Senior Backend Engineer

Senior Backend Engineer

As a Senior Backend Engineer, you will play a vital role in designing, developing, and maintaining mission‑critical web applications and APIs. You will work closely with the team to drive architectural decisions, implement robust and scalable solutions, and ensure the delivery of high‑quality software products.

• Design and develop highly scalable and efficient backend systems using Node.js, Type Script, and modern JavaScript frameworks and libraries.
• Leverage your expertise in Domain‑Driven Design (DDD), Clean Architecture, and other architectural patterns to build maintainable and extensible applications.
• Design and implement RESTful APIs, ensuring adherence to industry best practices and standards for API design, documentation, and security.
• Ensure the security and compliance of backend systems, adhering to industry standards and best practices for data protection, access control, and regulatory requirements.
• Collaborate with stakeholders to ensure seamless integration and deployment of backend services.
• Implement robust testing strategies, including unit, integration, and end‑to‑end testing, to ensure the reliability and quality of the codebase.
• Leverage AWS services such as EC2, S3, RDS, Lambda, and others to build scalable and resilient applications.
• Continuously monitor and optimize application performance, identifying and resolving bottlenecks and performance issues.
• Participate in code reviews, mentor junior engineers, and promote best practices within the team.

• 5+ years of industry experience in software engineering, with a strong focus on backend development for full‑stack web applications.
• Proven expertise in Node, Type Script, and modern JavaScript development methodologies, processes, and tooling.
• Thorough understanding of architectural patterns and principles, such as Domain‑Driven Design (DDD) and Clean Architecture.
• Extensive experience with API design and implementation, including RESTful APIs, API documentation, and API security.
• Knowledge of microservices architectures and event‑driven architectures.
• Hands‑on experience with multiple AWS services, including EC2, S3, RDS, Lambda, and others, for at least 2 years.
• Strong problem‑solving and analytical skills, with a keen eye for detail and a commitment to delivering high‑quality code.
• Excellent communication and collaboration skills, with the ability to effectively articulate technical concepts to both technical and non‑technical stakeholders.
• Proficiency in English, both written and verbal.

• Experience with containerization technologies such as Docker and AWS ECS.
• Familiarity with serverless architectures and serverless frameworks (e.g., AWS Lambda, AWS Serverless Application Model).
• Experience with agile software development methodologies and continuous integration/continuous deployment (CI/CD) practices.
• Experience/understanding of Functional Programming and its benefits (bonus but not required).
• Experience with Terraform/Terragrunt (bonus but not required).

• Seniority level:
  Not Applicable
• Employment type:
  
  Full‑time
• Job function:
  Information Technology
• Industries:
  Technology, Information and Internet
• Location:
  
  Brussels, Brussels Region, Belgium
• Salary: $ – $