Senior Full-Stack Software Engineer, CMS

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Full-Stack Software Engineer, CMS in Belgium.We are seeking an experienced full-stack engineer to join a high-impact engineering team focused on content management and site-building platforms. In this role, you will develop and ship features used by millions of users, contributing to the evolution of a complex SaaS product. You will work across the stack, tackling challenging technical problems while shaping architecture for scalability and performance. The environment is fully remote, with a strong focus on asynchronous communication, high autonomy, and a collaborative culture that values thoughtful design and clear documentation. This is a chance to have a meaningful impact, influence product strategy, and grow professionally alongside a distributed team of talented engineers.Accountabilities:

• Build, deploy, and maintain high-quality features for CMS platforms that serve millions of users.
• Work across the full stack using React, TypeScript, and Ruby on Rails.
• Identify architectural improvements and opportunities for long-term code evolution.
• Collaborate closely with product, design, and engineering leads during planning and implementation.
• Conduct thorough code reviews and provide constructive feedback to maintain high code quality.
• Communicate proactively and effectively in an async-first environment.

Requirements:5+ years of experience building and scaling SaaS products.Strong proficiency in Ruby on Rails, React, and TypeScript.Product-oriented mindset with focus on delivering excellent user experiences.Experience with high-throughput, high-concurrency systems.Sound architectural judgment and pragmatic approach to quality.Comfortable integrating AI-assisted tools into the development workflow.Excellent async communication and collaboration skills.CEFR C2 / ILR 5 English proficiency.Bonus:Experience with CMS platforms or site builders.Prior work at early-stage or growth-stage startups.Knowledge of performance tuning and Rails scalability.Contributions to open-source projects or developer communities.Benefits:Competitive USD-based compensation ($130,000-$140,000) plus equity and annual reviews.Fully remote with flexibility to work from anywhere.35 days of paid time off annually and paid sabbaticals after 5 years.Comprehensive medical coverage or reimbursement options.Parental leave and