Senior Ruby on Rails and React Developer

Monterail Sp. z o.o. has 150+ experts and has completed 900+ projects. The company builds web and mobile apps for startups and industry leaders worldwide, specializing in Ruby on Rails, Vue.js, and related technologies.

• 8+ years of experience in software development, with deep, senior-level expertise in Ruby on Rails and React.
• A proven senior profile, someone who defines direction, shapes systems, and confidently makes architectural and product decisions.
• Strong sense of end-to-end ownership: comfortable setting the roadmap, identifying gaps, and continuously building on top of existing systems without close guidance.
• Senior-level commitment to quality, with extensive experience designing and maintaining robust test suites; testing is a core part of the build process.
• Clear and demonstrated focus on admin panels and internal tooling, designed for usability, maintainability, and long-term evolution.
• Experience working closely with internal stakeholders, with communication skills and seniority to translate needs into well-structured solutions.
• Background in smaller-scale environments where pragmatic decision-making and thoughtful trade-offs are prioritized over hyper-scale concerns.
• A self-directed, senior mindset, bringing structure to ambiguity, operating independently, and taking responsibility for technical direction and outcomes.

• 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.