Senior Full-Stack Engineer – Automation & Integrations

We are looking for a Senior Full-Stack Engineer to take ownership of our email and LinkedIn automation platform and workflow builder. This role combines backend development, frontend engineering, infrastructure, and deep technical ownership of a key product area.

• Design, develop, and maintain RESTful APIs using PHP with Slim Framework.
• Implement core business logic behind automation workflows, data processing, and system orchestration.
• Maintain PostgreSQL databases, including per-customer schemas, migrations, and performance optimization.
• Build and maintain React components for the workflow builder and automation interfaces.
• Manage application state and real-time updates using WebSockets.
• Configure and maintain AWS services such as ECS (Fargate), Elastic Load Balancers, CloudWatch, Secrets Manager.
• Monitor system health, performance, and error handling.
• Develop and maintain Node.js services for background jobs and integrations.
• Handle third-line technical support escalations and perform root-cause analysis.

• Strong experience with PHP (Slim Framework), Node.js, React, PostgreSQL, AWS production infrastructure.
• Solid understanding of REST APIs, asynchronous systems, and distributed services.
• Experience debugging production systems and handling live incidents.
• Ability to work independently and take full ownership of a product area.

• An international team with enthusiastic colleagues.
• A clear career path with (international) growth opportunities.
• 26 vacation days plus an extra day off on your birthday.
• 8% holiday allowance per year.
• A solid pension plan.
• A hybrid working model: partly in the office, partly from home.
• A flexible monthly budget of €50 for various perks.
• Access to the OpenUp platform for professional mental health support.
• The option to work fully remote for 2 weeks per year.
• Tools, training, and support to perform effectively.
• Daily lunch and snacks.
• Table football, Xbox, and Mario Kart for relaxation during the day.
• Friday afternoon drinks and regular social events.