Senior Software Engineer (Ruby on Rails + React.js)

Senior Software Engineer (Ruby on Rails + React.js)

Why Tech9

Tech9 is shaking up a 20-year-old industry — and we’re not slowing down. Recognized by Inc. 5000 as one of the nation’s fastest-growing companies, ranked #23 among Utah’s fastest-growing companies, and named one of Forbes’ Top 500 Startup Companies to Work For (two years in a row!), we’re redefining what it means to build great software and great teams.

If you’re an exceptional software engineer looking to take the next step in your career, this role is the perfect opportunity to grow your expertise, contribute to high-impact projects, and work in a culture that values craftsmanship, autonomy, and innovation.

About the Role

We’re seeking a talented Senior Software Engineer with strong expertise in Ruby on Rails (RoR) and React.js to join our growing team.

In this role, you’ll collaborate with other software and QA engineers to build high-quality, scalable web applications from scratch. You’ll work across multiple projects, tackling challenging problems, modernizing existing systems, and contributing to full-stack development across both front-end and back-end technologies.

This is an exciting opportunity for engineers who thrive in collaborative environments, enjoy solving complex technical problems, and want to make an impact through clean, maintainable code and best engineering practices.

Main Responsibilities

• Collaborate with a team of software, data, and QA engineers to develop high-quality web applications from the ground up.
• Perform full-stack web development using Ruby on Rails and React.js, building scalable, performant, and maintainable solutions.
• Work across multiple products and navigate ambiguity effectively.
• Identify, troubleshoot, and resolve bugs and defects in both front-end and back-end codebases.
• Support and maintain existing applications and integrations.
• Follow standard software development, testing, and deployment processes.
• Ensure assigned user stories have sufficient clarity and detail for proper implementation.
• Provide reliable time estimates for assigned tasks and features.
• Collaborate with project managers to refine requirements and align on technical approaches.
• Conduct peer code reviews to ensure adherence to coding standards and architectural best practices.
• Make thoughtful recommendations for codebase and process improvements.
• Take ownership of your work, demonstrating curiosity, initiative, and a commitment to quality.

Minimum Qualifications

• 6+ years of professional software development experience.
• Strong hands-on experience with Ruby on Rails and React.js.
• Hands-on experience on any cloud environments like AWS/GCP
• Strong hold on db like PostgreSql or MySql
• Must be familiar with sidekiq or any background job processing system
• Strong understanding of code and should be able to refactor the existing code.
• Must have strong understanding of Git flow
• Must have strong understanding of any of the Javascript frameworks
• Proficient in both front-end and back-end development, with a willingness to work across the stack.
• Demonstrated ownership mindset — proactive, curious, and collaborative.
  Skilled at using engineering tools to identify and resolve complex software issues.
• Must have ability to work independently or as part of a team
• Advanced English proficiency (C1 or higher) for clear communication with international teams.
• Must be located in India and available to work from 7:00 PM–10:00 PM IST at least three days per week.

What You’ll Love About Tech9

At Tech9, we prioritize freedom, flexibility, and craftsmanship. When you join us, you can expect:

• Challenging and meaningful projects that push your technical boundaries.
• Flexibility and autonomy in how you deliver solutions.
• A collaborative environment with skilled, supportive, and friendly teammates.
• Full support to develop software the right way, not the fast way.
• No unnecessary bureaucracy — just the tools and structure you need to succeed.
• 100% remote work — forever!

Interview Process

Our hiring process is designed to be efficient, transparent, and respectful of your time.

1. 30-minute on-demand HireVue screening – Situational and behavioral questions to understand your ownership mindset, adaptability, and approach to collaboration.
2. 10-minute virtual Q&A with our recruiter – A conversation to clarify the role and answer your questions (not an interview).
3. 60-minute live technical interview – Conducted with a member of our engineering team.
4. 60 minute chat with the hiring manager – To align on expectations and culture fit.
5. 30–60 minute client session – Final step to ensure alignment with client needs

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