Senior Ruby on Rails Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Ruby on Rails Engineer based in the United States.
Join a fast-growing AI technology environment building scalable applications for a global user base. As a Senior Ruby on Rails Engineer, you will develop new features, enhance existing functionality, and help improve the performance and reliability of AI-powered products. You will collaborate closely with engineering leadership, product managers, and distributed technical teams to turn product requirements into effective solutions. This hands-on individual contributor role offers opportunities to influence technical decisions and take ownership of features from conception through deployment. You will work with a modern technology stack while balancing code quality, scalability, and delivery speed. The position is fully remote, with a strong emphasis on autonomy, collaboration, and continuous improvement.
Accountabilities
You will contribute to the design, development, and continuous improvement of production applications, ensuring that technical solutions support product objectives and deliver reliable user experiences.
Design, develop, and maintain scalable backend applications using Ruby on Rails.
Build new product features and improve existing platform functionality.
Collaborate with product managers to translate requirements into technical solutions and estimate development efforts.
Write clean, maintainable, well-tested code suitable for production environments.
Participate in code reviews, testing, and technical decision-making.
Troubleshoot technical issues and improve application performance, reliability, and scalability.
Take ownership of features throughout the development lifecycle, from requirements and implementation to testing and deployment.
Work closely with distributed engineering, product, and infrastructure teams to deliver high-quality solutions.
Contribute to continuous improvement in development practices, tooling, and engineering workflows.
Requirements
The ideal candidate will bring substantial hands-on Ruby on Rails experience, a strong understanding of production software development, and the ability to deliver robust solutions in a fast-paced environment.
At least 5 years of commercial experience in backend or full-stack software engineering.
Strong practical experience with Ruby on Rails, preferably recent experience building and maintaining production applications.
Demonstrated ability to develop and scale applications used by real customers.
Experience owning features from initial requirements through development, testing, and deployment.
Previous experience in a startup, scale-up, or similarly fast-moving environment.
Strong problem-solving skills and the ability to balance code quality with delivery speed.
Excellent English communication skills and experience collaborating with international teams.
Willingness and comfort working with uncensored AI companionship products and explicit NSFW content.
Technical Stack
Ruby on Rails
PostgreSQL
Redis
Hotwire, including Turbo and Stimulus
Tailwind CSS
Preferred Qualifications
Experience with generative AI, large language models (LLMs), natural language processing (NLP), or machine learning.
Familiarity with modern Rails development practices and AI-assisted coding tools.
Experience working with globally distributed engineering teams.
Benefits
Annual salary of €75,000–€105,000, depending on location and experience.
Fully remote working arrangement.
Flexible B2B contract options, with B2B preferred.
20 days of paid annual leave.
Learning and development budget.
Health and well-being support.
Company-provided laptop and equipment.
Access to AI development tools, including Cursor, Claude Code, and ChatGPT.
Direct collaboration with senior engineering leadership.
Opportunity to influence technical decisions and product development.
Annual company gathering.
How Jobgether Works
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
Why Apply Through Jobgether?
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Work arrangement
Yes