellness benefit 
  • Training support
  • Eur1,000 Refer a friend bonus
  • Relocation package (if required)
  • One day birthday holiday 

 

You should not apply if ...


  • You want a normal 9-5 job. This role is not easy & requires an all-in mentality. We are looking for team members who will put in the work that others won't.
  • You cannot take constructive feedback.
  • You cannot handle stress and pressure.
  • You have the mindset of "Quick Money", this is a marathon, not a sprint.
  • You do not embody our core values. 

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