Senior Back-end Developer

We are hiring a senior-level Software Engineer in Rotterdam to support the development of RAS (Risk Automation Solutions), a customer-facing SaaS platform for augmented and automated underwriting. This is a backend-focused role, preferably with Ruby on Rails experience; experience owning software end-to-end is a plus. The role follows our engineering philosophy: "AI-first execution, human-competent fallback." As a leading global reinsurer, SCOR offers its clients a diversified and innovative range of reinsurance and insurance solutions and services to control and manage risk. Applying "The Art & Science of Risk," SCOR uses its industry-recognized expertise and cutting-edge financial solutions to serve its clients and contribute to the welfare and resilience of society in around 160 countries worldwide. Working at SCOR means engaging with some of the best minds in the industry - actuaries, data scientists, underwriters, risk modelers, engineers, and many others - as we work together to find solutions to pressing challenges facing societies. As an international company, our common culture is defined by "The SCOR Way." Serving both to build momentum that drives the Group forward and as a compass to guide our actions and choices, The SCOR Way is anchored by five core values, reflecting the input of employees at all levels of the Group. We care about clients, people, and societies. We perform with integrity. We act with courage. We encourage open minds. And we thrive through collaboration. SCOR supports inclusion and the diversity of talents, and all positions are open to people with disabilities. SCOR Digital Solutions is the technology arm of SCOR, one of the world's leading reinsurers. Based in Rotterdam, our team builds digital products that transform how the insurance and reinsurance industry operates. Our flagship platform, RAS (Risk Automation Solutions), delivers augmented and automated underwriting capabilities as a customer-facing SaaS application, helping insurers make faster, smarter, and more consistent risk decisions at scale. We are looking for a senior-level Software Engineer with over 5 years of professional experience to join our RAS engineering team. The role is primarily backend-focused, with Ruby on Rails preferred. Candidates without Rails experience are welcome if they can demonstrate competency in other backend stacks with similar MVC frameworks. The engineer will contribute to backend services, technical design, agentic AI workflows, testing, automation, documentation, and production support. The position is based in Rotterdam, The Netherlands, with a hybrid work arrangement and a competitive salary commensurate with experience. Key duties and responsibilities Design, develop, and maintain backend services in Ruby on Rails or an equivalent MVC framework, leveraging AI-assisted coding tools to accelerate delivery. Support the planning of technical design and architecture for new features and systems. Manage the development, orchestration, and maintenance of agentic AI agents within the RAS platform. Collaborate with frontend engineers to deliver end-to-end product features. Implement and maintain automated testing, using AI-driven tooling where appropriate while demonstrating the ability to author and debug tests manually. Conduct code reviews using AI-assisted tooling while applying sound manual judgment on quality, security, and maintainability. Contribute to database design and optimization. Automate and improve CI/CD pipelines and deployment processes, incorporating AI agents where viable. Participate in incident response and production troubleshooting, with the ability to diagnose issues independently without AI assistance. Maintain technical documentation, using AI to draft and structure content while ensuring accuracy through manual review. Required experience & competencies 5+ years of professional software engineering experience. Strong proficiency in at least one MVC backend framework; Ruby on Rails is preferred. Solid understanding of RESTful API design and relational databases. Demonstrated ability to use AI tooling, such as copilots, code generation tools, or agentic tools, to augment development workflows. Proven manual competency: able to design, code, test, and debug without AI assistance. Experience with Git and collaborative development workflows. Familiarity with AI concepts or agent-based systems. Hands-on experience with Ruby on Rails is preferred. Frontend experience with JavaScript, TypeScript, React, or similar frameworks is a plus. Experience building or integrating LLM-based agents or agentic workflows is a plus. Familiarity with containerization, such as Docker or Kubernetes, cloud platforms, CI/CD tooling, or infrastructure-as-code is a plus. Experience owning software end-to-end-from delivery through running and maintaining it in production-is a plus.