Monterail is looking for a Senior Ruby on Rails and React Developer (Expert) to join our team!

We are Monterail. A team of developers and designers building beautiful and meaningful software everyday. We work with clients around the globe. We’ve helped businesses of all sizes in all continents with high profiled web development skills as well as strong product and UX design expertise.

We are looking for savvy people to join our team and help us build a better web.

Learn more: https://www.monterail.com/careers

What We’re Looking For

• 8+ years of experience in software development, with deep, senior-level expertise in Ruby on Rails and React
• A proven senior profile, someone who doesn’t just execute, but defines direction, shapes systems, and confidently makes architectural and product decisions
• Strong sense of end-to-end ownership: you are comfortable setting the roadmap, identifying gaps, and continuously building on top of existing systems without needing close guidance
• A senior-level commitment to quality, with extensive experience designing and maintaining robust test suites; testing is a core part of how you build, not an afterthought
• Clear and demonstrated focus on admin panels and internal tooling, with the maturity to design for usability, maintainability, and long-term evolution (not user-facing products)
• Experience working closely with internal stakeholders, with the communication skills and seniority to translate needs into well-structured solutions across varying levels of complexity
• Background in smaller-scale environments (e.g., internal tools, limited user bases), where pragmatic decision-making and thoughtful trade-offs are more important than hyper-scale concerns
• A self-directed, senior mindset, you bring structure to ambiguity, operate independently, and take responsibility for both the technical direction and its outcomes

What you'll do

• End-to-End Ownership: Identify system gaps and operational inefficiencies independently, proactively building solutions that strengthen the platform.
• Drive Autonomous Outcomes: Operate with a self-directed mindset, bringing order to complex projects and taking ultimate responsibility for technical outcomes and system health.
• Uphold Engineering Excellence: Treat testing as a foundational pillar, designing robust suites that ensure the system remains resilient as it evolves.
• Stakeholder Collaboration: Partner directly with internal teams to translate complex departmental workflows into elegant, automated software solutions.